Chapter 6Fire and Loading

NBC 2016 (SP 7:2016) Volume 1

2016 · PDF page 1174

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6.1 Determination of Appropriate Glass Thickness

6.1.1 General

This Section gives provisions to determine the minimum glass thickness to be used to resist the ultimate limit state design wind pressures. However, the location of the glass within the building require additional considerations, such as safety with respect to human which may impose either a minimum glass thickness above the basic calculation of this part or a provision for a specific glass type or both.

In addition to the provisions herein, the design requirements such as wind loads determined in accordance with good practice $[6-8(7)]$ and the serviceability deflection requirement limit given in this Section shall have to be complied.

The provisions under 6 are applicable provided the following parameters are satisfied:

a) Ultimate limit state wind pressure shall not be greater than 10 kPa.

b) For laminated glass, the two sheets are of equal thickness and the interlayer material is either polyvinyl butyral or an equivalent type of interlayer with a modulus of elasticity of about 24 MPa and a Poisson's ratio of 0.50 at 20°C.

c) Design flexural tensile strength of glass depends upon the design strength obtained after applying a factor of safety of 2.5. The

minimum design strength of normal glass for thickness up to 6 mm is 16.7 N/mm $^{2}$ and for thickness above 6 mm is 15.2 N/mm $^{2}$ .

6.1.2 Design Considerations

The following design considerations shall be considered in determination of appropriate thickness of glass:

a) Maximum area of glass panel is restricted to $15\mathrm{m}^2$

b) Maximum span of window is restricted to $4\mathrm{m}$ .

c) Aspect ratio of the glass panel should be greater than 1.5. If it is less than 1.5, next higher available thickness should be selected.

d) Factor of safety used is 2.5 considering the variability in strength of glass.

e) Applicable to normal, reflective, laminated, tempered and insulating glass.

f) Applicable to rectangular panels properly secured.

g) Design minimum thickness of laminated glass will be the maximum value of thickness in accordance with the Table 5.

h) Any recognized method of analysis may be used for design, in consultation with the manufacturer.

6.1.3 Empirical Relationship

Empirical relation between the wind pressure, area of the glass panel and the required glass thickness can be used:

P _ {\mathrm{net}} A = 2 0 0 T ^ {\mathrm{k}} (\text {for} T \leq 6 \mathrm{mm})

P _ {\mathrm{net}}. A = 2 0 0 T ^ {\mathrm{k}} + 1 9 0 0 (\text {for} T > 6 \mathrm{mm})

where

$P_{net} = \text{Net design wind pressure as per 6.1.4, in N/m}^{2};$

$A =$ Area of glass panel, in $\mathrm{m}^2$

T = Standard nominal thickness (SNT) of glass from Table 14, in mm; and

$k =$ Constant from the Table 14.

Table 14Value of k for the Corresponding Standard Nominal Thickness of Float Glass (Clause 6.1.3)

T, mm	3	4	5	6	8	10	12	15	19	25
k	1.683	1.732	1.753	1.765	1.57	1.578	1.583	1.579	1.569	1.569

6.1.3.1 Glass supported on two opposite sides

a) Normal and laminated glass panels supported on two opposite sides can be designed using following empirical relations:

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

For $T \leq 6 \, mm$ :

b = \frac {4 . 3 9 T}{\sqrt {\left(\frac {P _ {\mathrm{net}}}{P _ {\mathrm{f}}}\right)}}

For $T > 6\mathrm{mm}$ :

b = \frac {4 . 2 2 T}{\sqrt {\left(\frac {P _ {\mathrm{net}}}{P _ {\mathrm{f}}}\right)}}

b) Tempered/toughened panel supported on two opposite sides can be designed using following empirical relations:

For $T \leq 6 \, mm$ :

b = \frac {3 . 2 6 8 8 T}{\sqrt {\left(\frac {P _ {\mathrm{net}}}{P _ {\mathrm{f}}}\right)}}

For $T > 6\mathrm{mm}$ :

b = \frac {2 . 9 0 6 9 T}{\sqrt {\left(\frac {P _ {\mathrm{net}}}{P _ {\mathrm{f}}}\right)}}

where

$b = \text{span, in m; and}$

$P_{\mathrm{f}} =$ strength factor as in Table 15.

For insulated glass, thickness of only one glass pane shall be considered. If the glass panes are of different thickness, the minimum of the two thicknesses shall be considered.

For laminated glass, the thickness of PVB has not been considered. The value to be used is;

T = Standard nominal thickness - Thickness of PVB.

For non-linear analysis, specialist literature may be consulted.

6.1.4 Determination of Design Wind Pressure

Net design wind pressure $(P_{\mathrm{net}})$ is an important parameter governing the thickness of glass to be used in the window panels. It depends on factors as given below:

a) Location of the building (wind zone);

b) Construction patterns around buildings (terrain category);

c) Topography of site;

d) Building plan and height, etc.

Net design wind pressure $(P_{\mathrm{net}})$ , may be defined using

the following equation:

P _ {\mathrm{net}} = p _ {z} \cdot C _ {\mathrm{p}}

where

$C_{p}$ = net pressure coefficient as per good practice [6-8(7)]; and

$p_{z}$ = design wind pressure as per good practice [6-8(7)], in N/m $^{2}$ .

= 0. 6 V _ {z} ^ {2}

V _ {\mathrm{z}} = V _ {\mathrm{b}}, k _ {1}, k _ {2}, k _ {3}, k _ {4}

where

$V_{\mathrm{b}} =$ basic wind speed based on Location [as per Fig. 1 of good practice [6-8(7)];

$k_{1} =$ risk co-efficient factor;

$k_{2} =$ terrain factor;

$k_{3} =$ topography factor;

$k_{4} =$ importance factor for the cyclonic region and

$V_{\mathrm{z}} =$ design wind speed, in $\mathrm{m / s}$

6.1.4.1 Laminated/tempered/insulating glass

To determine the thickness of laminated/tempered/insulating glass, the design wind pressure $P_{net}$ is modified by dividing it with the strength or pressure factor $P_{f}$ , dependent on the type of glass. The values of the $P_{f}$ are given in Table 15.

Using the modified values of $P_{\mathrm{net}}$ , the thickness of other glass types can be obtained in accordance with 6.1.3.

Table 15Strength Factor, P_{\mathrm{f}} [Clause 6.1.3.1(b)]

Sl No.(1)	Glass Type(2)	$P_{\mathrm {f}}$ (3)
i)	Normal (Annealed)	1.00
ii)	Laminated	0.80
iii)	Tempered	2.50
iv)	Insulated	1.50
v)	Heat strengthened	1.60
vi)	Wired glass	0.50

6.1.5 Aspect Ratio ( $AR\{max\}$ )

The design of the thickness using empirical relation in accordance with 6.1.3 shall be valid up to a limiting aspect ratio $AR_{\mathrm{max}}$ . The value of $AR_{\mathrm{max}}$ for different thickness (T) of glass is given in Table 16.

Table 16 Thickness and Corresponding $AR_{\text{max}}$ Values(Clause 6.1.5)
T, mm	3	4	5	6	8	10	12	15	19	25
$AR_{\text{max}}$	7.3	6.8	6.5	6.3	5.9	4.9	4.3	3.8	3.3	2.9

6.1.6 Seismic Design

6.1.6.1 Seismic load (EQ)

The design for seismic forces shall be performed in steps to establish upper and lower bound force and movement response parameters. In addition, the response of the structure sensitive to certain parameters such as the damping and the stiffness of the support points may be evaluated.

The principal design criteria for the seismic design are,

a) Structure will remain elastic during the design seismic event.

b) ‘Hangers’ will stiffen the cantilever ‘tree’ structure.

c) ‘Hangers’ will not go slack.

6.1.6.2 Non-structural elements

Depending on response sensitivity, non-structural elements can be classified as deformation sensitive, acceleration sensitive, or both deformation and acceleration sensitive. Table 17 classifies non-structural elements according to their response sensitivity

Table 17Response Sensitivity of Architectural Component (Clause 6.1.6.2)

Sl No.	Component	Sensitivity
Sl No.	Component	Acceleration Sensitive (3)	Deformation Sensitive (4)
(1)	(2)	Acceleration Sensitive (3)	Deformation Sensitive (4)
i)	Exterior skin:
	a) Adhered veneer	S	P
	b) Anchored veneer	S	P
	c) Glass blocks	S	P
	d) Prefabricated panel	S	P
	e) Glazing system	S	P
ii)	Partitions:
	a) Heavy	S	P
	b) Light	S	P
iii)	Interior veneers:
	a) Stone, including marble	S	P
	b) Ceramic tile	S	P
iv)	Parapets and appendages	P	—
v)	Canopies and marquees	P	—
vi)	Stairs	P	S
NOTES
1 P = Primary response.
2 S = Secondary response.

6.1.6.3 Design seismic force

Design seismic force, $F_{\mathrm{p}}$ , on the non-structural element shall be calculated using the following expression:

F _ {\mathrm{p}} = \frac {Z}{2} \left(1 + \frac {x}{h}\right) \frac {a _ {\mathrm{p}}}{R _ {\mathrm{p}}} I _ {\mathrm{p}} W _ {\mathrm{p}} \geq 0. 1 0 W _ {\mathrm{p}}

where

$Z =$ zone factor {as per Table 2 of good practice [6-8(8)]};

x = height of point of attachment of the non-structural element above the foundation;

$h =$ height of the structure;

$a_{\mathrm{p}} =$ component amplification factor given in Table 18;

$R_{p}$ = component response factor of the non-structural modification factor given in Table 18;

$I_{\mathrm{p}} =$ importance element (to be taken as 1.5); and

$W_{\mathrm{p}} =$ weight of the non-structural element.

Table 18Modification Factors (Clause 6.1.6.3)

Sl No.	Architectural Component or Element	$a_p$ (see Note)	$R_p$
(1)	(2)	(3)	(4)
i)	Interior non-structural walls and partitions:
	a) Plain (unreinforced) masonry walls	1.0	1.5
	b) All other walls and partitions	1.0	2.5
ii)	Cantilever elements (braced to structural frame above its centre of mass):
	a) Parapets	1.0	1.5
	b) Chimneys and stacks	1.0	2.5
	c) Exterior non-structural walls	1.0	2.5
iii)	Exterior non-structural wall elements and connections:
	a) Wall element	1.0	2.5
	b) Body of wall panel connection	1.0	2.5
	c) Fasteners of the connecting system	1.25	1.0
iv)	Veneer:
	a) High deformability elements and attachments	1.0	2.5
	b) Low deformability elements and attachments	1.0	1.5

NOTE — A lower value of $a_{p}$ is permitted provided a detailed dynamic analysis is performed which justifies a lower value. The value of $a_{p}$ shall not be less than 1.0. The value of $a_{p} = 1.0$ is for equipment generally regarded as rigid and rigidly attached. The value of $a_{p} = 2.5$ is for flexible components or flexibly attached components.

6.1.6.4 Seismic relative displacement

a) For two connection points on the same structure ‘A’, one at a height $h_{x}$ , and other at a height $h_{y}$ , seismic relative displacement shall be determined as:

D _ {\mathrm{p}} = \delta_ {\mathrm{xA}} - \delta_ {\mathrm{yA}}

$D_{\mathrm{p}}$ is not required to be taken as greater than

R\left(h_{\mathrm{x}} - h_{\mathrm{y}}\right)\frac{\Delta_{\mathrm{aA}}}{h_{\mathrm{sx}}}

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

where

$\delta_{xA} =$ deflection at building level x of structure A due to design seismic load determined by elastic analysis, and multiplied by response reduction factor R of the building as per Table 9 of good practice [6-8(8)];

$\delta_{yA} =$ deflection at building level y of structure A due to design seismic load determined by elastic analysis, and multiplied by response reduction factor R of the building as per Table 9 of good practice [6-8(8)];

$h_{\mathrm{x}} =$ height of level x to which upper connection point is attached;

$h_{\mathrm{y}} =$ height of level y to which lower connection point is attached;

$\Delta_{aA} =$ allowable storey drift for structure A calculated as per 7.11.1.1 of good practice [6-8(8)]; and

$h_{\mathrm{s x}} =$ storey height below level x.

b) For two connection points on separate structures A and B, or separate structural systems, one at height, $h_{x}$ , and the other at a height, $h_{y}$ , $D_{p}$ shall be determined as:

D _ {\mathrm{p}} = \left| \delta_ {\mathrm{xA}} \right| + \left| \delta_ {\mathrm{yB}} \right|

$D_{\mathfrak{p}}$ is not required to be taken as greater than

R \left(h _ {\mathrm{x}} \frac {\Delta_ {\mathrm{aA}}}{h _ {\mathrm{sx}}} + h _ {\mathrm{y}} \frac {\Delta_ {\mathrm{aB}}}{h _ {\mathrm{sx}}}\right)

where

$\delta_{yB} =$ deflection at building level y of structure B due to design seismic load determined by elastic analysis, and multiplied by response reduction factor, R, of the building as per Table 9 of good practice [6-8(8)]

$\Delta_{aB} =$ allowable storey drift for structure B calculated as per 7.11.1.1 of good practice [6-8(8)]

6.1.7 Imposed Loads

The uniform distributed load and point load is to be considered based on application and is to be selected in accordance with good practice [6-8(9)]. Appropriate uniform distributed load (UDL) and concentrated load are selected in accordance to good practice [6-8(9)] based on nature of building (for example, residential, institutional, industrial building, etc) and nature of activity under each building type.

6.1.8 Load Contribution

6.1.8.1 Wind load

The wind load is the effect of wind pressure which is dependent on the location, building height, topography and ground roughness factor. The wind speed is taken from good practice [6-8(7)] for the geographic location.

6.1.8.2 Dead load

In case of inclined sloped glazing, the dead weight of the glazing should be considered. In case of component of sloped glazing, the following corresponding component of the total glazing may be used:

a) Point load shall be applied as a uniformly distributed load over a circular area of $0.01 \, m^{2}$ .

b) For a glazed panel supported on all edges, the point loading shall be applied at the centre.

c) For free glazing edges, the point load shall be applied adjacent to the centre of the free edge.

d) Ultimate limit state design wind pressure shall not be greater than 1.2 kPa. For greater design wind pressures, the glass shall be separately designed to withstand wind loading in accordance with 6.1.4.

6.1.9 Reference Chart Relating Wind Load, Maximum Allowable Area for a Thickness of Glass with respect to Terrain Category

Table 19 to Table 27 provides relation between design wind pressure and maximum allowable area for a thickness of glass with respect to specific terrain category. User may select the type of glass depending on the support conditions.

Specialist literature may be consulted for use of nonlinear analysis and the like for laminated glass.

The deflection at the centre of glass pane can be calculated using the formula in accordance to Annex C.

Typical model calculation to calculate thickness and determine wind load and deflection at the centre of the glazing is given at Annex D.

6.2Installation

6.2.1 Basic installation requirements and materials used for glass are given hereunder.

NOTES

1 The provisions under this item do not include the use of other methods or systems for glazing, provided the alternate method or system can be demonstrated to satisfy the requirements for correctly supporting the glass within the frame, or glazing system. 2 Patent and other proprietary systems are not described/ covered here.

3 Installation technique for frameless glazing system is not covered here.

Table 19Maximum Areas for Annealed Glass Fixed on All Four Sides, m² (Clause 6.1.9)

Design Wind Pressure $N/m^2$	Nominal Thickness of Annealed Glass, Tmm
Design Wind Pressure $N/m^2$	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	2.13	3.86	6.03	8.63	13.06	15.00	15.00	15.00	15.00
550	1.93	3.51	5.48	7.85	11.88	15.00	15.00	15.00	15.00
600	1.77	3.21	5.02	7.19	10.89	14.61	15.00	15.00	15.00
650	1.64	2.97	4.64	6.64	10.05	13.48	15.00	15.00	15.00
700	1.52	2.75	4.31	6.17	9.33	12.52	15.00	15.00	15.00
750	1.42	2.57	4.02	5.76	8.71	11.69	14.75	15.00	15.00
800	1.33	2.41	3.77	5.40	8.16	10.96	13.83	15.00	15.00
850	1.25	2.27	3.55	5.08	7.68	10.31	13.01	15.00	15.00
900	1.18	2.14	3.35	4.80	7.26	9.74	12.29	15.00	15.00
950	1.12	2.03	3.17	4.54	6.88	9.23	11.64	15.00	15.00
1 000	1.06	1.93	3.01	4.32	6.53	8.76	11.06	15.00	15.00
1 050	1.01	1.84	2.87	4.11	6.22	8.35	10.53	14.38	15.00
1 100	0.97	1.75	2.74	3.92	5.94	7.97	10.06	13.73	15.00
1 150	0.93	1.68	2.62	3.75	5.68	7.62	9.62	13.13	15.00
1 200	0.89	1.61	2.51	3.60	5.44	7.30	9.22	12.58	15.00
1 250	0.85	1.54	2.41	3.45	5.23	7.01	8.85	12.08	15.00
1 300	0.82	1.48	2.32	3.32	5.02	6.74	8.51	11.61	15.00
1 350	0.79	1.43	2.23	3.20	4.84	6.49	8.19	11.18	14.98
1 400	0.76	1.38	2.15	3.08	4.67	6.26	7.90	10.78	14.44
1 450	0.73	1.33	2.08	2.98	4.50	6.04	7.63	10.41	13.95
1 500	0.71	1.29	2.01	2.88	4.35	5.84	7.37	10.07	13.48
1 550	0.69	1.24	1.94	2.78	4.21	5.65	7.14	9.74	13.05
1 600	0.67	1.21	1.88	2.70	4.08	5.48	6.91	9.44	12.64
1 650	0.64	1.17	1.83	2.62	3.96	5.31	6.70	9.15	12.25
1 700	0.63	1.13	1.77	2.54	3.84	5.16	6.51	8.88	11.89
1 750	0.61	1.10	1.72	2.47	3.73	5.01	6.32	8.63	11.55
1 800	0.59	1.07	1.67	2.40	3.63	4.87	6.14	8.39	11.23
1 850	0.58	1.04	1.63	2.33	3.53	4.74	5.98	8.16	10.93
1 900	0.56	1.01	1.59	2.27	3.44	4.61	5.82	7.95	10.64
1 950	0.55	0.99	1.55	2.21	3.35	4.49	5.67	7.74	10.37
2 000	0.53	0.96	1.51	2.16	3.27	4.38	5.53	7.55	10.11
2 050	0.52	0.94	1.47	2.11	3.19	4.28	5.40	7.36	9.86
2 100	0.51	0.92	1.44	2.06	3.11	4.17	5.27	7.19	9.63
2 150	0.49	0.90	1.40	2.01	3.04	4.08	5.14	7.02	9.40
2 200	0.48	0.88	1.37	1.96	2.97	3.98	5.03	6.86	9.19
2 250	0.47	0.86	1.34	1.92	2.90	3.90	4.92	6.71	8.99
2 300	0.46	0.84	1.31	1.88	2.84	3.81	4.81	6.56	8.79
2 350	0.45	0.82	1.28	1.84	2.78	3.73	4.71	6.42	8.60
2 400	0.44	0.80	1.26	1.80	2.72	3.65	4.61	6.29	8.43
2 450	0.43	0.79	1.23	1.76	2.67	3.58	4.51	6.16	8.25
2 500	0.43	0.77	1.21	1.73	2.61	3.51	4.42	6.04	8.09
2 550	0.42	0.76	1.18	1.69	2.56	3.44	4.34	5.92	7.93
2 600	0.41	0.74	1.16	1.66	2.51	3.37	4.25	5.81	7.78
2 650	0.40	0.73	1.14	1.63	2.46	3.31	4.17	5.70	7.63
2 700	0.39	0.71	1.12	1.60	2.42	3.25	4.10	5.59	7.49
2 750	0.39	0.70	1.10	1.57	2.38	3.19	4.02	5.49	7.35
2 800	0.38	0.69	1.08	1.54	2.33	3.13	3.95	5.39	7.22
2 850	0.37	0.68	1.06	1.51	2.29	3.08	3.88	5.30	7.09
2 900	0.37	0.66	1.04	1.49	2.25	3.02	3.81	5.21	6.97
2 950	0.36	0.65	1.02	1.46	2.21	2.97	3.75	5.12	6.85
3 000	0.35	0.64	1.00	1.44	2.18	2.92	3.69	5.03	6.74
3 050	0.35	0.63	0.99	1.42	2.14	2.87	3.63	4.95	6.63
3 100	0.34	0.62	0.97	1.39	2.11	2.83	3.57	4.87	6.52
3 150	0.34	0.61	0.96	1.37	2.07	2.78	3.51	4.79	6.42
3 200	0.33	0.60	0.94	1.35	2.04	2.74	3.46	4.72	6.32
3 250	0.33	0.59	0.93	1.33	2.01	2.70	3.40	4.65	6.22
3 300	0.32	0.58	0.91	1.31	1.98	2.66	3.35	4.58	6.13
3 350	0.32	0.58	0.90	1.29	1.95	2.62	3.30	4.51	6.04
3 400	0.31	0.57	0.89	1.27	1.92	2.58	3.25	4.44	5.95
3 450	0.31	0.56	0.87	1.25	1.89	2.54	3.21	4.38	5.86

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 19(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
3 500	0.30	0.55	0.86	1.23	1.87	2.50	3.16	4.31	5.78
3 550	0.30	0.54	0.85	1.22	1.84	2.47	3.12	4.25	5.70
3 600	0.30	0.54	0.84	1.20	1.81	2.43	3.07	4.19	5.62
3 650	0.29	0.53	0.83	1.18	1.79	2.40	3.03	4.14	5.54
3 700	0.29	0.52	0.81	1.17	1.77	2.37	2.99	4.08	5.47
3 750	0.28	0.51	0.80	1.15	1.74	2.34	2.95	4.03	5.39
3 800	0.28	0.51	0.79	1.14	1.72	2.31	2.91	3.97	5.32
3 850	0.28	0.50	0.78	1.12	1.70	2.28	2.87	3.92	5.25
3 900	0.27	0.49	0.77	1.11	1.67	2.25	2.84	3.87	5.18
3 950	0.27	0.49	0.76	1.09	1.65	2.22	2.80	3.82	5.12
4 000	0.27	0.48	0.75	1.08	1.63	2.19	2.77	3.77	5.06
4 050	0.26	0.48	0.74	1.07	1.61	2.16	2.73	3.73	4.99
4 100	0.26	0.47	0.74	1.05	1.59	2.14	2.70	3.68	4.93
4 150	0.26	0.46	0.73	1.04	1.57	2.11	2.67	3.64	4.87
4 200	0.25	0.46	0.72	1.03	1.56	2.09	2.63	3.59	4.81
4 250	0.25	0.45	0.71	1.02	1.54	2.06	2.60	3.55	4.76
4 300	0.25	0.45	0.70	1.00	1.52	2.04	2.57	3.51	4.70
4 350	0.24	0.44	0.69	0.99	1.50	2.01	2.54	3.47	4.65
4 400	0.24	0.44	0.69	0.98	1.48	1.99	2.51	3.43	4.60
4 450	0.24	0.43	0.68	0.97	1.47	1.97	2.49	3.39	4.54
4 500	0.24	0.43	0.67	0.96	1.45	1.95	2.46	3.36	4.49
4 550	0.23	0.42	0.66	0.95	1.44	1.93	2.43	3.32	4.44
4 600	0.23	0.42	0.66	0.94	1.42	1.91	2.40	3.28	4.40
4 650	0.23	0.41	0.65	0.93	1.40	1.88	2.38	3.25	4.35
4 700	0.23	0.41	0.64	0.92	1.39	1.86	2.35	3.21	4.30
4 750	0.22	0.41	0.63	0.91	1.38	1.85	2.33	3.18	4.26
4 800	0.22	0.40	0.63	0.90	1.36	1.83	2.30	3.15	4.21
4 850	0.22	0.40	0.62	0.89	1.35	1.81	2.28	3.11	4.17
4 900	0.22	0.39	0.62	0.88	1.33	1.79	2.26	3.08	4.13
4 950	0.21	0.39	0.61	0.87	1.32	1.77	2.23	3.05	4.08
5 000	0.21	0.39	0.60	0.86	1.31	1.75	2.21	3.02	4.04
Maximum aspect ratio	7.3	6.8	6.5	6.3	5.9	4.9	4.3	3.8	3.3

Table 20Maximum Areas for Laminated Glass Fixed on All Four Sides, \mathrm{m}^2 (Clause 6.1.9)

Design Wind Pressure	Nominal Thickness of Laminated Glass, T mm
Design Wind Pressure	N/m2(1)	5.38(2)	6.38(3)	8.38(4)	10.38(5)	12.38(6)
500	4.47	6.28	10.45	14.02	15.00	15.00
550	4.06	5.71	9.50	12.75	15.00	15.00
600	3.72	5.23	8.71	11.69	15.00	15.00
650	3.44	4.83	8.04	10.79	13.93	15.00
700	3.19	4.48	7.46	10.02	12.94	15.00
750	2.98	4.19	6.97	9.35	12.08	15.00
800	2.79	3.92	6.53	8.76	11.32	15.00
850	2.63	3.69	6.15	8.25	10.66	15.00
900	2.48	3.49	5.81	7.79	10.06	14.21
950	2.35	3.30	5.50	7.38	9.53	13.46
1 000	2.23	3.14	5.23	7.01	9.06	12.79
1 050	2.13	2.99	4.98	6.68	8.63	12.18
1 100	2.03	2.85	4.75	6.37	8.23	11.63
1 150	1.94	2.73	4.54	6.10	7.88	11.12
1 200	1.86	2.62	4.35	5.84	7.55	10.66
1 250	1.79	2.51	4.18	5.61	7.25	10.23
1 300	1.72	2.41	4.02	5.39	6.97	9.84
1 350	1.66	2.33	3.87	5.19	6.71	9.47
1 400	1.60	2.24	3.73	5.01	6.47	9.14
1 450	1.54	2.16	3.60	4.84	6.25	8.82
1 500	1.49	2.09	3.48	4.67	6.04	8.53

Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)
(1)	(2)	(3)	(4)	(5)	(6)	(7)
1 550	1.44	2.03	3.37	4.52	5.84	8.25
1 600	1.40	1.96	3.27	4.38	5.66	7.99
1 650	1.35	1.90	3.17	4.25	5.49	7.75
1 700	1.31	1.85	3.07	4.12	5.33	7.52
1 750	1.28	1.79	2.99	4.01	5.18	7.31
1 800	1.24	1.74	2.90	3.90	5.03	7.11
1 850	1.21	1.70	2.82	3.79	4.90	6.91
1 900	1.18	1.65	2.75	3.69	4.77	6.73
1 950	1.15	1.61	2.68	3.60	4.64	6.56
2 000	1.12	1.57	2.61	3.51	4.53	6.40
2 050	1.09	1.53	2.55	3.42	4.42	6.24
2 100	1.06	1.49	2.49	3.34	4.31	6.09
2 150	1.04	1.46	2.43	3.26	4.21	5.95
2 200	1.02	1.43	2.38	3.19	4.12	5.81
2 250	0.99	1.40	2.32	3.12	4.03	5.68
2 300	0.97	1.36	2.27	3.05	3.94	5.56
2 350	0.95	1.34	2.22	2.98	3.85	5.44
2 400	0.93	1.31	2.18	2.92	3.77	5.33
2 450	0.91	1.28	2.13	2.86	3.70	5.22
2 500	0.89	1.26	2.09	2.80	3.62	5.12
2550	0.88	1.23	2.05	2.75	3.55	5.02
2 600	0.86	1.21	2.01	2.70	3.48	4.92
2 650	0.84	1.18	1.97	2.65	3.42	4.83
2 700	0.83	1.16	1.94	2.60	3.35	4.74
2 750	0.81	1.14	1.90	2.55	3.29	4.65
2 800	0.80	1.12	1.87	2.50	3.23	4.57
2 850	0.78	1.10	1.83	2.46	3.18	4.49
2 900	0.77	1.08	1.80	2.42	3.12	4.41
2 950	0.76	1.06	1.77	2.38	3.07	4.34
Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)
(1)	(2)	(3)	(4)	(5)	(6)	(7)
3 000	0.74	1.05	1.74	2.34	3.02	4.26
3 050	0.73	1.03	1.71	2.30	2.97	4.19
3 100	0.72	1.01	1.69	2.26	2.92	4.13
3 150	0.71	1.00	1.66	2.23	2.88	4.06
3 200	0.70	0.98	1.63	2.19	2.83	4.00
3 250	0.69	0.97	1.61	2.16	2.79	3.94
3 300	0.68	0.95	1.58	2.12	2.74	3.88
3 350	0.67	0.94	1.56	2.09	2.70	3.82
3 400	0.66	0.92	1.54	2.06	2.66	3.76
3 450	0.65	0.91	1.51	2.03	2.63	3.71
3 500	0.64	0.90	1.49	2.00	2.59	3.65
3 550	0.63	0.88	1.47	1.98	2.55	3.60
3 600	0.62	0.87	1.45	1.95	2.52	3.55
3 650	0.61	0.86	1.43	1.92	2.48	3.50
3 700	0.60	0.85	1.41	1.90	2.45	3.46
3 750	0.60	0.84	1.39	1.87	2.42	3.41
3 800	0.59	0.83	1.38	1.85	2.38	3.37
3 850	0.58	0.82	1.36	1.82	2.35	3.32
3 900	0.57	0.80	1.34	1.80	2.32	3.28
3 950	0.57	0.79	1.32	1.78	2.29	3.24
4 000	0.56	0.78	1.31	1.75	2.26	3.20
4 050	0.55	0.78	1.29	1.73	2.24	3.16

Table 20 — (Concluded)
(1)	(2)	(3)	(4)	(5)	(6)	(7)
4 100	0.55	0.77	1.27	1.71	2.21	3.12
4 150	0.54	0.76	1.26	1.69	2.18	3.08
4 200	0.53	0.75	1.24	1.67	2.16	3.05
4 250	0.53	0.74	1.23	1.65	2.13	3.01
4 300	0.52	0.73	1.22	1.63	2.11	2.97
4 350	0.51	0.72	1.20	1.61	2.08	2.94
4 400	0.51	0.71	1.19	1.59	2.06	2.91
4 450	0.50	0.71	1.17	1.58	2.04	2.87
4 500	0.50	0.70	1.16	1.56	2.01	2.84
4 550	0.49	0.69	1.15	1.54	1.99	2.81
4 600	0.49	0.68	1.14	1.52	1.97	2.78
4 650	0.48	0.68	1.12	1.51	1.95	2.75
4 700	0.48	0.67	1.11	1.49	1.93	2.72
4 750	0.47	0.66	1.10	1.48	1.91	2.69
4 800	0.47	0.65	1.09	1.46	1.89	2.66
4 850	0.46	0.65	1.08	1.45	1.87	2.64
4 900	0.46	0.64	1.07	1.43	1.85	2.61
4 950	0.45	0.63	1.06	1.42	1.83	2.58
5 000	0.45	0.63	1.05	1.40	1.81	2.56
Maximum aspect ratio	6.5	6.2	5.7	4.8	4.3	3.6

Table 21Maximum Areas for Tempered Glass Fixed on All Four Sides, m^{2} (Clause 6.1.9)

Design Wind Pressure $N/m^2$	Nominal Thickness of Tempered Glass, T mm
Design Wind Pressure $N/m^2$	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	5.32	9.64	15.00	15.00	15.00	15.00	15.00	15.00	15.00
550	4.84	8.76	13.70	15.00	15.00	15.00	15.00	15.00	15.00
600	4.43	8.03	12.56	15.00	15.00	15.00	15.00	15.00	15.00
650	4.09	7.42	11.59	15.00	15.00	15.00	15.00	15.00	15.00
700	3.80	6.89	10.77	15.00	15.00	15.00	15.00	15.00	15.00
750	3.55	6.43	10.05	14.39	15.00	15.00	15.00	15.00	15.00
800	3.33	6.03	9.42	13.49	15.00	15.00	15.00	15.00	15.00
850	3.13	5.67	8.87	12.70	15.00	15.00	15.00	15.00	15.00
900	2.96	5.36	8.37	11.99	15.00	15.00	15.00	15.00	15.00
950	2.80	5.07	7.93	11.36	15.00	15.00	15.00	15.00	15.00
1 000	2.66	4.82	7.54	10.79	15.00	15.00	15.00	15.00	15.00
1 050	2.53	4.59	7.18	10.28	15.00	15.00	15.00	15.00	15.00
1 100	2.42	4.38	6.85	9.81	14.84	15.00	15.00	15.00	15.00
1 150	2.31	4.19	6.55	9.38	14.20	15.00	15.00	15.00	15.00
1 200	2.22	4.02	6.28	8.99	13.61	15.00	15.00	15.00	15.00
1 250	2.13	3.86	6.03	8.63	13.06	15.00	15.00	15.00	15.00
1 300	2.05	3.71	5.80	8.30	12.56	15.00	15.00	15.00	15.00
1 350	1.97	3.57	5.58	7.99	12.10	15.00	15.00	15.00	15.00
1 400	1.90	3.44	5.38	7.71	11.66	15.00	15.00	15.00	15.00
1 450	1.83	3.32	5.20	7.44	11.26	15.00	15.00	15.00	15.00
1 500	1.77	3.21	5.02	7.19	10.89	14.61	15.00	15.00	15.00
1 550	1.72	3.11	4.86	6.96	10.53	14.14	15.00	15.00	15.00
1 600	1.66	3.01	4.71	6.74	10.21	13.69	15.00	15.00	15.00
1 650	1.61	2.92	4.57	6.54	9.90	13.28	15.00	15.00	15.00
1 700	1.56	2.84	4.43	6.35	9.61	12.89	15.00	15.00	15.00
1 750	1.52	2.75	4.31	6.17	9.33	12.52	15.00	15.00	15.00
1 800	1.48	2.68	4.19	6.00	9.07	12.17	15.00	15.00	15.00
1 850	1.44	2.61	4.07	5.83	8.83	11.84	14.95	15.00	15.00
1 900	1.40	2.54	3.97	5.68	8.59	11.53	14.55	15.00	15.00
1 950	1.36	2.47	3.86	5.53	8.37	11.24	14.18	15.00	15.00
2 000	1.33	2.41	3.77	5.40	8.16	10.96	13.83	15.00	15.00
2 050	1.30	2.35	3.68	5.26	7.97	10.69	13.49	15.00	15.00

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 21(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
2 100	1.27	2.30	3.59	5.14	7.78	10.43	13.17	15.00	15.00
2 150	1.24	2.24	3.51	5.02	7.59	10.19	12.86	15.00	15.00
2 200	1.21	2.19	3.43	4.91	7.42	9.96	12.57	15.00	15.00
2 250	1.18	2.14	3.35	4.80	7.26	9.74	12.29	15.00	15.00
2 300	1.16	2.10	3.28	4.69	7.10	9.53	12.02	15.00	15.00
2 350	1.13	2.05	3.21	4.59	6.95	9.32	11.77	15.00	15.00
2 400	1.11	2.01	3.14	4.50	6.80	9.13	11.52	15.00	15.00
2 450	1.09	1.97	3.08	4.40	6.66	8.94	11.29	15.00	15.00
2 500	1.06	1.93	3.01	4.32	6.53	8.76	11.06	15.00	15.00
2 550	1.04	1.89	2.96	4.23	6.40	8.59	10.84	14.80	15.00
2 600	1.02	1.85	2.90	4.15	6.28	8.43	10.64	14.52	15.00
2 650	1.00	1.82	2.84	4.07	6.16	8.27	10.43	14.24	15.00
2 700	0.99	1.79	2.79	4.00	6.05	8.12	10.24	13.98	15.00
2 750	0.97	1.75	2.74	3.92	5.94	7.97	10.06	13.73	15.00
2 800	0.95	1.72	2.69	3.85	5.83	7.83	9.88	13.48	15.00
2 850	0.93	1.69	2.64	3.79	5.73	7.69	9.70	13.24	15.00
2 900	0.92	1.66	2.60	3.72	5.63	7.56	9.54	13.02	15.00
2 950	0.90	1.63	2.55	3.66	5.54	7.43	9.37	12.79	15.00
3 000	0.89	1.61	2.51	3.60	5.44	7.30	9.22	12.58	15.00
3 050	0.87	1.58	2.47	3.54	5.35	7.18	9.07	12.38	15.00
3 100	0.86	1.56	2.43	3.48	5.27	7.07	8.92	12.18	15.00
3 150	0.84	1.53	2.39	3.43	5.18	6.96	8.78	11.98	15.00
3 200	0.83	1.51	2.36	3.37	5.10	6.85	8.64	11.79	15.00
3 250	0.82	1.48	2.32	3.32	5.02	6.74	8.51	11.61	15.00
3 300	0.81	1.46	2.28	3.27	4.95	6.64	8.38	11.44	15.00
3 350	0.79	1.44	2.25	3.22	4.87	6.54	8.25	11.27	15.00
3 400	0.78	1.42	2.22	3.17	4.80	6.44	8.13	11.10	14.87
3 450	0.77	1.40	2.18	3.13	4.73	6.35	8.02	10.94	14.65
3 500	0.76	1.38	2.15	3.08	4.67	6.26	7.90	10.78	14.44
3 550	0.75	1.36	2.12	3.04	4.60	6.17	7.79	10.63	14.24
3 600	0.74	1.34	2.09	3.00	4.54	6.09	7.68	10.48	14.04
3 650	0.73	1.32	2.06	2.96	4.47	6.00	7.58	10.34	13.85
3 700	0.72	1.30	2.04	2.92	4.41	5.92	7.47	10.20	13.66
3 750	0.71	1.29	2.01	2.88	4.35	5.84	7.37	10.07	13.48
3 800	0.70	1.27	1.98	2.84	4.30	5.77	7.28	9.93	13.30
3 850	0.69	1.25	1.96	2.80	4.24	5.69	7.18	9.80	13.13
3 900	0.68	1.24	1.93	2.77	4.19	5.62	7.09	9.68	12.96
3 950	0.67	1.22	1.91	2.73	4.13	5.55	7.00	9.56	12.80
4 000	0.67	1.21	1.88	2.70	4.08	5.48	6.91	9.44	12.64
4 050	0.66	1.19	1.86	2.66	4.03	5.41	6.83	9.32	12.48
4 100	0.65	1.18	1.84	2.63	3.98	5.34	6.74	9.21	12.33
4 150	0.64	1.16	1.82	2.60	3.93	5.28	6.66	9.09	12.18
4 200	0.63	1.15	1.79	2.57	3.89	5.22	6.58	8.99	12.04
4 250	0.63	1.13	1.77	2.54	3.84	5.16	6.51	8.88	11.89
4 300	0.62	1.12	1.75	2.51	3.80	5.10	6.43	8.78	11.76
4 350	0.61	1.11	1.73	2.48	3.75	5.04	6.36	8.68	11.62
4 400	0.60	1.10	1.71	2.45	3.71	4.98	6.28	8.58	11.49
4 450	0.60	1.08	1.69	2.43	3.67	4.92	6.21	8.48	11.36
4 500	0.59	1.07	1.67	2.40	3.63	4.87	6.14	8.39	11.23
4 550	0.58	1.06	1.66	2.37	3.59	4.82	6.08	8.30	11.11
4 600	0.58	1.05	1.64	2.35	3.55	4.76	6.01	8.21	10.99
4 650	0.57	1.04	1.62	2.32	3.51	4.71	5.95	8.12	10.87
4 700	0.57	1.03	1.60	2.30	3.47	4.66	5.88	8.03	10.76
4 750	0.56	1.01	1.59	2.27	3.44	4.61	5.82	7.95	10.64
4 800	0.55	1.00	1.57	2.25	3.40	4.56	5.76	7.86	10.53
4 850	0.55	0.99	1.55	2.23	3.37	4.52	5.70	7.78	10.42
4 900	0.54	0.98	1.54	2.20	3.33	4.47	5.64	7.70	10.32
4 950	0.54	0.97	1.52	2.18	3.30	4.43	5.59	7.63	10.21
5 000	0.53	0.96	1.51	2.16	3.27	4.38	5.53	7.55	10.11
Maximum
aspect ratio	7.3	6.8	6.5	6.3	5.9	4.9	4.3	3.8	3.3

Table 22Maximum Areas for Insulating Glass Fixed on All Four Sides, m² (Clause 6.1.9)

Design Wind Pressure	Nominal Thickness of Insulating Glass, T mm
Design Wind Pressure	N/m2(1)	3+3(2)	4+4(3)	5+5(4)	6+6(5)	8+8(6)	10+10(7)
500	3.19	5.78	9.04	12.95	15.00	15.00	15.00
550	2.90	5.26	8.22	11.77	15.00	15.00	15.00
600	2.66	4.82	7.54	10.79	15.00	15.00	15.00
650	2.46	4.45	6.96	9.96	15.00	15.00	15.00
700	2.28	4.13	6.46	9.25	14.00	15.00	15.00
750	2.13	3.86	6.03	8.63	13.06	15.00	15.00
800	2.00	3.62	5.65	8.09	12.25	15.00	15.00
850	1.88	3.40	5.32	7.62	11.53	15.00	15.00
900	1.77	3.21	5.02	7.19	10.89	14.61	15.00
950	1.68	3.04	4.76	6.82	10.31	13.84	15.00
1 000	1.60	2.89	4.52	6.48	9.80	13.15	15.00
1 050	1.52	2.75	4.31	6.17	9.33	12.52	15.00
1 100	1.45	2.63	4.11	5.89	8.91	11.95	15.00
1 150	1.39	2.52	3.93	5.63	8.52	11.43	14.43
1 200	1.33	2.41	3.77	5.40	8.16	10.96	13.83
1 250	1.28	2.31	3.62	5.18	7.84	10.52	13.27
1 300	1.23	2.22	3.48	4.98	7.54	10.11	12.76
1 350	1.18	2.14	3.35	4.80	7.26	9.74	12.29
1 400	1.14	2.07	3.23	4.63	7.00	9.39	11.85
1 450	1.10	1.99	3.12	4.47	6.76	9.07	11.44
1 500	1.06	1.93	3.01	4.32	6.53	8.76	11.06
1 550	1.03	1.87	2.92	4.18	6.32	8.48	10.70
1 600	1.00	1.81	2.83	4.05	6.12	8.22	10.37
1 650	0.97	1.75	2.74	3.92	5.94	7.97	10.06
1 700	0.94	1.70	2.66	3.81	5.76	7.73	9.76
1 750	0.91	1.65	2.58	3.70	5.60	7.51	9.48
1 800	0.89	1.61	2.51	3.60	5.44	7.30	9.22
1 850	0.86	1.56	2.44	3.50	5.30	7.11	8.97
1 900	0.84	1.52	2.38	3.41	5.16	6.92	8.73
1 950	0.82	1.48	2.32	3.32	5.02	6.74	8.51
2 000	0.80	1.45	2.26	3.24	4.90	6.57	8.30
2 050	0.78	1.41	2.21	3.16	4.78	6.41	8.09
2 100	0.76	1.38	2.15	3.08	4.67	6.26	7.90
2 150	0.74	1.35	2.10	3.01	4.56	6.11	7.72
2 200	0.73	1.31	2.06	2.94	4.45	5.98	7.54
2 250	0.71	1.29	2.01	2.88	4.35	5.84	7.37
2 300	0.69	1.26	1.97	2.82	4.26	5.72	7.21
2 350	0.68	1.23	1.92	2.76	4.17	5.59	7.06
2 400	0.67	1.21	1.88	2.70	4.08	5.48	6.91
2 450	0.65	1.18	1.85	2.64	4.00	5.37	6.77
2 500	0.64	1.16	1.81	2.59	3.92	5.26	6.64
2 550	0.63	1.13	1.77	2.54	3.84	5.16	6.51
2 600	0.61	1.11	1.74	2.49	3.77	5.06	6.38
2 650	0.60	1.09	1.71	2.44	3.70	4.96	6.26
2 700	0.59	1.07	1.67	2.40	3.63	4.87	6.14

Table 22 — (Concluded)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
2 750	0.58	1.05	1.64	2.35	3.56	4.78	6.03
2 800	0.57	1.03	1.61	2.31	3.50	4.70	5.93
2 850	0.56	1.01	1.59	2.27	3.44	4.61	5.82
2 900	0.55	1.00	1.56	2.23	3.38	4.53	5.72
2 950	0.54	0.98	1.53	2.19	3.32	4.46	5.62
3 000	0.53	0.96	1.51	2.16	3.27	4.38	5.53
3 050	0.52	0.95	1.48	2.12	3.21	4.31	5.44
3 100	0.51	0.93	1.46	2.09	3.16	4.24	5.35
3 150	0.51	0.92	1.44	2.06	3.11	4.17	5.27
3 200	0.50	0.90	1.41	2.02	3.06	4.11	5.18
3 250	0.49	0.89	1.39	1.99	3.01	4.05	5.11
3 300	0.48	0.88	1.37	1.96	2.97	3.98	5.03
3 350	0.48	0.86	1.35	1.93	2.92	3.92	4.95
3 400	0.47	0.85	1.33	1.90	2.88	3.87	4.88
3 450	0.46	0.84	1.31	1.88	2.84	3.81	4.81
3 500	0.46	0.83	1.29	1.85	2.80	3.76	4.74
3 550	0.45	0.81	1.27	1.82	2.76	3.70	4.67
3 600	0.44	0.80	1.26	1.80	2.72	3.65	4.61
3 650	0.44	0.79	1.24	1.77	2.68	3.60	4.55
3 700	0.43	0.78	1.22	1.75	2.65	3.55	4.48
3 750	0.43	0.77	1.21	1.73	2.61	3.51	4.42
3 800	0.42	0.76	1.19	1.70	2.58	3.46	4.37
3 850	0.41	0.75	1.17	1.68	2.54	3.41	4.31
3 900	0.41	0.74	1.16	1.66	2.51	3.37	4.25
3 950	0.40	0.73	1.14	1.64	2.48	3.33	4.20
4 000	0.40	0.72	1.13	1.62	2.45	3.29	4.15
4 050	0.39	0.71	1.12	1.60	2.42	3.25	4.10
4 100	0.39	0.71	1.10	1.58	2.39	3.21	4.05
4 150	0.38	0.70	1.09	1.56	2.36	3.17	4.00
4 200	0.38	0.69	1.08	1.54	2.33	3.13	3.95
4 250	0.38	0.68	1.06	1.52	2.31	3.09	3.90
4 300	0.37	0.67	1.05	1.51	2.28	3.06	3.86
4 350	0.37	0.66	1.04	1.49	2.25	3.02	3.81
4 400	0.36	0.66	1.03	1.47	2.23	2.99	3.77
4 450	0.36	0.65	1.02	1.46	2.20	2.95	3.73
4 500	0.35	0.64	1.00	1.44	2.18	2.92	3.69
4 550	0.35	0.64	0.99	1.42	2.15	2.89	3.65
4 600	0.35	0.63	0.98	1.41	2.13	2.86	3.61
4 650	0.34	0.62	0.97	1.39	2.11	2.83	3.57
4 700	0.34	0.62	0.96	1.38	2.08	2.80	3.53
4 750	0.34	0.61	0.95	1.36	2.06	2.77	3.49
4 800	0.33	0.60	0.94	1.35	2.04	2.74	3.46
4 850	0.33	0.60	0.93	1.34	2.02	2.71	3.42
4 900	0.33	0.59	0.92	1.32	2.00	2.68	3.39
4 950	0.32	0.58	0.91	1.31	1.98	2.66	3.35
5 000	0.32	0.58	0.90	1.30	1.96	2.63	3.32
Maximum
aspect ratio	7.3	6.8	6.5	6.3	5.9	4.9	4.3

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 23Maximum Area for Heat Strengthened Glass Fixed on Four Sides, m^{2} (Clause 6.1.9)

Design Wind Pressure $N/m^2$ (1)	Nominal Thickness of Heat Strengthened Glass, Tmm
Design Wind Pressure $N/m^2$ (1)	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	3.41	6.17	9.65	13.81	15.00	15.00	15.00	15.00	15.00
550	3.10	5.61	8.77	12.56	15.00	15.00	15.00	15.00	15.00
600	2.84	5.14	8.04	11.51	15.00	15.00	15.00	15.00	15.00
650	2.62	4.75	7.42	10.63	15.00	15.00	15.00	15.00	15.00
700	2.43	4.41	6.89	9.87	14.93	15.00	15.00	15.00	15.00
750	2.27	4.11	6.43	9.21	13.93	15.00	15.00	15.00	15.00
800	2.13	3.86	6.03	8.63	13.06	15.00	15.00	15.00	15.00
850	2.00	3.63	5.67	8.13	12.29	15.00	15.00	15.00	15.00
900	1.89	3.43	5.36	7.67	11.61	15.00	15.00	15.00	15.00
950	1.79	3.25	5.08	7.27	11.00	14.76	15.00	15.00	15.00
1 000	1.70	3.09	4.82	6.91	10.45	14.02	15.00	15.00	15.00
1 050	1.62	2.94	4.59	6.58	9.95	13.36	15.00	15.00	15.00
1 100	1.55	2.80	4.38	6.28	9.50	12.75	15.00	15.00	15.00
1 150	1.48	2.68	4.19	6.01	9.09	12.19	15.00	15.00	15.00
1 200	1.42	2.57	4.02	5.76	8.71	11.69	14.75	15.00	15.00
1 250	1.36	2.47	3.86	5.53	8.36	11.22	14.16	15.00	15.00
1 300	1.31	2.37	3.71	5.31	8.04	10.79	13.61	15.00	15.00
1 350	1.26	2.29	3.57	5.12	7.74	10.39	13.11	15.00	15.00
1 400	1.22	2.20	3.45	4.93	7.46	10.02	12.64	15.00	15.00
1 450	1.17	2.13	3.33	4.76	7.21	9.67	12.21	15.00	15.00
1 500	1.14	2.06	3.22	4.60	6.97	9.35	11.80	15.00	15.00
1 550	1.10	1.99	3.11	4.46	6.74	9.05	11.42	15.00	15.00
1 600	1.06	1.93	3.01	4.32	6.53	8.76	11.06	15.00	15.00
1 650	1.03	1.87	2.92	4.19	6.33	8.50	10.73	14.64	15.00
1 700	1.00	1.81	2.84	4.06	6.15	8.25	10.41	14.21	15.00
1 750	0.97	1.76	2.76	3.95	5.97	8.01	10.11	13.80	15.00
1 800	0.95	1.71	2.68	3.84	5.81	7.79	9.83	13.42	15.00
1 850	0.92	1.67	2.61	3.73	5.65	7.58	9.57	13.06	15.00
1 900	0.90	1.62	2.54	3.64	5.50	7.38	9.31	12.71	15.00
1 950	0.87	1.58	2.47	3.54	5.36	7.19	9.08	12.39	15.00
2 000	0.85	1.54	2.41	3.45	5.23	7.01	8.85	12.08	15.00
2 050	0.83	1.50	2.35	3.37	5.10	6.84	8.63	11.78	15.00
2 100	0.81	1.47	2.30	3.29	4.98	6.68	8.43	11.50	15.00
2 150	0.79	1.43	2.24	3.21	4.86	6.52	8.23	11.24	15.00
2 200	0.77	1.40	2.19	3.14	4.75	6.37	8.04	10.98	14.71
2 250	0.76	1.37	2.14	3.07	4.64	6.23	7.87	10.74	14.38
2 300	0.74	1.34	2.10	3.00	4.54	6.10	7.69	10.50	14.07
2 350	0.72	1.31	2.05	2.94	4.45	5.97	7.53	10.28	13.77
2 400	0.71	1.29	2.01	2.88	4.35	5.84	7.37	10.07	13.48
2 450	0.69	1.26	1.97	2.82	4.27	5.72	7.22	9.86	13.21
2 500	0.68	1.23	1.93	2.76	4.18	5.61	7.08	9.66	12.94
2 550	0.67	1.21	1.89	2.71	4.10	5.50	6.94	9.47	12.69
2 600	0.65	1.19	1.86	2.66	4.02	5.39	6.81	9.29	12.44
2 650	0.64	1.16	1.82	2.61	3.94	5.29	6.68	9.12	12.21
2 700	0.63	1.14	1.79	2.56	3.87	5.19	6.55	8.95	11.98
2 750	0.62	1.12	1.75	2.51	3.80	5.10	6.44	8.78	11.76
2 800	0.61	1.10	1.72	2.47	3.73	5.01	6.32	8.63	11.55
2 850	0.60	1.08	1.69	2.42	3.67	4.92	6.21	8.48	11.35
2 900	0.59	1.06	1.66	2.38	3.60	4.84	6.10	8.33	11.16
2 950	0.58	1.05	1.63	2.34	3.54	4.75	6.00	8.19	10.97
3 000	0.57	1.03	1.61	2.30	3.48	4.67	5.90	8.05	10.78
3 050	0.56	1.01	1.58	2.26	3.43	4.60	5.80	7.92	10.61
3 100	0.55	1.00	1.56	2.23	3.37	4.52	5.71	7.79	10.44
3 150	0.54	0.98	1.53	2.19	3.32	4.45	5.62	7.67	10.27
3 200	0.53	0.96	1.51	2.16	3.27	4.38	5.53	7.55	10.11
3 250	0.52	0.95	1.48	2.13	3.22	4.31	5.45	7.43	9.95
3 300	0.52	0.93	1.46	2.09	3.17	4.25	5.36	7.32	9.80
3 350	0.51	0.92	1.44	2.06	3.12	4.19	5.28	7.21	9.66
3 400	0.50	0.91	1.42	2.03	3.07	4.12	5.21	7.10	9.52
3 450	0.49	0.89	1.40	2.00	3.03	4.06	5.13	7.00	9.38

Table 23(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
3 500	0.49	0.88	1.38	1.97	2.99	4.01	5.06	6.90	9.24
3 550	0.48	0.87	1.36	1.95	2.94	3.95	4.99	6.80	9.11
3 600	0.47	0.86	1.34	1.92	2.90	3.90	4.92	6.71	8.99
3 650	0.47	0.85	1.32	1.89	2.86	3.84	4.85	6.62	8.86
3 700	0.46	0.83	1.30	1.87	2.82	3.79	4.78	6.53	8.74
3 750	0.45	0.82	1.29	1.84	2.79	3.74	4.72	6.44	8.63
3 800	0.45	0.81	1.27	1.82	2.75	3.69	4.66	6.36	8.51
3 850	0.44	0.80	1.25	1.79	2.71	3.64	4.60	6.27	8.40
3 900	0.44	0.79	1.24	1.77	2.68	3.60	4.54	6.19	8.30
3 950	0.43	0.78	1.22	1.75	2.65	3.55	4.48	6.12	8.19
4 000	0.43	0.77	1.21	1.73	2.61	3.51	4.42	6.04	8.09
4 050	0.42	0.76	1.19	1.71	2.58	3.46	4.37	5.96	7.99
4 100	0.42	0.75	1.18	1.68	2.55	3.42	4.32	5.89	7.89
4 150	0.41	0.74	1.16	1.66	2.52	3.38	4.26	5.82	7.80
4 200	0.41	0.73	1.15	1.64	2.49	3.34	4.21	5.75	7.70
4 250	0.40	0.73	1.13	1.63	2.46	3.30	4.16	5.68	7.61
4 300	0.40	0.72	1.12	1.61	2.43	3.26	4.12	5.62	7.52
4 350	0.39	0.71	1.11	1.59	2.40	3.22	4.07	5.55	7.44
4 400	0.39	0.70	1.10	1.57	2.38	3.19	4.02	5.49	7.35
4 450	0.38	0.69	1.08	1.55	2.35	3.15	3.98	5.43	7.27
4 500	0.38	0.69	1.07	1.53	2.32	3.12	3.93	5.37	7.19
4 550	0.37	0.68	1.06	1.52	2.30	3.08	3.89	5.31	7.11
4 600	0.37	0.67	1.05	1.50	2.27	3.05	3.85	5.25	7.03
4 650	0.37	0.66	1.04	1.49	2.25	3.02	3.81	5.19	6.96
4 700	0.36	0.66	1.03	1.47	2.22	2.98	3.77	5.14	6.88
4 750	0.36	0.65	1.02	1.45	2.20	2.95	3.73	5.09	6.81
4 800	0.35	0.64	1.00	1.44	2.18	2.92	3.69	5.03	6.74
4 850	0.35	0.64	0.99	1.42	2.15	2.89	3.65	4.98	6.67
4 900	0.35	0.63	0.98	1.41	2.13	2.86	3.61	4.93	6.60
4 950	0.34	0.62	0.97	1.40	2.11	2.83	3.58	4.88	6.54
5 000	0.34	0.62	0.96	1.38	2.09	2.80	3.54	4.83	6.47
Maximum aspect ratio	7.3	6.8	6.5	6.3	5.9	4.9	4.3	3.8	3.3

Table 24Maximum Span for Annealed Glass Fixed on Two Opposite Sides, m (Clause 6.1.9)

Design Wind Pressure $N/m^2$ (1)	Nominal Thickness of Annealed Glass, Tmm
Design Wind Pressure $N/m^2$ (1)	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	0.53	0.73	0.92	1.12	1.40	1.77	2.11	2.68	3.36
550	0.51	0.69	0.88	1.07	1.33	1.69	2.02	2.56	3.20
600	0.48	0.66	0.84	1.02	1.27	1.62	1.93	2.45	3.07
650	0.46	0.64	0.81	0.98	1.22	1.56	1.85	2.35	2.95
700	0.45	0.61	0.78	0.95	1.18	1.50	1.79	2.26	2.84
750	0.43	0.59	0.75	0.91	1.14	1.45	1.73	2.19	2.74
800	0.42	0.57	0.73	0.88	1.10	1.40	1.67	2.12	2.66
850	0.41	0.56	0.71	0.86	1.07	1.36	1.62	2.06	2.58
900	0.40	0.54	0.69	0.83	1.04	1.32	1.58	2.00	2.50
950	0.38	0.53	0.67	0.81	1.01	1.29	1.53	1.94	2.44
1 000	0.37	0.51	0.65	0.79	0.99	1.25	1.49	1.89	2.38
1 050	0.37	0.50	0.64	0.77	0.96	1.22	1.46	1.85	2.32
1 100	0.36	0.49	0.62	0.75	0.94	1.20	1.43	1.81	2.26
1 150	0.35	0.48	0.61	0.74	0.92	1.17	1.39	1.77	2.22
1 200	0.34	0.47	0.60	0.72	0.90	1.15	1.36	1.73	2.17
1 250	0.34	0.46	0.58	0.71	0.88	1.12	1.34	1.69	2.12
1 300	0.33	0.45	0.57	0.69	0.87	1.10	1.31	1.66	2.08
1 350	0.32	0.44	0.56	0.68	0.85	1.08	1.29	1.63	2.04
1 400	0.32	0.43	0.55	0.67	0.83	1.06	1.26	1.60	2.01
1 450	0.31	0.43	0.54	0.66	0.82	1.04	1.24	1.57	1.97
1 500	0.31	0.42	0.53	0.65	0.81	1.02	1.22	1.55	1.94
1 550	0.30	0.41	0.52	0.64	0.79	1.01	1.20	1.52	1.91
1 600	0.30	0.41	0.52	0.63	0.78	0.99	1.18	1.50	1.88

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 24(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
1 650	0.29	0.40	0.51	0.62	0.77	0.98	1.16	1.48	1.85
1 700	0.29	0.39	0.50	0.61	0.76	0.96	1.15	1.45	1.82
1 750	0.28	0.39	0.49	0.60	0.75	0.95	1.13	1.43	1.80
1 800	0.28	0.38	0.49	0.59	0.74	0.93	1.11	1.41	1.77
1 850	0.28	0.38	0.48	0.58	0.73	0.92	1.10	1.39	1.75
1 900	0.27	0.37	0.47	0.57	0.72	0.91	1.08	1.37	1.72
1 950	0.27	0.37	0.47	0.57	0.71	0.90	1.07	1.36	1.70
2 000	0.27	0.36	0.46	0.56	0.70	0.89	1.06	1.34	1.68
2 050	0.26	0.36	0.46	0.55	0.69	0.88	1.04	1.32	1.66
2 100	0.26	0.35	0.45	0.55	0.68	0.87	1.03	1.31	1.64
2 150	0.26	0.35	0.44	0.54	0.67	0.86	1.02	1.29	1.62
2 200	0.25	0.35	0.44	0.53	0.67	0.85	1.01	1.28	1.60
2 250	0.25	0.34	0.43	0.53	0.66	0.84	1.00	1.26	1.58
2 300	0.25	0.34	0.43	0.52	0.65	0.83	0.99	1.25	1.57
2 350	0.24	0.34	0.43	0.52	0.64	0.82	0.97	1.24	1.55
2 400	0.24	0.33	0.42	0.51	0.64	0.81	0.96	1.22	1.53
2 450	0.24	0.33	0.42	0.51	0.63	0.80	0.95	1.21	1.52
2 500	0.24	0.32	0.41	0.50	0.62	0.79	0.95	1.20	1.50
2 550	0.23	0.32	0.41	0.50	0.62	0.79	0.94	1.19	1.49
2 600	0.23	0.32	0.40	0.49	0.61	0.78	0.93	1.18	1.47
2 650	0.23	0.32	0.40	0.49	0.61	0.77	0.92	1.16	1.46
2 700	0.23	0.31	0.40	0.48	0.60	0.76	0.91	1.15	1.45
2 750	0.23	0.31	0.39	0.48	0.60	0.76	0.90	1.14	1.43
2 800	0.22	0.31	0.39	0.47	0.59	0.75	0.89	1.13	1.42
2 850	0.22	0.30	0.39	0.47	0.58	0.74	0.89	1.12	1.41
2 900	0.22	0.30	0.38	0.46	0.58	0.74	0.88	1.11	1.39
2 950	0.22	0.30	0.38	0.46	0.57	0.73	0.87	1.10	1.38
3 000	0.22	0.30	0.38	0.46	0.57	0.72	0.86	1.09	1.37
3 050	0.21	0.29	0.37	0.45	0.57	0.72	0.86	1.09	1.36
3 100	0.21	0.29	0.37	0.45	0.56	0.71	0.85	1.08	1.35
3 150	0.21	0.29	0.37	0.45	0.56	0.71	0.84	1.07	1.34
3 200	0.21	0.29	0.36	0.44	0.55	0.70	0.84	1.06	1.33
3 250	0.21	0.28	0.36	0.44	0.55	0.70	0.83	1.05	1.32
3 300	0.21	0.28	0.36	0.44	0.54	0.69	0.82	1.04	1.31
3 350	0.20	0.28	0.36	0.43	0.54	0.69	0.82	1.04	1.30
3 400	0.20	0.28	0.35	0.43	0.54	0.68	0.81	1.03	1.29
3 450	0.20	0.28	0.35	0.43	0.53	0.68	0.80	1.02	1.28
3 500	0.20	0.27	0.35	0.42	0.53	0.67	0.80	1.01	1.27
3 550	0.20	0.27	0.35	0.42	0.52	0.67	0.79	1.01	1.26
3 600	0.20	0.27	0.34	0.42	0.52	0.66	0.79	1.00	1.25
3 650	0.20	0.27	0.34	0.41	0.52	0.66	0.78	0.99	1.24
3 700	0.19	0.27	0.34	0.41	0.51	0.65	0.78	0.99	1.23
3 750	0.19	0.27	0.34	0.41	0.51	0.65	0.77	0.98	1.23
3 800	0.19	0.26	0.33	0.41	0.51	0.64	0.77	0.97	1.22
3 850	0.19	0.26	0.33	0.40	0.50	0.64	0.76	0.97	1.21
3 900	0.19	0.26	0.33	0.40	0.50	0.64	0.76	0.96	1.20
3 950	0.19	0.26	0.33	0.40	0.50	0.63	0.75	0.95	1.20
4 000	0.19	0.26	0.33	0.40	0.49	0.63	0.75	0.95	1.19
4 050	0.19	0.26	0.32	0.39	0.49	0.62	0.74	0.94	1.18
4 100	0.19	0.25	0.32	0.39	0.49	0.62	0.74	0.94	1.17
4 150	0.18	0.25	0.32	0.39	0.48	0.62	0.73	0.93	1.17
4 200	0.18	0.25	0.32	0.39	0.48	0.61	0.73	0.92	1.16
4 250	0.18	0.25	0.32	0.38	0.48	0.61	0.72	0.92	1.15
4 300	0.18	0.25	0.31	0.38	0.48	0.60	0.72	0.91	1.15
4 350	0.18	0.25	0.31	0.38	0.47	0.60	0.72	0.91	1.14
4 400	0.18	0.24	0.31	0.38	0.47	0.60	0.71	0.90	1.13
4 450	0.18	0.24	0.31	0.38	0.47	0.59	0.71	0.90	1.13
4 500	0.18	0.24	0.31	0.37	0.47	0.59	0.70	0.89	1.12
4 550	0.18	0.24	0.31	0.37	0.46	0.59	0.70	0.89	1.11
4 600	0.17	0.24	0.30	0.37	0.46	0.58	0.70	0.88	1.11
4 650	0.17	0.24	0.30	0.37	0.46	0.58	0.69	0.88	1.10
4 700	0.17	0.24	0.30	0.36	0.46	0.58	0.69	0.87	1.10
4 750	0.17	0.24	0.30	0.36	0.45	0.58	0.69	0.87	1.09
4 800	0.17	0.23	0.30	0.36	0.45	0.57	0.68	0.86	1.08
4 850	0.17	0.23	0.30	0.36	0.45	0.57	0.68	0.86	1.08
4 900	0.17	0.23	0.29	0.36	0.45	0.57	0.68	0.86	1.07
4 950	0.17	0.23	0.29	0.36	0.44	0.56	0.67	0.85	1.07
5 000	0.17	0.23	0.29	0.35	0.44	0.56	0.67	0.85	1.06

Table 25Maximum Span for Laminated Glass Fixed on Two Opposite Sides, m (Clause 6.1.9)

Design Wind Pressure $N/m^2$ (1)	Nominal Thickness of Laminated Glass, T mm
Design Wind Pressure $N/m^2$ (1)	5.38(2)	6.38(3)	8.38(4)	10.38(5)	12.38(6)	16.38(7)
500	0.79	0.95	1.25	1.59	1.92	2.50
550	0.75	0.90	1.19	1.51	1.83	2.38
600	0.72	0.87	1.14	1.45	1.76	2.28
650	0.69	0.83	1.10	1.39	1.69	2.19
700	0.67	0.80	1.06	1.34	1.63	2.11
750	0.65	0.77	1.02	1.30	1.57	2.04
800	0.62	0.75	0.99	1.25	1.52	1.98
850	0.61	0.73	0.96	1.22	1.48	1.92
900	0.59	0.71	0.93	1.18	1.43	1.86
950	0.57	0.69	0.91	1.15	1.40	1.81
1 000	0.56	0.67	0.88	1.12	1.36	1.77
1 050	0.55	0.65	0.86	1.09	1.33	1.72
1 100	0.53	0.64	0.84	1.07	1.30	1.68
1 150	0.52	0.63	0.82	1.05	1.27	1.65
1 200	0.51	0.61	0.81	1.02	1.24	1.61
1 250	0.50	0.60	0.79	1.00	1.22	1.58
1 300	0.49	0.59	0.77	0.98	1.19	1.55
1 350	0.48	0.58	0.76	0.97	1.17	1.52
1 400	0.47	0.57	0.75	0.95	1.15	1.49
1 450	0.46	0.56	0.73	0.93	1.13	1.47
1 500	0.46	0.55	0.72	0.92	1.11	1.44
1 550	0.45	0.54	0.71	0.90	1.09	1.42
1 600	0.44	0.53	0.70	0.89	1.08	1.40
1 650	0.43	0.52	0.69	0.87	1.06	1.38
1 700	0.43	0.51	0.68	0.86	1.04	1.35
1 750	0.42	0.51	0.67	0.85	1.03	1.34
1 800	0.42	0.50	0.66	0.84	1.01	1.32
1 850	0.41	0.49	0.65	0.82	1.00	1.30
1 900	0.41	0.49	0.64	0.81	0.99	1.28
1 950	0.40	0.48	0.63	0.80	0.97	1.27
2 000	0.40	0.47	0.62	0.79	0.96	1.25
2 050	0.39	0.47	0.62	0.78	0.95	1.23
2 100	0.39	0.46	0.61	0.77	0.94	1.22
2 150	0.38	0.46	0.60	0.77	0.93	1.20
2 200	0.38	0.45	0.60	0.76	0.92	1.19
2 250	0.37	0.45	0.59	0.75	0.91	1.18
2 300	0.37	0.44	0.58	0.74	0.90	1.16
2 350	0.36	0.44	0.58	0.73	0.89	1.15
2 400	0.36	0.43	0.57	0.72	0.88	1.14
2 450	0.36	0.43	0.56	0.72	0.87	1.13
2 500	0.35	0.42	0.56	0.71	0.86	1.12
2 550	0.35	0.42	0.55	0.70	0.85	1.11
2 600	0.35	0.42	0.55	0.70	0.84	1.10

Table 25 — (Concluded)
(1)	(2)	(3)	(4)	(5)	(6)	(7)
2 650	0.34	0.41	0.54	0.69	0.84	1.09
2 700	0.34	0.41	0.54	0.68	0.83	1.08
2 750	0.34	0.40	0.53	0.68	0.82	1.07
2 800	0.33	0.40	0.53	0.67	0.81	1.06
2 850	0.33	0.40	0.52	0.66	0.81	1.05
2 900	0.33	0.39	0.52	0.66	0.80	1.04
2 950	0.33	0.39	0.51	0.65	0.79	1.03
3 000	0.32	0.39	0.51	0.65	0.79	1.02
3 050	0.32	0.38	0.51	0.64	0.78	1.01
3 100	0.32	0.38	0.50	0.64	0.77	1.00
3 150	0.31	0.38	0.50	0.63	0.77	1.00
3 200	0.31	0.37	0.49	0.63	0.76	0.99
3 250	0.31	0.37	0.49	0.62	0.75	0.98
3 300	0.31	0.37	0.49	0.62	0.75	0.97
3 350	0.31	0.37	0.48	0.61	0.74	0.97
3 400	0.30	0.36	0.48	0.61	0.74	0.96
3 450	0.30	0.36	0.48	0.60	0.73	0.95
3 500	0.30	0.36	0.47	0.60	0.73	0.94
3 550	0.30	0.36	0.47	0.60	0.72	0.94
3 600	0.29	0.35	0.47	0.59	0.72	0.93
3 650	0.29	0.35	0.46	0.59	0.71	0.92
3 700	0.29	0.35	0.46	0.58	0.71	0.92
3 750	0.29	0.35	0.46	0.58	0.70	0.91
3 800	0.29	0.34	0.45	0.58	0.70	0.91
3 850	0.28	0.34	0.45	0.57	0.69	0.90
3 900	0.28	0.34	0.45	0.57	0.69	0.89
3 950	0.28	0.34	0.44	0.56	0.68	0.89
4 000	0.28	0.34	0.44	0.56	0.68	0.88
4 050	0.28	0.33	0.44	0.56	0.68	0.88
4 100	0.28	0.33	0.44	0.55	0.67	0.87
4 150	0.27	0.33	0.43	0.55	0.67	0.87
4 200	0.27	0.33	0.43	0.55	0.66	0.86
4 250	0.27	0.33	0.43	0.54	0.66	0.86
4 300	0.27	0.32	0.43	0.54	0.66	0.85
4 350	0.27	0.32	0.42	0.54	0.65	0.85
4 400	0.27	0.32	0.42	0.53	0.65	0.84
4 450	0.26	0.32	0.42	0.53	0.65	0.84
4 500	0.26	0.32	0.42	0.53	0.64	0.83
4 550	0.26	0.31	0.41	0.53	0.64	0.83
4 600	0.26	0.31	0.41	0.52	0.63	0.82
4 650	0.26	0.31	0.41	0.52	0.63	0.82
4 700	0.26	0.31	0.41	0.52	0.63	0.81
4 750	0.26	0.31	0.41	0.51	0.62	0.81
4 800	0.26	0.31	0.40	0.51	0.62	0.81
4 850	0.25	0.30	0.40	0.51	0.62	0.80
4 900	0.25	0.30	0.40	0.51	0.61	0.80
4 950	0.25	0.30	0.40	0.50	0.61	0.79
5 000	0.25	0.30	0.40	0.50	0.61	0.79

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 26Maximum Span for Tempered Glass Fixed on Two Opposite Sides, m (Clause 6.1.9)

Design Wind Pressure $N/m^2$ (1)	Nominal Thickness of Tempered Glass, Tmm
Design Wind Pressure $N/m^2$ (1)	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	0.62	0.86	1.09	1.32	1.52	1.93	2.30	2.92	3.66
550	0.60	0.82	1.04	1.26	1.45	1.84	2.20	2.78	3.49
600	0.57	0.78	0.99	1.20	1.39	1.76	2.10	2.66	3.34
650	0.55	0.75	0.95	1.16	1.33	1.69	2.02	2.56	3.21
700	0.53	0.72	0.92	1.11	1.29	1.63	1.95	2.47	3.09
750	0.51	0.70	0.89	1.08	1.24	1.58	1.88	2.38	2.99
800	0.49	0.68	0.86	1.04	1.20	1.53	1.82	2.31	2.89
850	0.48	0.66	0.83	1.01	1.17	1.48	1.77	2.24	2.81
900	0.47	0.64	0.81	0.98	1.13	1.44	1.72	2.18	2.73
950	0.45	0.62	0.79	0.96	1.10	1.40	1.67	2.12	2.65
1 000	0.44	0.60	0.77	0.93	1.08	1.37	1.63	2.06	2.59
1 050	0.43	0.59	0.75	0.91	1.05	1.33	1.59	2.01	2.52
1 100	0.42	0.58	0.73	0.89	1.03	1.30	1.55	1.97	2.47
1 150	0.41	0.56	0.72	0.87	1.00	1.27	1.52	1.92	2.41
1 200	0.40	0.55	0.70	0.85	0.98	1.25	1.49	1.88	2.36
1 250	0.39	0.54	0.69	0.83	0.96	1.22	1.46	1.85	2.31
1 300	0.39	0.53	0.67	0.82	0.94	1.20	1.43	1.81	2.27
1 350	0.38	0.52	0.66	0.80	0.93	1.18	1.40	1.78	2.23
1 400	0.37	0.51	0.65	0.79	0.91	1.15	1.38	1.74	2.19
1 450	0.37	0.50	0.64	0.77	0.89	1.13	1.35	1.71	2.15
1 500	0.36	0.49	0.63	0.76	0.88	1.12	1.33	1.69	2.11
1 550	0.35	0.49	0.62	0.75	0.86	1.10	1.31	1.66	2.08
1 600	0.35	0.48	0.61	0.74	0.85	1.08	1.29	1.63	2.05
1 650	0.34	0.47	0.60	0.73	0.84	1.06	1.27	1.61	2.01
1 700	0.34	0.46	0.59	0.71	0.82	1.05	1.25	1.58	1.98
1 750	0.33	0.46	0.58	0.70	0.81	1.03	1.23	1.56	1.96
1 800	0.33	0.45	0.57	0.69	0.80	1.02	1.21	1.54	1.93
1 850	0.32	0.44	0.56	0.68	0.79	1.00	1.20	1.52	1.90
1 900	0.32	0.44	0.56	0.68	0.78	0.99	1.18	1.50	1.88
1 950	0.32	0.43	0.55	0.67	0.77	0.98	1.17	1.48	1.85
2 000	0.31	0.43	0.54	0.66	0.76	0.97	1.15	1.46	1.83
2 050	0.31	0.42	0.54	0.65	0.75	0.95	1.14	1.44	1.81
2 100	0.30	0.42	0.53	0.64	0.74	0.94	1.12	1.42	1.79
2 150	0.30	0.41	0.52	0.64	0.73	0.93	1.11	1.41	1.76
2 200	0.30	0.41	0.52	0.63	0.73	0.92	1.10	1.39	1.74
2 250	0.29	0.40	0.51	0.62	0.72	0.91	1.09	1.38	1.72
2 300	0.29	0.40	0.51	0.61	0.71	0.90	1.07	1.36	1.71
2 350	0.29	0.39	0.50	0.61	0.70	0.89	1.06	1.35	1.69
2 400	0.28	0.39	0.50	0.60	0.69	0.88	1.05	1.33	1.67
2 450	0.28	0.39	0.49	0.60	0.69	0.87	1.04	1.32	1.65
2 500	0.28	0.38	0.49	0.59	0.68	0.86	1.03	1.31	1.64
2 550	0.28	0.38	0.48	0.58	0.67	0.86	1.02	1.29	1.62
2 600	0.27	0.38	0.48	0.58	0.67	0.85	1.01	1.28	1.60
2 650	0.27	0.37	0.47	0.57	0.66	0.84	1.00	1.27	1.59
2 700	0.27	0.37	0.47	0.57	0.65	0.83	0.99	1.26	1.57
2 750	0.27	0.36	0.46	0.56	0.65	0.82	0.98	1.24	1.56
2 800	0.26	0.36	0.46	0.56	0.64	0.82	0.97	1.23	1.55
2 850	0.26	0.36	0.46	0.55	0.64	0.81	0.96	1.22	1.53
2 900	0.26	0.36	0.45	0.55	0.63	0.80	0.96	1.21	1.52
2 950	0.26	0.35	0.45	0.54	0.63	0.80	0.95	1.20	1.51
3 000	0.25	0.35	0.44	0.54	0.62	0.79	0.94	1.19	1.49
3 050	0.25	0.35	0.44	0.53	0.62	0.78	0.93	1.18	1.48
3 100	0.25	0.34	0.44	0.53	0.61	0.78	0.92	1.17	1.47
3 150	0.25	0.34	0.43	0.52	0.61	0.77	0.92	1.16	1.46
3 200	0.25	0.34	0.43	0.52	0.60	0.76	0.91	1.15	1.45
3 250	0.24	0.34	0.43	0.52	0.60	0.76	0.90	1.14	1.44
3 300	0.24	0.33	0.42	0.51	0.59	0.75	0.90	1.14	1.42
3 350	0.24	0.33	0.42	0.51	0.59	0.75	0.89	1.13	1.41
3 400	0.24	0.33	0.42	0.51	0.58	0.74	0.88	1.12	1.40
3 450	0.24	0.33	0.41	0.50	0.58	0.74	0.88	1.11	1.39
3 500	0.24	0.32	0.41	0.50	0.57	0.73	0.87	1.10	1.38

Table 26(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
3 550	0.23	0.32	0.41	0.49	0.57	0.73	0.86	1.10	1.37
3 600	0.23	0.32	0.40	0.49	0.57	0.72	0.86	1.09	1.36
3 650	0.23	0.32	0.40	0.49	0.56	0.72	0.85	1.08	1.35
3 700	0.23	0.31	0.40	0.48	0.56	0.71	0.85	1.07	1.34
3 750	0.23	0.31	0.40	0.48	0.56	0.71	0.84	1.07	1.34
3 800	0.23	0.31	0.39	0.48	0.55	0.70	0.84	1.06	1.33
3 850	0.22	0.31	0.39	0.47	0.55	0.70	0.83	1.05	1.32
3 900	0.22	0.31	0.39	0.47	0.54	0.69	0.82	1.05	1.31
3 950	0.22	0.30	0.39	0.47	0.54	0.69	0.82	1.04	1.30
4 000	0.22	0.30	0.38	0.47	0.54	0.68	0.81	1.03	1.29
4 050	0.22	0.30	0.38	0.46	0.53	0.68	0.81	1.03	1.29
4 100	0.22	0.30	0.38	0.46	0.53	0.67	0.80	1.02	1.28
4 150	0.22	0.30	0.38	0.46	0.53	0.67	0.80	1.01	1.27
4 200	0.22	0.30	0.37	0.45	0.52	0.67	0.79	1.01	1.26
4 250	0.21	0.29	0.37	0.45	0.52	0.66	0.79	1.00	1.25
4 300	0.21	0.29	0.37	0.45	0.52	0.66	0.79	1.00	1.25
4 350	0.21	0.29	0.37	0.45	0.52	0.66	0.78	0.99	1.24
4 400	0.21	0.29	0.37	0.44	0.51	0.65	0.78	0.98	1.23
4 450	0.21	0.29	0.36	0.44	0.51	0.65	0.77	0.98	1.23
4 500	0.21	0.29	0.36	0.44	0.51	0.64	0.77	0.97	1.22
4 550	0.21	0.28	0.36	0.44	0.50	0.64	0.76	0.97	1.21
4 600	0.21	0.28	0.36	0.43	0.50	0.64	0.76	0.96	1.21
4 650	0.20	0.28	0.36	0.43	0.50	0.63	0.75	0.96	1.20
4 700	0.20	0.28	0.35	0.43	0.50	0.63	0.75	0.95	1.19
4 750	0.20	0.28	0.35	0.43	0.49	0.63	0.75	0.95	1.19
4 800	0.20	0.28	0.35	0.43	0.49	0.62	0.74	0.94	1.18
4 850	0.20	0.27	0.35	0.42	0.49	0.62	0.74	0.94	1.17
4 900	0.20	0.27	0.35	0.42	0.49	0.62	0.74	0.93	1.17
4 950	0.20	0.27	0.35	0.42	0.48	0.61	0.73	0.93	1.16
5 000	0.20	0.27	0.34	0.42	0.48	0.61	0.73	0.92	1.16

Table 27Maximum Span for Heat Strengthened Glass Fixed on Two Opposite Sides, m (Clause 6.1.9)

Design Wind Pressure $N/m^2$ (1)	Nominal Thickness of Heat Strengthened Glass, T mm
Design Wind Pressure $N/m^2$ (1)	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	0.50	0.68	0.87	1.05	1.22	1.55	1.84	2.34	2.93
550	0.48	0.65	0.83	1.00	1.16	1.47	1.76	2.23	2.79
600	0.46	0.62	0.79	0.96	1.11	1.41	1.68	2.13	2.67
650	0.44	0.60	0.76	0.92	1.07	1.36	1.62	2.05	2.57
700	0.42	0.58	0.73	0.89	1.03	1.31	1.56	1.97	2.47
750	0.41	0.56	0.71	0.86	0.99	1.26	1.50	1.91	2.39
800	0.39	0.54	0.69	0.83	0.96	1.22	1.46	1.85	2.31
850	0.38	0.52	0.67	0.81	0.93	1.19	1.41	1.79	2.24
900	0.37	0.51	0.65	0.79	0.91	1.15	1.37	1.74	2.18
950	0.36	0.50	0.63	0.76	0.88	1.12	1.34	1.69	2.12
1 000	0.35	0.48	0.61	0.75	0.86	1.09	1.30	1.65	2.07
1 050	0.34	0.47	0.60	0.73	0.84	1.07	1.27	1.61	2.02
1 100	0.34	0.46	0.59	0.71	0.82	1.04	1.24	1.57	1.97
1 150	0.33	0.45	0.57	0.69	0.80	1.02	1.21	1.54	1.93
1 200	0.32	0.44	0.56	0.68	0.79	1.00	1.19	1.51	1.89
1 250	0.32	0.43	0.55	0.67	0.77	0.98	1.16	1.48	1.85
1 300	0.31	0.42	0.54	0.65	0.75	0.96	1.14	1.45	1.82
1 350	0.30	0.42	0.53	0.64	0.74	0.94	1.12	1.42	1.78
1 400	0.30	0.41	0.52	0.63	0.73	0.92	1.10	1.40	1.75
1 450	0.29	0.40	0.51	0.62	0.71	0.91	1.08	1.37	1.72
1 500	0.29	0.40	0.50	0.61	0.70	0.89	1.06	1.35	1.69
1 550	0.28	0.39	0.49	0.60	0.69	0.88	1.05	1.33	1.66
1 600	0.28	0.38	0.49	0.59	0.68	0.86	1.03	1.31	1.64
1 650	0.27	0.38	0.48	0.58	0.67	0.85	1.01	1.29	1.61
1 700	0.27	0.37	0.47	0.57	0.66	0.84	1.00	1.27	1.59
1 750	0.27	0.37	0.46	0.56	0.65	0.83	0.98	1.25	1.56

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 27(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
1 800	0.26	0.36	0.46	0.56	0.64	0.81	0.97	1.23	1.54
1 850	0.26	0.36	0.45	0.55	0.63	0.80	0.96	1.21	1.52
1 900	0.26	0.35	0.45	0.54	0.62	0.79	0.94	1.20	1.50
1 950	0.25	0.35	0.44	0.53	0.62	0.78	0.93	1.18	1.48
2 000	0.25	0.34	0.43	0.53	0.61	0.77	0.92	1.17	1.46
2 050	0.25	0.34	0.43	0.52	0.60	0.76	0.91	1.15	1.45
2 100	0.24	0.33	0.42	0.51	0.59	0.75	0.90	1.14	1.43
2 150	0.24	0.33	0.42	0.51	0.59	0.75	0.89	1.13	1.41
2 200	0.24	0.33	0.41	0.50	0.58	0.74	0.88	1.11	1.40
2 250	0.24	0.32	0.41	0.50	0.57	0.73	0.87	1.10	1.38
2 300	0.23	0.32	0.41	0.49	0.57	0.72	0.86	1.09	1.36
2 350	0.23	0.32	0.40	0.49	0.56	0.71	0.85	1.08	1.35
2 400	0.23	0.31	0.40	0.48	0.56	0.71	0.84	1.07	1.34
2 450	0.23	0.31	0.39	0.48	0.55	0.70	0.83	1.05	1.32
2 500	0.22	0.31	0.39	0.47	0.54	0.69	0.82	1.04	1.31
2 550	0.22	0.30	0.38	0.47	0.54	0.68	0.82	1.03	1.30
2 600	0.22	0.30	0.38	0.46	0.53	0.68	0.81	1.02	1.28
2 650	0.22	0.30	0.38	0.46	0.53	0.67	0.80	1.01	1.27
2 700	0.21	0.29	0.37	0.45	0.52	0.67	0.79	1.00	1.26
2 750	0.21	0.29	0.37	0.45	0.52	0.66	0.79	1.00	1.25
2 800	0.21	0.29	0.37	0.45	0.51	0.65	0.78	0.99	1.24
2 850	0.21	0.29	0.36	0.44	0.51	0.65	0.77	0.98	1.23
2 900	0.21	0.28	0.36	0.44	0.51	0.64	0.76	0.97	1.22
2 950	0.21	0.28	0.36	0.43	0.50	0.64	0.76	0.96	1.21
3 000	0.20	0.28	0.35	0.43	0.50	0.63	0.75	0.95	1.19
3 050	0.20	0.28	0.35	0.43	0.49	0.63	0.75	0.95	1.19
3 100	0.20	0.27	0.35	0.42	0.49	0.62	0.74	0.94	1.18
3 150	0.20	0.27	0.35	0.42	0.48	0.62	0.73	0.93	1.17
3 200	0.20	0.27	0.34	0.42	0.48	0.61	0.73	0.92	1.16
3 250	0.20	0.27	0.34	0.41	0.48	0.61	0.72	0.92	1.15
3 300	0.19	0.27	0.34	0.41	0.47	0.60	0.72	0.91	1.14
3 350	0.19	0.26	0.34	0.41	0.47	0.60	0.71	0.90	1.13
3 400	0.19	0.26	0.33	0.40	0.47	0.59	0.71	0.90	1.12
3 450	0.19	0.26	0.33	0.40	0.46	0.59	0.70	0.89	1.11
3 500	0.19	0.26	0.33	0.40	0.46	0.58	0.70	0.88	1.11
3 550	0.19	0.26	0.33	0.40	0.46	0.58	0.69	0.88	1.10
3 600	0.19	0.25	0.32	0.39	0.45	0.58	0.69	0.87	1.09
3 650	0.18	0.25	0.32	0.39	0.45	0.57	0.68	0.86	1.08
3 700	0.18	0.25	0.32	0.39	0.45	0.57	0.68	0.86	1.08
3 750	0.18	0.25	0.32	0.38	0.44	0.56	0.67	0.85	1.07
3 800	0.18	0.25	0.32	0.38	0.44	0.56	0.67	0.85	1.06
3 850	0.18	0.25	0.31	0.38	0.44	0.56	0.66	0.84	1.05
3 900	0.18	0.24	0.31	0.38	0.44	0.55	0.66	0.84	1.05
3 950	0.18	0.24	0.31	0.37	0.43	0.55	0.66	0.83	1.04
4 000	0.18	0.24	0.31	0.37	0.43	0.55	0.65	0.83	1.03
4 050	0.18	0.24	0.31	0.37	0.43	0.54	0.65	0.82	1.03
4 100	0.17	0.24	0.30	0.37	0.42	0.54	0.64	0.82	1.02
4 150	0.17	0.24	0.30	0.37	0.42	0.54	0.64	0.81	1.02
4 200	0.17	0.24	0.30	0.36	0.42	0.53	0.64	0.81	1.01
4 250	0.17	0.23	0.30	0.36	0.42	0.53	0.63	0.80	1.00
4 300	0.17	0.23	0.30	0.36	0.41	0.53	0.63	0.80	1.00
4 350	0.17	0.23	0.29	0.36	0.41	0.52	0.62	0.79	0.99
4 400	0.17	0.23	0.29	0.36	0.41	0.52	0.62	0.79	0.99
4 450	0.17	0.23	0.29	0.35	0.41	0.52	0.62	0.78	0.98
4 500	0.17	0.23	0.29	0.35	0.41	0.52	0.61	0.78	0.98
4 550	0.17	0.23	0.29	0.35	0.40	0.51	0.61	0.77	0.97
4 600	0.16	0.23	0.29	0.35	0.40	0.51	0.61	0.77	0.97
4 650	0.16	0.22	0.28	0.35	0.40	0.51	0.60	0.77	0.96
4 700	0.16	0.22	0.28	0.34	0.40	0.50	0.60	0.76	0.95
4 750	0.16	0.22	0.28	0.34	0.39	0.50	0.60	0.76	0.95
4 800	0.16	0.22	0.28	0.34	0.39	0.50	0.59	0.75	0.94
4 850	0.16	0.22	0.28	0.34	0.39	0.50	0.59	0.75	0.94
4 900	0.16	0.22	0.28	0.34	0.39	0.49	0.59	0.75	0.94
4 950	0.16	0.22	0.28	0.33	0.39	0.49	0.59	0.74	0.93
5 000	0.16	0.22	0.27	0.33	0.38	0.49	0.58	0.74	0.93

6.2.2 Site Working and Glass Machining Operation

6.2.2.1 Heat-strengthened and toughened glass shall not be cut or worked after heat treatment. All necessary cutting, drilling, notching and edge-working shall be carried out to correct dimensions prior to value addition to the glass, such as toughening/tempering/heat strengthening. The edges and surfaces of all glass types shall not be damaged during fixing.

6.2.3 Dimensional Requirement

The dimensions for edge clearance, edge cover, front and back clearance, rebate depth is selected in accordance with the requirements in 4.5.2.

6.2.4 Glazing Materials

6.2.4.1 Compatibility of materials

A glazing material shall be used only when compatible with contiguous materials, including the rebate surface finish, setting or location blocks, distance pieces and glass type are available.

6.2.4.2 Application of materials

The application of glazing materials shall be in accordance with relevant/available Indian Standard or manufacturer's recommendations.

6.2.4.3 Life expectancy of materials

A glazing material shall only be used where its life expectancy (durability) has been established. The manufacturers' advice/guarantee should be sought for information regarding life expectancy.

6.2.7Distance Pieces

Distance pieces, as shown in Fig. 13, used where required, shall be,

a) of resilient, non-absorbent material;

b) $25\mathrm{mm}$ long and of a height to suit the depth of the rebate and the method of glazing; and

c) spaced opposite each other, approximately 50 mm from each corner at intervals of not more than 300 mm.

The thickness shall be equal to the front and back clearance, to retain the glass firmly in the frame.

1 Distance pieces are required to prevent displacement of glazing compounds or sealant by external loading, such as wind pressure.

2 Extruded rubber material with 55 - 65 shore A hardness is required.

6.2.8 Rebates and Grooves for Installation

Rebates, grooves and beads shall be cleaned and free from grease, moisture and other contaminants. All sealant surfaces shall be primed or sealed in accordance with the recommendations of the manufacturer of the glazing material.

The number and location of setting blocks and location blocks shall be as shown in Fig. 10 to Fig. 12, wherever necessary to maintain the requisite edge clearance. Each block shall support the full thickness of the glass.

6.2.9 Glazing Beads

Where used, glazing beads shall be capable of restraining the glass under all design forces.

6.2.10Structural Sealants

Structural silicone shall be installed such that a full adhesive bond to the substrate is achieved. Application of structural silicone may require prior cleaning and or priming of the substrate.

Applied structural silicones shall not be installed adjacent to other materials that may be chemically incompatible with the structural sealant and cause a loss of adhesion or adverse chemical changes within

the structural silicone that could lead to a loss of strength in the structural silicone. For guidance on the installation of structural silicone, reference to available standards/literatures may be made.

FIG. 13 POSITION OF DISTANCE PIECES

6.2.1 Basic installation requirements and materials used for glass are given hereunder.

NOTES

3 Installation technique for frameless glazing system is not covered here.

Table 19Maximum Areas for Annealed Glass Fixed on All Four Sides, m² (Clause 6.1.9)

Design Wind Pressure $N/m^2$	Nominal Thickness of Annealed Glass, Tmm
Design Wind Pressure $N/m^2$	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	2.13	3.86	6.03	8.63	13.06	15.00	15.00	15.00	15.00
550	1.93	3.51	5.48	7.85	11.88	15.00	15.00	15.00	15.00
600	1.77	3.21	5.02	7.19	10.89	14.61	15.00	15.00	15.00
650	1.64	2.97	4.64	6.64	10.05	13.48	15.00	15.00	15.00
700	1.52	2.75	4.31	6.17	9.33	12.52	15.00	15.00	15.00
750	1.42	2.57	4.02	5.76	8.71	11.69	14.75	15.00	15.00
800	1.33	2.41	3.77	5.40	8.16	10.96	13.83	15.00	15.00
850	1.25	2.27	3.55	5.08	7.68	10.31	13.01	15.00	15.00
900	1.18	2.14	3.35	4.80	7.26	9.74	12.29	15.00	15.00
950	1.12	2.03	3.17	4.54	6.88	9.23	11.64	15.00	15.00
1 000	1.06	1.93	3.01	4.32	6.53	8.76	11.06	15.00	15.00
1 050	1.01	1.84	2.87	4.11	6.22	8.35	10.53	14.38	15.00
1 100	0.97	1.75	2.74	3.92	5.94	7.97	10.06	13.73	15.00
1 150	0.93	1.68	2.62	3.75	5.68	7.62	9.62	13.13	15.00
1 200	0.89	1.61	2.51	3.60	5.44	7.30	9.22	12.58	15.00
1 250	0.85	1.54	2.41	3.45	5.23	7.01	8.85	12.08	15.00
1 300	0.82	1.48	2.32	3.32	5.02	6.74	8.51	11.61	15.00
1 350	0.79	1.43	2.23	3.20	4.84	6.49	8.19	11.18	14.98
1 400	0.76	1.38	2.15	3.08	4.67	6.26	7.90	10.78	14.44
1 450	0.73	1.33	2.08	2.98	4.50	6.04	7.63	10.41	13.95
1 500	0.71	1.29	2.01	2.88	4.35	5.84	7.37	10.07	13.48
1 550	0.69	1.24	1.94	2.78	4.21	5.65	7.14	9.74	13.05
1 600	0.67	1.21	1.88	2.70	4.08	5.48	6.91	9.44	12.64
1 650	0.64	1.17	1.83	2.62	3.96	5.31	6.70	9.15	12.25
1 700	0.63	1.13	1.77	2.54	3.84	5.16	6.51	8.88	11.89
1 750	0.61	1.10	1.72	2.47	3.73	5.01	6.32	8.63	11.55
1 800	0.59	1.07	1.67	2.40	3.63	4.87	6.14	8.39	11.23
1 850	0.58	1.04	1.63	2.33	3.53	4.74	5.98	8.16	10.93
1 900	0.56	1.01	1.59	2.27	3.44	4.61	5.82	7.95	10.64
1 950	0.55	0.99	1.55	2.21	3.35	4.49	5.67	7.74	10.37
2 000	0.53	0.96	1.51	2.16	3.27	4.38	5.53	7.55	10.11
2 050	0.52	0.94	1.47	2.11	3.19	4.28	5.40	7.36	9.86
2 100	0.51	0.92	1.44	2.06	3.11	4.17	5.27	7.19	9.63
2 150	0.49	0.90	1.40	2.01	3.04	4.08	5.14	7.02	9.40
2 200	0.48	0.88	1.37	1.96	2.97	3.98	5.03	6.86	9.19
2 250	0.47	0.86	1.34	1.92	2.90	3.90	4.92	6.71	8.99
2 300	0.46	0.84	1.31	1.88	2.84	3.81	4.81	6.56	8.79
2 350	0.45	0.82	1.28	1.84	2.78	3.73	4.71	6.42	8.60
2 400	0.44	0.80	1.26	1.80	2.72	3.65	4.61	6.29	8.43
2 450	0.43	0.79	1.23	1.76	2.67	3.58	4.51	6.16	8.25
2 500	0.43	0.77	1.21	1.73	2.61	3.51	4.42	6.04	8.09
2 550	0.42	0.76	1.18	1.69	2.56	3.44	4.34	5.92	7.93
2 600	0.41	0.74	1.16	1.66	2.51	3.37	4.25	5.81	7.78
2 650	0.40	0.73	1.14	1.63	2.46	3.31	4.17	5.70	7.63
2 700	0.39	0.71	1.12	1.60	2.42	3.25	4.10	5.59	7.49
2 750	0.39	0.70	1.10	1.57	2.38	3.19	4.02	5.49	7.35
2 800	0.38	0.69	1.08	1.54	2.33	3.13	3.95	5.39	7.22
2 850	0.37	0.68	1.06	1.51	2.29	3.08	3.88	5.30	7.09
2 900	0.37	0.66	1.04	1.49	2.25	3.02	3.81	5.21	6.97
2 950	0.36	0.65	1.02	1.46	2.21	2.97	3.75	5.12	6.85
3 000	0.35	0.64	1.00	1.44	2.18	2.92	3.69	5.03	6.74
3 050	0.35	0.63	0.99	1.42	2.14	2.87	3.63	4.95	6.63
3 100	0.34	0.62	0.97	1.39	2.11	2.83	3.57	4.87	6.52
3 150	0.34	0.61	0.96	1.37	2.07	2.78	3.51	4.79	6.42
3 200	0.33	0.60	0.94	1.35	2.04	2.74	3.46	4.72	6.32
3 250	0.33	0.59	0.93	1.33	2.01	2.70	3.40	4.65	6.22
3 300	0.32	0.58	0.91	1.31	1.98	2.66	3.35	4.58	6.13
3 350	0.32	0.58	0.90	1.29	1.95	2.62	3.30	4.51	6.04
3 400	0.31	0.57	0.89	1.27	1.92	2.58	3.25	4.44	5.95
3 450	0.31	0.56	0.87	1.25	1.89	2.54	3.21	4.38	5.86

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 19(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
3 500	0.30	0.55	0.86	1.23	1.87	2.50	3.16	4.31	5.78
3 550	0.30	0.54	0.85	1.22	1.84	2.47	3.12	4.25	5.70
3 600	0.30	0.54	0.84	1.20	1.81	2.43	3.07	4.19	5.62
3 650	0.29	0.53	0.83	1.18	1.79	2.40	3.03	4.14	5.54
3 700	0.29	0.52	0.81	1.17	1.77	2.37	2.99	4.08	5.47
3 750	0.28	0.51	0.80	1.15	1.74	2.34	2.95	4.03	5.39
3 800	0.28	0.51	0.79	1.14	1.72	2.31	2.91	3.97	5.32
3 850	0.28	0.50	0.78	1.12	1.70	2.28	2.87	3.92	5.25
3 900	0.27	0.49	0.77	1.11	1.67	2.25	2.84	3.87	5.18
3 950	0.27	0.49	0.76	1.09	1.65	2.22	2.80	3.82	5.12
4 000	0.27	0.48	0.75	1.08	1.63	2.19	2.77	3.77	5.06
4 050	0.26	0.48	0.74	1.07	1.61	2.16	2.73	3.73	4.99
4 100	0.26	0.47	0.74	1.05	1.59	2.14	2.70	3.68	4.93
4 150	0.26	0.46	0.73	1.04	1.57	2.11	2.67	3.64	4.87
4 200	0.25	0.46	0.72	1.03	1.56	2.09	2.63	3.59	4.81
4 250	0.25	0.45	0.71	1.02	1.54	2.06	2.60	3.55	4.76
4 300	0.25	0.45	0.70	1.00	1.52	2.04	2.57	3.51	4.70
4 350	0.24	0.44	0.69	0.99	1.50	2.01	2.54	3.47	4.65
4 400	0.24	0.44	0.69	0.98	1.48	1.99	2.51	3.43	4.60
4 450	0.24	0.43	0.68	0.97	1.47	1.97	2.49	3.39	4.54
4 500	0.24	0.43	0.67	0.96	1.45	1.95	2.46	3.36	4.49
4 550	0.23	0.42	0.66	0.95	1.44	1.93	2.43	3.32	4.44
4 600	0.23	0.42	0.66	0.94	1.42	1.91	2.40	3.28	4.40
4 650	0.23	0.41	0.65	0.93	1.40	1.88	2.38	3.25	4.35
4 700	0.23	0.41	0.64	0.92	1.39	1.86	2.35	3.21	4.30
4 750	0.22	0.41	0.63	0.91	1.38	1.85	2.33	3.18	4.26
4 800	0.22	0.40	0.63	0.90	1.36	1.83	2.30	3.15	4.21
4 850	0.22	0.40	0.62	0.89	1.35	1.81	2.28	3.11	4.17
4 900	0.22	0.39	0.62	0.88	1.33	1.79	2.26	3.08	4.13
4 950	0.21	0.39	0.61	0.87	1.32	1.77	2.23	3.05	4.08
5 000	0.21	0.39	0.60	0.86	1.31	1.75	2.21	3.02	4.04
Maximum aspect ratio	7.3	6.8	6.5	6.3	5.9	4.9	4.3	3.8	3.3

Table 20Maximum Areas for Laminated Glass Fixed on All Four Sides, \mathrm{m}^2 (Clause 6.1.9)

Design Wind Pressure	Nominal Thickness of Laminated Glass, T mm
Design Wind Pressure	N/m2(1)	5.38(2)	6.38(3)	8.38(4)	10.38(5)	12.38(6)
500	4.47	6.28	10.45	14.02	15.00	15.00
550	4.06	5.71	9.50	12.75	15.00	15.00
600	3.72	5.23	8.71	11.69	15.00	15.00
650	3.44	4.83	8.04	10.79	13.93	15.00
700	3.19	4.48	7.46	10.02	12.94	15.00
750	2.98	4.19	6.97	9.35	12.08	15.00
800	2.79	3.92	6.53	8.76	11.32	15.00
850	2.63	3.69	6.15	8.25	10.66	15.00
900	2.48	3.49	5.81	7.79	10.06	14.21
950	2.35	3.30	5.50	7.38	9.53	13.46
1 000	2.23	3.14	5.23	7.01	9.06	12.79
1 050	2.13	2.99	4.98	6.68	8.63	12.18
1 100	2.03	2.85	4.75	6.37	8.23	11.63
1 150	1.94	2.73	4.54	6.10	7.88	11.12
1 200	1.86	2.62	4.35	5.84	7.55	10.66
1 250	1.79	2.51	4.18	5.61	7.25	10.23
1 300	1.72	2.41	4.02	5.39	6.97	9.84
1 350	1.66	2.33	3.87	5.19	6.71	9.47
1 400	1.60	2.24	3.73	5.01	6.47	9.14
1 450	1.54	2.16	3.60	4.84	6.25	8.82
1 500	1.49	2.09	3.48	4.67	6.04	8.53

Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)
(1)	(2)	(3)	(4)	(5)	(6)	(7)
1 550	1.44	2.03	3.37	4.52	5.84	8.25
1 600	1.40	1.96	3.27	4.38	5.66	7.99
1 650	1.35	1.90	3.17	4.25	5.49	7.75
1 700	1.31	1.85	3.07	4.12	5.33	7.52
1 750	1.28	1.79	2.99	4.01	5.18	7.31
1 800	1.24	1.74	2.90	3.90	5.03	7.11
1 850	1.21	1.70	2.82	3.79	4.90	6.91
1 900	1.18	1.65	2.75	3.69	4.77	6.73
1 950	1.15	1.61	2.68	3.60	4.64	6.56
2 000	1.12	1.57	2.61	3.51	4.53	6.40
2 050	1.09	1.53	2.55	3.42	4.42	6.24
2 100	1.06	1.49	2.49	3.34	4.31	6.09
2 150	1.04	1.46	2.43	3.26	4.21	5.95
2 200	1.02	1.43	2.38	3.19	4.12	5.81
2 250	0.99	1.40	2.32	3.12	4.03	5.68
2 300	0.97	1.36	2.27	3.05	3.94	5.56
2 350	0.95	1.34	2.22	2.98	3.85	5.44
2 400	0.93	1.31	2.18	2.92	3.77	5.33
2 450	0.91	1.28	2.13	2.86	3.70	5.22
2 500	0.89	1.26	2.09	2.80	3.62	5.12
2550	0.88	1.23	2.05	2.75	3.55	5.02
2 600	0.86	1.21	2.01	2.70	3.48	4.92
2 650	0.84	1.18	1.97	2.65	3.42	4.83
2 700	0.83	1.16	1.94	2.60	3.35	4.74
2 750	0.81	1.14	1.90	2.55	3.29	4.65
2 800	0.80	1.12	1.87	2.50	3.23	4.57
2 850	0.78	1.10	1.83	2.46	3.18	4.49
2 900	0.77	1.08	1.80	2.42	3.12	4.41
2 950	0.76	1.06	1.77	2.38	3.07	4.34
Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)	Table 20 — (Continued)
(1)	(2)	(3)	(4)	(5)	(6)	(7)
3 000	0.74	1.05	1.74	2.34	3.02	4.26
3 050	0.73	1.03	1.71	2.30	2.97	4.19
3 100	0.72	1.01	1.69	2.26	2.92	4.13
3 150	0.71	1.00	1.66	2.23	2.88	4.06
3 200	0.70	0.98	1.63	2.19	2.83	4.00
3 250	0.69	0.97	1.61	2.16	2.79	3.94
3 300	0.68	0.95	1.58	2.12	2.74	3.88
3 350	0.67	0.94	1.56	2.09	2.70	3.82
3 400	0.66	0.92	1.54	2.06	2.66	3.76
3 450	0.65	0.91	1.51	2.03	2.63	3.71
3 500	0.64	0.90	1.49	2.00	2.59	3.65
3 550	0.63	0.88	1.47	1.98	2.55	3.60
3 600	0.62	0.87	1.45	1.95	2.52	3.55
3 650	0.61	0.86	1.43	1.92	2.48	3.50
3 700	0.60	0.85	1.41	1.90	2.45	3.46
3 750	0.60	0.84	1.39	1.87	2.42	3.41
3 800	0.59	0.83	1.38	1.85	2.38	3.37
3 850	0.58	0.82	1.36	1.82	2.35	3.32
3 900	0.57	0.80	1.34	1.80	2.32	3.28
3 950	0.57	0.79	1.32	1.78	2.29	3.24
4 000	0.56	0.78	1.31	1.75	2.26	3.20
4 050	0.55	0.78	1.29	1.73	2.24	3.16

Table 20 — (Concluded)
(1)	(2)	(3)	(4)	(5)	(6)	(7)
4 100	0.55	0.77	1.27	1.71	2.21	3.12
4 150	0.54	0.76	1.26	1.69	2.18	3.08
4 200	0.53	0.75	1.24	1.67	2.16	3.05
4 250	0.53	0.74	1.23	1.65	2.13	3.01
4 300	0.52	0.73	1.22	1.63	2.11	2.97
4 350	0.51	0.72	1.20	1.61	2.08	2.94
4 400	0.51	0.71	1.19	1.59	2.06	2.91
4 450	0.50	0.71	1.17	1.58	2.04	2.87
4 500	0.50	0.70	1.16	1.56	2.01	2.84
4 550	0.49	0.69	1.15	1.54	1.99	2.81
4 600	0.49	0.68	1.14	1.52	1.97	2.78
4 650	0.48	0.68	1.12	1.51	1.95	2.75
4 700	0.48	0.67	1.11	1.49	1.93	2.72
4 750	0.47	0.66	1.10	1.48	1.91	2.69
4 800	0.47	0.65	1.09	1.46	1.89	2.66
4 850	0.46	0.65	1.08	1.45	1.87	2.64
4 900	0.46	0.64	1.07	1.43	1.85	2.61
4 950	0.45	0.63	1.06	1.42	1.83	2.58
5 000	0.45	0.63	1.05	1.40	1.81	2.56
Maximum aspect ratio	6.5	6.2	5.7	4.8	4.3	3.6

Table 21Maximum Areas for Tempered Glass Fixed on All Four Sides, m^{2} (Clause 6.1.9)

Design Wind Pressure $N/m^2$	Nominal Thickness of Tempered Glass, T mm
Design Wind Pressure $N/m^2$	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	5.32	9.64	15.00	15.00	15.00	15.00	15.00	15.00	15.00
550	4.84	8.76	13.70	15.00	15.00	15.00	15.00	15.00	15.00
600	4.43	8.03	12.56	15.00	15.00	15.00	15.00	15.00	15.00
650	4.09	7.42	11.59	15.00	15.00	15.00	15.00	15.00	15.00
700	3.80	6.89	10.77	15.00	15.00	15.00	15.00	15.00	15.00
750	3.55	6.43	10.05	14.39	15.00	15.00	15.00	15.00	15.00
800	3.33	6.03	9.42	13.49	15.00	15.00	15.00	15.00	15.00
850	3.13	5.67	8.87	12.70	15.00	15.00	15.00	15.00	15.00
900	2.96	5.36	8.37	11.99	15.00	15.00	15.00	15.00	15.00
950	2.80	5.07	7.93	11.36	15.00	15.00	15.00	15.00	15.00
1 000	2.66	4.82	7.54	10.79	15.00	15.00	15.00	15.00	15.00
1 050	2.53	4.59	7.18	10.28	15.00	15.00	15.00	15.00	15.00
1 100	2.42	4.38	6.85	9.81	14.84	15.00	15.00	15.00	15.00
1 150	2.31	4.19	6.55	9.38	14.20	15.00	15.00	15.00	15.00
1 200	2.22	4.02	6.28	8.99	13.61	15.00	15.00	15.00	15.00
1 250	2.13	3.86	6.03	8.63	13.06	15.00	15.00	15.00	15.00
1 300	2.05	3.71	5.80	8.30	12.56	15.00	15.00	15.00	15.00
1 350	1.97	3.57	5.58	7.99	12.10	15.00	15.00	15.00	15.00
1 400	1.90	3.44	5.38	7.71	11.66	15.00	15.00	15.00	15.00
1 450	1.83	3.32	5.20	7.44	11.26	15.00	15.00	15.00	15.00
1 500	1.77	3.21	5.02	7.19	10.89	14.61	15.00	15.00	15.00
1 550	1.72	3.11	4.86	6.96	10.53	14.14	15.00	15.00	15.00
1 600	1.66	3.01	4.71	6.74	10.21	13.69	15.00	15.00	15.00
1 650	1.61	2.92	4.57	6.54	9.90	13.28	15.00	15.00	15.00
1 700	1.56	2.84	4.43	6.35	9.61	12.89	15.00	15.00	15.00
1 750	1.52	2.75	4.31	6.17	9.33	12.52	15.00	15.00	15.00
1 800	1.48	2.68	4.19	6.00	9.07	12.17	15.00	15.00	15.00
1 850	1.44	2.61	4.07	5.83	8.83	11.84	14.95	15.00	15.00
1 900	1.40	2.54	3.97	5.68	8.59	11.53	14.55	15.00	15.00
1 950	1.36	2.47	3.86	5.53	8.37	11.24	14.18	15.00	15.00
2 000	1.33	2.41	3.77	5.40	8.16	10.96	13.83	15.00	15.00
2 050	1.30	2.35	3.68	5.26	7.97	10.69	13.49	15.00	15.00

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 21(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
2 100	1.27	2.30	3.59	5.14	7.78	10.43	13.17	15.00	15.00
2 150	1.24	2.24	3.51	5.02	7.59	10.19	12.86	15.00	15.00
2 200	1.21	2.19	3.43	4.91	7.42	9.96	12.57	15.00	15.00
2 250	1.18	2.14	3.35	4.80	7.26	9.74	12.29	15.00	15.00
2 300	1.16	2.10	3.28	4.69	7.10	9.53	12.02	15.00	15.00
2 350	1.13	2.05	3.21	4.59	6.95	9.32	11.77	15.00	15.00
2 400	1.11	2.01	3.14	4.50	6.80	9.13	11.52	15.00	15.00
2 450	1.09	1.97	3.08	4.40	6.66	8.94	11.29	15.00	15.00
2 500	1.06	1.93	3.01	4.32	6.53	8.76	11.06	15.00	15.00
2 550	1.04	1.89	2.96	4.23	6.40	8.59	10.84	14.80	15.00
2 600	1.02	1.85	2.90	4.15	6.28	8.43	10.64	14.52	15.00
2 650	1.00	1.82	2.84	4.07	6.16	8.27	10.43	14.24	15.00
2 700	0.99	1.79	2.79	4.00	6.05	8.12	10.24	13.98	15.00
2 750	0.97	1.75	2.74	3.92	5.94	7.97	10.06	13.73	15.00
2 800	0.95	1.72	2.69	3.85	5.83	7.83	9.88	13.48	15.00
2 850	0.93	1.69	2.64	3.79	5.73	7.69	9.70	13.24	15.00
2 900	0.92	1.66	2.60	3.72	5.63	7.56	9.54	13.02	15.00
2 950	0.90	1.63	2.55	3.66	5.54	7.43	9.37	12.79	15.00
3 000	0.89	1.61	2.51	3.60	5.44	7.30	9.22	12.58	15.00
3 050	0.87	1.58	2.47	3.54	5.35	7.18	9.07	12.38	15.00
3 100	0.86	1.56	2.43	3.48	5.27	7.07	8.92	12.18	15.00
3 150	0.84	1.53	2.39	3.43	5.18	6.96	8.78	11.98	15.00
3 200	0.83	1.51	2.36	3.37	5.10	6.85	8.64	11.79	15.00
3 250	0.82	1.48	2.32	3.32	5.02	6.74	8.51	11.61	15.00
3 300	0.81	1.46	2.28	3.27	4.95	6.64	8.38	11.44	15.00
3 350	0.79	1.44	2.25	3.22	4.87	6.54	8.25	11.27	15.00
3 400	0.78	1.42	2.22	3.17	4.80	6.44	8.13	11.10	14.87
3 450	0.77	1.40	2.18	3.13	4.73	6.35	8.02	10.94	14.65
3 500	0.76	1.38	2.15	3.08	4.67	6.26	7.90	10.78	14.44
3 550	0.75	1.36	2.12	3.04	4.60	6.17	7.79	10.63	14.24
3 600	0.74	1.34	2.09	3.00	4.54	6.09	7.68	10.48	14.04
3 650	0.73	1.32	2.06	2.96	4.47	6.00	7.58	10.34	13.85
3 700	0.72	1.30	2.04	2.92	4.41	5.92	7.47	10.20	13.66
3 750	0.71	1.29	2.01	2.88	4.35	5.84	7.37	10.07	13.48
3 800	0.70	1.27	1.98	2.84	4.30	5.77	7.28	9.93	13.30
3 850	0.69	1.25	1.96	2.80	4.24	5.69	7.18	9.80	13.13
3 900	0.68	1.24	1.93	2.77	4.19	5.62	7.09	9.68	12.96
3 950	0.67	1.22	1.91	2.73	4.13	5.55	7.00	9.56	12.80
4 000	0.67	1.21	1.88	2.70	4.08	5.48	6.91	9.44	12.64
4 050	0.66	1.19	1.86	2.66	4.03	5.41	6.83	9.32	12.48
4 100	0.65	1.18	1.84	2.63	3.98	5.34	6.74	9.21	12.33
4 150	0.64	1.16	1.82	2.60	3.93	5.28	6.66	9.09	12.18
4 200	0.63	1.15	1.79	2.57	3.89	5.22	6.58	8.99	12.04
4 250	0.63	1.13	1.77	2.54	3.84	5.16	6.51	8.88	11.89
4 300	0.62	1.12	1.75	2.51	3.80	5.10	6.43	8.78	11.76
4 350	0.61	1.11	1.73	2.48	3.75	5.04	6.36	8.68	11.62
4 400	0.60	1.10	1.71	2.45	3.71	4.98	6.28	8.58	11.49
4 450	0.60	1.08	1.69	2.43	3.67	4.92	6.21	8.48	11.36
4 500	0.59	1.07	1.67	2.40	3.63	4.87	6.14	8.39	11.23
4 550	0.58	1.06	1.66	2.37	3.59	4.82	6.08	8.30	11.11
4 600	0.58	1.05	1.64	2.35	3.55	4.76	6.01	8.21	10.99
4 650	0.57	1.04	1.62	2.32	3.51	4.71	5.95	8.12	10.87
4 700	0.57	1.03	1.60	2.30	3.47	4.66	5.88	8.03	10.76
4 750	0.56	1.01	1.59	2.27	3.44	4.61	5.82	7.95	10.64
4 800	0.55	1.00	1.57	2.25	3.40	4.56	5.76	7.86	10.53
4 850	0.55	0.99	1.55	2.23	3.37	4.52	5.70	7.78	10.42
4 900	0.54	0.98	1.54	2.20	3.33	4.47	5.64	7.70	10.32
4 950	0.54	0.97	1.52	2.18	3.30	4.43	5.59	7.63	10.21
5 000	0.53	0.96	1.51	2.16	3.27	4.38	5.53	7.55	10.11
Maximum
aspect ratio	7.3	6.8	6.5	6.3	5.9	4.9	4.3	3.8	3.3

Table 22Maximum Areas for Insulating Glass Fixed on All Four Sides, m² (Clause 6.1.9)

Design Wind Pressure	Nominal Thickness of Insulating Glass, T mm
Design Wind Pressure	N/m2(1)	3+3(2)	4+4(3)	5+5(4)	6+6(5)	8+8(6)	10+10(7)
500	3.19	5.78	9.04	12.95	15.00	15.00	15.00
550	2.90	5.26	8.22	11.77	15.00	15.00	15.00
600	2.66	4.82	7.54	10.79	15.00	15.00	15.00
650	2.46	4.45	6.96	9.96	15.00	15.00	15.00
700	2.28	4.13	6.46	9.25	14.00	15.00	15.00
750	2.13	3.86	6.03	8.63	13.06	15.00	15.00
800	2.00	3.62	5.65	8.09	12.25	15.00	15.00
850	1.88	3.40	5.32	7.62	11.53	15.00	15.00
900	1.77	3.21	5.02	7.19	10.89	14.61	15.00
950	1.68	3.04	4.76	6.82	10.31	13.84	15.00
1 000	1.60	2.89	4.52	6.48	9.80	13.15	15.00
1 050	1.52	2.75	4.31	6.17	9.33	12.52	15.00
1 100	1.45	2.63	4.11	5.89	8.91	11.95	15.00
1 150	1.39	2.52	3.93	5.63	8.52	11.43	14.43
1 200	1.33	2.41	3.77	5.40	8.16	10.96	13.83
1 250	1.28	2.31	3.62	5.18	7.84	10.52	13.27
1 300	1.23	2.22	3.48	4.98	7.54	10.11	12.76
1 350	1.18	2.14	3.35	4.80	7.26	9.74	12.29
1 400	1.14	2.07	3.23	4.63	7.00	9.39	11.85
1 450	1.10	1.99	3.12	4.47	6.76	9.07	11.44
1 500	1.06	1.93	3.01	4.32	6.53	8.76	11.06
1 550	1.03	1.87	2.92	4.18	6.32	8.48	10.70
1 600	1.00	1.81	2.83	4.05	6.12	8.22	10.37
1 650	0.97	1.75	2.74	3.92	5.94	7.97	10.06
1 700	0.94	1.70	2.66	3.81	5.76	7.73	9.76
1 750	0.91	1.65	2.58	3.70	5.60	7.51	9.48
1 800	0.89	1.61	2.51	3.60	5.44	7.30	9.22
1 850	0.86	1.56	2.44	3.50	5.30	7.11	8.97
1 900	0.84	1.52	2.38	3.41	5.16	6.92	8.73
1 950	0.82	1.48	2.32	3.32	5.02	6.74	8.51
2 000	0.80	1.45	2.26	3.24	4.90	6.57	8.30
2 050	0.78	1.41	2.21	3.16	4.78	6.41	8.09
2 100	0.76	1.38	2.15	3.08	4.67	6.26	7.90
2 150	0.74	1.35	2.10	3.01	4.56	6.11	7.72
2 200	0.73	1.31	2.06	2.94	4.45	5.98	7.54
2 250	0.71	1.29	2.01	2.88	4.35	5.84	7.37
2 300	0.69	1.26	1.97	2.82	4.26	5.72	7.21
2 350	0.68	1.23	1.92	2.76	4.17	5.59	7.06
2 400	0.67	1.21	1.88	2.70	4.08	5.48	6.91
2 450	0.65	1.18	1.85	2.64	4.00	5.37	6.77
2 500	0.64	1.16	1.81	2.59	3.92	5.26	6.64
2 550	0.63	1.13	1.77	2.54	3.84	5.16	6.51
2 600	0.61	1.11	1.74	2.49	3.77	5.06	6.38
2 650	0.60	1.09	1.71	2.44	3.70	4.96	6.26
2 700	0.59	1.07	1.67	2.40	3.63	4.87	6.14

Table 22 — (Concluded)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
2 750	0.58	1.05	1.64	2.35	3.56	4.78	6.03
2 800	0.57	1.03	1.61	2.31	3.50	4.70	5.93
2 850	0.56	1.01	1.59	2.27	3.44	4.61	5.82
2 900	0.55	1.00	1.56	2.23	3.38	4.53	5.72
2 950	0.54	0.98	1.53	2.19	3.32	4.46	5.62
3 000	0.53	0.96	1.51	2.16	3.27	4.38	5.53
3 050	0.52	0.95	1.48	2.12	3.21	4.31	5.44
3 100	0.51	0.93	1.46	2.09	3.16	4.24	5.35
3 150	0.51	0.92	1.44	2.06	3.11	4.17	5.27
3 200	0.50	0.90	1.41	2.02	3.06	4.11	5.18
3 250	0.49	0.89	1.39	1.99	3.01	4.05	5.11
3 300	0.48	0.88	1.37	1.96	2.97	3.98	5.03
3 350	0.48	0.86	1.35	1.93	2.92	3.92	4.95
3 400	0.47	0.85	1.33	1.90	2.88	3.87	4.88
3 450	0.46	0.84	1.31	1.88	2.84	3.81	4.81
3 500	0.46	0.83	1.29	1.85	2.80	3.76	4.74
3 550	0.45	0.81	1.27	1.82	2.76	3.70	4.67
3 600	0.44	0.80	1.26	1.80	2.72	3.65	4.61
3 650	0.44	0.79	1.24	1.77	2.68	3.60	4.55
3 700	0.43	0.78	1.22	1.75	2.65	3.55	4.48
3 750	0.43	0.77	1.21	1.73	2.61	3.51	4.42
3 800	0.42	0.76	1.19	1.70	2.58	3.46	4.37
3 850	0.41	0.75	1.17	1.68	2.54	3.41	4.31
3 900	0.41	0.74	1.16	1.66	2.51	3.37	4.25
3 950	0.40	0.73	1.14	1.64	2.48	3.33	4.20
4 000	0.40	0.72	1.13	1.62	2.45	3.29	4.15
4 050	0.39	0.71	1.12	1.60	2.42	3.25	4.10
4 100	0.39	0.71	1.10	1.58	2.39	3.21	4.05
4 150	0.38	0.70	1.09	1.56	2.36	3.17	4.00
4 200	0.38	0.69	1.08	1.54	2.33	3.13	3.95
4 250	0.38	0.68	1.06	1.52	2.31	3.09	3.90
4 300	0.37	0.67	1.05	1.51	2.28	3.06	3.86
4 350	0.37	0.66	1.04	1.49	2.25	3.02	3.81
4 400	0.36	0.66	1.03	1.47	2.23	2.99	3.77
4 450	0.36	0.65	1.02	1.46	2.20	2.95	3.73
4 500	0.35	0.64	1.00	1.44	2.18	2.92	3.69
4 550	0.35	0.64	0.99	1.42	2.15	2.89	3.65
4 600	0.35	0.63	0.98	1.41	2.13	2.86	3.61
4 650	0.34	0.62	0.97	1.39	2.11	2.83	3.57
4 700	0.34	0.62	0.96	1.38	2.08	2.80	3.53
4 750	0.34	0.61	0.95	1.36	2.06	2.77	3.49
4 800	0.33	0.60	0.94	1.35	2.04	2.74	3.46
4 850	0.33	0.60	0.93	1.34	2.02	2.71	3.42
4 900	0.33	0.59	0.92	1.32	2.00	2.68	3.39
4 950	0.32	0.58	0.91	1.31	1.98	2.66	3.35
5 000	0.32	0.58	0.90	1.30	1.96	2.63	3.32
Maximum
aspect ratio	7.3	6.8	6.5	6.3	5.9	4.9	4.3

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 23Maximum Area for Heat Strengthened Glass Fixed on Four Sides, m^{2} (Clause 6.1.9)

Design Wind Pressure $N/m^2$ (1)	Nominal Thickness of Heat Strengthened Glass, Tmm
Design Wind Pressure $N/m^2$ (1)	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	3.41	6.17	9.65	13.81	15.00	15.00	15.00	15.00	15.00
550	3.10	5.61	8.77	12.56	15.00	15.00	15.00	15.00	15.00
600	2.84	5.14	8.04	11.51	15.00	15.00	15.00	15.00	15.00
650	2.62	4.75	7.42	10.63	15.00	15.00	15.00	15.00	15.00
700	2.43	4.41	6.89	9.87	14.93	15.00	15.00	15.00	15.00
750	2.27	4.11	6.43	9.21	13.93	15.00	15.00	15.00	15.00
800	2.13	3.86	6.03	8.63	13.06	15.00	15.00	15.00	15.00
850	2.00	3.63	5.67	8.13	12.29	15.00	15.00	15.00	15.00
900	1.89	3.43	5.36	7.67	11.61	15.00	15.00	15.00	15.00
950	1.79	3.25	5.08	7.27	11.00	14.76	15.00	15.00	15.00
1 000	1.70	3.09	4.82	6.91	10.45	14.02	15.00	15.00	15.00
1 050	1.62	2.94	4.59	6.58	9.95	13.36	15.00	15.00	15.00
1 100	1.55	2.80	4.38	6.28	9.50	12.75	15.00	15.00	15.00
1 150	1.48	2.68	4.19	6.01	9.09	12.19	15.00	15.00	15.00
1 200	1.42	2.57	4.02	5.76	8.71	11.69	14.75	15.00	15.00
1 250	1.36	2.47	3.86	5.53	8.36	11.22	14.16	15.00	15.00
1 300	1.31	2.37	3.71	5.31	8.04	10.79	13.61	15.00	15.00
1 350	1.26	2.29	3.57	5.12	7.74	10.39	13.11	15.00	15.00
1 400	1.22	2.20	3.45	4.93	7.46	10.02	12.64	15.00	15.00
1 450	1.17	2.13	3.33	4.76	7.21	9.67	12.21	15.00	15.00
1 500	1.14	2.06	3.22	4.60	6.97	9.35	11.80	15.00	15.00
1 550	1.10	1.99	3.11	4.46	6.74	9.05	11.42	15.00	15.00
1 600	1.06	1.93	3.01	4.32	6.53	8.76	11.06	15.00	15.00
1 650	1.03	1.87	2.92	4.19	6.33	8.50	10.73	14.64	15.00
1 700	1.00	1.81	2.84	4.06	6.15	8.25	10.41	14.21	15.00
1 750	0.97	1.76	2.76	3.95	5.97	8.01	10.11	13.80	15.00
1 800	0.95	1.71	2.68	3.84	5.81	7.79	9.83	13.42	15.00
1 850	0.92	1.67	2.61	3.73	5.65	7.58	9.57	13.06	15.00
1 900	0.90	1.62	2.54	3.64	5.50	7.38	9.31	12.71	15.00
1 950	0.87	1.58	2.47	3.54	5.36	7.19	9.08	12.39	15.00
2 000	0.85	1.54	2.41	3.45	5.23	7.01	8.85	12.08	15.00
2 050	0.83	1.50	2.35	3.37	5.10	6.84	8.63	11.78	15.00
2 100	0.81	1.47	2.30	3.29	4.98	6.68	8.43	11.50	15.00
2 150	0.79	1.43	2.24	3.21	4.86	6.52	8.23	11.24	15.00
2 200	0.77	1.40	2.19	3.14	4.75	6.37	8.04	10.98	14.71
2 250	0.76	1.37	2.14	3.07	4.64	6.23	7.87	10.74	14.38
2 300	0.74	1.34	2.10	3.00	4.54	6.10	7.69	10.50	14.07
2 350	0.72	1.31	2.05	2.94	4.45	5.97	7.53	10.28	13.77
2 400	0.71	1.29	2.01	2.88	4.35	5.84	7.37	10.07	13.48
2 450	0.69	1.26	1.97	2.82	4.27	5.72	7.22	9.86	13.21
2 500	0.68	1.23	1.93	2.76	4.18	5.61	7.08	9.66	12.94
2 550	0.67	1.21	1.89	2.71	4.10	5.50	6.94	9.47	12.69
2 600	0.65	1.19	1.86	2.66	4.02	5.39	6.81	9.29	12.44
2 650	0.64	1.16	1.82	2.61	3.94	5.29	6.68	9.12	12.21
2 700	0.63	1.14	1.79	2.56	3.87	5.19	6.55	8.95	11.98
2 750	0.62	1.12	1.75	2.51	3.80	5.10	6.44	8.78	11.76
2 800	0.61	1.10	1.72	2.47	3.73	5.01	6.32	8.63	11.55
2 850	0.60	1.08	1.69	2.42	3.67	4.92	6.21	8.48	11.35
2 900	0.59	1.06	1.66	2.38	3.60	4.84	6.10	8.33	11.16
2 950	0.58	1.05	1.63	2.34	3.54	4.75	6.00	8.19	10.97
3 000	0.57	1.03	1.61	2.30	3.48	4.67	5.90	8.05	10.78
3 050	0.56	1.01	1.58	2.26	3.43	4.60	5.80	7.92	10.61
3 100	0.55	1.00	1.56	2.23	3.37	4.52	5.71	7.79	10.44
3 150	0.54	0.98	1.53	2.19	3.32	4.45	5.62	7.67	10.27
3 200	0.53	0.96	1.51	2.16	3.27	4.38	5.53	7.55	10.11
3 250	0.52	0.95	1.48	2.13	3.22	4.31	5.45	7.43	9.95
3 300	0.52	0.93	1.46	2.09	3.17	4.25	5.36	7.32	9.80
3 350	0.51	0.92	1.44	2.06	3.12	4.19	5.28	7.21	9.66
3 400	0.50	0.91	1.42	2.03	3.07	4.12	5.21	7.10	9.52
3 450	0.49	0.89	1.40	2.00	3.03	4.06	5.13	7.00	9.38

Table 23(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
3 500	0.49	0.88	1.38	1.97	2.99	4.01	5.06	6.90	9.24
3 550	0.48	0.87	1.36	1.95	2.94	3.95	4.99	6.80	9.11
3 600	0.47	0.86	1.34	1.92	2.90	3.90	4.92	6.71	8.99
3 650	0.47	0.85	1.32	1.89	2.86	3.84	4.85	6.62	8.86
3 700	0.46	0.83	1.30	1.87	2.82	3.79	4.78	6.53	8.74
3 750	0.45	0.82	1.29	1.84	2.79	3.74	4.72	6.44	8.63
3 800	0.45	0.81	1.27	1.82	2.75	3.69	4.66	6.36	8.51
3 850	0.44	0.80	1.25	1.79	2.71	3.64	4.60	6.27	8.40
3 900	0.44	0.79	1.24	1.77	2.68	3.60	4.54	6.19	8.30
3 950	0.43	0.78	1.22	1.75	2.65	3.55	4.48	6.12	8.19
4 000	0.43	0.77	1.21	1.73	2.61	3.51	4.42	6.04	8.09
4 050	0.42	0.76	1.19	1.71	2.58	3.46	4.37	5.96	7.99
4 100	0.42	0.75	1.18	1.68	2.55	3.42	4.32	5.89	7.89
4 150	0.41	0.74	1.16	1.66	2.52	3.38	4.26	5.82	7.80
4 200	0.41	0.73	1.15	1.64	2.49	3.34	4.21	5.75	7.70
4 250	0.40	0.73	1.13	1.63	2.46	3.30	4.16	5.68	7.61
4 300	0.40	0.72	1.12	1.61	2.43	3.26	4.12	5.62	7.52
4 350	0.39	0.71	1.11	1.59	2.40	3.22	4.07	5.55	7.44
4 400	0.39	0.70	1.10	1.57	2.38	3.19	4.02	5.49	7.35
4 450	0.38	0.69	1.08	1.55	2.35	3.15	3.98	5.43	7.27
4 500	0.38	0.69	1.07	1.53	2.32	3.12	3.93	5.37	7.19
4 550	0.37	0.68	1.06	1.52	2.30	3.08	3.89	5.31	7.11
4 600	0.37	0.67	1.05	1.50	2.27	3.05	3.85	5.25	7.03
4 650	0.37	0.66	1.04	1.49	2.25	3.02	3.81	5.19	6.96
4 700	0.36	0.66	1.03	1.47	2.22	2.98	3.77	5.14	6.88
4 750	0.36	0.65	1.02	1.45	2.20	2.95	3.73	5.09	6.81
4 800	0.35	0.64	1.00	1.44	2.18	2.92	3.69	5.03	6.74
4 850	0.35	0.64	0.99	1.42	2.15	2.89	3.65	4.98	6.67
4 900	0.35	0.63	0.98	1.41	2.13	2.86	3.61	4.93	6.60
4 950	0.34	0.62	0.97	1.40	2.11	2.83	3.58	4.88	6.54
5 000	0.34	0.62	0.96	1.38	2.09	2.80	3.54	4.83	6.47
Maximum aspect ratio	7.3	6.8	6.5	6.3	5.9	4.9	4.3	3.8	3.3

Table 24Maximum Span for Annealed Glass Fixed on Two Opposite Sides, m (Clause 6.1.9)

Design Wind Pressure $N/m^2$ (1)	Nominal Thickness of Annealed Glass, Tmm
Design Wind Pressure $N/m^2$ (1)	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	0.53	0.73	0.92	1.12	1.40	1.77	2.11	2.68	3.36
550	0.51	0.69	0.88	1.07	1.33	1.69	2.02	2.56	3.20
600	0.48	0.66	0.84	1.02	1.27	1.62	1.93	2.45	3.07
650	0.46	0.64	0.81	0.98	1.22	1.56	1.85	2.35	2.95
700	0.45	0.61	0.78	0.95	1.18	1.50	1.79	2.26	2.84
750	0.43	0.59	0.75	0.91	1.14	1.45	1.73	2.19	2.74
800	0.42	0.57	0.73	0.88	1.10	1.40	1.67	2.12	2.66
850	0.41	0.56	0.71	0.86	1.07	1.36	1.62	2.06	2.58
900	0.40	0.54	0.69	0.83	1.04	1.32	1.58	2.00	2.50
950	0.38	0.53	0.67	0.81	1.01	1.29	1.53	1.94	2.44
1 000	0.37	0.51	0.65	0.79	0.99	1.25	1.49	1.89	2.38
1 050	0.37	0.50	0.64	0.77	0.96	1.22	1.46	1.85	2.32
1 100	0.36	0.49	0.62	0.75	0.94	1.20	1.43	1.81	2.26
1 150	0.35	0.48	0.61	0.74	0.92	1.17	1.39	1.77	2.22
1 200	0.34	0.47	0.60	0.72	0.90	1.15	1.36	1.73	2.17
1 250	0.34	0.46	0.58	0.71	0.88	1.12	1.34	1.69	2.12
1 300	0.33	0.45	0.57	0.69	0.87	1.10	1.31	1.66	2.08
1 350	0.32	0.44	0.56	0.68	0.85	1.08	1.29	1.63	2.04
1 400	0.32	0.43	0.55	0.67	0.83	1.06	1.26	1.60	2.01
1 450	0.31	0.43	0.54	0.66	0.82	1.04	1.24	1.57	1.97
1 500	0.31	0.42	0.53	0.65	0.81	1.02	1.22	1.55	1.94
1 550	0.30	0.41	0.52	0.64	0.79	1.01	1.20	1.52	1.91
1 600	0.30	0.41	0.52	0.63	0.78	0.99	1.18	1.50	1.88

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 24(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
1 650	0.29	0.40	0.51	0.62	0.77	0.98	1.16	1.48	1.85
1 700	0.29	0.39	0.50	0.61	0.76	0.96	1.15	1.45	1.82
1 750	0.28	0.39	0.49	0.60	0.75	0.95	1.13	1.43	1.80
1 800	0.28	0.38	0.49	0.59	0.74	0.93	1.11	1.41	1.77
1 850	0.28	0.38	0.48	0.58	0.73	0.92	1.10	1.39	1.75
1 900	0.27	0.37	0.47	0.57	0.72	0.91	1.08	1.37	1.72
1 950	0.27	0.37	0.47	0.57	0.71	0.90	1.07	1.36	1.70
2 000	0.27	0.36	0.46	0.56	0.70	0.89	1.06	1.34	1.68
2 050	0.26	0.36	0.46	0.55	0.69	0.88	1.04	1.32	1.66
2 100	0.26	0.35	0.45	0.55	0.68	0.87	1.03	1.31	1.64
2 150	0.26	0.35	0.44	0.54	0.67	0.86	1.02	1.29	1.62
2 200	0.25	0.35	0.44	0.53	0.67	0.85	1.01	1.28	1.60
2 250	0.25	0.34	0.43	0.53	0.66	0.84	1.00	1.26	1.58
2 300	0.25	0.34	0.43	0.52	0.65	0.83	0.99	1.25	1.57
2 350	0.24	0.34	0.43	0.52	0.64	0.82	0.97	1.24	1.55
2 400	0.24	0.33	0.42	0.51	0.64	0.81	0.96	1.22	1.53
2 450	0.24	0.33	0.42	0.51	0.63	0.80	0.95	1.21	1.52
2 500	0.24	0.32	0.41	0.50	0.62	0.79	0.95	1.20	1.50
2 550	0.23	0.32	0.41	0.50	0.62	0.79	0.94	1.19	1.49
2 600	0.23	0.32	0.40	0.49	0.61	0.78	0.93	1.18	1.47
2 650	0.23	0.32	0.40	0.49	0.61	0.77	0.92	1.16	1.46
2 700	0.23	0.31	0.40	0.48	0.60	0.76	0.91	1.15	1.45
2 750	0.23	0.31	0.39	0.48	0.60	0.76	0.90	1.14	1.43
2 800	0.22	0.31	0.39	0.47	0.59	0.75	0.89	1.13	1.42
2 850	0.22	0.30	0.39	0.47	0.58	0.74	0.89	1.12	1.41
2 900	0.22	0.30	0.38	0.46	0.58	0.74	0.88	1.11	1.39
2 950	0.22	0.30	0.38	0.46	0.57	0.73	0.87	1.10	1.38
3 000	0.22	0.30	0.38	0.46	0.57	0.72	0.86	1.09	1.37
3 050	0.21	0.29	0.37	0.45	0.57	0.72	0.86	1.09	1.36
3 100	0.21	0.29	0.37	0.45	0.56	0.71	0.85	1.08	1.35
3 150	0.21	0.29	0.37	0.45	0.56	0.71	0.84	1.07	1.34
3 200	0.21	0.29	0.36	0.44	0.55	0.70	0.84	1.06	1.33
3 250	0.21	0.28	0.36	0.44	0.55	0.70	0.83	1.05	1.32
3 300	0.21	0.28	0.36	0.44	0.54	0.69	0.82	1.04	1.31
3 350	0.20	0.28	0.36	0.43	0.54	0.69	0.82	1.04	1.30
3 400	0.20	0.28	0.35	0.43	0.54	0.68	0.81	1.03	1.29
3 450	0.20	0.28	0.35	0.43	0.53	0.68	0.80	1.02	1.28
3 500	0.20	0.27	0.35	0.42	0.53	0.67	0.80	1.01	1.27
3 550	0.20	0.27	0.35	0.42	0.52	0.67	0.79	1.01	1.26
3 600	0.20	0.27	0.34	0.42	0.52	0.66	0.79	1.00	1.25
3 650	0.20	0.27	0.34	0.41	0.52	0.66	0.78	0.99	1.24
3 700	0.19	0.27	0.34	0.41	0.51	0.65	0.78	0.99	1.23
3 750	0.19	0.27	0.34	0.41	0.51	0.65	0.77	0.98	1.23
3 800	0.19	0.26	0.33	0.41	0.51	0.64	0.77	0.97	1.22
3 850	0.19	0.26	0.33	0.40	0.50	0.64	0.76	0.97	1.21
3 900	0.19	0.26	0.33	0.40	0.50	0.64	0.76	0.96	1.20
3 950	0.19	0.26	0.33	0.40	0.50	0.63	0.75	0.95	1.20
4 000	0.19	0.26	0.33	0.40	0.49	0.63	0.75	0.95	1.19
4 050	0.19	0.26	0.32	0.39	0.49	0.62	0.74	0.94	1.18
4 100	0.19	0.25	0.32	0.39	0.49	0.62	0.74	0.94	1.17
4 150	0.18	0.25	0.32	0.39	0.48	0.62	0.73	0.93	1.17
4 200	0.18	0.25	0.32	0.39	0.48	0.61	0.73	0.92	1.16
4 250	0.18	0.25	0.32	0.38	0.48	0.61	0.72	0.92	1.15
4 300	0.18	0.25	0.31	0.38	0.48	0.60	0.72	0.91	1.15
4 350	0.18	0.25	0.31	0.38	0.47	0.60	0.72	0.91	1.14
4 400	0.18	0.24	0.31	0.38	0.47	0.60	0.71	0.90	1.13
4 450	0.18	0.24	0.31	0.38	0.47	0.59	0.71	0.90	1.13
4 500	0.18	0.24	0.31	0.37	0.47	0.59	0.70	0.89	1.12
4 550	0.18	0.24	0.31	0.37	0.46	0.59	0.70	0.89	1.11
4 600	0.17	0.24	0.30	0.37	0.46	0.58	0.70	0.88	1.11
4 650	0.17	0.24	0.30	0.37	0.46	0.58	0.69	0.88	1.10
4 700	0.17	0.24	0.30	0.36	0.46	0.58	0.69	0.87	1.10
4 750	0.17	0.24	0.30	0.36	0.45	0.58	0.69	0.87	1.09
4 800	0.17	0.23	0.30	0.36	0.45	0.57	0.68	0.86	1.08
4 850	0.17	0.23	0.30	0.36	0.45	0.57	0.68	0.86	1.08
4 900	0.17	0.23	0.29	0.36	0.45	0.57	0.68	0.86	1.07
4 950	0.17	0.23	0.29	0.36	0.44	0.56	0.67	0.85	1.07
5 000	0.17	0.23	0.29	0.35	0.44	0.56	0.67	0.85	1.06

Table 25Maximum Span for Laminated Glass Fixed on Two Opposite Sides, m (Clause 6.1.9)

Design Wind Pressure $N/m^2$ (1)	Nominal Thickness of Laminated Glass, T mm
Design Wind Pressure $N/m^2$ (1)	5.38(2)	6.38(3)	8.38(4)	10.38(5)	12.38(6)	16.38(7)
500	0.79	0.95	1.25	1.59	1.92	2.50
550	0.75	0.90	1.19	1.51	1.83	2.38
600	0.72	0.87	1.14	1.45	1.76	2.28
650	0.69	0.83	1.10	1.39	1.69	2.19
700	0.67	0.80	1.06	1.34	1.63	2.11
750	0.65	0.77	1.02	1.30	1.57	2.04
800	0.62	0.75	0.99	1.25	1.52	1.98
850	0.61	0.73	0.96	1.22	1.48	1.92
900	0.59	0.71	0.93	1.18	1.43	1.86
950	0.57	0.69	0.91	1.15	1.40	1.81
1 000	0.56	0.67	0.88	1.12	1.36	1.77
1 050	0.55	0.65	0.86	1.09	1.33	1.72
1 100	0.53	0.64	0.84	1.07	1.30	1.68
1 150	0.52	0.63	0.82	1.05	1.27	1.65
1 200	0.51	0.61	0.81	1.02	1.24	1.61
1 250	0.50	0.60	0.79	1.00	1.22	1.58
1 300	0.49	0.59	0.77	0.98	1.19	1.55
1 350	0.48	0.58	0.76	0.97	1.17	1.52
1 400	0.47	0.57	0.75	0.95	1.15	1.49
1 450	0.46	0.56	0.73	0.93	1.13	1.47
1 500	0.46	0.55	0.72	0.92	1.11	1.44
1 550	0.45	0.54	0.71	0.90	1.09	1.42
1 600	0.44	0.53	0.70	0.89	1.08	1.40
1 650	0.43	0.52	0.69	0.87	1.06	1.38
1 700	0.43	0.51	0.68	0.86	1.04	1.35
1 750	0.42	0.51	0.67	0.85	1.03	1.34
1 800	0.42	0.50	0.66	0.84	1.01	1.32
1 850	0.41	0.49	0.65	0.82	1.00	1.30
1 900	0.41	0.49	0.64	0.81	0.99	1.28
1 950	0.40	0.48	0.63	0.80	0.97	1.27
2 000	0.40	0.47	0.62	0.79	0.96	1.25
2 050	0.39	0.47	0.62	0.78	0.95	1.23
2 100	0.39	0.46	0.61	0.77	0.94	1.22
2 150	0.38	0.46	0.60	0.77	0.93	1.20
2 200	0.38	0.45	0.60	0.76	0.92	1.19
2 250	0.37	0.45	0.59	0.75	0.91	1.18
2 300	0.37	0.44	0.58	0.74	0.90	1.16
2 350	0.36	0.44	0.58	0.73	0.89	1.15
2 400	0.36	0.43	0.57	0.72	0.88	1.14
2 450	0.36	0.43	0.56	0.72	0.87	1.13
2 500	0.35	0.42	0.56	0.71	0.86	1.12
2 550	0.35	0.42	0.55	0.70	0.85	1.11
2 600	0.35	0.42	0.55	0.70	0.84	1.10

Table 25 — (Concluded)
(1)	(2)	(3)	(4)	(5)	(6)	(7)
2 650	0.34	0.41	0.54	0.69	0.84	1.09
2 700	0.34	0.41	0.54	0.68	0.83	1.08
2 750	0.34	0.40	0.53	0.68	0.82	1.07
2 800	0.33	0.40	0.53	0.67	0.81	1.06
2 850	0.33	0.40	0.52	0.66	0.81	1.05
2 900	0.33	0.39	0.52	0.66	0.80	1.04
2 950	0.33	0.39	0.51	0.65	0.79	1.03
3 000	0.32	0.39	0.51	0.65	0.79	1.02
3 050	0.32	0.38	0.51	0.64	0.78	1.01
3 100	0.32	0.38	0.50	0.64	0.77	1.00
3 150	0.31	0.38	0.50	0.63	0.77	1.00
3 200	0.31	0.37	0.49	0.63	0.76	0.99
3 250	0.31	0.37	0.49	0.62	0.75	0.98
3 300	0.31	0.37	0.49	0.62	0.75	0.97
3 350	0.31	0.37	0.48	0.61	0.74	0.97
3 400	0.30	0.36	0.48	0.61	0.74	0.96
3 450	0.30	0.36	0.48	0.60	0.73	0.95
3 500	0.30	0.36	0.47	0.60	0.73	0.94
3 550	0.30	0.36	0.47	0.60	0.72	0.94
3 600	0.29	0.35	0.47	0.59	0.72	0.93
3 650	0.29	0.35	0.46	0.59	0.71	0.92
3 700	0.29	0.35	0.46	0.58	0.71	0.92
3 750	0.29	0.35	0.46	0.58	0.70	0.91
3 800	0.29	0.34	0.45	0.58	0.70	0.91
3 850	0.28	0.34	0.45	0.57	0.69	0.90
3 900	0.28	0.34	0.45	0.57	0.69	0.89
3 950	0.28	0.34	0.44	0.56	0.68	0.89
4 000	0.28	0.34	0.44	0.56	0.68	0.88
4 050	0.28	0.33	0.44	0.56	0.68	0.88
4 100	0.28	0.33	0.44	0.55	0.67	0.87
4 150	0.27	0.33	0.43	0.55	0.67	0.87
4 200	0.27	0.33	0.43	0.55	0.66	0.86
4 250	0.27	0.33	0.43	0.54	0.66	0.86
4 300	0.27	0.32	0.43	0.54	0.66	0.85
4 350	0.27	0.32	0.42	0.54	0.65	0.85
4 400	0.27	0.32	0.42	0.53	0.65	0.84
4 450	0.26	0.32	0.42	0.53	0.65	0.84
4 500	0.26	0.32	0.42	0.53	0.64	0.83
4 550	0.26	0.31	0.41	0.53	0.64	0.83
4 600	0.26	0.31	0.41	0.52	0.63	0.82
4 650	0.26	0.31	0.41	0.52	0.63	0.82
4 700	0.26	0.31	0.41	0.52	0.63	0.81
4 750	0.26	0.31	0.41	0.51	0.62	0.81
4 800	0.26	0.31	0.40	0.51	0.62	0.81
4 850	0.25	0.30	0.40	0.51	0.62	0.80
4 900	0.25	0.30	0.40	0.51	0.61	0.80
4 950	0.25	0.30	0.40	0.50	0.61	0.79
5 000	0.25	0.30	0.40	0.50	0.61	0.79

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 26Maximum Span for Tempered Glass Fixed on Two Opposite Sides, m (Clause 6.1.9)

Design Wind Pressure $N/m^2$ (1)	Nominal Thickness of Tempered Glass, Tmm
Design Wind Pressure $N/m^2$ (1)	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	0.62	0.86	1.09	1.32	1.52	1.93	2.30	2.92	3.66
550	0.60	0.82	1.04	1.26	1.45	1.84	2.20	2.78	3.49
600	0.57	0.78	0.99	1.20	1.39	1.76	2.10	2.66	3.34
650	0.55	0.75	0.95	1.16	1.33	1.69	2.02	2.56	3.21
700	0.53	0.72	0.92	1.11	1.29	1.63	1.95	2.47	3.09
750	0.51	0.70	0.89	1.08	1.24	1.58	1.88	2.38	2.99
800	0.49	0.68	0.86	1.04	1.20	1.53	1.82	2.31	2.89
850	0.48	0.66	0.83	1.01	1.17	1.48	1.77	2.24	2.81
900	0.47	0.64	0.81	0.98	1.13	1.44	1.72	2.18	2.73
950	0.45	0.62	0.79	0.96	1.10	1.40	1.67	2.12	2.65
1 000	0.44	0.60	0.77	0.93	1.08	1.37	1.63	2.06	2.59
1 050	0.43	0.59	0.75	0.91	1.05	1.33	1.59	2.01	2.52
1 100	0.42	0.58	0.73	0.89	1.03	1.30	1.55	1.97	2.47
1 150	0.41	0.56	0.72	0.87	1.00	1.27	1.52	1.92	2.41
1 200	0.40	0.55	0.70	0.85	0.98	1.25	1.49	1.88	2.36
1 250	0.39	0.54	0.69	0.83	0.96	1.22	1.46	1.85	2.31
1 300	0.39	0.53	0.67	0.82	0.94	1.20	1.43	1.81	2.27
1 350	0.38	0.52	0.66	0.80	0.93	1.18	1.40	1.78	2.23
1 400	0.37	0.51	0.65	0.79	0.91	1.15	1.38	1.74	2.19
1 450	0.37	0.50	0.64	0.77	0.89	1.13	1.35	1.71	2.15
1 500	0.36	0.49	0.63	0.76	0.88	1.12	1.33	1.69	2.11
1 550	0.35	0.49	0.62	0.75	0.86	1.10	1.31	1.66	2.08
1 600	0.35	0.48	0.61	0.74	0.85	1.08	1.29	1.63	2.05
1 650	0.34	0.47	0.60	0.73	0.84	1.06	1.27	1.61	2.01
1 700	0.34	0.46	0.59	0.71	0.82	1.05	1.25	1.58	1.98
1 750	0.33	0.46	0.58	0.70	0.81	1.03	1.23	1.56	1.96
1 800	0.33	0.45	0.57	0.69	0.80	1.02	1.21	1.54	1.93
1 850	0.32	0.44	0.56	0.68	0.79	1.00	1.20	1.52	1.90
1 900	0.32	0.44	0.56	0.68	0.78	0.99	1.18	1.50	1.88
1 950	0.32	0.43	0.55	0.67	0.77	0.98	1.17	1.48	1.85
2 000	0.31	0.43	0.54	0.66	0.76	0.97	1.15	1.46	1.83
2 050	0.31	0.42	0.54	0.65	0.75	0.95	1.14	1.44	1.81
2 100	0.30	0.42	0.53	0.64	0.74	0.94	1.12	1.42	1.79
2 150	0.30	0.41	0.52	0.64	0.73	0.93	1.11	1.41	1.76
2 200	0.30	0.41	0.52	0.63	0.73	0.92	1.10	1.39	1.74
2 250	0.29	0.40	0.51	0.62	0.72	0.91	1.09	1.38	1.72
2 300	0.29	0.40	0.51	0.61	0.71	0.90	1.07	1.36	1.71
2 350	0.29	0.39	0.50	0.61	0.70	0.89	1.06	1.35	1.69
2 400	0.28	0.39	0.50	0.60	0.69	0.88	1.05	1.33	1.67
2 450	0.28	0.39	0.49	0.60	0.69	0.87	1.04	1.32	1.65
2 500	0.28	0.38	0.49	0.59	0.68	0.86	1.03	1.31	1.64
2 550	0.28	0.38	0.48	0.58	0.67	0.86	1.02	1.29	1.62
2 600	0.27	0.38	0.48	0.58	0.67	0.85	1.01	1.28	1.60
2 650	0.27	0.37	0.47	0.57	0.66	0.84	1.00	1.27	1.59
2 700	0.27	0.37	0.47	0.57	0.65	0.83	0.99	1.26	1.57
2 750	0.27	0.36	0.46	0.56	0.65	0.82	0.98	1.24	1.56
2 800	0.26	0.36	0.46	0.56	0.64	0.82	0.97	1.23	1.55
2 850	0.26	0.36	0.46	0.55	0.64	0.81	0.96	1.22	1.53
2 900	0.26	0.36	0.45	0.55	0.63	0.80	0.96	1.21	1.52
2 950	0.26	0.35	0.45	0.54	0.63	0.80	0.95	1.20	1.51
3 000	0.25	0.35	0.44	0.54	0.62	0.79	0.94	1.19	1.49
3 050	0.25	0.35	0.44	0.53	0.62	0.78	0.93	1.18	1.48
3 100	0.25	0.34	0.44	0.53	0.61	0.78	0.92	1.17	1.47
3 150	0.25	0.34	0.43	0.52	0.61	0.77	0.92	1.16	1.46
3 200	0.25	0.34	0.43	0.52	0.60	0.76	0.91	1.15	1.45
3 250	0.24	0.34	0.43	0.52	0.60	0.76	0.90	1.14	1.44
3 300	0.24	0.33	0.42	0.51	0.59	0.75	0.90	1.14	1.42
3 350	0.24	0.33	0.42	0.51	0.59	0.75	0.89	1.13	1.41
3 400	0.24	0.33	0.42	0.51	0.58	0.74	0.88	1.12	1.40
3 450	0.24	0.33	0.41	0.50	0.58	0.74	0.88	1.11	1.39
3 500	0.24	0.32	0.41	0.50	0.57	0.73	0.87	1.10	1.38

Table 26(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
3 550	0.23	0.32	0.41	0.49	0.57	0.73	0.86	1.10	1.37
3 600	0.23	0.32	0.40	0.49	0.57	0.72	0.86	1.09	1.36
3 650	0.23	0.32	0.40	0.49	0.56	0.72	0.85	1.08	1.35
3 700	0.23	0.31	0.40	0.48	0.56	0.71	0.85	1.07	1.34
3 750	0.23	0.31	0.40	0.48	0.56	0.71	0.84	1.07	1.34
3 800	0.23	0.31	0.39	0.48	0.55	0.70	0.84	1.06	1.33
3 850	0.22	0.31	0.39	0.47	0.55	0.70	0.83	1.05	1.32
3 900	0.22	0.31	0.39	0.47	0.54	0.69	0.82	1.05	1.31
3 950	0.22	0.30	0.39	0.47	0.54	0.69	0.82	1.04	1.30
4 000	0.22	0.30	0.38	0.47	0.54	0.68	0.81	1.03	1.29
4 050	0.22	0.30	0.38	0.46	0.53	0.68	0.81	1.03	1.29
4 100	0.22	0.30	0.38	0.46	0.53	0.67	0.80	1.02	1.28
4 150	0.22	0.30	0.38	0.46	0.53	0.67	0.80	1.01	1.27
4 200	0.22	0.30	0.37	0.45	0.52	0.67	0.79	1.01	1.26
4 250	0.21	0.29	0.37	0.45	0.52	0.66	0.79	1.00	1.25
4 300	0.21	0.29	0.37	0.45	0.52	0.66	0.79	1.00	1.25
4 350	0.21	0.29	0.37	0.45	0.52	0.66	0.78	0.99	1.24
4 400	0.21	0.29	0.37	0.44	0.51	0.65	0.78	0.98	1.23
4 450	0.21	0.29	0.36	0.44	0.51	0.65	0.77	0.98	1.23
4 500	0.21	0.29	0.36	0.44	0.51	0.64	0.77	0.97	1.22
4 550	0.21	0.28	0.36	0.44	0.50	0.64	0.76	0.97	1.21
4 600	0.21	0.28	0.36	0.43	0.50	0.64	0.76	0.96	1.21
4 650	0.20	0.28	0.36	0.43	0.50	0.63	0.75	0.96	1.20
4 700	0.20	0.28	0.35	0.43	0.50	0.63	0.75	0.95	1.19
4 750	0.20	0.28	0.35	0.43	0.49	0.63	0.75	0.95	1.19
4 800	0.20	0.28	0.35	0.43	0.49	0.62	0.74	0.94	1.18
4 850	0.20	0.27	0.35	0.42	0.49	0.62	0.74	0.94	1.17
4 900	0.20	0.27	0.35	0.42	0.49	0.62	0.74	0.93	1.17
4 950	0.20	0.27	0.35	0.42	0.48	0.61	0.73	0.93	1.16
5 000	0.20	0.27	0.34	0.42	0.48	0.61	0.73	0.92	1.16

Table 27Maximum Span for Heat Strengthened Glass Fixed on Two Opposite Sides, m (Clause 6.1.9)

Design Wind Pressure $N/m^2$ (1)	Nominal Thickness of Heat Strengthened Glass, T mm
Design Wind Pressure $N/m^2$ (1)	3(2)	4(3)	5(4)	6(5)	8(6)	10(7)	12(8)	15(9)	19(10)
500	0.50	0.68	0.87	1.05	1.22	1.55	1.84	2.34	2.93
550	0.48	0.65	0.83	1.00	1.16	1.47	1.76	2.23	2.79
600	0.46	0.62	0.79	0.96	1.11	1.41	1.68	2.13	2.67
650	0.44	0.60	0.76	0.92	1.07	1.36	1.62	2.05	2.57
700	0.42	0.58	0.73	0.89	1.03	1.31	1.56	1.97	2.47
750	0.41	0.56	0.71	0.86	0.99	1.26	1.50	1.91	2.39
800	0.39	0.54	0.69	0.83	0.96	1.22	1.46	1.85	2.31
850	0.38	0.52	0.67	0.81	0.93	1.19	1.41	1.79	2.24
900	0.37	0.51	0.65	0.79	0.91	1.15	1.37	1.74	2.18
950	0.36	0.50	0.63	0.76	0.88	1.12	1.34	1.69	2.12
1 000	0.35	0.48	0.61	0.75	0.86	1.09	1.30	1.65	2.07
1 050	0.34	0.47	0.60	0.73	0.84	1.07	1.27	1.61	2.02
1 100	0.34	0.46	0.59	0.71	0.82	1.04	1.24	1.57	1.97
1 150	0.33	0.45	0.57	0.69	0.80	1.02	1.21	1.54	1.93
1 200	0.32	0.44	0.56	0.68	0.79	1.00	1.19	1.51	1.89
1 250	0.32	0.43	0.55	0.67	0.77	0.98	1.16	1.48	1.85
1 300	0.31	0.42	0.54	0.65	0.75	0.96	1.14	1.45	1.82
1 350	0.30	0.42	0.53	0.64	0.74	0.94	1.12	1.42	1.78
1 400	0.30	0.41	0.52	0.63	0.73	0.92	1.10	1.40	1.75
1 450	0.29	0.40	0.51	0.62	0.71	0.91	1.08	1.37	1.72
1 500	0.29	0.40	0.50	0.61	0.70	0.89	1.06	1.35	1.69
1 550	0.28	0.39	0.49	0.60	0.69	0.88	1.05	1.33	1.66
1 600	0.28	0.38	0.49	0.59	0.68	0.86	1.03	1.31	1.64
1 650	0.27	0.38	0.48	0.58	0.67	0.85	1.01	1.29	1.61
1 700	0.27	0.37	0.47	0.57	0.66	0.84	1.00	1.27	1.59
1 750	0.27	0.37	0.46	0.56	0.65	0.83	0.98	1.25	1.56

PART 6 STRUCTURAL DESIGN — SECTION 8 GLASS AND GLAZING

Table 27(Concluded)

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
1 800	0.26	0.36	0.46	0.56	0.64	0.81	0.97	1.23	1.54
1 850	0.26	0.36	0.45	0.55	0.63	0.80	0.96	1.21	1.52
1 900	0.26	0.35	0.45	0.54	0.62	0.79	0.94	1.20	1.50
1 950	0.25	0.35	0.44	0.53	0.62	0.78	0.93	1.18	1.48
2 000	0.25	0.34	0.43	0.53	0.61	0.77	0.92	1.17	1.46
2 050	0.25	0.34	0.43	0.52	0.60	0.76	0.91	1.15	1.45
2 100	0.24	0.33	0.42	0.51	0.59	0.75	0.90	1.14	1.43
2 150	0.24	0.33	0.42	0.51	0.59	0.75	0.89	1.13	1.41
2 200	0.24	0.33	0.41	0.50	0.58	0.74	0.88	1.11	1.40
2 250	0.24	0.32	0.41	0.50	0.57	0.73	0.87	1.10	1.38
2 300	0.23	0.32	0.41	0.49	0.57	0.72	0.86	1.09	1.36
2 350	0.23	0.32	0.40	0.49	0.56	0.71	0.85	1.08	1.35
2 400	0.23	0.31	0.40	0.48	0.56	0.71	0.84	1.07	1.34
2 450	0.23	0.31	0.39	0.48	0.55	0.70	0.83	1.05	1.32
2 500	0.22	0.31	0.39	0.47	0.54	0.69	0.82	1.04	1.31
2 550	0.22	0.30	0.38	0.47	0.54	0.68	0.82	1.03	1.30
2 600	0.22	0.30	0.38	0.46	0.53	0.68	0.81	1.02	1.28
2 650	0.22	0.30	0.38	0.46	0.53	0.67	0.80	1.01	1.27
2 700	0.21	0.29	0.37	0.45	0.52	0.67	0.79	1.00	1.26
2 750	0.21	0.29	0.37	0.45	0.52	0.66	0.79	1.00	1.25
2 800	0.21	0.29	0.37	0.45	0.51	0.65	0.78	0.99	1.24
2 850	0.21	0.29	0.36	0.44	0.51	0.65	0.77	0.98	1.23
2 900	0.21	0.28	0.36	0.44	0.51	0.64	0.76	0.97	1.22
2 950	0.21	0.28	0.36	0.43	0.50	0.64	0.76	0.96	1.21
3 000	0.20	0.28	0.35	0.43	0.50	0.63	0.75	0.95	1.19
3 050	0.20	0.28	0.35	0.43	0.49	0.63	0.75	0.95	1.19
3 100	0.20	0.27	0.35	0.42	0.49	0.62	0.74	0.94	1.18
3 150	0.20	0.27	0.35	0.42	0.48	0.62	0.73	0.93	1.17
3 200	0.20	0.27	0.34	0.42	0.48	0.61	0.73	0.92	1.16
3 250	0.20	0.27	0.34	0.41	0.48	0.61	0.72	0.92	1.15
3 300	0.19	0.27	0.34	0.41	0.47	0.60	0.72	0.91	1.14
3 350	0.19	0.26	0.34	0.41	0.47	0.60	0.71	0.90	1.13
3 400	0.19	0.26	0.33	0.40	0.47	0.59	0.71	0.90	1.12
3 450	0.19	0.26	0.33	0.40	0.46	0.59	0.70	0.89	1.11
3 500	0.19	0.26	0.33	0.40	0.46	0.58	0.70	0.88	1.11
3 550	0.19	0.26	0.33	0.40	0.46	0.58	0.69	0.88	1.10
3 600	0.19	0.25	0.32	0.39	0.45	0.58	0.69	0.87	1.09
3 650	0.18	0.25	0.32	0.39	0.45	0.57	0.68	0.86	1.08
3 700	0.18	0.25	0.32	0.39	0.45	0.57	0.68	0.86	1.08
3 750	0.18	0.25	0.32	0.38	0.44	0.56	0.67	0.85	1.07
3 800	0.18	0.25	0.32	0.38	0.44	0.56	0.67	0.85	1.06
3 850	0.18	0.25	0.31	0.38	0.44	0.56	0.66	0.84	1.05
3 900	0.18	0.24	0.31	0.38	0.44	0.55	0.66	0.84	1.05
3 950	0.18	0.24	0.31	0.37	0.43	0.55	0.66	0.83	1.04
4 000	0.18	0.24	0.31	0.37	0.43	0.55	0.65	0.83	1.03
4 050	0.18	0.24	0.31	0.37	0.43	0.54	0.65	0.82	1.03
4 100	0.17	0.24	0.30	0.37	0.42	0.54	0.64	0.82	1.02
4 150	0.17	0.24	0.30	0.37	0.42	0.54	0.64	0.81	1.02
4 200	0.17	0.24	0.30	0.36	0.42	0.53	0.64	0.81	1.01
4 250	0.17	0.23	0.30	0.36	0.42	0.53	0.63	0.80	1.00
4 300	0.17	0.23	0.30	0.36	0.41	0.53	0.63	0.80	1.00
4 350	0.17	0.23	0.29	0.36	0.41	0.52	0.62	0.79	0.99
4 400	0.17	0.23	0.29	0.36	0.41	0.52	0.62	0.79	0.99
4 450	0.17	0.23	0.29	0.35	0.41	0.52	0.62	0.78	0.98
4 500	0.17	0.23	0.29	0.35	0.41	0.52	0.61	0.78	0.98
4 550	0.17	0.23	0.29	0.35	0.40	0.51	0.61	0.77	0.97
4 600	0.16	0.23	0.29	0.35	0.40	0.51	0.61	0.77	0.97
4 650	0.16	0.22	0.28	0.35	0.40	0.51	0.60	0.77	0.96
4 700	0.16	0.22	0.28	0.34	0.40	0.50	0.60	0.76	0.95
4 750	0.16	0.22	0.28	0.34	0.39	0.50	0.60	0.76	0.95
4 800	0.16	0.22	0.28	0.34	0.39	0.50	0.59	0.75	0.94
4 850	0.16	0.22	0.28	0.34	0.39	0.50	0.59	0.75	0.94
4 900	0.16	0.22	0.28	0.34	0.39	0.49	0.59	0.75	0.94
4 950	0.16	0.22	0.28	0.33	0.39	0.49	0.59	0.74	0.93
5 000	0.16	0.22	0.27	0.33	0.38	0.49	0.58	0.74	0.93

6.2.2 Site Working and Glass Machining Operation

6.2.3 Dimensional Requirement

The dimensions for edge clearance, edge cover, front and back clearance, rebate depth is selected in accordance with the requirements in 4.5.2.

6.2.4 Glazing Materials

6.2.4.1 Compatibility of materials

A glazing material shall be used only when compatible with contiguous materials, including the rebate surface finish, setting or location blocks, distance pieces and glass type are available.

6.2.4.2 Application of materials

The application of glazing materials shall be in accordance with relevant/available Indian Standard or manufacturer's recommendations.

6.2.4.3 Life expectancy of materials

A glazing material shall only be used where its life expectancy (durability) has been established. The manufacturers' advice/guarantee should be sought for information regarding life expectancy.

6.1 Determination of Appropriate Glass Thickness

6.1.1 General

6.1.2 Design Considerations

6.1.3 Empirical Relationship

6.1.3.1 Glass supported on two opposite sides

6.1.4 Determination of Design Wind Pressure

6.1.4.1 Laminated/tempered/insulating glass

6.1.5 Aspect Ratio ( AR{max}AR\{max\}AR{max} )

6.1.6 Seismic Design

6.1.6.1 Seismic load (EQ)

6.1.6.2 Non-structural elements

6.1.6.3 Design seismic force

6.1.6.4 Seismic relative displacement

6.1.7 Imposed Loads

6.1.8 Load Contribution

6.1.8.1 Wind load

6.1.8.2 Dead load

6.1.9 Reference Chart Relating Wind Load, Maximum Allowable Area for a Thickness of Glass with respect to Terrain Category

6.2.2 Site Working and Glass Machining Operation

6.2.3 Dimensional Requirement

6.2.4 Glazing Materials

6.2.4.1 Compatibility of materials

6.2.4.2 Application of materials

6.2.4.3 Life expectancy of materials

6.2.8 Rebates and Grooves for Installation

6.2.9 Glazing Beads

6.1 Determination of Appropriate Glass Thickness

6.1.1 General

6.1.2 Design Considerations

6.1.3 Empirical Relationship

6.1.3.1 Glass supported on two opposite sides

6.1.4 Determination of Design Wind Pressure

6.1.4.1 Laminated/tempered/insulating glass

6.1.5 Aspect Ratio ( AR{max}AR\{max\}AR{max} )

6.1.6 Seismic Design

6.1.6.1 Seismic load (EQ)

6.1.6.2 Non-structural elements

6.1.6.3 Design seismic force

6.1.6.4 Seismic relative displacement

6.1.7 Imposed Loads

6.1.8 Load Contribution

6.1.8.1 Wind load

6.1.8.2 Dead load

6.1.9 Reference Chart Relating Wind Load, Maximum Allowable Area for a Thickness of Glass with respect to Terrain Category

6.2.2 Site Working and Glass Machining Operation

6.2.3 Dimensional Requirement

6.2.4 Glazing Materials

6.2.4.1 Compatibility of materials

6.2.4.2 Application of materials

6.2.4.3 Life expectancy of materials

6.2.8 Rebates and Grooves for Installation

6.2.9 Glazing Beads

6.1.5 Aspect Ratio ( $AR\{max\}$ )

6.1.5 Aspect Ratio ( $AR\{max\}$ )