2182 D - Timber Framing Code

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2182 D - Timber Framing Code Wall Bracing
Class Exercise 2
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Use Bracing Type G Method B (p 144)
3
22.910
8.150
180
1.275m
2.700m
N3
Using the Plan previous information from Roof
and Wall framing Calculations fill in the above
information
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Use Bracing Type G Method B (p 144)
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Side elevation (Wind direction
1) Area m2 Wind Pressure KPa
(table 8.2 p 118) Total Racking
Force KN Nominal Bracing KN Bracing
Required KN
61.7
0.95
58.6
28.1
30.5
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End elevation (Wind direction
2) Area m2 Wind Pressure kPa
(table 8.1 p 116) Total Racking
Force KN Nominal Bracing KN Bracing
Required KN
17
1.4
23.8
Too Much 18 gt 50
11.9
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NOTE 8.3.6.6 Location and distribution of
bracing Bracing shall be approximately evenly
distributed and shall be provided in both
directions (see Figure 8.5). Bracing shall
initially be placed in external walls and where
possible at the corners of the building.
Refer page 148 of 1684.2 (2006)
8.3.6.7 Spacing of bracing walls in single
storey or upper storey of two storey
For wind classifications greater than N2, spacing
shall be in accordance with Table 8.20 and
Table 8.21 for the relevant wind classification,
ceiling depth and roof pitch. NOTE Ceiling
depth is measured parallel to the wind direction
being considered.
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Refer page 150 of 1684.2 (2006)
Wind Speed
Ceiling Width
Roof Pitch
Spacing of Bracing
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Select Bracing Bracing Type h Method B (p
144) Method B 6.0 KN/m x 1.2m (sheet width)
1 Sheet 7.2KN
Braces need to be at every corner and also at
9.000m maximum Spacings to Wind Direction 1
Mark braces on floor plan. Note 900mm minimum
width for ply brace
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Mark Plan for Required Bracing
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Exercise 2 Completed