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2182 D - Timber Framing Code Wall Bracing Class Exercise 2. Wind Direction 2. Wind Direction 1. Floor Plan Class Exercise 2. Use Bracing Type ‘G’ Method B (p 144). Permanent Wind Bracing. Length of Building Width of Building Roof Pitch Rise of Roof
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2182 D - Timber Framing Code Wall Bracing Class Exercise 2
Wind Direction 2 Wind Direction 1 Floor Plan Class Exercise 2 Use Bracing Type ‘G’ Method B (p 144)
Permanent Wind Bracing Length of Building Width of Building Roof Pitch Rise of Roof Floor to ceiling height Wind Classification 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
Wind Direction 2 Wind Direction 1 Floor Plan Class Exercise 2 Use Bracing Type ‘G’ Method B (p 144)
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
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 > 50% 11.9
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.
Refer page 150 of 1684.2 (2006) Wind Speed Ceiling Width Roof Pitch Spacing of Bracing
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
Wind Direction 2 Wind Direction 1 Floor Plan Class Exercise 2 Mark Plan for Required Bracing