Bracing is a crucial element in timber-framed structures, designed to withstand wind pressure and transfer lateral loads to the foundation. The effectiveness of bracing relies on factors like diaphragm depth, wind classification, and the structure's dimensions.
Bracing is a crucial element in timber-framed structures, designed to withstand wind pressure and transfer lateral loads to the foundation. The effectiveness of bracing relies on factors like diaphragm depth, wind classification, and the structure's dimensions.
Bracing is a crucial element in timber-framed structures, designed to withstand wind pressure and transfer lateral loads to the foundation. The effectiveness of bracing relies on factors like diaphragm depth, wind classification, and the structure's dimensions.
Ceiling and floor diaphragms act as horizontal structures to transfer wind loads to bracing walls, which then transmit forces to the floor structure.
Wind Classification: Determine wind classification (N1 to N6) based on AS 4055 Table 2. Racking Force: Calculate racking force using either Method A (area of elevation) or Method B (simplified) from Appendix G.
Method B (Simplified): Determine gable or hip width and roof pitch from tables G1 to G4. Example calculation provided. Method A (Area of Elevation): Calculate the area of elevation and refer to Tables 8.1 to 8.5 for pressure. Example calculation provided.
Structural wall bracing involves purpose-fitted bracing such as sheet, cross-timber, or steel bracing. Specific capacity for each meter length provided in Table 8.18. Example calculation to determine the running meters of bracing required.
Nominal wall bracing involves framing lined with sheet materials. The strength of nominal braces depends on the fixing method and materials used. Example provided for calculating nominal bracing distribution.
Understanding wind load calculation, especially in compliance with AS 1684.2 Section 8, is essential for ensuring the structural integrity of timber-framed buildings. Proper bracing design and distribution play a critical role in safeguarding structures against wind forces.