A council intends to build a fire station in Geelong, Victoria. Figure 2b shows the timber frame of the fire station. Th

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A Council Intends To Build A Fire Station In Geelong Victoria Figure 2b Shows The Timber Frame Of The Fire Station Th 1 (187.5 KiB) Viewed 34 times

A council intends to build a fire station in Geelong, Victoria. Figure 2b shows the timber frame of the fire station. The diagonals in the main truss are 5m long, have a cross-section of 190x45mm and are seasoned softwood of grade F11. The connection at the ends of the diagonals is through two (2) M12 bolts in 14mm diameter holes. The 2 bolts at each end are located at a cross-section perpendicular to the longitudinal axis of the diagonals. Structural analysis of the frame, using structural engineering software, shows that the following unfactored axial tensile loads are present in the critical diagonals: a permanent load of 30kN and an imposed action due to people of 40kN considered as "loads of 5 months duration" due to frequent use of the roof area for storage. It can be assumed that short-term (s), long-term (₁) and combination factors (c) are equal to zero. Determine if the diagonals are suitable to carry the applied loads (22 Marks). The factor k6 is one of the factors required in timber design. Briefly explain its importance in relation to timber construction in different locations around Australia. List one industrial application where k6 may need to be applied regardless of the location of the timber structure (4 Marks). Figure 2b