- Question 2 The Roof Truss Of A Fast Food Outlet In Bunbury Western Australia Is Shown In Figure 2c The Truss Is Made F 1 (97.1 KiB) Viewed 28 times
QUESTION 2 The roof truss of a fast-food outlet in Bunbury, Western Australia is shown in Figure 2C. The truss is made from Seasoned Kapur of Grade F34. The bottom chord of the truss has a cross-section of 290x45mm. For design against bending, the bottom chord of the truss can be assumed to carry a uniformly distributed load over a simply supported design span of 12m. The diagonal and vertical locations on the bottom chord can be considered to be lateral restraints acting on the top edge of the bottom chord. For design, the bottom chord can be assumed to bend in isolation and not linked to bottom chords in adjacent trusses that are at 5m distances on either side of the truss under consideration. Use the following unfactored loads on the bottom chord to determine your design action effects: (a) Permanent action due to gravity loads = 5kN/m and (b) Wind uplift (reversal) = 6kN/m. Check if the bottom chord has sufficient capacity in bending. 6@2m=12m Figure 2C 25 points Save Answer