Question 2 Timber Tension Member Design The 140mm X 45mm Mgp10 Truss Bottom Chord Tension Member Shown In Figure 1 Is Pa 1 (26.22 KiB) Viewed 35 times
Question 2 Timber Tension Member Design The 140mm X 45mm Mgp10 Truss Bottom Chord Tension Member Shown In Figure 1 Is Pa 2 (32.34 KiB) Viewed 35 times
QUESTION 2-Timber Tension Member Design The 140mm x 45mm MGP10 truss bottom chord tension member shown in Figure 1 is part of a roof truss in a classroom in Adelaide SA. The length of the member is 2.7m with 4M10 bolts in rows of two connecting each end. The diameter of the bolt holes are 11mm. The member is subject to the following (unfactored) tensile loads: ● Permanent actions G = 3.5KN . Imposed actions (construction loads) Qconst = 2.5KN
. Ultimate wind actions (downwards) Wu= 10kN giving tension in the bottom chord Calculate the tensile capacity (Ne) of the bottom chord member in accordance with AS 1720.1-2010 and check against each of the three loading combinations below. (a) Permanent actions 1.35G (b) 5 day loading (construction loading) 1.2G+1.5Q (c) Ultimate wind actions (downwards) 1.2G+ Wu 2.7m Figure 1-Roof truss
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