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Q: The figure illustrates a number of beam sections. Use an allowable bending stress of 1.2 kpsi for wood and 12 kpsi for steel and find

The figure illustrates a number of beam sections. Use an allowable bending stress of 1.2 kpsi for wood and 12 kpsi for steel and find the maximum safe uniformly distributed load that each beam can carry if the given lengths are between simple supports.
(a) Wood joist 1 ½ by 9 ½ in and 12 ft long
(b) Steel tube, 2 in OD by 3/8 -in wall thickness, 48 in long
(c) Hollow steel tube 3 by 2 in, outside dimensions, formed from 3/16 -in material and welded, 48 in long
(d) Steel angles 3 X 3 X ¼ in and 72 in long
(e) A 5.4-lb, 4-in steel channel, 72 in long
(f) A 4-in .1-in steel bar, 72 in long

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wlc 81 8 a 1 1212 144 in I 1121595 1072 in 812001072 475144 Mmax W omax W 8I cl 104 lbfin Ans ... View full answer

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