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
(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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