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4. Steel members AB and AC have Cross-section with the dimensions shown the rectangular 29.0 X 103 ksi; ơys 50 ksi. a) Determine which member (AC or AB) is a candidate 1.5 in. С 1.5 in. for buckling: and then determine the maximum load P th e frame can support such that buckling does not 2.5 in occur with respect to the y-axis, nor with respect to the z-axis. Treat the end conditions as pinned at both ends for y-axis buckling and fixed at both ends for z-axis buckling. 1.5 in. 30 (b) Determine the stress in member AC when the force P is applied to the frame. Use your value for P from part (a). 10 ft (c) Determine the stress in member AB when the force P is applied to the frame. Use your value for P from part (a) b h3 12 For a rectangular cross-secto

Answer 1

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(Buckling About a So Take Bsth ente as pin TEI le (Given in Proble m le L 12 Le = loft lox12 = 120 inches [120] 43メ ニ13975.5 lbf = 3140 Newtons -了 max= 1.812 kN ⓑ dess in the Ber m (89 em beY f8c fBc fecこ3.625 kN 4.3 K3 Area 2.5x1.5 O stess in The Mem bey