112. Determine the cross-sectional areas of members AG, BC, and CE for the truss shown in Fig. P-112. The stresses are not to exceed 20 ksi in tension or 14 ksi in compression. A reduced stress in compression is specified to reduce the danger of buckling. Ans. AAG 1.17 in.2; ABC = 5.15 in.2; ACE = 1.43 in. ft 4 ft B 6 ft G 4 ft 40 kips 6 ft F 4 ft 25 kips 6 ft E Figure P-112
112. Determine the cross-sectional areas of members AG, BC, and CE for the truss shown in Fig. P-112. The stresses are not to exceed 20 ksi in tension or 14 ksi in compression. A reduced stress in compression is specified to reduce the danger of buckling. Ans. AAG 1.17 in.2; ABC = 5.15 in.2; ACE = 1.43 in. ft 4 ft B 6 ft G 4 ft 40 kips 6 ft F 4 ft 25 kips 6 ft E Figure P-112
Chapter4: Plane And Space Trusses
Section: Chapter Questions
Problem 32P
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answer the following problems using method of joints and method of section separately in solving for the unknown forces and indicate if the forces/stresses are in tension or compression. Provide each solutions with a proper discussion and illustration.
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