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Three-bar truss ABC sec figure is constructed at steel pipes having a cross-sectional area A 3500 mm2 and a modulus of elasticity E 210 GPa Member BC is of length L 2 5 m and the angle

Three-bar truss ABC (sec figure) is constructed at steel pipes having a cross-sectional area A = 3500 mm2 and a modulus of elasticity E = 210 GPa. Member BC is of length L = 2.5 m. and the angle between members AC and AB is known to be 60°. Member AC length is b = 0.7 I L. Loads P = 185 kN and 2P = 370 kN act vertically and horizontally at joint C as shown. Joints A and B are pinned supports. (Use the law of sines and law of cosines

May 19 2020 View more View Less

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