Question: Solve Prob. 4.115, assuming that the hinge at B has been removed and that the hinge at A can exert an axial thrust, as well

Solve Prob. 4.115, assuming that the hinge at B has been removed and that the hinge at A can exert an axial thrust, as well as couples about axes parallel to the x and y axes.

PROBLEM 4.115

The horizontal platform ABCD weighs 60 lb and supports a 240-lb load at its center. The platform is normally held in position by hinges at A and B and by braces CE and DE. If brace DE is removed, determine the reactions at the hinges and the force exerted by the remaining brace CE. The hinge at A does not exert any axial thrust.

Solve Prob. 4.115, assuming that the hinge at B has

2 ft 300 1b 4 ft

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