A length of pipe is supported by the small frame as shown. The pipe length suppo

Question

A length of pipe is supported by the small frame as shown. The pipe length support ed by this frame weigh s 600 lb . The frame is pin - connected at B . Pinned s upports are used at A and C . The cable supporting th e pipe is connected at D and E as shown. Find the reactions at support A . Hint: You will need to break the sections A D B and B E C apart to find one of the reactions

A length of pipe is supported by the small frame as shown. The pipe length supported by this frame weigh s 600 lb . The frame is pin - connected at B . Pinned s supports are used at A and C . The cable supporting the pipe is connected at D and E as shown. Find the reactions at support A . Hint: You will need to break the sections A D B and B E C apart to find one of the reactions

Explanation / Answer

Balancing moments about C,

W*(10/2) = Ay*10

600*5 = Ay*10

Ay = 300 lb

From FBD of pipe, let te tension in string = T.

W = T*sin30 + T*sin30

600 = T*sin30 + T*sin30

T = 600 lb

From FBD of ADB, balancing moments about B,

Ax*10cos30 - Ay*10sin30 + T*5 = 0

Ax*10cos30 - 300*10sin30 + 600*5 = 0

Ax = -173.2 lb

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