A beam is made up of two identical bars AB and BC, by hinging them together at B. The end A is built-in (cantilevered) and the end C is simply supported. With the load P acting as shown, the bending moment at A is
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The total length of the beam is $2L$. Taking moments about C, we have: $R_A \times 2L = P \times L/2$ $R_A = P/4$ Show more…
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