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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 simplysupported. With the load P acting as shown, the bending moment at A is
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- Zero
- PL/2
- 3PL/2
- Indeterminate
Correct Option: B
Consider Bar BC
∑Mc = 0
P(L/2) = RBV(L)
RBV = P/Z
Now, moment at A
| MA = BVXL = | ||
| 2 |
