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kN 75. A cantilever beam of length l width b and depth d is loaded with a concentrated vertical load at the tip. If yielding starts at a load P, the collapse load shall be
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- 2.0 P
- 1.5 P
- 1.2 P
- P
Correct Option: B
| Shape factor = | ie, | |||
| Me | Elastic moment |
= 1.5 for rectangular.
Ultimate load = yield point × shape factor yield point = P
∴ ultimate load = P ×1.5 = 1.5 P
