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Question

For the frame shown below, the fixed end moment developed at support A isPLk.
The value of k (correct upto one decimal place) is_____.


  1. 12

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Solution

The correct option is A 12

kDA=4EI2L=2EIL

kDB=3(2EI)L=6EIL

kDC=4EIL

MA=PL2⎢ ⎢ ⎢2EIL2EIL+6EIL+4EIL⎥ ⎥ ⎥

=PL12

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