Multiple choice

T-section of a beam is formed by gluing wooden planks as shown in the figure below. If this beam transmits a constant vertical shear force of 3000 K, the glue at any of the four joints will be subjected to a shear force (in kN per meter length) of

  1. 3.0

  2. 4.0

  3. 8.0

  4. 10.7
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 End A allows the only axial deformation which is negligible in case of buckling for long column and at end B when$K_T$ approaches infinity,it will behave as fixed end.So, both the ends behave as fixed ends.$$P_{cr}=4\frac{\pi ^2 EI}{I^2}\therefore\alpha=4.00$$

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