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A pre-stressed rectangular beam which carries two concentrated loads W at...

This question belongs to Civil Engineering RCC Structures Design
RCC Structures Design
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A pre-stressed rectangular beam which carries two concentrated loads W at $$\frac{{\text{L}}}{3}$$ from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is

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Correct Answer: Option C
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2 Comments
Abhishek Raj
Abhishek Raj 6 years ago
Reaction Ra = W.

Reaction Rb = W.

Bending Moment at Center of the Beam = [W * (L/3 + L/6) ]-[W* (L/6) ].

= WL/3.

Now Moment due to prestressing force = P*h (h= maximum dip).

Dip required => P*h = WL/3.

Therefore h = WL/3P.
Sudhir Patel
Sudhir Patel 8 years ago
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