Civil Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 38)
38.
A simply supported beam carrying a uniformly distributed load over its whole span, is propped at the centre of the span so that the beam is held to the level of the end supports. The reaction of the prop will be
half the distributed load
3/8th the distributed load
5/8th the distributed load
distributed load.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 2 of 2.

HASIM ANSARY said:   8 years ago
Superb @Amro.

Mahesh said:   8 years ago
Superb explanation, thanks @Amro.

Amro said:   9 years ago
The beam held to the level of end means deflection equals to zero @ med span.

Deflection from distributed load = 5wl^4/384EI (EQ: 1).

Deflection from PROP load = PL^3/48EI (EQ: 2).

From eq1 & eq2.

5wl^4/384EI = PL^3/48EI.

P = 5wl/8.
(5)


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