A reinforced concrete beam has b = 400mm and d = 600mm. The beam is simply supported on a clear span of 6m and loaded with a uniform service dead load of 50 kN/m and a service live load of 75kN/m. The concrete strength f ’c = 27.6 MPa. The provisions of 2015 National Structural Code of the Philippines applicable to this problem are: ●Design strength provided by a member shall be taken as the nominal strength multiplied by astrength reduction factor, = 0.75.The nominal shear strength provided by concrete for members subject to shear and flexure only shallbe computed as:Vc = 0.17 √f'cbwd,where √√f' is in MPa1.Calculate the factored uniform load, in kN/m.2. Compute the factored shear at the critical section due to the factored load.3. Find the nominal shear, in kN, that has to be provided by the web reinforcement at the criticalsection for shear.

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Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A reinforced concrete beam has b = 400mm and d = 600mm. The beam is simply supported on a clear span of 6m and loaded with a uniform service dead load of 50 kN/m and a service live load of 75kN/m. The concrete strength f ’c = 27.6 MPa. The provisions of 2015 National Structural Code of the Philippines applicable to this problem are:

●
Design strength provided by a member shall be taken as the nominal strength multiplied by a
strength reduction factor, = 0.75
.
The nominal shear strength provided by concrete for members subject to shear and flexure only shall
be computed as:
Vc = 0.17 √f'cbwd,
where √√f' is in MPa
1.
Calculate the factored uniform load, in kN/m.
2. Compute the factored shear at the critical section due to the factored load.
3. Find the nominal shear, in kN, that has to be provided by the web reinforcement at the critical
section for shear.

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