A. Calculate the stress in the concrete at the top and bottom extreme fibers under a positive bending moment of 78 kip, in psi (neglect steel reinforcement) B. If f'c= 3200 psi and normal weight of concrete is used, does cracking occurs? What is the maximum uniformly distributed load the beam can carry if it is used as a simple beam with a 26 ft span without exceeding the modulus of rupture of the concrete, in lb/ft? 250 mm 80 mm 130 mm 80 mm 80 mm

A. Calculate the stress in the concrete at the top and bottom extreme fibers under a positive bending moment of 78 kip, in psi (neglect steel reinforcement) B. If f'c= 3200 psi and normal weight of concrete is used, does cracking occurs? What is the maximum uniformly distributed load the beam can carry if it is used as a simple beam with a 26 ft span without exceeding the modulus of rupture of the concrete, in lb/ft? 250 mm 80 mm 130 mm 80 mm 80 mm

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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Question

A. Calculate the stress in the concrete at the top and bottom extreme fibers under a
positive bending moment of 78 kip, in psi (neglect steel reinforcement)
B. If fc= 3200 psi and normal weight of concrete is used, does cracking occurs? What
is the maximum uniformly distributed load the beam can carry if it is used as a
simple beam with a 26 ft span without exceeding the modulus of rupture of the
concrete, in lb/ft?
250 mm
80 mm
130 mm
80 mm
80 mm

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