A reinforced concrete beam is subjected to w=70 kN/m load as shown below. Knowing the modulus of elasticity of 25 GPa for the concrete and 200GPa for the steel with a diameter bar of 16 mm, W kN/m A B L = 4m (a) UDL on Concrete beam 450 mm (b) Section a-a 250 mm diameter 50 mm

A reinforced concrete beam is subjected to w=70 kN/m load as shown below. Knowing the modulus of elasticity of 25 GPa for the concrete and 200GPa for the steel with a diameter bar of 16 mm, W kN/m A B L = 4m (a) UDL on Concrete beam 450 mm (b) Section a-a 250 mm diameter 50 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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Concept explainers

Composite Construction

Composite construction is the construction of structures in which two or more materials are used. Regarding structural engineering, composite construction is a construction where two materials are bound together in a technical manner such that both the materials act as a single unit to carry and transfer the load. The motives of composite construction are to increase the structural strength, make structures more aesthetic, and provide a sustainable environment.

Question

A reinforced concrete beam is subjected to w=70 kN/m load as shown below. Knowing the modulus of elasticity of 25 GPa for the concrete and 200GPa
for the steel with a diameter bar of 16 mm,
W kN/m
A
B
L = 4m
(a) UDL on Concrete beam
450 mm
(b) Section a-a
250 mm
diameter
50 mm

a)
Determine the maximum bending moment
kNm
b)
Determine the stress in the steel
MPa
Determine the maximum stress in the concrete.
oc
MPa

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