A concrete beam of rectangular cross-section of size 120mm (width) and 200mm (depth) is prestressed by a straight tendon to an effective force of 150kN at an eccentricity of 20mm (below the centroidal axis in the depth direction). The stresses at the top and bottom fibres of the section are

A concrete beam of rectangular cross-section of size 120mm (width) and 200mm (depth) is prestressed by a straight tendon to an effective force of 150kN at an eccentricity of 20mm (below the centroidal axis in the depth direction). The stresses at the top and bottom fibres of the section are

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

Mechanics of Solids

It is the study of the behavior of solid materials, their characteristics under various circumstances such as variation in external forces, temperature, and other internal factors. It is one of most important study in the field of engineering science, especially chemistry and mechanical engineering. In rigid body, the idealization of the solid body in which deformation is neglected. Deformation is known as the force acting on the solid state system which exerts change in its shape of the body but it continues to be at rest or in a uniform motion but it cannot accelerate. But those solid systems do have elasticity, compressibility and can be bent. This field is very vast since there are wide range of materials around us.

Question

A concrete beam of rectangular
cross-section of size 120mm (width)
and 200mm (depth) is prestressed by
a straight tendon to an effective force
of 150kN at an eccentricity of 20mm
(below the centroidal axis in the depth
direction). The stresses at the top and
bottom fibres of the section are

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