The percentage loss of prestress due to anchorage slip of 4 mm in a prestressed concrete beam of length 40 m which is post-tensioned by a tendon subjected to an initial stress of 1200 N/mm2 and modulus of elasticity of steel equal to 2 x 105 MPa, is %.

The percentage loss of prestress due to anchorage slip of 4 mm in a prestressed concrete beam of length 40 m which is post-tensioned by a tendon subjected to an initial stress of 1200 N/mm2 and modulus of elasticity of steel equal to 2 x 105 MPa, is %.

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

Crack Detection

Concrete materials are meant for supporting structures, building foundations and they act as several load-bearing structures. Over time, due to environmental conditions, and based on the constituent materials used, concrete materials are subjected to a great degree of distress. Corrosion of the reinforcement bars due to chemical influences, uneven base, earthquake, drying shrinkages, and alkali-aggregate reactions are some of the reasons for concrete distress.

Question

The percentage loss of prestress due to anchorage slip of 4 mm in a prestressed concrete
beam of length 40 m which is post-tensioned by a tendon subjected to an initial stress of
1200 N/mm2 and modulus of elasticity of steel equal to 2 x 105 MPa, is
%.

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