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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Time-Dependent Section Analysis of Prestressed Concrete Beams
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Abstract:This paper presents a method to determine the time-dependent deflections in post-tensioned concrete beams. At this preliminary stage of the investigation an analytical model is presented to describe the time-dependent stress, strain and curvature at a prestressed concrete beam section considering
concrete shrinkage and creep. Computation of prestress loss and the stress distribution in concrete, prestressed and non-prestressed steel due to time-dependent effects of creep and shrinkage is
presented. The analysis is divided into several stages according to the load history and time. A Flow chart is included for implementing the method by a computer program. A numerical example is presented to illustrate the proposed method and a limited investigation into the effect of creep, shrinkage and load history on predicted curvatures.
Concrete Institute of Australia, International Partner Access.
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