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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 analysis of prestressed concrete cross-sections: Creep and shrinkage prestressing lasses, and the influence of passive reinforcement
Author(s): Murcia Vela, J.
Appears on pages(s): 85 - 96
Abstract:This paper studies the time-dependent behaviour due to creep and shrinkage of prestressed concrete cross-sections, in a simple hut accurate way. The analysis is an extension of a previous work for non-cracked reinforced concrete cross-sections. It focuses mainly on the evaluation of the creep and shrinkage prestressing losses. One conclusion is that passive reinforcement has a certain significance for such losses. However. normally, this tactor is not taken into account in their calculation: specially for compression reinforcement. which tends to increase these losses. The present analysis includes this factor in an inherent way and finally leads to several formulae for the losses: one more accurate and other two simplified. Results from the proposed formulae are compared with those derived from another well-known formulae for different reinforcement ratios.
ACI International Partner, ACHE Spain, International Partner Access.
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