Numerical Analysis for Drying Creep Behavior of Self-Compacting Concrete

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Abstract:

Drying creep of self-compacting concrete (SCC) has two different sources: microcracking and stress-induced shrinkage. Based on theory for pore water and microcracking theory of concrete, the model for drying creep caused by constant stress is derived from rheological equations. The proposed model is coupled with FEM analysis by recursive calculation, so that the creep caused by changing load can be calculated without considering stress history. Verification of the model is conducted through comparison with experimental result and Bazant’s empirical model. The comparing results validate the model for drying creep of SCC.

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2112-2119

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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