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Computers and Concrete Volume 2, Number 6, December 2005 , pages 455-479 DOI: https://doi.org/10.12989/cac.2005.2.6.455 |
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Nonlinear finite element analysis of reinforced concrete structures subjected to transient thermal loads |
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C. E. Zhou and F. J. Vecchio
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| Abstract | ||
| This paper describes a 2D nonlinear finite element analysis (NLFEA) platform that combines heat flow analysis with realistic analysis of cracked reinforced concrete structures. The behavior models included in the structural analysis are mainly based on the Modified Compression Field Theory and the Distributed Stress Field Model. The heat flow analysis takes into account time-varying thermal loads and temperature-dependent material properties. The capability of 2D nonlinear transient thermal analysis is then implemented into a nonlinear finite element analysis program VecTor2?for 2D reinforced concrete membranes. Analyses of four numerical examples are performed using VecTor2, and results obtained indicate that the suggested nonlinear finite element analysis procedure is capable of modeling the complete response of a concrete structure to thermal and mechanical loads. | ||
| Key Words | ||
| nonlinear finite element analysis; structural analysis; heat flow analysis; transient thermal loads; closed-form element stiffness. | ||
| Address | ||
| Department of Civil Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada | ||