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Structural Engineering and Mechanics Volume 8, Number 6, December 1999 , pages 561-578 DOI: https://doi.org/10.12989/sem.1999.8.6.561 |
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Time-dependent analysis of reinforced concrete structures using the layered finite element method |
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Bradford MA, Gilbert RI, Sun SCH
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| Abstract | ||
| The response of a reinforced concrete structure to loading is both immediate and time-dependent. Under a sustained load, the deflections caused by creep and shrinkage may be several times their instantaneous values. The paper describes a general finite element procedure, based on the so-called layered model, to analyse reinforced concrete members, and shows in particular how the simple Step by Step Method may be incorporated into this procedure. By invoking the Modified Newton Raphson Method as a solution procedure, the accuracy of the finite element method is verified against independent test results, and then applied to a variety of problems in order to demonstrate its efficacy. The method forms a general method for analysing highly indeterminate concrete structures in the time domain. | ||
| Key Words | ||
| reinforced concrete, creep, finite elements, layered method, shrinkage, Step by Step Method, time effects | ||
| Address | ||
| Bradford MA, Univ New S Wales, Sch Civil & Environm Engn, Sydney, NSW 2052, Australia Univ New S Wales, Sch Civil & Environm Engn, Sydney, NSW 2052, Australia SMEC, N Sydney, NSW 2060, Australia | ||