Structural Engineering and Mechanics

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Time-dependent analysis of reinforced concrete structures using the layered finite element method

  • Bradford, M.A. (School of Civil & Environmental Engineering, The University of New South Wales) ;
  • Gilbert, R.I. (School of Civil & Environmental Engineering, The University of New South Wales) ;
  • Sun, S.C.H. (SMEC)
  • Published : 1999.12.25
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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.

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References

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