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Nonlinear Geometric, Material and Time Dependent Analysis of Reinforced Concrete Shells with Edge Beams

机译：边梁钢筋混凝土壳的非线性几何，材料和时间相关性分析

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摘要

A numerical method of analysis has been developed for the analysis of 3D reinforced concrete frames, shells with or without edge beams through their elastic, inelastic and ultimate load ranges. Nonlinearities as a result of tensile cracking, nonlinear behavior of concrete in compression, yielding of the steel reinforcement, geometric nonlinearities as a result of finite displacement; and the time dependent effects of creep and shrinkage are included in the analysis. A finite element displacement formulation coupled with a time step integration solution is used. The iterative scheme is based upon double step method with the constant imposed displacement constraint. A series of numerical examples consisting of beams, columns, slabs and shells with or without edge members are analysed and compared with the available theoretical and experimental results to demonstrate the applicability and the validity of the present method of analysis.

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