A New Simplified Model for Nonlinear RC Slabs Analysis
A New Simplified Model for Nonlinear RC Slabs Analysis
复制标题
非线性 RC 板分析的新简化模型
DOI：
10.14359/491
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发表时间：
1997
影响因子：
1.8
通讯作者：
D. Yankelevsky
中科院分区：
文献类型：
--
作者：
Michael Reitman;D. Yankelevsky
开发了一种在各种加载程序下对钢筋混凝土（RC）板进行非线性分析的新技术。该技术基于代表板的网格的非线性有限元 (FE) 分析。代表性网格的原始公式可以为网格轴的最粗网格提供良好的表示质量。使用了复杂载荷下 RC 框架的精细非线性有限元模型。该模型基于空间各向异性梁有限元的新修改以及复杂荷载历史下混凝土和钢筋混凝土的细化本构模型。所开发的简化方法能够预测各种 RC 板在单调和复杂载荷（包括卸载和重新加载分支）下直至失效的非线性行为。
A new technique for nonlinear analysis of reinforced concrete (RC) slabs under various loading programs is developed. The technique is based on nonlinear finite element (FE) analysis of a grid representing the slab. An original formulation for the representative grid allows a good quality of the representation for the most coarse mesh of the grid axes. A refined non-linear FE model of a RC frame under complex loading was used. The model is based on a new modification of spatial anisotropic beam finite element and refined constitutive models of concrete and steel-in-concrete under complex loading history. The developed simplified method is capable of predicting nonlinear behavior up to the failure for various RC slabs subjected to monotonic and complex loading (including unloading and reloading branches).