论文部分内容阅读
采用T.L列式分层有限元法对钢筋混凝土板进行了材料与几何非线性分析。退化厚壳单元用于对结构沿厚度分层离散化。混凝土的材料特性沿厚度分层指定,而钢筋则用单向强度与刚度性质各向异性的、厚度等价的钢层描述。为了合理地模拟混凝土的压缩性态,分别应用了理想塑性及应变硬化模式。同时考虑了用应力与应变表示的屈服与压碎双重准则。
Using T. L column layered finite element method for the reinforced concrete slab material and geometric nonlinear analysis. Degraded thick shell elements are used to discretize the structure along the thickness. The material properties of concrete are specified along the thickness of the stratification, while the reinforcement is characterized by one-way strength and stiffness anisotropy, the thickness of the steel layer described. In order to reasonably simulate the compressive behavior of concrete, the ideal plasticity and strain hardening modes are applied respectively. At the same time, the dual principle of yield and crushing, which is expressed by stress and strain, is considered.