沈阳工业大学学报2012，Vol.34Issue(2)：224-230,7.
矩形钢管混凝土柱力学性能非线性有限元分析
Nonlinear finite element analysis on mechanical behavior of concrete-filled rectangular steel tubular column
摘要
Abstract
In order to study the mechanical behavior of concrete-filled rectangular steel tubular columns, an unit mode with eight degrees of freedom （DOF） and three nodes, applicable to any kind of sectional shape, was proposed based on the past experimental and theoritical researches. In combination with the constitutive relation between concrete and steel, a nonlinear finite element model was established, and was used for the calculation analysis on force schemes with monotonic and repeated loading. The concrete-filled rectangular steel tubular specimens under various force modes such as pure bending, concentric compression, eccentric compression and low-cycle repeated loads were calculated. It is found through comparison that the calculated results are consistent with the experimental ones. It proves that the proposed nonlinear finite analysis method can better simulate the force and deformation behaviors of concrete-filled rectangular steel tubular.关键词
矩形钢管混凝土/非线性分析/自由度/本构关系/有限元/截面/广义应力/广义应变Key words
concrete-filled rectangular steel tube/nonlinear analysis/degree of freedom/constitutive relation/finite element/section/generalized stress/generalized strain分类
建筑与水利引用本文复制引用
卢明奇,杨庆山..矩形钢管混凝土柱力学性能非线性有限元分析[J].沈阳工业大学学报,2012,34(2):224-230,7.基金项目
国家自然科学基金青年科学基金资助项目 （）
中央高校基本科研业务费专项基金资助项目（2009JBM060）. （）
