【摘要】 本文进一步发展了不需存贮结构刚度矩阵和求解非线性方程组的伪动力有限元法以应用于钢筋混凝土剪力墙结构的非线性静力分析，文中对钢筋混凝土材料采用Vecchio和Collins的非线性弹性抹平旋转裂缝模型，几何非线性采用Green应变公式计算，用平面应力三角形单元离散剪力墙结构，时间积分采用显示中心差分格式，数值计算表明，本文方法有效可靠．更多还原

【Abstract】 An improved pseudo - transient finite element method without the storing of the stiffness matrix of structures and the solving of the nonlinear equations is developed for the nonlinear static analysis of RC shear walls in this paper. A smeared rotating crack model by Vecchio and Collins is employed for the materials of RC shear walls. The geometric nonlinearity is taken into account by means of Green’s strain formula. A finite element idealization with triangluar element is used for space discretization. An explicit central difference time-marching sheme is employed for time integration of the resulting discrete ordinary differential equation. Results of 2 numerical examples presented show that the method is of reliability and efficlency.更多还原