【摘要】 我国地震区的高层建筑结构一般都要布置复杂的钢筋混凝土剪力墙,如何有效模拟这些复杂墙体的力学性能就成为高层结构弹塑性分析的关键。该文在两元件墙单元模型的基础上提出了一种空间墙非线性分析模型,该模型考虑了墙体的轴向、弯曲和剪切弹塑性变形,并能合理考虑墙-墙、梁-墙交界处结点的位移协调。与试验结果对比分析表明,该文建立的墙单元模型具有自由度少和计算稳定等特点,可用于钢筋混凝土剪力墙结构的初步设计或整体性能评价,为复杂墙体弹塑性分析提供了可行的方法。更多还原

【Abstract】 Complex reinforced concrete shear walls are usually used in tall buildings,especially in China seismic regions.How to simulate the mechanical behaviors of these walls is important to elastic-plastic analysis for tall buildings.Based on two-spring model,a nonlinear model for spatial walls is proposed.In this model,the axial,bending and shear plastic deformation of the walls can be considered,while the deformation coordination of the node connected the wall-wall and beam-wall is also considered.To validate the proposed model,comparison is made between analytical and experimental load-displacement responses under cyclic loadings.The analysis is in good agreement with experimental results and show that the model proposed in this paper has less degrees of freedom and higher accuracy.This model offers a feasible analysis method which is fit for the stages of primary design and entire performance evaluation of complex reinforced concrete shear walls.更多还原