钢筋混凝土剪力墙多垂直杆非线性单元模型的改进及其应用

The Improved Parallel Multi-component Model for the Nonlinear Seismic Response Analysis of RC Walls and Its Application

本文对多垂直杆剪力墙非线性单元模型的几个重要问题如剪切变形的考虑方法、单元刚度矩阵的形式、垂直拉压杆的轴向刚度及剪力墙水平剪切刚度的恢复力模型等进行了探讨与改进。最后给出了一个算例,并与试验结果比较,表明多垂直杆剪力墙非线性单元模型具有较好的计算精度。

In this paper, some important problems in the parallel multi component model of reinforced concrete structural walls are discussed in details with some improvements suggested. The problems include the calculation method of considering the shear deformation, the derivation process of the element stiffness matrix, and the hysteretic characteristics of shear stiffness and axial stiffness of the vertical elements, etc. Finally, an example was calculated and compared with test results, which shows that the model test has relatively good accuracy.