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本文在应用多垂直杆单元的基础上 ,提出了一种能反应剪切刚度随垂直杆拉压刚度变化的简化模型 ,这一模型与实际结构受力更加符合。该模型可直接用于小开洞剪力墙的分析 ,结合分段变刚度单元 ,分析了大、小开洞剪力墙的非线性地震反应。最后 ,提出了一个算例 ,并与试验结果比较 ,表明该模型具有较好的计算精度
In this paper, based on the application of multi-vertical rod elements, a simplified model that can reflect the variation of shear stiffness with the vertical rod tension and compression stiffness is proposed, which is more in line with the actual structure. The model can be directly applied to the analysis of shear walls with small openings. Combined with the variable stiffness elements of the sections, the nonlinear seismic response of shear walls with large and small openings is analyzed. Finally, an example is given and compared with the experimental results, indicating that the model has better calculation accuracy