论文部分内容阅读
利用ANSYS软件,采用非线性有限元分析评估和优化膝形支撑冷弯型钢(CFS)剪力墙的抗震性能。考虑了:材料非线性、几何缺陷、残余应力和孔洞的影响。通过试验验证了数值模型。数值结果与试验结果的吻合显示出有限元分析可以有效地计算膝形支撑CFS剪力墙极限承载力。共建立了12个不同长度的膝形构件模型。除了合理评估地震响应修正系数外,还特别关注试件的最大侧向承载力和变形。初步结论包括膝形支撑CFS剪力墙抗震性能的优化和相应的尺寸及构造。
Using ANSYS software, the nonlinear finite element analysis was used to evaluate and optimize the seismic performance of knee-supported cold-formed steel (CFS) shear walls. Consider: material nonlinearities, geometric imperfections, residual stress and hole effects. The numerical model is verified through experiments. The numerical results agree well with the experimental results and show that the finite element analysis can effectively calculate the ultimate bearing capacity of the CFS shear wall with knee support. A total of 12 knee-length member models were established. In addition to a reasonable assessment of seismic response correction factor, but also pay special attention to the specimen maximum lateral bearing capacity and deformation. The preliminary conclusions include the optimization of the seismic performance of the CFS shear wall with knee support and its corresponding size and structure.