大剪跨比带缝剪力墙非线性分析.PDFVIP

24 2 Vol. 24 No. 2 2007 6 June 2007 * 1 1 1 2 刘元珍 李珠 张泽平 芦建军 ( 11 030024; 21 , 100045) ( 11Department of Civil Engineering,Taiyuan University of Technology, 030024, China; 21Beijing General Municipal Engineering Design and Research Institute, 100045) [ ] 提出一种新型保温承重结构体系) 免拆保温墙模带缝剪力墙体系运用有限元分析程序AN- SYS 对该体系大剪跨比带缝剪力墙进行非线性分析通过建立合理的力学模型, 分析了大剪跨比带缝 剪力墙在水平荷载作用下的破坏模式骨架曲线及刚度退化等方面的特点和规律同时建立传统剪力 墙模型, 通过比较分析了两种剪力墙的抗震性能分析结果表明开缝可以改变墙体的破坏形态, 降低构 件的刚度, 增大其变形能力, 提高构件的延性, 从而实现抗震结构控制的目的本文研究成果可以为带 缝剪力墙的工作性能评价和安全设计提供理论依据 n [ ] 保温带缝剪力墙 大剪跨比 非线性 抗震性能 结构控制 c ABSTRACT: A kind of new structure- slitted shear wall structure with heat preservation formwork was introduced. . The finite element analysis software ANSYS was used to analyze the non-linear characteristics of the high shear-span ratio slitted shear wall . Based on the reasonable mechanics models ,the characteristics of the new structure were ana- g lyzed ,including the failure mode ,skeleton curve and the stiff ness degradation. The slitted shear wall were compared with shear wall structure on the seismic behavior . The results showed that the slits could aff ect the break mode ,and 库 r moderate structural stiffness and earthquake reaction. In addition ,the slits could improve the deformation capability o and enhance the ductility property