论文部分内容阅读
在研究黏滞阻尼器减震短肢剪力墙结构抗震设计方法的基础上,对黏滞阻尼器的安装位置和传统计算方法进行总结和改进,提出按照阻尼力与楼层剪力呈正比的方式分配阻尼系数的方法,并采用渐进法的思想实现对结构所需附加阻尼比更为精确的计算。结合工程设计实例,通过方案对比,对普通剪力墙结构、短肢剪力墙结构、短肢剪力墙+黏滞阻尼器结构建立有限元模型进行时程分析,证实黏滞阻尼器在短肢剪力墙结构中能够发挥较好的耗能作用,使结构构件基本处于弹性变形的安全状态,弥补了短肢剪力墙结构自身存在的缺点,使建筑的经济性得到保障。并通过振动台模拟破坏试验,进一步验证黏滞阻尼器在高层短肢剪力墙结构中的良好减震效果。
Based on the research on the seismic design method of viscous dampers for short-leg shear wall structures, the installation position and the traditional calculation methods of viscous dampers are summarized and improved. According to the method that the damping force is proportional to the floor shear force The method of distributing the damping coefficient is adopted, and the idea of asymptotic method is used to realize more accurate calculation of the required additional damping ratio of the structure. Combined with the engineering design example, the finite element model of ordinary shear wall structure, short-limb shear wall structure, short-limb shear wall + viscous damper structure is established by time-history analysis through program comparison, and it is proved that the viscous damper is short Shear wall structure can play a better role in energy consumption, so that the basic structural components in a safe state of elastic deformation, to make up for the short-leg shear wall structure of their own shortcomings, the economy of the building be protected. Through the shaking table simulation damage test, the viscous damper in the high-rise short-leg shear wall structure to further verify the good damping effect.