钢框架结构软钢阻尼器振动控制的试验及理论研究  

Experimental and theoretical study on vibration control of steel frame attached with hysteretic dampers

作　　者：李玉顺[1] 大井谦一[2] 沈世钊[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090 [2]东京大学生产技术研究所

出　　处：《建筑结构学报》2004年第2期1-7,14,共8页Journal of Building Structures

摘　　要：本文通过试验研究和理论分析探讨极低屈服点软钢阻尼器的减震效果。对建造在野外的三层钢框架结构输入该结构在历年地震观测中采集到的地震波记录进行了拟动力试验。本次拟动力试验选用了4条地震波记录,各分为有阻尼器和无阻尼器的两种情况共计进行了8次试验。试验结果表明软钢阻尼器具有明显的减震效果。并采用能够同时考虑应变硬化和刚度退化现象的SkeletonShift模型模拟阻尼器的恢复力特性,对该结构进行了弹塑性地震反应分析。地震观测、拟动力试验以及计算机分析结果所表现出的各地震反应具有较好的一致性,说明拟动力试验技术应用于模拟结构的地震反应,可得到令人满意的结果。An experimental and theoretical study of the earthquake mitigation effect of hysteretic dampers using ultra low yield point steel was presented in this paper. The monitoring and pseudo tests were based on a scale 3 story steel frame that was constructed on the real ground. Pseudo dynamic tests using various earthquake inputs were recorded by the sensor set in the site. Eight tests with and without hysteretic dampers used four earthquake records. The case studies offered great insight into the significant effect of the hysteretic dampers. The inelastic earthquake response analysis was based on Skeleton Shift model which took the strain hardening and stiffness degradation into consideration. The comparison of response history results with monitoring, numerical analysis and pseudo dynamic tests agrees with each other fairly well. It is also demonstrated that the pseudo dynamic test technique provides a satisfactory simulation of real structural response to earthquake ground motion.

关 键 词：钢框架结构 软钢阻尼器 振动控制 拟动力试验 地震观测 地震波 

分 类 号：TU391[建筑科学—结构工程] TU352.11