黏弹性阻尼墙减震钢框架结构振动台试验研究  

Shaking table test of steel frame with added viscoelastic damping wall

作　　者：许俊红[1] 李爱群[1,2] 

机构地区：[1]东南大学土木工程学院,江苏南京210096 [2]北京建筑大学,北京100044

出　　处：《建筑结构学报》2015年第12期19-26,共8页Journal of Building Structures

基　　金：国家科技支撑计划课题(2006BAJ03A04);国家自然科学基金项目(51278104)

摘　　要：为研究黏弹性阻尼墙对钢框架结构的减震效果,对安装有黏弹性阻尼墙减震构件的1∶3缩尺4层钢框架进行了振动台试验和有限元分析。研究结果表明:黏弹性阻尼墙提供的刚度和阻尼提高了结构的前3阶自振频率,结构每层最大加速度和层间位移得到了较好地控制;在El Centro波作用下,黏弹性阻尼墙的5种组合模式对位移的控制效果较对加速度控制效果稍差,其中各层均布置黏弹性阻尼墙对钢框架的位移、加速度控制效果最好;有限元分析结果和试验结果吻合良好。In order to investigate the control effect and dissipation property of viscoelastic damping wall（ VDW）,tests and simulation using a one-third scale four-story steel frames with VDW on the shaking table were conducted. The test and analytical results show that the stiffness and damping supplied by VDW increase the top three natural frequencies of the frame. The maximum acceleration and inter-story drift for each floor are well controlled. Under El Centro wave,to the five layout of VDW,control effects of acceleration are superior to displacement. The control effect of installing viscoelastic damping wall at each story is the best. A good agreement of simulation results by FEA and test results is showed.

关 键 词：钢框架 黏弹性阻尼墙 布置形式 振动台试验 有限元分析 减震效果 

分 类 号：TU393[建筑科学—结构工程] TU317.1