【摘要】 根据新型粘弹性-摩擦阻尼器(Viscoelastic-friction damper,简称VFD)的耗能特点和加层结构动力特性,提出通过对加层结构设置VFD,达到对加层结构抗震加固的目的;设计制作了一个5层钢框架模型,在其顶层薄弱层设置VFD,进行了罕遇地震和多遇地震下的振动台试验。试验结果表明,VFD支撑能够有效地控制结构的地震反应。更多还原

【Abstract】 To overcome some problems in seismically buildings which have weak layers at the top,the Viscoelastic-friction damper is equipped with the build,based on the energy consumption characteristic of new VFD.A model of five-storey steel frame which have weak layers at the top is designed and equipped with the VFD at weak layers.Shaking table tests simulating the minute and disastrous earthquakes are conducted,and the experiment objects are pure steel frame model with a weak floor,only added with steel brace and added with VFD.The results of tests indicate that the VFDs are effective in attenuating seismic response of frame model.更多还原