粘弹性消能结构的抗震设计反应谱及其工程应用  

ANTI-SEISMIC DESIGN RESPONSE SPRECTRA AND APPLICATION TO ENGINEERING STRUCTURES WITH VISCO-ELASTIC DAMPERS

作　　者：常业军[1] 张富有[2] 苏毅[2] 程文瀼[2] 

机构地区：[1]盐城市土木建筑学会,盐城224005 [2]东南大学土木工程学院,南京210096

出　　处：《振动与冲击》2006年第3期54-57,共4页Journal of Vibration and Shock

基　　金：江苏省抗震办科研项目[苏建计(2005)327号]

摘　　要：探讨了结构阻尼比、刚度的变化对地震反应的影响,研究表明,阻尼增加对结构的动力反应有明显的减小效果,刚度增加虽能有效地控制结构的位移反应,但不能有效地抑制结构的加速度反应;在总结分析已有研究成果的基础上,结合抗震规范,给出了安装粘弹性阻尼器后结构的抗震设计反应谱;最后,阐述了粘弹性消能结构的减震设计方法和步骤,给出了实际工程结构安装粘弹性阻尼器后的地震反应计算结果,计算表明,层间位移和加速度反应较原结构减小明显。Effects of varying damping ratio and stiffness of engineering structures on their seismic responses are studied.The results indicate that increasing damping can effectively reduce structural dynamic responses;enhancing stiffness can contrlo structural displacement respose,but it can not suppress structural acceleration response.Based on the research results having been obtained and combined with the anti-seismic criteria,the anti-seismic design response spectra of engineering structures with visco-elastic dampers are given out.The anti-seismic design of visco-elastic dampers and the corresponding procdures are presented,the simulations for the seismic response of the real structures with visco-elastic dampers are given and they show that the story displacements and accelerations of the stractare with visco-elastic dampers are smaller obviously than those without dampers.

关 键 词：工程结构 粘弹性阻尼器 减震 抗震设计反应谱 

分 类 号：TU352.1[建筑科学—结构工程]