中国妇女活动中心酒店采用软钢和粘滞阻尼器减震控制分析
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摘要
针对北京中国妇女活动中心酒店这一高烈度区特别不规则结构,研究了高层不规则结构减震理论,提出了采用软钢阻尼器和粘滞阻尼器两种消能减震装置,对该结构在无控和有控制后在地震作用下的动力响应和控制效果进行研究。文中,通过建立结构的力学模型,首先分析了结构的动力特性;然后,分别从能量、变形和力三个方面对比了无控结构及安装了软钢阻尼器和粘滞阻尼器的结构在多遇地震以及罕遇地震作用下的动力响应。结果表明:在较宽的地震波频带内,两种阻尼器对于控制这一不规则结构的扭转效应,提高该结构的整体抗震性能均有较好的减震效果。相对粘滞流体阻尼器而言,软钢阻尼器控制结构水平加速度效果较好;而粘滞流体阻尼器在控制结构水平位移性能稍好。
Aseismic analysis of China Women Activity Center Hotel in Beijing,which is one special non-regular out-of-codes high-rise building in high earthquake intensity zone,is performed in this paper.The dynamic response of the uncontrolled structure and controlled structure with metallic dampers and viscous dampers are investigated.In this study,the analytic model of the structure is firstly established.Then,the dynamic response of the uncontrolled structure and controlled structure are investigated under the excitation of earthquake from three aspects of energy,displacement and force.The analysis result indicates that in a wide vibration frequency range,the rotaion displacement of the structure is significantly reduced with the installtion of metallic damper and viscous damper.And the metallic damper is better in controlling the horizontal accelaration response,viscous damper is prior in controlling the horizontal displacement.
Aseismic analysis of China Women Activity Center Hotel in Beijing,which is one special non-regular out-of-codes high-rise building in high earthquake intensity zone,is performed in this paper.The dynamic response of the uncontrolled structure and controlled structure with metallic dampers and viscous dampers are investigated.In this study,the analytic model of the structure is firstly established.Then,the dynamic response of the uncontrolled structure and controlled structure are investigated under the excitation of earthquake from three aspects of energy,displacement and force.The analysis result indicates that in a wide vibration frequency range,the rotaion displacement of the structure is significantly reduced with the installtion of metallic damper and viscous damper.And the metallic damper is better in controlling the horizontal accelaration response,viscous damper is prior in controlling the horizontal displacement.
引文
[1]周云.金属耗能减震结构设计[M].武汉:武汉理工大学出版社2006
[2]周云.粘滞阻尼减震结构设计[M].武汉:武汉理工大学出版社2006
[3]朱春福等.软钢阻尼器在钢框架中减震效果分析[J].低温建筑技术2005.6
[4]金来建等.中国妇女活动中心二期工程南区酒店结构设计[J].四川建筑科学研究,2005.6
[5]Chia-Ming Uang,Betreo Vitelmo V.Use of Energy as a Design Criteri-on in Earthquake-resistant Design[R].Report No.UCB/EERC-88/18.Earthquake Engineering Research Center,University of California,Berkeley,1998
[6]郭仕群.使用偏心支撑减小不规则高层建筑的扭转振动反应[J].地震工程与工程振动,2005,25
[7]郑久建,魏琏.多高层建筑采用黏滞阻尼器减震结构的扭转分析[J].工程抗震,2004,2
[8]李忠献,万家,姜忻良.高层建筑结构扭转耦合地震反应阻尼器控制试验研[J].振动工程学报,1999,12
[2]周云.粘滞阻尼减震结构设计[M].武汉:武汉理工大学出版社2006
[3]朱春福等.软钢阻尼器在钢框架中减震效果分析[J].低温建筑技术2005.6
[4]金来建等.中国妇女活动中心二期工程南区酒店结构设计[J].四川建筑科学研究,2005.6
[5]Chia-Ming Uang,Betreo Vitelmo V.Use of Energy as a Design Criteri-on in Earthquake-resistant Design[R].Report No.UCB/EERC-88/18.Earthquake Engineering Research Center,University of California,Berkeley,1998
[6]郭仕群.使用偏心支撑减小不规则高层建筑的扭转振动反应[J].地震工程与工程振动,2005,25
[7]郑久建,魏琏.多高层建筑采用黏滞阻尼器减震结构的扭转分析[J].工程抗震,2004,2
[8]李忠献,万家,姜忻良.高层建筑结构扭转耦合地震反应阻尼器控制试验研[J].振动工程学报,1999,12
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