消能减震技术在结构抗震加固改造中的应用
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摘要
为了使消能减震技术能更好地应用于实际加固工程中,该文归纳总结了国内外常用的消能减震装置的类型及其工作原理,简要介绍了传统抗震技术和消能减震技术的区别,详细介绍了黏滞阻尼器的力学理论及计算方法。通过SAP2000进行数值仿真,并结合工程实际进行了加固设计,阐述了消能减震加固设计的一般流程,对比分析了结构加固前和加固后的工况。结果表明,采用消能减震技术加固后,有效地降低了结构的地震响应,达到了国家抗震规范要求。
In order to make energy dissipation technology apply to the actual reinforcement project better.In this paper,the common type of energy dissipation devices and working principle at home and abroad are summarized.The difference between traditional seismic technology and energy dissipation technology is briefly introduced.The mechanics theory and calculation method of viscous damper are described in detail.By adopting Sap2000,and according to practical engineering,the general process of energy dissipation design is expounded,and the conditions of structural before and after reinforcement are compared.The analysis results prove that earthquake response of structure is effectively reduced on adopting energy dissipation technology,and so the engineering reaches the requirements of the seismic code.
In order to make energy dissipation technology apply to the actual reinforcement project better.In this paper,the common type of energy dissipation devices and working principle at home and abroad are summarized.The difference between traditional seismic technology and energy dissipation technology is briefly introduced.The mechanics theory and calculation method of viscous damper are described in detail.By adopting Sap2000,and according to practical engineering,the general process of energy dissipation design is expounded,and the conditions of structural before and after reinforcement are compared.The analysis results prove that earthquake response of structure is effectively reduced on adopting energy dissipation technology,and so the engineering reaches the requirements of the seismic code.
引文
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[2]翁大根,吕西林.消能减震结构设计参数研究与试验[J].地震工程与工程振动,2004,24(2):150-157(Weng Dagen,Lu Xilin.Study on design parameters ofenergy dissipation structures with experiment verification[J].Journal of Earthquake Engineering and EngineeringVibration,2004,24(2):150-157(in Chinese))
[3]麻建锁,张涛,王元清,等.钢筋混凝土框架顶部钢结构加层的抗震性能分析[J].地震工程与工程振动,2006,26(3):119-120(Ma Jiansuo,Zhang Tao,WangYuanqing,et al.Analysis of seismic resistance of integralstructure after adding steel storey on top of concrete frame[J].Journal of Earthquake Engineering and EngineeringVibration,2006,26(3):119-120(in Chinese))
[4]刘昱,高小旺,张涛.基于SAP2000的轻钢加层结构的抗震性能分析[J].工程抗震与加固改造,2008,30(6):100-104(Liu Yu,Gao Xiaowang,Zhang Tao.Analysis ofseismic performance of the storey adding structures of lightweight steel based on SAP2000[J].Earthquake ResistantEngineering and Retrofitting,2008,30(6):100-104(inChinese))
[5]周云,徐彤,俞公骅,等.耗能减震技术研究及应用的新进展[J].地震工程与工程振动,1999,19(2):122-130(Zhou Yun,Xu Tong,Yu Gonghua,et al.Recentadvance in research development and applications ofseismic energy dissipation[J].Journal of EarthquakeEngineering and Engineering Vibration,1999,19(2):122-130(in Chinese))
[6]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
[7]周云.摩擦耗能减震结构设计[M].武汉:武汉理工大学出版社,2006
[8]周云.黏弹性阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006
[9]韩雪,史有涛.消能减震技术在大型体育场馆中应用的研究[J].工程抗震与加固改造,2006,28(6):57-60(Han Xue,Shi Youtao.Research on the application ofenergy dissipation and seismic strengthening technology inlarge gymnasiums[J].Earthquake Resistant Engineeringand Retrofitting,2006,28(6):57-60(in Chinese))
[10]GB50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010(GB50011—2010Code for seismicdesign of buildings[S].Beijing:China Architecture&Building Press,2010(in Chinese))
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