FPS隔震体系振动台试验与有限元模型对比分析
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摘要
设计制作了一种摩擦摆隔震支座,并将其置于基础与上部结构之间,完成了一6层单跨钢框架摩擦摆隔震体系模拟地震振动台试验。针对不同场地从模型振动台试验和有限元计算两个方面进行了全面研究,并将两者结果进行比较。试验及有限元分析结果表明:理论分析和试验研究结果吻合较好,摩擦摆隔震装置能够有效的延长上部结构的自振周期,限制隔震层过大位移,同时具有自动回位的功能,有效减少了地震作用对上部结构的影响,隔震效果明显。
A kind of FPS bearings is designed for isolating superstructure and foundation in a six-story single span steel-frame model subjected to shake table testing.Using both shake table tests and finite element analysis,different site responses were analyzed and compared.The experimental and finite element analysis results indicate that,the FPS is an effective isolation device that can lengthen the natural period and reduce the earthquake effect on upper structure.
A kind of FPS bearings is designed for isolating superstructure and foundation in a six-story single span steel-frame model subjected to shake table testing.Using both shake table tests and finite element analysis,different site responses were analyzed and compared.The experimental and finite element analysis results indicate that,the FPS is an effective isolation device that can lengthen the natural period and reduce the earthquake effect on upper structure.
引文
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[4]李大望,周锡元,王东炜.FPS自治系统及其性态分析[J].振动与冲击,1999,1(18):23-25.(Li Dawang,Zhou Xiyuan,Wang Dongwei.Autonomous FPS and itsperformance analysis[J].Journal of Vibration and Shock,1999,1(18):23-25.(in Chinese)).
[5]李大望,李桂青,周锡元.FPS隔震结构的水平和竖向振动响应分析[J].建筑结构,2000,30(7):61-64.(LiDawang,Li Guiqing,Zhou Xiyuan.Analysis for thehorizontal and vertical vibration responses of base-isolatedbuilding with FPS bearings[J].Building Structure,2000,30(7):61-64.(in Chinese)).
[6]Mokha AS,Amin N,Constantinou MC,Zayas V.Seismicisolation retrofit of large historic building[J].Journal ofStructural Engineering,ASCE,1996,122(3):298-308.
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[8]Tsopelas P,Constantinou M C,Kim Y S,Okamoto S.Experimental study of FPS system in bridge seismic isolation[J].Earthquake Engineering and Structural Dynamics,1996,25(2):65-78.
[2]李大望,关罡,霍达.FPS型TMD控震效应分析[J].工业建筑,2001,31(2):21-23.(Li Dawang,Guan Gang,Huo Da.Analysis for effect of FPS-typed TMD controllingseismic responses[J].Industrial Construction,2001,31(2):21-23.(in Chinese)).
[3]李大望,关罡,赵卓.摩擦摆系统稳态随机响应预测[J].世界地震工程,2000,3(16):101-104.(Li Dawang,GuanGang,Zhao Zhuo.Forecasting for the steady state randomresponses of friction pendulum systems[J].WorldInformation on Earthquake Engineering,2000,3(16):101-104.(in Chinese)).
[4]李大望,周锡元,王东炜.FPS自治系统及其性态分析[J].振动与冲击,1999,1(18):23-25.(Li Dawang,Zhou Xiyuan,Wang Dongwei.Autonomous FPS and itsperformance analysis[J].Journal of Vibration and Shock,1999,1(18):23-25.(in Chinese)).
[5]李大望,李桂青,周锡元.FPS隔震结构的水平和竖向振动响应分析[J].建筑结构,2000,30(7):61-64.(LiDawang,Li Guiqing,Zhou Xiyuan.Analysis for thehorizontal and vertical vibration responses of base-isolatedbuilding with FPS bearings[J].Building Structure,2000,30(7):61-64.(in Chinese)).
[6]Mokha AS,Amin N,Constantinou MC,Zayas V.Seismicisolation retrofit of large historic building[J].Journal ofStructural Engineering,ASCE,1996,122(3):298-308.
[7]Mokha A S,Constantinou M C,Reinhorn A M,Zayas V.Experimental study of friction pendulum system isolationsystem[J].Journal of Structural Engineering,ASCE,1991,117(4):1201-1217.
[8]Tsopelas P,Constantinou M C,Kim Y S,Okamoto S.Experimental study of FPS system in bridge seismic isolation[J].Earthquake Engineering and Structural Dynamics,1996,25(2):65-78.
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