滚轴-橡胶支座组合系统隔震结构的地震反应分析
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摘要
在基础和上部结构之间设置滚轴或铅芯橡胶支座,都能起到隔震的作用,前者因为不能提供恢复力而不能单独使用,将两者按一定比例组合,可以构成组合隔震系统。该文研究了这种组合隔震系统的隔震效果。在对一个历史建筑进行隔震加固时,分别采用铅芯橡胶支座和两种比例的滚轴-橡胶支座组合隔震系统,通过计算建筑物的地震反应,并与非隔震方案进行比较,分析了三种工况的隔震效果。研究结果表明,采用铅芯橡胶支座和组合隔震系统都能明显减小上部结构的地震反应,而且后者的隔震效果优于前者。
The roller or lead-rubber bearings between the upper structure and the foundation could isolate the seismic vibration.The former could not be used solely because it could not provide a restoring force.In this research,the isolation effect of a new type of an isolation system combined with roller and lead-rubber bearings in some way was investigated.The lead-rubber bearings and two kinds of combined systems different in the bearing ratio of roller-lead rubber have been used separately in strengthening an old building,The isolation effects of 3 groups of models are obtained by calculating the seismic response and comparing with non-isolated program.The result shows that both lead rubber bearings and the combined isolation system can reduce the seismic response evidently and the latter is more effective.
The roller or lead-rubber bearings between the upper structure and the foundation could isolate the seismic vibration.The former could not be used solely because it could not provide a restoring force.In this research,the isolation effect of a new type of an isolation system combined with roller and lead-rubber bearings in some way was investigated.The lead-rubber bearings and two kinds of combined systems different in the bearing ratio of roller-lead rubber have been used separately in strengthening an old building,The isolation effects of 3 groups of models are obtained by calculating the seismic response and comparing with non-isolated program.The result shows that both lead rubber bearings and the combined isolation system can reduce the seismic response evidently and the latter is more effective.
引文
[1]周福霖,工程结构减震控制[M].北京:地震出版社,1997.Zhou Fulin.Structural vibration control of engineering[M].Beijing:Earthquake Publish Company,1997.(inChinese)
[2]Soichi Kawamura,Ryoichi Sugisaki,Keiji Ogura.Seismic isolation retrofit in Japan[C].12WCEE.Auckland,New Zealand,2000.
[3]Kelly J M.Aseismic base isolation:Review andbibliography[J].Soil Dynamics and EarthquakeEngineering,1986,5(23):202―216.
[4]Skinner R I.Seismic isolation in New Zealand[J].Nuclear Engineering Design,1991,127(28):1―9.
[5]吕西林,朱玉华,施卫星.组合基础隔震房屋模型振动台试验研究[J].土木工程学报,2001,34(2):43―49.Lu Xilin,Zhu Yuhua,Shi Weixing.Shaking table test onbuilding models with comined isolation system[J].Journal of Civil Engineering,2001,34(2):43―49.(inChinese)
[6]朱玉华,吕西林.组合基础隔震系统地震反应分析[J].土木工程学报,2004,37(4):77―81.Zhu Yuhua,Lu Xilin.Analysis of the seismic response ofthe combined isolating system[J].Journal of CivilEngineering,2004,37(4):77―81.(in Chinese)
[7]李爱群,毛利军.并联基础隔震体系地震反应特征与隔震层参数的优选[J].工程抗震与加固改造,2005,27(2):27―31.Li Aiqun,Mao Lijun.Seismic response characteristicsand optimal parameters in R-FBI system[J].EarthquakeResistant Engineering and Retrofitting,2005,27(2):27―31.(in Chinese)
[8]范夕森,张鑫,苏小卒.滚轴-橡胶垫支座组合隔震体系的模型振动台试验研究[J].工程抗震与加固改造,2009,31(2):13―48.Fan Xisen,Zhang Xin,Su Xiaozu.Experimental researchon a shaking table model with combinatorial isolationsystem made up of rollers and lead rubber bearing[J].Earthquake Resistant Engineering and Retrofitting,2009,31(2):13―48.(in Chinese)
[9]刘小煜,施卫星,徐磊.组合支座隔震结构及其动力反应分析[J].工程力学,2001(增刊):154―158.Liu Xiaoyu,Shi Weixing,Xu Lei.Base-isolated structurewith combined bearings and its dynamic response[J].Engineering Mechanics,2001(Suppl):154―158.(inChinese)
[10]范夕森,苏小卒,张鑫.组合隔振系统力学性能试验研究[J].建筑结构学报,2010,31(增刊2):50―55.Fan Xisen,Su Xiaozu,Zhang Xin.Experimental researchon mechanical behavior of combined seismic isolationsystem[J].Journal of Building Structures,2010,31(Suppl.2):50―55.(in Chinese)
[2]Soichi Kawamura,Ryoichi Sugisaki,Keiji Ogura.Seismic isolation retrofit in Japan[C].12WCEE.Auckland,New Zealand,2000.
[3]Kelly J M.Aseismic base isolation:Review andbibliography[J].Soil Dynamics and EarthquakeEngineering,1986,5(23):202―216.
[4]Skinner R I.Seismic isolation in New Zealand[J].Nuclear Engineering Design,1991,127(28):1―9.
[5]吕西林,朱玉华,施卫星.组合基础隔震房屋模型振动台试验研究[J].土木工程学报,2001,34(2):43―49.Lu Xilin,Zhu Yuhua,Shi Weixing.Shaking table test onbuilding models with comined isolation system[J].Journal of Civil Engineering,2001,34(2):43―49.(inChinese)
[6]朱玉华,吕西林.组合基础隔震系统地震反应分析[J].土木工程学报,2004,37(4):77―81.Zhu Yuhua,Lu Xilin.Analysis of the seismic response ofthe combined isolating system[J].Journal of CivilEngineering,2004,37(4):77―81.(in Chinese)
[7]李爱群,毛利军.并联基础隔震体系地震反应特征与隔震层参数的优选[J].工程抗震与加固改造,2005,27(2):27―31.Li Aiqun,Mao Lijun.Seismic response characteristicsand optimal parameters in R-FBI system[J].EarthquakeResistant Engineering and Retrofitting,2005,27(2):27―31.(in Chinese)
[8]范夕森,张鑫,苏小卒.滚轴-橡胶垫支座组合隔震体系的模型振动台试验研究[J].工程抗震与加固改造,2009,31(2):13―48.Fan Xisen,Zhang Xin,Su Xiaozu.Experimental researchon a shaking table model with combinatorial isolationsystem made up of rollers and lead rubber bearing[J].Earthquake Resistant Engineering and Retrofitting,2009,31(2):13―48.(in Chinese)
[9]刘小煜,施卫星,徐磊.组合支座隔震结构及其动力反应分析[J].工程力学,2001(增刊):154―158.Liu Xiaoyu,Shi Weixing,Xu Lei.Base-isolated structurewith combined bearings and its dynamic response[J].Engineering Mechanics,2001(Suppl):154―158.(inChinese)
[10]范夕森,苏小卒,张鑫.组合隔振系统力学性能试验研究[J].建筑结构学报,2010,31(增刊2):50―55.Fan Xisen,Su Xiaozu,Zhang Xin.Experimental researchon mechanical behavior of combined seismic isolationsystem[J].Journal of Building Structures,2010,31(Suppl.2):50―55.(in Chinese)
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