不规则框架结构的组合隔震反应分析
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摘要
为研究不规则框架隔震结构的地震反应,分别对一个传统抗震结构、一个铅芯叠层橡胶支座隔震结构和四个组合隔震结构(隔震层由铅芯支座和滑板支座组成)进行了弹塑性地震反应时程分析,研究隔震支座参数对隔震效果的影响。结果表明:采用组合隔震技术时,合理选择隔震层的铅芯支座布置位置、滑板支座的摩擦系数和铅芯叠层橡胶支座的型号,可以有效地降低上部结构的扭转效应;对于不规则的建筑隔震结构,为减小地面运动带来的扭转效应,建议采用由铅芯支座和滑板支座组合而成的隔震层,可对上部结构的扭转起到很好的抑制作用。
In order to study the earthquake effect on irregular frame isolated structure,the elasto-plastic earthquake response time-history analyses of a traditional aseismic structure,an isolated structure with an LRB and four combinatorial isolation structures(the structure whose isolation layer is composed of an LRB and a sliding friction isolating bearing)are made and the influences of the parameter of isolating bearing on the isolation effect are studied.The results indicate that the torsinal response of the upper structure may be efficiently reduced when using the combinatorial isolation technology by rationally choosing the layout location of the LRB,the coefficient of friction of the sliding friction isolating bearing and the model of the LRB for the isolation layer.Consequently,for irregular isolation structure with frame,we could efficiently control the torsion of the upper structure by using the isolation layer,which is composed of an LRB and a sliding friction isolating bearing,to reduce the torsional effect exerted by the ground motion.
In order to study the earthquake effect on irregular frame isolated structure,the elasto-plastic earthquake response time-history analyses of a traditional aseismic structure,an isolated structure with an LRB and four combinatorial isolation structures(the structure whose isolation layer is composed of an LRB and a sliding friction isolating bearing)are made and the influences of the parameter of isolating bearing on the isolation effect are studied.The results indicate that the torsinal response of the upper structure may be efficiently reduced when using the combinatorial isolation technology by rationally choosing the layout location of the LRB,the coefficient of friction of the sliding friction isolating bearing and the model of the LRB for the isolation layer.Consequently,for irregular isolation structure with frame,we could efficiently control the torsion of the upper structure by using the isolation layer,which is composed of an LRB and a sliding friction isolating bearing,to reduce the torsional effect exerted by the ground motion.
引文
[1]祁皑,商昊江,范宏伟.高层隔震结构扭转分析[J].世界地震工程,2011,27(1):121-129.QI Ai,SHANG Haojiang,FAN Hongwei.Study on torsion of high-rise isolation structures[J].World Earthquake Engineering,2011,27(1):121-129.(in Chinese)
[2]黄鑫东,刘文光,何文福.不规则高层隔震结构地震响应的影响分析[J].工程抗震与加固改造,2010,32(3):18-22.HUANG Xindong,LIU Wenguang,HE Wenfu.Study on seismic responses of irregular isolated high-rise[J].Earthquake Resistant Engineeringand Retrofitting,2010,32(3):18-22.(in Chinese)
[3]GB50011-2001.建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.GB50011-2001.Gode for Seismic Design of Building[S].Beijing:China Architecture&Building Press,2001.(in Chinese)
[4]GB50011-2010.建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.GB50011-2010.Code for seismic Design of Building[S].Beijing:China Architecture&Building Press,2010.(in Chinese)
[5]Kelly J M.Aseismic base isolation:Review and bibliography[J].Soil Dynamic&Earthquake Engineering,1986,5(3):212-226.
[6]Chalhoub M S,Kelly J M:Slidders and tension controlled reinforced elastomeric bearings combined for earthquake isolation[J].Earthquake Engi-neering and Structural Dynamics,1990:19,333-344.
[7]吕西林,朱玉华,施卫星,等.组合基础隔震系统在多向地震作用下的振动台试验与对比[C]//西安:第五届中日建筑结构技术交流会论文集,2001:497-505.
[8]吕西林,朱玉华,施卫星,等.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 on building models with combined isolation system[J].China Civil Engineering Journal,2001,34(2):43-49.(in Chinese)
[9]魏陆顺,周福霖,刘文光.组合基础隔震在建筑工程中的应用[J].地震工程与工程振动,2007,27(2):158-163.WEI Lushun,ZHOU Fulin,LIU Wenguang.Application of combined base isolation to buildings[J].Journal of Earthquake Engineering and Engi-neering Vibration,2007,27(2):158-163.(in Chinese)
[10]杜东升,王曙光,刘伟庆,等.高层组合隔震基于性能的设计方法及应用[J].东南大学学报,2009,40(5):1039-1046.DU Dongsheng,Wang Shuguang,LIU Weiqing.Design method and its application in hybrid base-isolation of high-rise buildings[J].SoutheastUniversity:Natural Science Edition,2009,40(5):1039-1046.(in Chinese)
[11]魏陆顺,周福霖,刘文光.广州大学城应用组合基础隔震技术[J].建筑工程,2005(2):30-31.WEI Lushun,ZHOU Fulin,LIU Wenguang.Application of hybrid base isolating earthquake technology[J].Construction Science and Technolo-gy,2005(2):30-31.(in Chinese)
[12]徐忠根,周福霖,马玉宏.隔震层位置与隔震支座选型[J].世界地震工程,2010,26(1):105-108.XU Zhonggen,ZHOU Fulin,MA Yuhong.Locations of isolation system and choice of bearings[J].World Earthquake Engineering,2010,26(1):105-108.(in Chinese)
[13]Buckle I G.Passive control of structures for seismic loads[C]//Proceeding of 12th Word Conference on Earthquake Engineering,New Zealand,2000:2825-2830.
[14]Mazzoti C,Savoia M.Non-linear seismic analysis of base-isolated RC frame tructures[J].Earthquake Engineering and Structural Dynamics,1998,28:663-653.
[15]Takafumi M,Fujita,etc.Analytical model for the lead rubber bearing[R].Techinical Report LRB,2000.
[16]李宏男,霍林生.结构多维减震控制[M].北京:科学出版社,2008.LI Hongnan,HUO Linshen.Structural muti-dimensional shock absorhing control[M].Beijing:Science Press,2008.(in Chinese)
[2]黄鑫东,刘文光,何文福.不规则高层隔震结构地震响应的影响分析[J].工程抗震与加固改造,2010,32(3):18-22.HUANG Xindong,LIU Wenguang,HE Wenfu.Study on seismic responses of irregular isolated high-rise[J].Earthquake Resistant Engineeringand Retrofitting,2010,32(3):18-22.(in Chinese)
[3]GB50011-2001.建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.GB50011-2001.Gode for Seismic Design of Building[S].Beijing:China Architecture&Building Press,2001.(in Chinese)
[4]GB50011-2010.建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.GB50011-2010.Code for seismic Design of Building[S].Beijing:China Architecture&Building Press,2010.(in Chinese)
[5]Kelly J M.Aseismic base isolation:Review and bibliography[J].Soil Dynamic&Earthquake Engineering,1986,5(3):212-226.
[6]Chalhoub M S,Kelly J M:Slidders and tension controlled reinforced elastomeric bearings combined for earthquake isolation[J].Earthquake Engi-neering and Structural Dynamics,1990:19,333-344.
[7]吕西林,朱玉华,施卫星,等.组合基础隔震系统在多向地震作用下的振动台试验与对比[C]//西安:第五届中日建筑结构技术交流会论文集,2001:497-505.
[8]吕西林,朱玉华,施卫星,等.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 on building models with combined isolation system[J].China Civil Engineering Journal,2001,34(2):43-49.(in Chinese)
[9]魏陆顺,周福霖,刘文光.组合基础隔震在建筑工程中的应用[J].地震工程与工程振动,2007,27(2):158-163.WEI Lushun,ZHOU Fulin,LIU Wenguang.Application of combined base isolation to buildings[J].Journal of Earthquake Engineering and Engi-neering Vibration,2007,27(2):158-163.(in Chinese)
[10]杜东升,王曙光,刘伟庆,等.高层组合隔震基于性能的设计方法及应用[J].东南大学学报,2009,40(5):1039-1046.DU Dongsheng,Wang Shuguang,LIU Weiqing.Design method and its application in hybrid base-isolation of high-rise buildings[J].SoutheastUniversity:Natural Science Edition,2009,40(5):1039-1046.(in Chinese)
[11]魏陆顺,周福霖,刘文光.广州大学城应用组合基础隔震技术[J].建筑工程,2005(2):30-31.WEI Lushun,ZHOU Fulin,LIU Wenguang.Application of hybrid base isolating earthquake technology[J].Construction Science and Technolo-gy,2005(2):30-31.(in Chinese)
[12]徐忠根,周福霖,马玉宏.隔震层位置与隔震支座选型[J].世界地震工程,2010,26(1):105-108.XU Zhonggen,ZHOU Fulin,MA Yuhong.Locations of isolation system and choice of bearings[J].World Earthquake Engineering,2010,26(1):105-108.(in Chinese)
[13]Buckle I G.Passive control of structures for seismic loads[C]//Proceeding of 12th Word Conference on Earthquake Engineering,New Zealand,2000:2825-2830.
[14]Mazzoti C,Savoia M.Non-linear seismic analysis of base-isolated RC frame tructures[J].Earthquake Engineering and Structural Dynamics,1998,28:663-653.
[15]Takafumi M,Fujita,etc.Analytical model for the lead rubber bearing[R].Techinical Report LRB,2000.
[16]李宏男,霍林生.结构多维减震控制[M].北京:科学出版社,2008.LI Hongnan,HUO Linshen.Structural muti-dimensional shock absorhing control[M].Beijing:Science Press,2008.(in Chinese)
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