地震作用下铅芯橡胶隔震支座在地铁车站中的应用
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摘要
文章以合肥市某地铁车站为研究对象,利用有限元软件ANSYS分别建立未使用隔震支座和使用铅芯橡胶隔震支座的箱型地铁车站模型,输入调幅后的El-centro地震波作为地震作用进行数值模拟。比较2种模型情况下车站中柱的动力响应。结果表明:使用铅芯橡胶隔震支座作为局部减震措施对于改变结构自振频率影响不大,但在很大程度上可以减小车站中柱在地震作用下的响应,起到减震的作用。
Taking a subway station in Hefei as the research object,and uses the finite element software ANSYS to establish two box-shaped subway station models,one adopts lead-core rubber isolation bearing and the other is not adopted.Input the adjustment data of the El-centro wave as a seismic effect,and compare the dynamic response of the centre column in the two models.The results show that the use of lead-core rubber isolation bearing as a local shock absorber has little effect on the natural frequency of the structure, but can largely reduce the subway station in column under the action of earthquake response,and have the effect of shock absorption.
Taking a subway station in Hefei as the research object,and uses the finite element software ANSYS to establish two box-shaped subway station models,one adopts lead-core rubber isolation bearing and the other is not adopted.Input the adjustment data of the El-centro wave as a seismic effect,and compare the dynamic response of the centre column in the two models.The results show that the use of lead-core rubber isolation bearing as a local shock absorber has little effect on the natural frequency of the structure, but can largely reduce the subway station in column under the action of earthquake response,and have the effect of shock absorption.
引文
[1]袁勇,陈之毅.城市地下空间抗展与安全[M].上海:同济大学出版社,2014:12-15.
[2]周福霖.工程结构减震控制[M].北京:地震出版社,1997:46-48.
[3]Tavakoli H,Naghavi F,Goltabar A.Dynamic Responses of the Base-Fixed and Isolated Building Frames Under Far-and Near-Fault Earthquakes[J].Arabian Journal for Science&Engineering,2014,39(4):2573-2585.
[4]T V Pradeep Kumar,Paul D K.Force-Deformation Behavior of Isolation Bearings[J].Journal of Bridge Engineering,2007,12(4):527-529.
[5]吕爱钟,蒋斌松,尤春安.位移反分析有限元网格划分范围的研究[J].土木工程学报,1999,32(1):26-30.
[6]中国公路桥梁和结构工程分会.公路桥梁铅芯橡胶隔展支座:JT/T 822-2011[S].北京:人民交通出版社,2011,15-19.
[7]方秦,陈力,杜茂林.端部设置弹簧和阻尼器提高防护门抗力的理论与数值分析[J].工程力学,2008,25(3):194-199.
[8]庄文娟,朱玉华.铅芯橡胶隔震支座阻尼特性有限元分析[J].建筑结构,2010,40(1):125-128.
[9]刘晶波,杜义欣,闫秋实.粘弹性人工边界及地震动输入在通用有限元软件中的实现[J].防灾减灾工程学报,2007,27(1):37-42.
[10]张志俊,李小珍,张迅,等.弹性支座对桥梁车致振动的隔振效果研究[J].工程力学,2015,32(4):103-111.
[11]LI Yayong,JIN xiaoguang,LV Zhitao.Effect of earthquake on stability of subway station and ground motions of surrounding rock masses[J].Journal of Vibro engineering,2016,18(2):1060-1071.
[2]周福霖.工程结构减震控制[M].北京:地震出版社,1997:46-48.
[3]Tavakoli H,Naghavi F,Goltabar A.Dynamic Responses of the Base-Fixed and Isolated Building Frames Under Far-and Near-Fault Earthquakes[J].Arabian Journal for Science&Engineering,2014,39(4):2573-2585.
[4]T V Pradeep Kumar,Paul D K.Force-Deformation Behavior of Isolation Bearings[J].Journal of Bridge Engineering,2007,12(4):527-529.
[5]吕爱钟,蒋斌松,尤春安.位移反分析有限元网格划分范围的研究[J].土木工程学报,1999,32(1):26-30.
[6]中国公路桥梁和结构工程分会.公路桥梁铅芯橡胶隔展支座:JT/T 822-2011[S].北京:人民交通出版社,2011,15-19.
[7]方秦,陈力,杜茂林.端部设置弹簧和阻尼器提高防护门抗力的理论与数值分析[J].工程力学,2008,25(3):194-199.
[8]庄文娟,朱玉华.铅芯橡胶隔震支座阻尼特性有限元分析[J].建筑结构,2010,40(1):125-128.
[9]刘晶波,杜义欣,闫秋实.粘弹性人工边界及地震动输入在通用有限元软件中的实现[J].防灾减灾工程学报,2007,27(1):37-42.
[10]张志俊,李小珍,张迅,等.弹性支座对桥梁车致振动的隔振效果研究[J].工程力学,2015,32(4):103-111.
[11]LI Yayong,JIN xiaoguang,LV Zhitao.Effect of earthquake on stability of subway station and ground motions of surrounding rock masses[J].Journal of Vibro engineering,2016,18(2):1060-1071.