某教学楼在不同隔震参数配置下的减震系数研究
|
摘要
GB 50011—2001《建筑抗震设计规范(2008年版)》中隔震设计是采用减震系数的方法,但是隔震参数在不同配置时的减震系数研究还比较少。通过对某教学楼采用橡胶隔震和带摩擦阻尼的橡胶隔震分析,研究该结构在这两种情况下的地震反应,并结合规范得出减震系数。为分析带摩擦阻尼的橡胶隔震不同配置时的地震反应,提出摩擦阻尼和橡胶支座恢复力配置比R,研究结构在不同R时的地震反应及减震系数。结果表明:隔震后上部结构地震反应明显减小,橡胶隔震可使上部结构设防烈度降低1.5度,带摩擦阻尼的橡胶隔震可降低1度。采用参数R分析减震效果时,摩擦阻尼一定而增大R,结构的层间剪力和减震系数都减小,但当R值大于5时,减震系数趋于稳定值。
There are design of the seismic isolation in the code for seismic design of buildings(GB 50011—2001)in China.An important feature of this code is to coordinate the design of seismic isolated buildings with that of traditional seismic buildings.The seismic isolating coefficient is the key point to complete coordinating,but research on seismic isolating coefficient with different isolating configuration has hardly been studied.A rubber base-isolated school building with and without friction damper has been studied.It's earthquake resistance and seismic isolating coefficient have been obtained.The parameter"R",which is the ratio between friction damper and restoring force of rubber bearing has been presented,and the seismic isolating coefficient has also been obtained at different R values.The results show that seismic fortification intensity of rubber bearing can be reduced by one intensity,and it is 1.5 intensity with friction damper.The story shears and seismic isolating coefficient decrease when R increase,but the seismic isolating coefficient becomes constant value when R is above 5.
There are design of the seismic isolation in the code for seismic design of buildings(GB 50011—2001)in China.An important feature of this code is to coordinate the design of seismic isolated buildings with that of traditional seismic buildings.The seismic isolating coefficient is the key point to complete coordinating,but research on seismic isolating coefficient with different isolating configuration has hardly been studied.A rubber base-isolated school building with and without friction damper has been studied.It's earthquake resistance and seismic isolating coefficient have been obtained.The parameter"R",which is the ratio between friction damper and restoring force of rubber bearing has been presented,and the seismic isolating coefficient has also been obtained at different R values.The results show that seismic fortification intensity of rubber bearing can be reduced by one intensity,and it is 1.5 intensity with friction damper.The story shears and seismic isolating coefficient decrease when R increase,but the seismic isolating coefficient becomes constant value when R is above 5.
引文
[1]GB 50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001(GB 50011—2001 Code for seismicdesign of buildings[S].Beijing:China Architecture&Building Press,2001(in Chinese))
[2]康家祥.我国第一个隔震建筑的设计规范[J].建筑结构,2002,32(1):67-70(Tang Jiaxiang.The code of designfor seismic isolated building in China[J].BuildingStructure,2002,32(1):67-70(in Chinese))
[3]唐家祥.建筑隔震与消能减震设计[J].建筑科学,2002,18(1):21-27(Tang Jiaxiang.Design of seismicisolation and energy dissipation for buildings[J].BuildingScience,2002,18(1):21-27(in Chinese))
[4]张同亿.叠层橡胶支座隔震结构设计的若干问题[J].建筑结构,2007,37(8):59-61(Zhang Tongyi.Discussionabout structure design of building with laminated rubberisolators[J].Building Structure,2007,37(8):59-61(inChinese))
[5]杜健民,袁迎曙,王波.多层框架整体平移后隔震连接的减震性能研究[J].中国矿业大学学报,2009,38(2):164-169(Du Jianmin,Yuan Yingshu,Wang Bo.Researchon seismic reduction behavior of isolation connection aftermonolithic translation of multistoried frame structure[J].Journal of China University of Mining&Technology,2009,38(2):164-169(in Chinese))
[6]刘惠利,刘文光.隔震结构设计与分析方法探讨[J].广州大学学报:自然科学版,2005,4(2):171-175(LiuHuili,Liu Wenguang.Discussion on the design andanalysis method of isolated structures[J].Journal ofGuangzhou University:Natural Science Edition,2005,4(2):171-175(in Chinese))
[7]祁皑,林于东.改进的基础隔震结构地震作用简化计算方法[J].地震工程与工程振动,2006,26(1):152-157(Qi Ai,Lin Yudong.An improved simplified method forseismic action design of base-isolation buildings[J].Earthquake Engineering and Engineering Vibration,2006,26(1):152-157(in Chinese))
[8]张文芳,程文瀼.基础隔震结构设置摩擦阻尼器的地震反应研究[J].土木工程学报,2001,34(5):1-9(ZhangWenfang,Cheng Wenrang.A model for seismic response ofbase-isolated structures with friction dampers[J].ChinaCivil Engineering Journal,2001,34(5):1-9(in Chinese))
[9]牛力军.橡胶支座基础隔震结构采用摩擦消能的减震研究[D].太原:太原理工大学,2005
[10]荣强,程文瀼.橡胶-摩擦并联隔震体系的弹塑性时程分析[J].工业建筑,2007,37(2):47-49(Rong Qiang,Cheng Wenrang.Elastoplastic time-history analysis ofrubber-friction parallel isolation system[J].IndustrialConstruction,2007,37(2):47-49(in Chinese))
[11]李俊.建筑结构基础混合隔震的振动分析与工程应用[D].南京:东南大学,1999
[12]罗文斌,钱稼茹.钢筋混凝土框架基于位移的抗震设计[J].土木工程学报,2003,36(5):22-29(Luo Wenbin,Qian Jiaru.Displacement based seismic design for RCframes[J].China Civil Engineering Journal,2003,36(5):22-29(in Chinese))
[2]康家祥.我国第一个隔震建筑的设计规范[J].建筑结构,2002,32(1):67-70(Tang Jiaxiang.The code of designfor seismic isolated building in China[J].BuildingStructure,2002,32(1):67-70(in Chinese))
[3]唐家祥.建筑隔震与消能减震设计[J].建筑科学,2002,18(1):21-27(Tang Jiaxiang.Design of seismicisolation and energy dissipation for buildings[J].BuildingScience,2002,18(1):21-27(in Chinese))
[4]张同亿.叠层橡胶支座隔震结构设计的若干问题[J].建筑结构,2007,37(8):59-61(Zhang Tongyi.Discussionabout structure design of building with laminated rubberisolators[J].Building Structure,2007,37(8):59-61(inChinese))
[5]杜健民,袁迎曙,王波.多层框架整体平移后隔震连接的减震性能研究[J].中国矿业大学学报,2009,38(2):164-169(Du Jianmin,Yuan Yingshu,Wang Bo.Researchon seismic reduction behavior of isolation connection aftermonolithic translation of multistoried frame structure[J].Journal of China University of Mining&Technology,2009,38(2):164-169(in Chinese))
[6]刘惠利,刘文光.隔震结构设计与分析方法探讨[J].广州大学学报:自然科学版,2005,4(2):171-175(LiuHuili,Liu Wenguang.Discussion on the design andanalysis method of isolated structures[J].Journal ofGuangzhou University:Natural Science Edition,2005,4(2):171-175(in Chinese))
[7]祁皑,林于东.改进的基础隔震结构地震作用简化计算方法[J].地震工程与工程振动,2006,26(1):152-157(Qi Ai,Lin Yudong.An improved simplified method forseismic action design of base-isolation buildings[J].Earthquake Engineering and Engineering Vibration,2006,26(1):152-157(in Chinese))
[8]张文芳,程文瀼.基础隔震结构设置摩擦阻尼器的地震反应研究[J].土木工程学报,2001,34(5):1-9(ZhangWenfang,Cheng Wenrang.A model for seismic response ofbase-isolated structures with friction dampers[J].ChinaCivil Engineering Journal,2001,34(5):1-9(in Chinese))
[9]牛力军.橡胶支座基础隔震结构采用摩擦消能的减震研究[D].太原:太原理工大学,2005
[10]荣强,程文瀼.橡胶-摩擦并联隔震体系的弹塑性时程分析[J].工业建筑,2007,37(2):47-49(Rong Qiang,Cheng Wenrang.Elastoplastic time-history analysis ofrubber-friction parallel isolation system[J].IndustrialConstruction,2007,37(2):47-49(in Chinese))
[11]李俊.建筑结构基础混合隔震的振动分析与工程应用[D].南京:东南大学,1999
[12]罗文斌,钱稼茹.钢筋混凝土框架基于位移的抗震设计[J].土木工程学报,2003,36(5):22-29(Luo Wenbin,Qian Jiaru.Displacement based seismic design for RCframes[J].China Civil Engineering Journal,2003,36(5):22-29(in Chinese))
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心