高位转换隔震与耗能减震结构体系分析研究
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摘要
为了解决高位转换结构体系中转换层构件、转换层上一层剪力墙和基底剪力墙内力过大的问题,提出了高位转换隔震与耗能减震结构体系,介绍了其构造、特点,对新型结构体系工作机理进行了分析,采用ETABS软件和PERFORM 3D软件对高位转换框剪结构(NC)、高位转换层间隔震框剪结构(IS)和高位转换隔震与耗能减震框剪结构(IS+SLD+VD和IS+×+VD)进行了多遇地震和罕遇地震作用下的弹塑性时程分析,分析结果表明:①采用高位转换隔震与耗能减震结构体系后,结构层间位移角、转换层框支柱剪力、转换层上一层剪力墙和基底剪力墙内力均明显减小;②IS+SLD+VD和IS+×+VD工况中结构层间位移不会产生明显的突变,避免新薄弱层的出现;③IS+SLD+VD工况在其他参数控制效果与IS和IS+×+VD工况基本相同的情况下,其隔震层间位移明显减小,提高结构抗倾覆性能,高位转换隔震与耗能减震结构体系宜优先采用IS+SLD+VD方案;④按现行规范设计高位转换隔震与耗能减震结构体系,结构偏于更安全。
The components in transfer story,shear wall above the 1st story and base shear wall often bear to big internal force under earthquake action.In order to solve the problem,a new system of high-level transfer structure with dampers and isolation bearings is proposed and the configuration and characteristics are illustrated.The mechanism of the new system is studied.By using ETABS and perform 3D software,the models of the high-level transfer frame-shear structure(NC),the high-level transfer frame-shear structure with story isolation(IS) and the high-level transfer frame-shear structure with dampers and isolation bearings(IS+SLD+VD and IS+×+VD) are built,and nonlinear time history analysis under frequently and rarely occurred earthquake are conducted.The results show that:①the story drift,shear force of frame-support column in transfer story,the internal force of shear wall above the 1st story and base shear wall is obvious reduced due to the adoption of the new system;②the story displacement do not change significantly in the IS+SLD+VD and IS+×+VD cases,the new weak story can be avoided;③compared with the IS+×+VD and IS case,the isolation story displacement is obvious reduced in the IS+SLD+VD case.The overturning resistance performance of the IS+SLD+VD structure could be obviously improved;it should take priority to use the IS+SLD+VD case in the engineering practice;④Design result of the new system according to the existing design codes is slightly conservative.
The components in transfer story,shear wall above the 1st story and base shear wall often bear to big internal force under earthquake action.In order to solve the problem,a new system of high-level transfer structure with dampers and isolation bearings is proposed and the configuration and characteristics are illustrated.The mechanism of the new system is studied.By using ETABS and perform 3D software,the models of the high-level transfer frame-shear structure(NC),the high-level transfer frame-shear structure with story isolation(IS) and the high-level transfer frame-shear structure with dampers and isolation bearings(IS+SLD+VD and IS+×+VD) are built,and nonlinear time history analysis under frequently and rarely occurred earthquake are conducted.The results show that:①the story drift,shear force of frame-support column in transfer story,the internal force of shear wall above the 1st story and base shear wall is obvious reduced due to the adoption of the new system;②the story displacement do not change significantly in the IS+SLD+VD and IS+×+VD cases,the new weak story can be avoided;③compared with the IS+×+VD and IS case,the isolation story displacement is obvious reduced in the IS+SLD+VD case.The overturning resistance performance of the IS+SLD+VD structure could be obviously improved;it should take priority to use the IS+SLD+VD case in the engineering practice;④Design result of the new system according to the existing design codes is slightly conservative.
引文
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[9]黄襄云,金建敏,周福霖,等.高位转换框支剪力墙高层建筑抗震性能研究[J].地震工程与工程振动,2004,24(3):73-81(Huang Xiangyun,Jin Jianmin,Zhou Fulin,et al.Seismic behavior analysis of a high-rise building offrame-shear wall structure with high transfer floor[J].Earthquake Engineering and Engineering Vibration,2004,24(3):73-81(in Chinese))
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[11]王森,魏琏.不同高位转换层对高层建筑动力特性和地震作用影响的研究[J].建筑结构,2002,32(1):54-58(Wang Sen,Wei Lian.Effect of the level of transferstory on dynamic characteristics and earthquake action ofhigh-rise structures[J].Building structure,2002,32(1):54-58(in Chinese))
[12]原媛.高位转换短肢剪力墙结构的地震反应分析[D].广州:广州大学,2006(Yuan Yuan.Seismic analysis of ahigh-rise building of short-pier shear wall structure withhigh transfer floor[D].Guangzhou:Guangzhou University,2006(in Chinese))
[13]周云,吴从晓,吴从永.底层框架震损结构断柱装垫加固方法研究[J].工程抗震与加固改造,2010,32(2):112-121(Zhou Yun,Wu Congxiao,Wu Congyong.Studies on aseismic retrofitting method which cuts off the bottom columnsand adds isolators for the damaged ground floor frame[J].Earthquake Resistant Engineering and Retrofitting,2010,32(2):112-121(in Chinese))
[14]周云,吴从晓,陈真,等.改进框架结构抗震性能的新途径和新方法[C]//地震工程与减轻地震灾害研讨会——纪念汶川地震一周年.成都,2009:257-264
[15]周云,吴从晓.灾后建筑加固耗能减震技术与方法[C]//汶川地震建筑震害调查与灾后重建分析报告.北京:中国建筑工业出版社,2008:375-382
[16]Anil Chopra.结构动力学[M].谢礼立,吕大刚,译.北京:高等教育出版社,2007
[17]林云腾.层间隔震结构工作机理研究[D].福州:福州大学,2004(Lin Yunteng.Research on the mechanism of storyisola tion structure[D].Fuzhou:Fuzhou University,2004(inChinese))
[18]丁文镜.减振理论[M].北京:清华大学出版社,1988
[19]周福霖,张颖,谭平.层间隔震体系的理论研究[J].土木工程学报,2009,42(8):1-7(Zhou Fulin,Zhang Ying,Tan Ping.Theoretical study on story isolation system[J].China Civil Engineering Journal,2009,42(8):1-7(inChinese))
[20]吴从晓.高位转换减震框剪结构分析与设计方法研究[D].广州:广州大学,2010(Wu Congxiao.Analysis anddesign method study on the system of high-level transferframe-shear wall structure with seismic control technology[D].Guangzhou:Guangzhou University,2010(in Chinese))
[2]徐培福.复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005
[3]吕西林,陈跃,卢文胜,等.高位转换超高层结构整体模型振动台试验研究[J].同济大学学报,2008,36(6):711-716(LüXilin,Chen Yue,Lu Wensheng,et al.Shakingtable experimental study on a super tall-building with high-level transfer story[J].Journal of Tongji University,2008,36(6):711-716(in Chinese))
[4]徐培福,黄澄波,等.底层大空间剪力墙结构12层模型试验研究[J].建筑结构学报,1984(,2):15-21(Xu Peifu,Huang Chengbo,et al.Investigation of a twelve-story shearwall structural model with large space ground floor[J].Journal of Building Structures,1984(2):15-21(in Chinese))
[5]徐培福,薛彦涛,肖从真,等.带转换层型钢混凝土框架-核心筒结构模型拟静力试验对抗震设计的启示[J].土木工程学报,2005,38(9):1-8(Xu Peifu,Xue Yantao,XiaoCongzhen,et al.Seismic design concept from a pseudo-static test of steel reinforced concrete frame-core wall structuremodel with transfer floo[rJ].China Civil Engineering Journal,2005,38(9):1-8(in Chinese))
[6]徐培福,王翠坤,郝锐坤,等.转换层设置高度对框支剪力墙结构抗震性能的影响[J].建筑结构,2000,20(1):38-42(Xu Peifu,Wang Cuikun,Hao Ruikun,et al.Effect of the level of transfer story on seismic behavior ofshear wall structure with supporting frames[J].BuildingStructure,2000,20(1):38-42(in Chinese))
[7]Wu Meiliang,Qian Jiaru,Fang Xiaodan,et al.Experimentaland analytical studies on tall buildings with a high-leveltransfer story[J].The Structural Design of Tall and SpecialBuildings,2007,16(3):301-319
[8]徐丽鸣.框支剪力墙结构抗震性能试验研究[D].重庆:重庆大学,2009(Xu Liming.Experiment study on seismicbehavior of frame supported shear wall structure[sD].Chongqing:Chongqing University,2009(in Chinese))
[9]黄襄云,金建敏,周福霖,等.高位转换框支剪力墙高层建筑抗震性能研究[J].地震工程与工程振动,2004,24(3):73-81(Huang Xiangyun,Jin Jianmin,Zhou Fulin,et al.Seismic behavior analysis of a high-rise building offrame-shear wall structure with high transfer floor[J].Earthquake Engineering and Engineering Vibration,2004,24(3):73-81(in Chinese))
[10]Li C S,Lam S S E,Zhang M Z,et al.Shaking table testof a 1:20 scale high-rise building with a transfer platesystem[J].Journal of Structural Engineering,ASCE,2006,132(11):1732-1744
[11]王森,魏琏.不同高位转换层对高层建筑动力特性和地震作用影响的研究[J].建筑结构,2002,32(1):54-58(Wang Sen,Wei Lian.Effect of the level of transferstory on dynamic characteristics and earthquake action ofhigh-rise structures[J].Building structure,2002,32(1):54-58(in Chinese))
[12]原媛.高位转换短肢剪力墙结构的地震反应分析[D].广州:广州大学,2006(Yuan Yuan.Seismic analysis of ahigh-rise building of short-pier shear wall structure withhigh transfer floor[D].Guangzhou:Guangzhou University,2006(in Chinese))
[13]周云,吴从晓,吴从永.底层框架震损结构断柱装垫加固方法研究[J].工程抗震与加固改造,2010,32(2):112-121(Zhou Yun,Wu Congxiao,Wu Congyong.Studies on aseismic retrofitting method which cuts off the bottom columnsand adds isolators for the damaged ground floor frame[J].Earthquake Resistant Engineering and Retrofitting,2010,32(2):112-121(in Chinese))
[14]周云,吴从晓,陈真,等.改进框架结构抗震性能的新途径和新方法[C]//地震工程与减轻地震灾害研讨会——纪念汶川地震一周年.成都,2009:257-264
[15]周云,吴从晓.灾后建筑加固耗能减震技术与方法[C]//汶川地震建筑震害调查与灾后重建分析报告.北京:中国建筑工业出版社,2008:375-382
[16]Anil Chopra.结构动力学[M].谢礼立,吕大刚,译.北京:高等教育出版社,2007
[17]林云腾.层间隔震结构工作机理研究[D].福州:福州大学,2004(Lin Yunteng.Research on the mechanism of storyisola tion structure[D].Fuzhou:Fuzhou University,2004(inChinese))
[18]丁文镜.减振理论[M].北京:清华大学出版社,1988
[19]周福霖,张颖,谭平.层间隔震体系的理论研究[J].土木工程学报,2009,42(8):1-7(Zhou Fulin,Zhang Ying,Tan Ping.Theoretical study on story isolation system[J].China Civil Engineering Journal,2009,42(8):1-7(inChinese))
[20]吴从晓.高位转换减震框剪结构分析与设计方法研究[D].广州:广州大学,2010(Wu Congxiao.Analysis anddesign method study on the system of high-level transferframe-shear wall structure with seismic control technology[D].Guangzhou:Guangzhou University,2010(in Chinese))
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