摇摆墙-框架体系的抗震损伤机制控制研究
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摘要
合理有效的损伤机制控制是提高建筑结构抗震性能的重要措施。本文在总结现有各种抗震结构体系损伤机制的基础上,研究了摇摆墙-框架结构体系的损伤机制控制原理与控制效果,给出了摇摆墙刚度的确定方法,比较了摇摆墙-框架结构体系与传统的延性框架结构体系、框架-剪力墙结构体系抗震性能的差别,指出了摇摆墙-框架结构体系的优越性。通过对一个典型的多层摇摆墙-框架结构的动力弹塑性分析,验证了所建议的摇摆墙刚度计算公式的适用性和摇摆墙-框架结构体系在结构损伤机制控制方面的有效性。
Effective damage mechanism control is essential for enhancing the seismic performance of building structures.Following a brief review of the damage mechanism of current seismic structural systems,mechanical principles and effectiveness of the damage mechanism control of rocking wall-frame structural system are studied.A practical method of estimating the stiffness demand for rocking wall is proposed and the seismic performance of rocking wall-frame structure is compared with conventional ductile frame and frame-shear wall structures,highlighting the advantages of the former.Through nonlinear dynamic analysis of a multi-story rocking wall-frame structure,the validity of the proposed method of estimating the stiffness demand for rocking wall is examined and the effectiveness of using rocking wall-frame to control the seismic damage mechanism is demonstrated.
Effective damage mechanism control is essential for enhancing the seismic performance of building structures.Following a brief review of the damage mechanism of current seismic structural systems,mechanical principles and effectiveness of the damage mechanism control of rocking wall-frame structural system are studied.A practical method of estimating the stiffness demand for rocking wall is proposed and the seismic performance of rocking wall-frame structure is compared with conventional ductile frame and frame-shear wall structures,highlighting the advantages of the former.Through nonlinear dynamic analysis of a multi-story rocking wall-frame structure,the validity of the proposed method of estimating the stiffness demand for rocking wall is examined and the effectiveness of using rocking wall-frame to control the seismic damage mechanism is demonstrated.
引文
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[2]ACI 318M-05.Building code requirements for structural concrete and commentary.[S]Farmington Hills,Michigan,US:American Concrete In-stitute,2005.
[3]GB50011-2001建筑抗震设计规范[S].
[4]叶列平,陆新征,赵世春,等.框架结构抗地震倒塌能力的研究[J].建筑结构学报,2009,30(6):67-76.
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[15]叶列平,程光煜,陆新征,等.简论结构抗震的鲁棒性[J].建筑结构,2008,38(6):11-15.
[16]Earthquake Engineering Research Institute(EERI).Observations on building damage from Francisco Medina[DB/OL].[2010-03-20].ht-tp://www.eqclearinghouse.org/20100227-chile/general-information/observations-on-building-damage-from-francisco-medina/.
[17]Earthquake Engineering Research Institute(EERI).Observations from Jack Moehle,3/12/2010[DB/OL].[2010-03-20].http://www.eqclearinghouse.org/20100227-chile/general-information/observations-from-jack-moehle-3122010
[18]曲哲.摇摆墙-框架结构抗震损伤机制控制及设计方法研究[D].北京:清华大学,2010.
[19]GB50010-2002混凝土结构设计规范[S].
[20]Wada A,Qu Z,Ito H.et al.Seismic retrofit using rocking walls and steel dampers[C]//.ATC&SEI Conference on Improving the Seismic Per-formance of Existing Buildings and Other Structures,ASCE,San Francisco,US,Dec.2009,in CD-ROM.
[2]ACI 318M-05.Building code requirements for structural concrete and commentary.[S]Farmington Hills,Michigan,US:American Concrete In-stitute,2005.
[3]GB50011-2001建筑抗震设计规范[S].
[4]叶列平,陆新征,赵世春,等.框架结构抗地震倒塌能力的研究[J].建筑结构学报,2009,30(6):67-76.
[5]Sozen MA,Matthiesen R B.Engineering report on the Managua earthquake of23 December1972[R].Report to Committee on Natural Disaster,National Research Council,1975.
[6]Mahin S A,Bertero V V.Nonlinear seismic response of a coupled wall system[C]//Proc.ASCE National Convention,1975.
[7]缪志伟.钢筋混凝土框架剪力墙结构基于能量抗震设计方法研究[D].北京:清华大学,2009.
[8]Wada A,Connor J J,Kawai H,et al.Damage tolerant structure[C]//Proc the 5th U.S.-Japan Workshop on the Improvement of BuildingStructural Design and Construction Practice,1992.
[9]岩田衛,黄一華,川合W樹,等.被害レベル制御構造「Damage Tolerant Structure」に関する研究[J].日本建築学会技術報告集,1995(1):82-87.
[10]叶列平.体系能力设计法与基于性态/位移抗震设计[J].建筑结构,2004,34(6):10-14.
[11]太田俊也,溜正俊,鴇田隆,等.平成16年(2004年)新潟県中越地震における小千谷市内の免震建物の動:その1~3[A].日本建築学会大会学術講演梗概集[C].2005,B-2:653-658.
[12]曲哲,叶列平.“破坏-安全”结构抗震理念及其应用[J].震灾防御技术,2009,4(3):241-255.
[13]日本建築学会.阪神淡路大震災調査報告-建築編-1:鉄筋コンクリ?ト造建築物[R].東京:1997.
[14]叶列平,李易,潘鹏.漩口中学建筑震害分析[J].建筑结构,2009,39(11):54-57.
[15]叶列平,程光煜,陆新征,等.简论结构抗震的鲁棒性[J].建筑结构,2008,38(6):11-15.
[16]Earthquake Engineering Research Institute(EERI).Observations on building damage from Francisco Medina[DB/OL].[2010-03-20].ht-tp://www.eqclearinghouse.org/20100227-chile/general-information/observations-on-building-damage-from-francisco-medina/.
[17]Earthquake Engineering Research Institute(EERI).Observations from Jack Moehle,3/12/2010[DB/OL].[2010-03-20].http://www.eqclearinghouse.org/20100227-chile/general-information/observations-from-jack-moehle-3122010
[18]曲哲.摇摆墙-框架结构抗震损伤机制控制及设计方法研究[D].北京:清华大学,2010.
[19]GB50010-2002混凝土结构设计规范[S].
[20]Wada A,Qu Z,Ito H.et al.Seismic retrofit using rocking walls and steel dampers[C]//.ATC&SEI Conference on Improving the Seismic Per-formance of Existing Buildings and Other Structures,ASCE,San Francisco,US,Dec.2009,in CD-ROM.
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