结构鲁棒性及其分析要点刍议
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摘要
土木工程中,结构鲁棒性(国内规范始称整体稳固性)强调结构"在偶然局部损伤情况下,不致造成与此损伤起因(或程度)不相称的破坏"。考虑到鲁棒性对于防灾减灾的特殊意义,本文探讨和澄清鲁棒性分析的相关要点,包括它所考虑的结构状态及设计状况、"与起始事件无关"这一概念的内涵、结构体系与所处环境的相互作用等,为深入研究结构鲁棒性提供借鉴。
In civil engineering,structural robustness highlights the ability of a structure to accommodate any possible perturbations(for example,local damage) while keeping the resultant consequences not out of proportion to the extent of the original cause.In view of the significance of robustness,the present article discusses and clarifies the essential issues with regard to structural robustness analysis,including the structural states and design situations underlying,the connotation of the term of ‘threat-independent’,the structure-environment interactions,etc.The discussion would add value to extensive robustness analysis.
In civil engineering,structural robustness highlights the ability of a structure to accommodate any possible perturbations(for example,local damage) while keeping the resultant consequences not out of proportion to the extent of the original cause.In view of the significance of robustness,the present article discusses and clarifies the essential issues with regard to structural robustness analysis,including the structural states and design situations underlying,the connotation of the term of ‘threat-independent’,the structure-environment interactions,etc.The discussion would add value to extensive robustness analysis.
引文
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[3]叶列平,程光煜,陆新征,等.论结构抗震的鲁棒性[J].建筑结构,2008,38(6):11～15.
[4]方召欣.浅议Structural Robustness在结构工程中的定名[J].中国科技术语,2009,11(5):58～60.
[5]Schafer B W,Bajpai P.Stability degradation and redundancy indamaged structures[J].Engineering Structures,2005,27:1642～1651.
[6]Smith P P,Byfield M P,Goode D J.Building robustnessresearch during World WarⅡ[J].Journal of Performance ofConstructed Facilities(In press).
[7]Gulvanessian H.EN1990 Eurocode—Basis of structural design[J].Civil Engineering,2001,114:8～13.
[8]GB 50153～2008工程结构可靠性设计统一标准[S].北京:中国建筑工业出版社,2009.
[9]The Standing Committee on Structural Safety(SCOSS).10thReport of SCOSS[R].London:SETO Ltd,1994.
[10]Starossek U,Wolff M.Design of collapse-resistant structures[C]//Proc.JCSS&IABSE Workshop on Robustness of Structures.Watford,UK,2005.
[11]GB 50223-2008建筑工程抗震设防分类标准[S].
[12]方召欣,李惠强.结构鲁棒性与风险防控[J].工程力学,2007,24(增刊1):79～82.
[13]General Services Administration(GSA).Progressive collapseanalysis and design guidelines for new federal office buildings andmajor modernization project[M].Washington,DC:GeneralServices Administration,2003.
[14]Leyendecker E V,George F.Investigation of the Skyline Plazacollapse in Fairfax County,Virginia,BSS 94[R].Washington,DC:National Bureau of Standards,1977.
[15]Department of Buildings.New York City Building Code[S].New York:Department of Buildings,1998.
[16]Beeby A W.Safety of structures,and a new approach torobustness[J].The Structural Engineer,1999,77(4):16～21.
[17]Fang Zhaoxin(方召欣).Problems and prospects of structuralrobustness analysis[C]//Proc.International Symposium onInnovation&Sustainability of Structures in Civil Engineering2009(Vol.2).Guangzhou:South China University ofTechnology Press,2009:1703～1707.
[18]Fang Zhaoxin(方召欣),Li Huiqiang(李惠强).Robustness ofengineering structures and its role in risk mitigation[J].CivilEngineering and Environmental Systems,2009,26(3):223～230.
[19]叶耀先,冈田憲夫.地震灾害比较学[M].北京:中国建筑工业出版社,2008.
[20]王连成.工程系统论[M].北京:中国宇航出版社,2002.
[21]Knoll F,Vogel T.Design for robustness[C]//Proc.JCSS&IABSE Workshop on Robustness of Structures.Watford,UK,2005.
[22]Menzies J.Structural robustness[J].The Structural Engineer,2006,84(2):16～18.
[2]Ellingwood B R,Smilowitz R,Dusenberry D O,et al.Bestpractices for reducing the potential for progressive collapse inbuildings,NISTIR 7396[M].Gaithersburg:National Institute ofStandards and Technology,2007.1.
[3]叶列平,程光煜,陆新征,等.论结构抗震的鲁棒性[J].建筑结构,2008,38(6):11～15.
[4]方召欣.浅议Structural Robustness在结构工程中的定名[J].中国科技术语,2009,11(5):58～60.
[5]Schafer B W,Bajpai P.Stability degradation and redundancy indamaged structures[J].Engineering Structures,2005,27:1642～1651.
[6]Smith P P,Byfield M P,Goode D J.Building robustnessresearch during World WarⅡ[J].Journal of Performance ofConstructed Facilities(In press).
[7]Gulvanessian H.EN1990 Eurocode—Basis of structural design[J].Civil Engineering,2001,114:8～13.
[8]GB 50153～2008工程结构可靠性设计统一标准[S].北京:中国建筑工业出版社,2009.
[9]The Standing Committee on Structural Safety(SCOSS).10thReport of SCOSS[R].London:SETO Ltd,1994.
[10]Starossek U,Wolff M.Design of collapse-resistant structures[C]//Proc.JCSS&IABSE Workshop on Robustness of Structures.Watford,UK,2005.
[11]GB 50223-2008建筑工程抗震设防分类标准[S].
[12]方召欣,李惠强.结构鲁棒性与风险防控[J].工程力学,2007,24(增刊1):79～82.
[13]General Services Administration(GSA).Progressive collapseanalysis and design guidelines for new federal office buildings andmajor modernization project[M].Washington,DC:GeneralServices Administration,2003.
[14]Leyendecker E V,George F.Investigation of the Skyline Plazacollapse in Fairfax County,Virginia,BSS 94[R].Washington,DC:National Bureau of Standards,1977.
[15]Department of Buildings.New York City Building Code[S].New York:Department of Buildings,1998.
[16]Beeby A W.Safety of structures,and a new approach torobustness[J].The Structural Engineer,1999,77(4):16～21.
[17]Fang Zhaoxin(方召欣).Problems and prospects of structuralrobustness analysis[C]//Proc.International Symposium onInnovation&Sustainability of Structures in Civil Engineering2009(Vol.2).Guangzhou:South China University ofTechnology Press,2009:1703～1707.
[18]Fang Zhaoxin(方召欣),Li Huiqiang(李惠强).Robustness ofengineering structures and its role in risk mitigation[J].CivilEngineering and Environmental Systems,2009,26(3):223～230.
[19]叶耀先,冈田憲夫.地震灾害比较学[M].北京:中国建筑工业出版社,2008.
[20]王连成.工程系统论[M].北京:中国宇航出版社,2002.
[21]Knoll F,Vogel T.Design for robustness[C]//Proc.JCSS&IABSE Workshop on Robustness of Structures.Watford,UK,2005.
[22]Menzies J.Structural robustness[J].The Structural Engineer,2006,84(2):16～18.
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