基于塑性变形的钢结构地震损伤量化
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摘要
目的进行钢结构建筑在地震作用下损伤评估的量化研究.方法采用弹塑性损伤模型模拟强震作用下钢结构建筑损伤状况,以EL-Centro地震波做为输入地震力,并借助ABAQUS进行强震作用下结构的弹塑性时程计算.通过对比地震前后的钢结构模态变化,且在多高层钢结构结构性能水准进行了指数化处理的前提下,确定结构层间及整体损伤系数.结果对某九层钢结构地震损伤数值模拟的量化研究,结构整体损伤指数为0.139,表明结构处于轻微破坏,在轻微破坏中且处于中等程度,基本符合预期结果.结论相对于定性化描述,损伤指数的给出更能准确描述结构的破坏程度.应进一步加强钢结构地震作用下损伤演化的研究,使得整体损伤指数的确定更加合理化.为钢结构震后的健康诊断及安全评估提供准确依据.
This paper conducted the steel structure building damage quantitative research under the earthquake affects,studied steel structure building key parts damaged under the action of earthquake by using the elastic and plastic damage model.By comparing before and after the earthquake of steel structure modal changes,and also under the high-level steel structure performance standard index processing,determined storey and the overall injury factors.With the EL-Centro as input of earthquake seismic wave power,whole damage index of a nine floors steel structure is 0.139.The results show that the degree of damage better meets expectations.Finally,we should strengthen the research of structure key parts damage,and provide accurate basis for steel structure of health diagnosis and safety assessment after an earthquake.
This paper conducted the steel structure building damage quantitative research under the earthquake affects,studied steel structure building key parts damaged under the action of earthquake by using the elastic and plastic damage model.By comparing before and after the earthquake of steel structure modal changes,and also under the high-level steel structure performance standard index processing,determined storey and the overall injury factors.With the EL-Centro as input of earthquake seismic wave power,whole damage index of a nine floors steel structure is 0.139.The results show that the degree of damage better meets expectations.Finally,we should strengthen the research of structure key parts damage,and provide accurate basis for steel structure of health diagnosis and safety assessment after an earthquake.
引文
[1]Federal Emergency Management Agency.FEMA273.Guidelines for seismic rehabilitation of buildings[S].Washington,DC:[s.n.],1997.
[2]Federal Emergency Management Agency.FEMA 274Commentary on the guidelines for seismic Rehabili-tation of buildings[S].Washington,DC:[s.n.],1997.
[3]Applied Technology Council.ATC-40 Seismic evalu-ation and retrofit of concrete buildings[S].RedwoodCity,California:[s.n.],1996.
[4]罗奇峰,王玉梅.结构性能设计理论及其发展趋势[C]//第五届全国地震工程学术会议,北京:[出版者不详],1998,508-513.(Luo Jifeng,Wang Yumei.The structure perform-ance design theory and its development trend[C]//The fifth national earthquake engineering academicconference proceedings(Ⅱ).Beijing:[s.n.],1998,508-513.)
[5]罗永峰,张立华,贺明玄.上海市《钢结构检测与鉴定技术规程》编制简介[J].钢结构,200910(24):57-61.(Luo Yongfeng,Zhang Lihua,He Mingxuan.The in-troduction of the steel structure detection and identifi-cation of technical regulations of Shanghai[J].SteelStructure,2009,10(24):57-61.)
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[7]中华人民共和国建设部.JGJ116–98建筑抗震加固技术规程[S].北京:中国建筑工业出版社,1999.(The ministry of construction of the People's Repub-lic of China.JGJ116–98 Building the seismicstrengthening technology procedures[S].Beijing:China architeture&buiding press,1999.)
[8]张敬书.我国抗震鉴定和加固技术的发展[J].工程抗震与加固改造,2004(5):33-39.(Zhang Jingshu.Aseismatic appraisal and reinforce-ment technique in our country[J].Engineering Anti-seismic and Reinforcement and Reconstruction,2004(5):33-39.)
[9]程绍革.GB50023《建筑抗震鉴定标准》修订介绍[J].工程抗震与加固改造,2010,32(1):33-39.(Cheng Shaoge.GB50023 The introduction of the a-seismatic appraisal standard of building revision[J].Engineering anti-seismic and reinforcement and re-construction,2010,32(1):33-39.)
[10]俞国音,杨建平.新编《钢结构检测评定及加固技术规程》(YB9257-96)介绍2[J].钢结构,1998,13(1):37-46.(Yu Guoyin,Yang Jianping.The introduction of nowSteel structure examination and evaluation andstrengthening technical procedures(YB9257-96)[J]Steel Structure,1998,13(1):37-46.)
[11]上海市建设和管理委员会.DG/TJ 08-2011-2007 J10973-2007上海市工程建设规范,钢结构检测鉴定技术规程[S].上海:[出版者不详]2007.(Shanghai construction and management committee.DG/TJ 08-2011-2007 J10973-2007 Shanghaiengineering construction norms,Steel structure detec-tion and identification procedures[S].Shanghai:[s.n.],2007.)
[12]赵成文,宋波.轻钢结构住宅支撑体系抗震性能研究[J].沈阳建筑大学学报:自然科学版,2006(4):571-574.(Zhao Chengwen,Song Bo.Seismic research ofbraced frame of light weight steel structure[J].Jour-nal of Shenyang Jianzhu University:Natural Science,2006(4):571-574.)
[13]王苏岩,王春生,李淑媛.建筑结构现场检测方法评析与展望[J].沈阳建筑大学学报:自然科学版,2000(1):49-52.(Wang Suyan,Wang Chunsheng,Li Shuyuan.Re-view and advances on site detecting method of build-ing structures[J].Journal of Shenyang Jianzhu Uni-versity:Natural Science,2000(1):49-52.)
[14]Krawinkler H,Zohrei M.Cumulative damage in steelstructures subjected to earthquake ground motions[J].Computers&Structures,1983,16(1/4):531-541.
[15]Chai Y H,Romstad K M.Energy-based linear dam-age model for high-intensity seismic loading[J].Joumal of Structural Engineering,ASCE,1995,121(5):857-864.
[16]欧进萍,牛荻涛,王光远.多层非线性抗震钢结构的损伤估计与优化设计[J].计算结构力学及其应用,1992,9(2):171-179.(Ou Jinping,Niu Ditao,Wang Guangyuan.Multi-layer nonlinear seismic steel structure of the damageestimates and the optimization design[J].StructuralMechanics Calculation and Applications,1992,9(2):171-179.)
[17]Park Y J,Ang A H S.Mechanical seismic damagemodel for reinforced concrete[J].Journal of Struc-tural Engineering,1985,111:722-739.
[18]王朝波.既有多高层钢框架抗震鉴定指标体系及分析方法研究[D].上海:同济大学,2007.(Wang Chaobo.The research of aseismatic appraisalindex system and analysis method of high-rise steelframe[D].Shanghai:The civil engineering collegeof Tongji university,2007.
[2]Federal Emergency Management Agency.FEMA 274Commentary on the guidelines for seismic Rehabili-tation of buildings[S].Washington,DC:[s.n.],1997.
[3]Applied Technology Council.ATC-40 Seismic evalu-ation and retrofit of concrete buildings[S].RedwoodCity,California:[s.n.],1996.
[4]罗奇峰,王玉梅.结构性能设计理论及其发展趋势[C]//第五届全国地震工程学术会议,北京:[出版者不详],1998,508-513.(Luo Jifeng,Wang Yumei.The structure perform-ance design theory and its development trend[C]//The fifth national earthquake engineering academicconference proceedings(Ⅱ).Beijing:[s.n.],1998,508-513.)
[5]罗永峰,张立华,贺明玄.上海市《钢结构检测与鉴定技术规程》编制简介[J].钢结构,200910(24):57-61.(Luo Yongfeng,Zhang Lihua,He Mingxuan.The in-troduction of the steel structure detection and identifi-cation of technical regulations of Shanghai[J].SteelStructure,2009,10(24):57-61.)
[6]中华人民共和国建设部.GB50023-95建筑抗震鉴定标准[S].北京:中国建筑工业出版社,1995.(The ministry of construction of the People's Repub-lic of China.GB50023-95 Building aseismic accredi-ting standards[S]Beijing:China Architecture&Building Press,1995.)
[7]中华人民共和国建设部.JGJ116–98建筑抗震加固技术规程[S].北京:中国建筑工业出版社,1999.(The ministry of construction of the People's Repub-lic of China.JGJ116–98 Building the seismicstrengthening technology procedures[S].Beijing:China architeture&buiding press,1999.)
[8]张敬书.我国抗震鉴定和加固技术的发展[J].工程抗震与加固改造,2004(5):33-39.(Zhang Jingshu.Aseismatic appraisal and reinforce-ment technique in our country[J].Engineering Anti-seismic and Reinforcement and Reconstruction,2004(5):33-39.)
[9]程绍革.GB50023《建筑抗震鉴定标准》修订介绍[J].工程抗震与加固改造,2010,32(1):33-39.(Cheng Shaoge.GB50023 The introduction of the a-seismatic appraisal standard of building revision[J].Engineering anti-seismic and reinforcement and re-construction,2010,32(1):33-39.)
[10]俞国音,杨建平.新编《钢结构检测评定及加固技术规程》(YB9257-96)介绍2[J].钢结构,1998,13(1):37-46.(Yu Guoyin,Yang Jianping.The introduction of nowSteel structure examination and evaluation andstrengthening technical procedures(YB9257-96)[J]Steel Structure,1998,13(1):37-46.)
[11]上海市建设和管理委员会.DG/TJ 08-2011-2007 J10973-2007上海市工程建设规范,钢结构检测鉴定技术规程[S].上海:[出版者不详]2007.(Shanghai construction and management committee.DG/TJ 08-2011-2007 J10973-2007 Shanghaiengineering construction norms,Steel structure detec-tion and identification procedures[S].Shanghai:[s.n.],2007.)
[12]赵成文,宋波.轻钢结构住宅支撑体系抗震性能研究[J].沈阳建筑大学学报:自然科学版,2006(4):571-574.(Zhao Chengwen,Song Bo.Seismic research ofbraced frame of light weight steel structure[J].Jour-nal of Shenyang Jianzhu University:Natural Science,2006(4):571-574.)
[13]王苏岩,王春生,李淑媛.建筑结构现场检测方法评析与展望[J].沈阳建筑大学学报:自然科学版,2000(1):49-52.(Wang Suyan,Wang Chunsheng,Li Shuyuan.Re-view and advances on site detecting method of build-ing structures[J].Journal of Shenyang Jianzhu Uni-versity:Natural Science,2000(1):49-52.)
[14]Krawinkler H,Zohrei M.Cumulative damage in steelstructures subjected to earthquake ground motions[J].Computers&Structures,1983,16(1/4):531-541.
[15]Chai Y H,Romstad K M.Energy-based linear dam-age model for high-intensity seismic loading[J].Joumal of Structural Engineering,ASCE,1995,121(5):857-864.
[16]欧进萍,牛荻涛,王光远.多层非线性抗震钢结构的损伤估计与优化设计[J].计算结构力学及其应用,1992,9(2):171-179.(Ou Jinping,Niu Ditao,Wang Guangyuan.Multi-layer nonlinear seismic steel structure of the damageestimates and the optimization design[J].StructuralMechanics Calculation and Applications,1992,9(2):171-179.)
[17]Park Y J,Ang A H S.Mechanical seismic damagemodel for reinforced concrete[J].Journal of Struc-tural Engineering,1985,111:722-739.
[18]王朝波.既有多高层钢框架抗震鉴定指标体系及分析方法研究[D].上海:同济大学,2007.(Wang Chaobo.The research of aseismatic appraisalindex system and analysis method of high-rise steelframe[D].Shanghai:The civil engineering collegeof Tongji university,2007.
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