基于HAZUS平台的中国公路桥梁震害评估模型研究
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摘要
我国目前尚缺乏合理有效的公路桥梁震害评估模型。为促进我国公路桥梁震害评估系统的发展,基于HAZUS软件中使用的桥梁震害评估模型,对中国公路桥梁进行抗震等级分类,分别以1.0s时的谱加速度、地面峰值加速度和地面永久变形为指标,给出每类桥梁的震害评估模型参数,形成一个初步适用的中国公路桥梁震害评估模型。利用汶川地震后四川地区公路桥梁震害数据对该模型进行验证,结果表明该模型能较为准确地预测震害统计结果,从而证明该模型的合理性和适用性,可以为我国公路桥梁震害评估系统的发展提供一定的借鉴。
There is no effective seismic damage assessment model for highway bridges in China nowadays. This paper made an effort to promote the improvement of the seismic damage assessment system of China. Based on the models utilized in the HAZUS software, the classification according to the seismic resistance capacity for the highway bridges in China was conducted. For each class of the bridge, the seismic damage assessment parameters were assigned in terms of spectral acceleration at 1.0s, peak ground acceleration(PGA) and permanent ground deformation(PGD). Then a basic assessment model was formed which can be used for the highway bridges in China. The model was verified by the statistical results of the seismic damage of the highway bridges in Sichuan district under Wenchuan earthquake. It shows that the model proposed in this paper can predict the statistical seismic damage well, which demonstrates the model is reasonable and can provide references for the development of seismic damage assessment system in China.
There is no effective seismic damage assessment model for highway bridges in China nowadays. This paper made an effort to promote the improvement of the seismic damage assessment system of China. Based on the models utilized in the HAZUS software, the classification according to the seismic resistance capacity for the highway bridges in China was conducted. For each class of the bridge, the seismic damage assessment parameters were assigned in terms of spectral acceleration at 1.0s, peak ground acceleration(PGA) and permanent ground deformation(PGD). Then a basic assessment model was formed which can be used for the highway bridges in China. The model was verified by the statistical results of the seismic damage of the highway bridges in Sichuan district under Wenchuan earthquake. It shows that the model proposed in this paper can predict the statistical seismic damage well, which demonstrates the model is reasonable and can provide references for the development of seismic damage assessment system in China.
引文
[1]Kircher C A,Whitman R V,Holmes W T.HAZUS earthquake loss estimation methods[J].Natural Hazards Review,2006,7(2):45-59
[2]Rojahn C,Sharpe R L.Earthquake damage evaluation data for California,ATC-13[M].Washington:Applied Technology Council,1985
[3]Hwang H,刘晶波.地震作用下钢筋混凝土桥梁结构易损性分析[J].土木工程学报,2004,37(6):47-51(Hwang H,Liu Jingbo.Seismic fragility analysis of reinforced concrete bridges[J].China Civil Engineering Journal,2004,37(6):47-51(in Chinese))
[4]Bignell J L,La Fave J M.Analytical fragility analysis o f southern Illinois wall pier supported highway bridges[J].Earthquake Engineering and Structure Dynamics,2010,39(7):709–729
[5]Padgett J E,Des Roches R.Methodology for the development of a nalytical fragility curves for retrofitted b r i d g e s[J].E a r t h q u a k e E n g i n e e r i n g a n d S t r u c t u r e Dynami cs,2008;37(8):1157–1174
[6]Cosenza E,Manfredi G,Polese M.Simplified method to include cumulative damage in the seismic response of single-degree-of-freedom systems[J].Journal of Engineering Mechanics.2009,135(10):1081-1088
[7]Bignell J L,La Fave J M,Hawkins N M.Seismic vulnerability assessment of wall pier supported highway bridges using nonlinear pushover analyses[J].Engineering Struct ures.2005,27(14):2044-2063
[8]JTG D60—2004公路桥涵设计通用规范[S].北京:人民交通出版社,2004(JTG D60—2004 General code for design of highway bridges and culverts[S].Beijing:China Communications Press,2004(in Chinese))
[9]姚玲森.桥梁工程[M].北京:人民交通出版社,2005(Yao Lingsen.Bridge Engineering[M].Beijing:China Communications Press,2005(in Chinese))
[10]FEMA.HAZUS Technical Manual[M].Washington:FEMA,2003
[11]庄卫林,刘振宇,蒋劲松.汶川大地震公路桥梁震害分析及对策[J].岩石力学与工程学报,2009,28(7):1377-1387(Zhuang Weilin,Liu Zhenyu,Jiang Jinsong.Earthquake-induced damage analysis of highway bridges in Wenchuan earthquake and countermeasure s[J].Chinese Journal of Rock Mechanics and Engineering.2009,28(7):1377-1387(in Chinese))
[12]Tao Lai.汶川地震灾后调研和损失评估[R/OL].[2008-10-15].http://www.air-worldwide.com/publicationsitem.aspx?id=16068
[2]Rojahn C,Sharpe R L.Earthquake damage evaluation data for California,ATC-13[M].Washington:Applied Technology Council,1985
[3]Hwang H,刘晶波.地震作用下钢筋混凝土桥梁结构易损性分析[J].土木工程学报,2004,37(6):47-51(Hwang H,Liu Jingbo.Seismic fragility analysis of reinforced concrete bridges[J].China Civil Engineering Journal,2004,37(6):47-51(in Chinese))
[4]Bignell J L,La Fave J M.Analytical fragility analysis o f southern Illinois wall pier supported highway bridges[J].Earthquake Engineering and Structure Dynamics,2010,39(7):709–729
[5]Padgett J E,Des Roches R.Methodology for the development of a nalytical fragility curves for retrofitted b r i d g e s[J].E a r t h q u a k e E n g i n e e r i n g a n d S t r u c t u r e Dynami cs,2008;37(8):1157–1174
[6]Cosenza E,Manfredi G,Polese M.Simplified method to include cumulative damage in the seismic response of single-degree-of-freedom systems[J].Journal of Engineering Mechanics.2009,135(10):1081-1088
[7]Bignell J L,La Fave J M,Hawkins N M.Seismic vulnerability assessment of wall pier supported highway bridges using nonlinear pushover analyses[J].Engineering Struct ures.2005,27(14):2044-2063
[8]JTG D60—2004公路桥涵设计通用规范[S].北京:人民交通出版社,2004(JTG D60—2004 General code for design of highway bridges and culverts[S].Beijing:China Communications Press,2004(in Chinese))
[9]姚玲森.桥梁工程[M].北京:人民交通出版社,2005(Yao Lingsen.Bridge Engineering[M].Beijing:China Communications Press,2005(in Chinese))
[10]FEMA.HAZUS Technical Manual[M].Washington:FEMA,2003
[11]庄卫林,刘振宇,蒋劲松.汶川大地震公路桥梁震害分析及对策[J].岩石力学与工程学报,2009,28(7):1377-1387(Zhuang Weilin,Liu Zhenyu,Jiang Jinsong.Earthquake-induced damage analysis of highway bridges in Wenchuan earthquake and countermeasure s[J].Chinese Journal of Rock Mechanics and Engineering.2009,28(7):1377-1387(in Chinese))
[12]Tao Lai.汶川地震灾后调研和损失评估[R/OL].[2008-10-15].http://www.air-worldwide.com/publicationsitem.aspx?id=16068
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