群体涵洞地震易损性分析方法研究
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摘要
提出涵洞与路段、桥梁、隧道等宜同为震害因子,参与研究区域内交通系统工程的震害预测。通过研究多种用于建立桥梁等构筑物地震易损性分析方法的理论基础,依据参与因子应具备兼容性原则,并基于四川汶川地震中公路涵洞的震害分析和破坏等级划分得出的结论,选取并论述用于涵洞易损性分析的震害影响因素的特点,给出分类应用说明。利用汶川地震中陇南公路总段所辖100道涵洞震害资料,采用最小二乘法原理,建立用于计算群体涵洞震害指数的统计回归模型;提出评价破坏等级的经验公式、建议系数值和临界值;结合路桥震害评估成果和实际经验给出二次评判方法和修正系数参考值。并采用SUV法进行该方法的适用性论证,提出方法的局限性和成因,给出方法改进建议。
The viewpoint of taking the culvert,road,bridge,tunnel,etc.as the earthquake damage factors and make them participate in the earthquake damage prediction of transportation system was proposed.Through studying theoretical basis of many seismic vulnerability methods for those structures such as bridges,the characteristics,classification and application of the factors were discussed according to the compatibility principle of the factors,analysis and classification of earthquake damage to highway culvert in Wenchuan earthquake.Based on the seismic damage documents of 100 culverts located in Longnan Highway due to the great 5.12 Wenchuan earthquake in Sichuan Province of China,a statistical regression model for calculating damage index of group culverts by using the least square method was established.The empirical formula,corresponding empirical coefficient and critical values for assessing earthquake damage were then determined.The twice-evaluation method and reference value of correction coefficient were suggested by combining the assessment results of the earthquake damage of road and bridge with practical experiences.The applicability of the proposed method was validated by the SUV method,the limitations of the proposed method and their causes were pointed out,and furthermore,the improvement suggestions were given.
The viewpoint of taking the culvert,road,bridge,tunnel,etc.as the earthquake damage factors and make them participate in the earthquake damage prediction of transportation system was proposed.Through studying theoretical basis of many seismic vulnerability methods for those structures such as bridges,the characteristics,classification and application of the factors were discussed according to the compatibility principle of the factors,analysis and classification of earthquake damage to highway culvert in Wenchuan earthquake.Based on the seismic damage documents of 100 culverts located in Longnan Highway due to the great 5.12 Wenchuan earthquake in Sichuan Province of China,a statistical regression model for calculating damage index of group culverts by using the least square method was established.The empirical formula,corresponding empirical coefficient and critical values for assessing earthquake damage were then determined.The twice-evaluation method and reference value of correction coefficient were suggested by combining the assessment results of the earthquake damage of road and bridge with practical experiences.The applicability of the proposed method was validated by the SUV method,the limitations of the proposed method and their causes were pointed out,and furthermore,the improvement suggestions were given.
引文
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[2]GB/T 19428—2003地震灾害预测及其信息管理系统技术规范[S].北京:中国标准出版社,2003(GB/T19428—2003 Code for earthquake disaster evaluation and its information management system[S].Beijing:Standards Press of China,2003(in Chinese))
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[7]王东升,冯启民.桥梁震害预测方法[J].自然灾害学报,2001,10(3):113-118(Wang Dongsheng,Feng Qiming.Seismic damage assessment methods for bridges[J].Journal of Natural Disasters,2001,10(3):113-118(in Chinese))
[8]Kubo K,Katayama T.A simple method for evaluating seismic safety of exiting bridge structures[C]//Proceedings of 6thWorld Conference on Earthquake Engineering.India:Sarita Prakashan,1977:1951-1956
[9]Friedland I M,Buckle I G,Lee G C.Highway bridge seismic design:summary of FHWA/MCEER project on seismic vulnerability of new highway construction[J].Earthquake Engineering and Engineering Vibration,2002:1(1):10-19
[10]杜鹏,谭潇,王东明,等.公路涵洞震害分析与破坏等级划分[J].地震工程与工程振动,2014,34(1):187-192(Du Peng,Tan Xiao,Wang Dongming,et al.Analysis and classification of earthquake damage to highway culverts[J].Earthquake Engineering and Engineering Vibration,2014,34(1):187-192(in Chinese))
[11]杜鹏,姜慧,王东明,等.陇南公路总段桥梁震害及易损性分析[J].地震工程与工程振动,2010,30(4):103-108(Du Peng,Jiang Hui,Wang Dongming,et al.Seismic damage and vulnerability analysis of bridges at Longnan highway[J].Earthquake Engineering and Engineering Vibration,2010,30(4):103-108(in Chinese))
[12]GB 50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010(GB 50011—2010 Code for seismic design of buildings[S].Beijing:China Architecture&Building Press,2010(in Chinese))
[13]谭潇,杜鹏,孙作玉.基于支持向量机的桥梁群体震害预测方法[J].华南地震,2013,33(4):41-46(Tan Xiao,Du Peng,Sun Zuoyu.Seismic Damage Prediction Method of Bridges Group Based on Support Vector Machine[J].South China Journal of Seismology,2013,33(4):41-46(in Chinese))
[2]GB/T 19428—2003地震灾害预测及其信息管理系统技术规范[S].北京:中国标准出版社,2003(GB/T19428—2003 Code for earthquake disaster evaluation and its information management system[S].Beijing:Standards Press of China,2003(in Chinese))
[3]朱美珍.公路桥梁震害预测的实用方法[J].同济大学学报,1994,22(3):279-283(Zhu Meizhen.A practical method for predicting seismic damage of highway bridges[J].Journal of Tongji University,1994,22(3):279-283(in Chinese))
[4]周长东,白倩楠,高日,等.大震铁路桥涵震害损失评估方法[J].北京交通大学学报,2013,37(1):85-89(Zhou Changdong,Bai Qiannan,Gao Ri,et al.Seismic hazard loss evaluation of railway bridge in large earthquake[J].Journal of Beijing Jiaotong University,2013,37(1):85-89(in Chinese))
[5]郭恩栋,赵钊,王再荣,等.改进的梁式公路桥震害评估方法[J].北京工业大学学报,2013,39(2):192-197(Guo Endong,Zhao zhao,Wang Zairong,et al.Improved methodology for seismic estimation of highway beam bridges[J].Journal of Beijing University of Technology,2013,39(2):192-197(in Chinese))
[6]李杰.生命线工程抗震——基础理论与应用[M].北京:科学出版社,2005:181-189
[7]王东升,冯启民.桥梁震害预测方法[J].自然灾害学报,2001,10(3):113-118(Wang Dongsheng,Feng Qiming.Seismic damage assessment methods for bridges[J].Journal of Natural Disasters,2001,10(3):113-118(in Chinese))
[8]Kubo K,Katayama T.A simple method for evaluating seismic safety of exiting bridge structures[C]//Proceedings of 6thWorld Conference on Earthquake Engineering.India:Sarita Prakashan,1977:1951-1956
[9]Friedland I M,Buckle I G,Lee G C.Highway bridge seismic design:summary of FHWA/MCEER project on seismic vulnerability of new highway construction[J].Earthquake Engineering and Engineering Vibration,2002:1(1):10-19
[10]杜鹏,谭潇,王东明,等.公路涵洞震害分析与破坏等级划分[J].地震工程与工程振动,2014,34(1):187-192(Du Peng,Tan Xiao,Wang Dongming,et al.Analysis and classification of earthquake damage to highway culverts[J].Earthquake Engineering and Engineering Vibration,2014,34(1):187-192(in Chinese))
[11]杜鹏,姜慧,王东明,等.陇南公路总段桥梁震害及易损性分析[J].地震工程与工程振动,2010,30(4):103-108(Du Peng,Jiang Hui,Wang Dongming,et al.Seismic damage and vulnerability analysis of bridges at Longnan highway[J].Earthquake Engineering and Engineering Vibration,2010,30(4):103-108(in Chinese))
[12]GB 50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010(GB 50011—2010 Code for seismic design of buildings[S].Beijing:China Architecture&Building Press,2010(in Chinese))
[13]谭潇,杜鹏,孙作玉.基于支持向量机的桥梁群体震害预测方法[J].华南地震,2013,33(4):41-46(Tan Xiao,Du Peng,Sun Zuoyu.Seismic Damage Prediction Method of Bridges Group Based on Support Vector Machine[J].South China Journal of Seismology,2013,33(4):41-46(in Chinese))
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