汶川地震灾后兰成渝成品油管道桥梁的检测与评估
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摘要
"5.12"汶川特大地震后,对"兰成渝"成品油管道线路中受损的五座桥梁进行了检测与评估。重点结合其中震损最严重的羊木桥的检测与评估工程实例,论述了混凝土空心板式梁桥的震害损伤检测内容与方法;采用桥梁结构有限元分析软件建立了结构模型进行计算分析;综合以上结果对桥梁承载功能进行了总体评估。依据检测与评估结论进而提出主梁、支座、盖梁等维修、加固建议。总结目前检测与评估的经验,对桥梁的抗震设计如限制主梁位移等提出一些建议。
After "5·12" Wenchuan earthquake,inspection and evaluation on 5 damaged bridges on "Lanzhou-Chengdu-Chongqing" Oil Pipeline were carried out.With an engineering example of Yangmu bridge which is the most badly damaged,the inspection contents and methods of concrete hollow slab beam bridge were discussed.The structure models were builded for calculation and anylysis by the application of finite element analysis software.Then the load-carrying capacity was evaluated totally based on the above results.Recommendations of repair and reinforcement on girders,supports,bent cap,etc.were proposed,and the experience and defects of current inspection and evaluation were summarized.Further more,the application and development of bridge inspection and evaluation were discussed,and some suggestions for aseismatic design of bridges such as restricting the displacement of girders were put forward.
After "5·12" Wenchuan earthquake,inspection and evaluation on 5 damaged bridges on "Lanzhou-Chengdu-Chongqing" Oil Pipeline were carried out.With an engineering example of Yangmu bridge which is the most badly damaged,the inspection contents and methods of concrete hollow slab beam bridge were discussed.The structure models were builded for calculation and anylysis by the application of finite element analysis software.Then the load-carrying capacity was evaluated totally based on the above results.Recommendations of repair and reinforcement on girders,supports,bent cap,etc.were proposed,and the experience and defects of current inspection and evaluation were summarized.Further more,the application and development of bridge inspection and evaluation were discussed,and some suggestions for aseismatic design of bridges such as restricting the displacement of girders were put forward.
引文
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[12]张劲泉,徐岳,叶见曙,等.公路旧桥检算分析指南及工程实例[M].北京:人民交通出版社,2007.
[2]JTG H11-2004.中华人民共和国交通部.公路桥涵养护规范[S].北京:人民交通出版社,2004.
[3]Yang Min,Jin Xinhua.The cause analysis and control strate-gies on typical damage of concrete hollow slab beam bridge[J].Urban Roads Bridges&Flood Control,2008,8(8):112-115.[杨敏,靳欣华.混凝土空心板梁桥典型病害成因分析及防治策略[J].城市道桥与防洪,2008,8(8):112-115.]
[4]Ministry of Transport of the People’s Republic of China.JTG F80/1-2004 Quality Inspection and Evaluation Stand-ards for Highway Engineering[S].Beijing:China Commu-nications Press,2004.[JTG F80/1-2004.中华人民共和国交通部.公路工程质量检验评定标准[S].北京:人民交通出版社,2004.]
[5]中华人民共和国交通部.公路旧桥承载能力鉴定方法(试行)[M],北京:人民交通出版社,1988.
[6]刘来君,赵小星.桥梁加固设计施工技术[M].北京:人民交通出版社,2004.
[7]单成林.旧桥加固设计原理及计算示例[M].北京:人民交通出版社,2007.
[8]刘世友,郭景琴,史剑发.建设大型梁式桥主梁运输机械的探讨———介绍一种新型运梁车[J].内蒙古公路与运输,2001,71:149-150.
[9]Ministry of Transport of the People’s Republic of China.JTG 004-89 Code for aseismic design of design of highway[S].Beijing:China Communications Press,1989.[中华人民共和国交通部.JTG 004—89公路工程抗震设计规范[S].北京:人民交通出版社,1989.]
[10]Ministry of Transport of the People’s Republic of China.JTG/TB02-01-2008 Guidelines for Seismic Design ofHighway Bridges[S].Beijing:China CommunicationsPress,2008.[中华人民共和国交通部.JTG/T B02-01-2008公路桥梁抗震设计细则[S].北京:人民交通出版社,2008.]
[11]Ma Yali,Wang Dongwei,Zhao Zhuo.Inspection and eval-uation of load-bearing capacity of existing prestressed con-crete hollowslab bridge[J].Journal of Highway and Trans-portation Research and Development,2008,8(25):76-81.[马亚丽,王东威,赵卓.既有预应力混凝土空心板桥承载力的检测与评定[J].公路交通科技,2008,8(25):76-81.]
[12]张劲泉,徐岳,叶见曙,等.公路旧桥检算分析指南及工程实例[M].北京:人民交通出版社,2007.
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