地下管线跨越断层地震反应拟静力研究
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摘要
对于跨越活动断层埋地管线地震反应问题,根据实际管线埋设情况,采用有限元实体简化模型,并在管段有效计算长度范围内设置弹性支座,对管土体系施加等效位移荷载,利用拟静力方法对断层运动引起的管线地震反应进行了计算,通过分析,考察了断层位错量,跨越角度,贯通裂缝宽度和径厚比等因素对管线地震反应结果的影响,得出了管线地震反应的一般运动规律,同时认为适当地设置弹性支座有利于管线有效抵抗断层运动造成的破坏作用.
In this paper,the problem of earthquake response of buried pipeline when crossing active fault is considered.Based on the real condition of burying pipeline,simplified finite element method is used to build numerical model,with setting elastic supports at the range of effective length of the calculation and put equivalent displacement load on the pipe-soil system,pseudo-static method is adopted to analyze the earthquake response of buried pipeline.The influence of sensitive factors such as displacement of active fault,crossing angle,width of cranny and ratio of diameter and thickness on the result of earthquake response of buried pipeline is researched,and the common law of earthquake response of buried pipeline is summarized,the conclusions indicates that setting elastic supports properly is a kind of measure which can benefit buried pipeline resist the movement of active fault.
In this paper,the problem of earthquake response of buried pipeline when crossing active fault is considered.Based on the real condition of burying pipeline,simplified finite element method is used to build numerical model,with setting elastic supports at the range of effective length of the calculation and put equivalent displacement load on the pipe-soil system,pseudo-static method is adopted to analyze the earthquake response of buried pipeline.The influence of sensitive factors such as displacement of active fault,crossing angle,width of cranny and ratio of diameter and thickness on the result of earthquake response of buried pipeline is researched,and the common law of earthquake response of buried pipeline is summarized,the conclusions indicates that setting elastic supports properly is a kind of measure which can benefit buried pipeline resist the movement of active fault.
引文
[1][日]高田至郎.ライフララン地震工学[M].日本东京:共立出版株式会社,1991.
[2]郭恩栋,王东升,陆鸣,等.青新交界8.1级地震生命线工程震害[J].地震工程与工程振动,2002,22(3):77-81.
[3]A.C,格赫曼著.管道的抗震设计施工与监护[M].刘昆译.北京:地震出版社,1992.
[4]侯忠良.地下管线抗震[M].北京:学术出版社,1990.
[5]郭恩栋,冯启民.跨断层埋地钢管道抗震计算方法研究[J].地震工程与工程振动,1999,21(4):43-47.
[6]王焕定,王伟.有限单元法教程[M].哈尔滨:哈尔滨工业大学出版社,2003.
[7]赵林.跨越断层管道屈曲分析及模拟与仿真技术研究[D].哈尔滨:中国地震局工程力学研究所,2000.8.
[8]蒋彭年.土的本构关系[M].北京:科学出版社,1982.
[9]AI-WENLIU,SHIRO TAKADA.Study on the performances oftwo large-diameter steel pipelines at fault crossing in Kocaeliand Ji-ji earthquake[C]//Proceedings of the Fourth China-Japan-USA Trilateral symposium on Lifeline Earthquake Engi-neering,Qingdao,China,2002,9:153-168.
[10]TEOMAN A,BOR-JENLEE.Tension/bending behavior of bur-ied pipelined under large ground deformations in active fault[C]//Lifeline Earthquake Engineering proceedings of the ThirdU.S.Conference,Los Angles,Dalifornia,1991,8:226-233.
[11]YAW-JENG CHIOU,SHUE-YEONG CHI.Beam and shellmodes of buckling of buried pipes induced by compressiveground failure[C]//Lifeline Earthquake Engineering proceed-ings of the Fourth U.S.Conference,San Francisco,California,1995,8:176-187.
[12]AI-WEN LIU,SHIRO TAKADA.Study on the performancesof two large-diameter steel pipelines at fault crossing in Kocae-li and Ji-ji earthquake[C]//Proceedings of the Fourth China-Japan-USA Trilateral symposium on Lifeline EarthquakeEngineering,Qingdao,China,2002,9:153-168.
[2]郭恩栋,王东升,陆鸣,等.青新交界8.1级地震生命线工程震害[J].地震工程与工程振动,2002,22(3):77-81.
[3]A.C,格赫曼著.管道的抗震设计施工与监护[M].刘昆译.北京:地震出版社,1992.
[4]侯忠良.地下管线抗震[M].北京:学术出版社,1990.
[5]郭恩栋,冯启民.跨断层埋地钢管道抗震计算方法研究[J].地震工程与工程振动,1999,21(4):43-47.
[6]王焕定,王伟.有限单元法教程[M].哈尔滨:哈尔滨工业大学出版社,2003.
[7]赵林.跨越断层管道屈曲分析及模拟与仿真技术研究[D].哈尔滨:中国地震局工程力学研究所,2000.8.
[8]蒋彭年.土的本构关系[M].北京:科学出版社,1982.
[9]AI-WENLIU,SHIRO TAKADA.Study on the performances oftwo large-diameter steel pipelines at fault crossing in Kocaeliand Ji-ji earthquake[C]//Proceedings of the Fourth China-Japan-USA Trilateral symposium on Lifeline Earthquake Engi-neering,Qingdao,China,2002,9:153-168.
[10]TEOMAN A,BOR-JENLEE.Tension/bending behavior of bur-ied pipelined under large ground deformations in active fault[C]//Lifeline Earthquake Engineering proceedings of the ThirdU.S.Conference,Los Angles,Dalifornia,1991,8:226-233.
[11]YAW-JENG CHIOU,SHUE-YEONG CHI.Beam and shellmodes of buckling of buried pipes induced by compressiveground failure[C]//Lifeline Earthquake Engineering proceed-ings of the Fourth U.S.Conference,San Francisco,California,1995,8:176-187.
[12]AI-WEN LIU,SHIRO TAKADA.Study on the performancesof two large-diameter steel pipelines at fault crossing in Kocae-li and Ji-ji earthquake[C]//Proceedings of the Fourth China-Japan-USA Trilateral symposium on Lifeline EarthquakeEngineering,Qingdao,China,2002,9:153-168.
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