桥梁结构荷载试验分析与研究
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摘要
对金砂-汕樟立交桥的荷载试验结果进行分析,根据设计资料建立三维有限元模型,对相应工况进行模拟,通过模型计算值与实测挠度、应变与频率各参数的对比和分析,了解桥梁结构在各种作用力下的实际受力状态和工作状况,判别已建桥梁符合设计标准,满足使用要求。测试结果可以为有限元模型修正提供依据,同时也为桥梁使用状态评估、健康监测提供较可靠的基准模型。
This paper aims to demonstrate the built bridge still in accordance with design standards and satisfying the use requirement through analyzing the results of loading test on Jinsha-Shanzhang overpass.According to design information,a theoretical model is built for simulating each condition with the finite element analysis software Midas-Civil.A comparison is carried out over parameters such as deflection,strain and frequency to detect the actual mechanical behavior and operating condition of bridge structure under various working forces.The experimental results can provide basis and references for the rectification of finite element model and final acceptance of construction,also for the evaluation of service behavior and health monitoring of the bridge.
This paper aims to demonstrate the built bridge still in accordance with design standards and satisfying the use requirement through analyzing the results of loading test on Jinsha-Shanzhang overpass.According to design information,a theoretical model is built for simulating each condition with the finite element analysis software Midas-Civil.A comparison is carried out over parameters such as deflection,strain and frequency to detect the actual mechanical behavior and operating condition of bridge structure under various working forces.The experimental results can provide basis and references for the rectification of finite element model and final acceptance of construction,also for the evaluation of service behavior and health monitoring of the bridge.
引文
[1]MORI Y,ELLI NGWOOD B R.Maintaining reliability of concrete structures(Ⅰ):Role of inspection/repai[J].Journal of Structural Engi-neering,1994,120(3):824-845.
[2]MORI Y,ELLI NGWOOD B R.Maitaining reliability of concrete structures(Ⅱ):Opti muminspection/repai[J].Journal of Structural En-gineering,1994,120(3):846-862.
[3]李兆霞,李爱群,陈鸿天,等.大跨桥梁结构以健康监测和状态评估为目标的有限元模拟[J].东南大学学报(自然科学版)(Journal ofSoutheast University(Natural Science Edition)),2003,33(5):562-572.
[4]毛建伟.广义模糊综合安全评价模型及其在铁路桥梁评价中的应用[J].河北科技大学学报(Journal of Hebei University of Science andTechnology),2008,29(3):246-249.
[5]杨文渊,徐奔.桥梁维修与加固[M].北京:人民交通出版社,1994.
[6]高赞明,孙宗光,倪一清.基于振动方法的汲水门大桥损伤检测研究[J].地震工程与工程振动(Journal of Earthquake Engineering and En-gineering Vibration),2001,21(4):117-124.
[7]HOUSNER G W,BERGMAN L A,CAUGHEY T K,et al.Structural control:Past,present,and future[J].Journal of Engineering Me-chanics,1997,123(9):897-971.
[8]交通部公路科学研究所.大跨径混凝土桥梁的试验方法[M].北京:人民交通出版社,1982.
[9]交通部公路规划设计院.公路桥涵设计规范(合订本)[M].北京:人民交通出版社,1989.
[10]黄立新,邓子辰,侯秀慧.基于精细积分的桥梁移动荷载识别精度分析[J].河北科技大学学报(Journal of Hebei University of Scienceand Technology),2008,29(2):124-136.
[2]MORI Y,ELLI NGWOOD B R.Maitaining reliability of concrete structures(Ⅱ):Opti muminspection/repai[J].Journal of Structural En-gineering,1994,120(3):846-862.
[3]李兆霞,李爱群,陈鸿天,等.大跨桥梁结构以健康监测和状态评估为目标的有限元模拟[J].东南大学学报(自然科学版)(Journal ofSoutheast University(Natural Science Edition)),2003,33(5):562-572.
[4]毛建伟.广义模糊综合安全评价模型及其在铁路桥梁评价中的应用[J].河北科技大学学报(Journal of Hebei University of Science andTechnology),2008,29(3):246-249.
[5]杨文渊,徐奔.桥梁维修与加固[M].北京:人民交通出版社,1994.
[6]高赞明,孙宗光,倪一清.基于振动方法的汲水门大桥损伤检测研究[J].地震工程与工程振动(Journal of Earthquake Engineering and En-gineering Vibration),2001,21(4):117-124.
[7]HOUSNER G W,BERGMAN L A,CAUGHEY T K,et al.Structural control:Past,present,and future[J].Journal of Engineering Me-chanics,1997,123(9):897-971.
[8]交通部公路科学研究所.大跨径混凝土桥梁的试验方法[M].北京:人民交通出版社,1982.
[9]交通部公路规划设计院.公路桥涵设计规范(合订本)[M].北京:人民交通出版社,1989.
[10]黄立新,邓子辰,侯秀慧.基于精细积分的桥梁移动荷载识别精度分析[J].河北科技大学学报(Journal of Hebei University of Scienceand Technology),2008,29(2):124-136.
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