预应力混凝土简支T梁桥荷载试验  

Research on Load Test of Prestressed Concrete Simply Supported T-beam Bridge

作　　者：徐艳[1,2] 谭红梅[1,2] 曾勇[1,2] 魏星 范和平 罗小清 XU Yan;TAN Hongmei;ZENG Yong;WEI Xing;FAN Heping;LUO Xiaoqing(State Key Laboratory of Mountain Bridge and Tunnel Engineering,Chongqing Jiaotong University,Chongqing 400074,China;Mountain Bridge and Materials Engineering Research Center of Ministry of Education,Chongqing Jiaotong University,Chongqing 400074,China;Investment Business Division of CCCC Second Harbour Engineering Co.Ltd.,Chongqing 400074,China;Chongqing Changda Construction Investment Company,Chongqing 404100,China)

机构地区：[1]重庆交通大学山区桥梁与隧道工程国家重点实验室,重庆400074 [2]重庆交通大学山区桥梁结构与材料教育部工程研究中心,重庆400074 [3]中交第二航务工程局有限公司投资事业部,重庆400074 [4]忠县畅达建设投资有限公司,重庆404100

出　　处：《洛阳理工学院学报（自然科学版）》2022年第1期13-20,共8页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：重庆市留学人员回国创新项目(CX2020117);重庆市自然科学基金面上项目(CSTC2019JCYJ-MSXMX0624);重庆交通大学山区桥梁结构与材料教育部工程研究中心开放基金资助(QLGCZX-JJ2017-5).

摘　　要：结合某预应力混凝土T梁桥,介绍了静力荷载试验的内容与方法,包括测点布置、荷载布置、加载方式以及试验结果与计算结果的对比分析等。通过静力荷载试验与有限元软件相结合的手段,测试桥跨结构强度、刚度,检验桥跨结构在正常使用状态下承载能力和结构变形是否符合设计要求。结果表明,该桥结构处于正常受力状态,结构刚度、强度均满足规范要求。Combined with a prestressed concrete T-beam bridge,this paper introduces the contents and methods of static load test of the bridge,including the arrangement of measuring points,load arrangement,loading mode,and the comparative analysis of test results and calculation results.Through the combination of static load test and finite element software,the strength and stiffness of the bridge span structure are tested to check whether the bearing capacity and structural deformation of the bridge span structure in normal condition meet the design requirements.The test results show that the bridge structure is in normal stress state,and the structural stiffness and strength meet the specification requirements.

关 键 词：桥梁工程 静力荷载试验 简支T梁 承载能力 结构变形 

分 类 号：U446[建筑科学—桥梁与隧道工程]