摘要
结合某单箱双室预应力混凝土连续梁桥工程,介绍了该桥静力荷载试验的内容与方法,其中包括测点布置、荷载布置、加载制度以及试验结果与计算结果的对比分析等。通过静力荷载试验来测试桥跨结构强度、刚度,以检验桥跨结构在正常使用状态下的承载能力和结构变形是否符合设计要求。试验结果表明: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 the project of a single-box and double-chamber prestressed concrete continuous beam bridge,the contents and methods of static load test of the bridge are introduced,including the arrangement of measuring points,load arrangement,loading system and the comparative analysis of test results and calculation results.The strength and stiffness of bridge span structure are tested by static load test to verify whether the bearing capacity and structural deformation of bridge span structure in normal service state meet the design requirements.The test results show that the bridge structure is under normal stress,and the structural stiffness and strength meet the requirements of specifications.
作者
曾勇
薛晓芳
魏星
范和平
罗小清
肖光烈
ZENG Yong;XUE Xiao-fang;WEI Xing;FAN He-ping;LUO Xiao-qing;XIAO Guang-lie(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;Chongqing Yongchuan Highway Service Center,Chongqing 400074,China)
出处
《河南城建学院学报》
CAS
2021年第2期1-9,共9页
Journal of Henan University of Urban Construction
基金
国家自然科学基金项目(51478071)。
关键词
桥梁工程
静力荷载试验
预应力混凝土连续梁桥
承载能力
bridge engineering
static loading test
prestressed concrete continuous beam bridge
carrying capacity
structural deformation