新田长江大桥成桥静载试验研究  

Static loading test of Xintian Yangtze River Bridge

作　　者：周玉林 龙靖 ZHOU Yulin;LONG Jing(Chongqing Transportation Planning and Technology Development Center,Chongqing 400060,China;Chongqing Huasheng Testing Technology Co.,Ltd,Chongqing 400722,China)

机构地区：[1]重庆市交通规划和技术发展中心,重庆400060 [2]重庆华盛检测技术有限公司,重庆400722

出　　处：《湖南城市学院学报（自然科学版）》2023年第2期6-11,共6页Journal of Hunan City University:Natural Science

摘　　要：以新田长江大桥为工程背景,介绍了悬索桥的静载试验方法及试验结果,并对试验中各参数的实测值和理论值进行了对比分析.结果表明:选择温度较低、较稳定的时间段进行荷载试验,并采用温度补偿片时,钢箱梁应力分析可以不考虑温度对结构的影响;该桥控制截面的实测值与理论值符合性较好,其结构强度和刚度满足设计要求.Taking Xintian Yangtze River Bridge as the engineering background,this paper introduces the static loading test method and test results of the suspension bridge,and makes a comparative analysis of the measured and theoretical values of each parameter in the test.The results show that the influence of temperature on the structure can be ignored in the stress analysis of steel girder when the static loading test is carried out at a relatively stable time and temperature compensation plate is adopted.The measured value of the control section is in good agreement with the theoretical value,and the structural strength and stiffness meet the design requirements.

关 键 词：悬索桥 静载试验 温度应力 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]