不中断交通桥梁静载试验的可行性分析  

Feasibility Analysis on Static Load Test of Uninterrupted Traffic Bridge

作　　者：王振吉 Wang Zhenji(Liaoning Provincial Transportation Planning and Design Institute Co.,Ltd.,Shenyang 110166,China)

机构地区：[1]辽宁省交通规划设计院有限责任公司,沈阳市110166

出　　处：《北方交通》2022年第6期5-8,共4页Northern Communications

基　　金：辽宁省交通科技项目(201915)。

摘　　要：针对桥梁传统静载试验需要全封闭交通的问题,提出了一种在不中断交通状态下的静载试验方法,并以某实际工程为背景,对预应力混凝土简支T梁桥在移动荷载作用下静载试验主要控制点的挠度、应变进行研究,与传统静载试验做对比分析,试验结果表明在不中断交通状态下进行桥梁静载试验具有可行性。Aiming at the problem that the static load test on the traditional bridge needs fully closed traffic,a kind of static load test method in a state of uninterrupted traffic is put forward.Based on a practical project,the deflection and strain of the main control points of the static load test on the prestressed concrete simply supported T-beam bridge under the action of moving load are studied and the contrastive analysis is carried out on the traditional static load test.The test results show that,it is feasible to carry out the static load test on the bridge in a state of uninterrupted traffic.

关 键 词：不中断交通 桥梁静载试验 预应力混凝土简支T梁 可行性分析 

分 类 号：U446[建筑科学—桥梁与隧道工程]