某下承式混凝土拱桥动静载试验分析  

Static and Dynamic Load Tests Analysis for a Bottom-road Concrete Tied Arch Bridge

作　　者：李本发[1] 

机构地区：[1]江苏省交通科学研究院股份有限公司,江苏南京210017

出　　处：《现代交通技术》2013年第3期33-36,共4页Modern Transportation Technology

摘　　要：对某主跨为86.1m的下承式混凝土系杆拱桥进行动静载试验,根据桥梁在活载作用下的弯矩包络图,确定桥梁的关键截面;通过桥梁关键截面挠度、应力实测值与理论值的对比分析,对该桥的承载能力进行评估;同时通过动载试验对该桥的动力特性进行分析。In this paper, a bottom-road concrete tied arch bridge which main span is 86.1 m is tested under static and dy- namic load. According to the bending moment envelope of the bridge under live load, the key section is determined, through analysis of bridge key section deflection, stress is compared between measurements and theoretical values, the bearing capac- ity of the bridge is evaluated. At the same time, dynamic characteristics of the bridge is analyzed through dynamic load test.

关 键 词：下承式混凝土拱桥 系杆拱桥 静载试验 动载试验 

分 类 号：U446.1[建筑科学—桥梁与隧道工程]