In-situ dynamic loading test of a hybrid continuous arch bridge

被引：1
|
作者：
Gou, Hongye [1 ,2 ]
Li, Liang [1 ]
Hong, Yu [1 ]
Bao, Yi [3 ]
Pu, Qianhui [1 ]
机构：
[1] Southwest Jiaotong Univ, Sch Civil Engn, Dept Bridge Engn, Chengdu 610031, Peoples R China
[2] Southwest Jiaotong Univ, Minist Educ, Key Lab High Speed Railway Engn, Chengdu 610031, Peoples R China
[3] Stevens Inst Technol, Dept Civil Environm & Ocean Engn, Hoboken, NJ 07030 USA
来源：
STRUCTURAL ENGINEERING AND MECHANICS | 2021年 / 77卷 / 06期
基金：
中国国家自然科学基金;
关键词：
arch bridge; dynamic response; impact coefficient; pavement condition; truck loading test; RAILWAY BRIDGE; GIRDER BRIDGE; BEHAVIOR; VEHICLE; PERFORMANCE; VIBRATION; SYSTEM; BEAM;
D O I：
10.12989/sem.2021.77.6.809
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this study, the dynamic behavior of a three-span hybrid continuous arch bridge under vehicle loading is investigated. The natural vibration characteristics of the bridge were analyzed through pulsation test. In the dynamic loading test, the vibrations of the bridge under different truck speeds and different pavement conditions were tested, and time histories of deflection and acceleration of the bridge were measured. Based on the dynamic loading test, the impact coefficient was analyzed. The results indicate that the pavement smoothness had more impacts on the vibration of the bridge than the truck?s speed. The vertical damping of the bridge under the excitation of the trucks is larger than the transverse damping. Resonance occurs at the side span of the bridge under a truck at 10 km/h.
引用
收藏
页码：809 / 817
页数：9
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