摘要
以六冲河特大桥为工程背景,对斜拉桥成桥状态下的桥面线形和斜拉索索力进行了测试。同时使用MADIS软件建立空间有限元模型,通过对桥梁结构活载作用效应进行分析,确定了静载试验的最不利工况,以及各工况加载载位。经现场静动载试验,得出了各加载工况下相应的挠度、应变、索力和塔偏参数,并对桥梁承载能力进行了评定。
In this paper, taking Liuchong River Bridge as engineering background, bridge deck line and suspension cable force was tested on the state of cable-stayed bridge. At the same time, the MADIS software space finite element model was established, then the most unfavorable condition and the loading position of the static load test was identified through the analysis of bridge structure effect of live load. Finally, the corresponding deflection, strain, cable force and the partial parameters was ob- tained under various load conditions through the static and dynamic load test, evaluation about bridge bearing capacity was carried out, and some practical conclusions was obtained.
出处
《交通科技》
2013年第6期10-13,共4页
Transportation Science & Technology
关键词
斜拉桥
索力
静载试验
动载试验
cable-stayed bridge
cable force
static load test
dynamic load test
