无背索竖琴式斜拉桥动力性能试验研究  

Test Study of the Dynamic Performance of the Harp-shaped Cable-stayed Bridge with No Back-stayed Cables

作　　者：王平[1] 

机构地区：[1]中铁十九局集团第五工程公司,辽宁大连116001

出　　处：《国防交通工程与技术》2010年第6期14-16,共3页Traffic Engineering and Technology for National Defence

摘　　要：白鹭大桥是一座无背索竖琴式斜拉桥,为了测试该桥的动力性能,通过跑车试验对白鹭大桥进行了频谱曲线和动位移测试,并且测试了该桥的自振频率和振动参数。通过动载试验及其数据的分析,对无背索竖琴式斜拉桥的工作性能给予客观的评估。试验对同类型桥梁的结构评定可起到一定的借鉴作用。The Bailu Bridge is a harp-shaped cable-stayed bridge with no back-stayed cables.To test the dynamic performance of the bridge,the frequency spectrum curves and the values of the dynamic displacement are obtained by the running test,and its natural frequency and vibration parameters are tested,too.By the dynamic loading test and through analyzing the test data,an objective assessment of its working performance is performed.The test may serve as a useful reference not only for harp-shaped cable-stayed bridges with no back-stayed cables,but also for other bridges of similar types.

关 键 词：无背索竖琴式斜拉桥 动载试验 自振频率 振动参数 评估 

分 类 号：U446.1[建筑科学—桥梁与隧道工程] U448.27[交通运输工程—道路与铁道工程]