摘要
以澧水特大悬索桥为工程背景,将55T重车考虑为移动荷载,利用有限元建模研究了单辆55T重车匀速过桥时桥梁结构的动力响应,包括加劲梁、主缆及吊索的动力响应,并讨论了车辆移动速度对悬索桥结构动力响应的影响,指出桥跨不同位置构件对车速的敏感程度不同,为悬索桥的运营管理提供了参考。
This paper is based on the background of Lishui extra large suspension bridge,the 55 tons heavy vehicle is considered as moving load,analyzed the dynamic responses of bridge structure under single 55 tons heavy vehicle at constant velocity through the bridge by using FEM,including the dynamicresponse of stiffening girder,main cable and sling,and discussed the effect of vehicle speed on dynamic response of suspension bridge structure,pointed out that the sensitive degrees of vehicle speed at different bridge structuralmembers are not the same,provided a reference for the operation and management of suspension bridge.
出处
《公路工程》
北大核心
2015年第3期242-244,274,共4页
Highway Engineering
关键词
悬索桥
车速
时程分析
冲击系数
动力响应
suspension bridge
vehicle speed
time-procedure analysis
impact coefficient
dynamic responses
作者简介
吴海军（1981-），男，湖南长沙人，研究生，工程师，主要从事公路桥梁试验检测工作。
