摘要
在线弹性假设基础上， 根据有限元理论和桥梁随机车辆（ 行人） 荷载的特点， 讨论并提出了一种通过监测部分位移， 计算桥梁其余位移和桥面荷载的简化分析方法， 解决了桥梁在随机车辆（ 行人） 荷载作用下的荷载确定问题， 建立了动位移和等效节点荷载的有限元列式． 该方法为桥梁结构的在线监测和实时分析提供了理论基础， 适用于连续梁桥、拱桥、斜拉桥和悬索桥等桥梁结构形式，
In this paper,a new simple method is put forward to on line survey and analyse the real time response of bridges loaded under random vehicles and people.Based on linear elastic hypothesis and finite element method,the dynamic whole displacement state and load of the bridge can be obtained through surveying partial displacements,so the problem that load is unknown and difficult to determine when calculating is solved in a sense.This method is adapted to girder bridge,arch bridge,cable stayed bridge and suspension bridge.Through the instrumentality of ways and means in this treatise,a real time system to survey and analyse a working bridge can be established.
出处
《重庆交通学院学报》
1999年第4期131-137,共7页
Journal of Chongqing Jiaotong University
关键词
桥梁
线弹性
有限元
在线监测
实时响应
bridge
real time response survey and analysis
linear elastic hypothesis
finite element
