中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 1999, Vol. 18 ›› Issue (4): 131-137.

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桥梁结构实时响应在线监测的简化分析方法

王家林, 肖盛燮, 吴国松, 曾德荣   

  1. 重庆交通学院 桥梁及结构工程系, 重庆 400074
  • 收稿日期:1999-03-22 出版日期:1999-08-25 发布日期:2016-10-31
  • 作者简介:王家林(1968-),男,重庆市万州人,重庆交通学院讲师,硕士,主要从事力学与计算机软件的教学研究工作.

A new simple method to on-line survey and analyse the real-time response of bridges

WANG Jia-lin, XIAO Sheng-xie, WU Guo-song, ZENG De-rong   

  1. Department of Bridge & Structural Engineering, Chongqing Jiaotong Institute, Chongqing 400074, China
  • Received:1999-03-22 Online:1999-08-25 Published:2016-10-31

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,具有实际应用价值.

关键词: 桥梁, 实时监测, 线弹性, 有限元

Abstract: 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.

Key words: bridge, real-time response survey and analysis, linear elastic hypothesis, finite element

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