大跨桥梁在不同荷载作用下的动力响应监测

英文篇名：Dynamic Response Monitoring of Large-span Bridge under Different Loads
中文刊名：城市道桥与防洪
英文刊名：Urban Roads Bridges & Flood Control
作者：董敏
英文作者：Dong Min
中文关键词：健康监测 ; 动力响应 ; 时程曲线分析
英文关键词：health monitoring ; dynamic response ; time-history curve analysis
出版日期：2008-06-15
机构：上海长江隧桥建设发展有限公司上海市201209
年：2008
期：06
出版单位：城市道桥与防洪

摘要

桥梁结构的动力特性是结构动力计算和抗震分析的基础,也是桥梁健康状况监测的一个重要指标。该文根据加速度响应时程曲线分析了某大跨斜拉桥在重车、船撞、大风、爆破地震等各种荷载作用下的振动响应,得出大跨桥梁在不同荷载作用下的动力响应特性。
The dynamic characteristic of the bridge structure is the basis to the structural dynamic calculation and the seismic analysis,and is also the important index to monitor the bridge health conditions. Based on the time-history curve analysis of acceleration response,the article analyzes the vibrating response of a large-span cable-stayed bridge under the different loads of heavy vehicles,ship collision,strong wind,blasting earthquake and so on,and gives the dynamic response characteristics of the large-span bridge under the different loads.

引文

[1]Peeters B,Roeck G D.One-year monitoring of the Z24-bridge:Environmentaleffectsversusdamageevents[J].Earthquake Engineering and Structural Dynamics,2001,30(2):149-171.
    [2]ZHANG Qi-wei,FAN Li-chu,YUAN Wan-cheng.Traffic-induced variability in dynamic properties of cable-stayed bridge[J].Earthquake Engineering and Structural Dynamics,2002,31(11):2015-2021.
    [3]L.Fryba,M.Pirer.Load tests and modal analysis ofbridges,Engineering Structures,2001,23:1021-109.
    [4]Z.X.Li,T.H.T.Chan,R.Zheng.Statistical analysis of online strain response and its application in fatigue assessment of long-span steel bridge.Engineering Structures,2003,25:1731-1741.
    [5]梁文娟,金允龙,陈高增.船舶与桥墩碰撞力计算及桥墩防撞[A].第十四届全国桥梁学术会议论文集[C],2000:566-571.
    [6]张雪亮.爆破地震效应[M].北京:地震出版社,1981.