独柱支承平面曲线梁桥倾覆病害分析与加固  

Analysis and Reinforcement of the Overturning Disease of Planar Curved Girder Bridge Supported by Single-column Pier

作　　者：金晶[1] 乔晓军 杨勇[1] 张连普[1] 张恺[1] 

机构地区：[1]北京市市政工程设计研究总院有限公司,100082 [2]北京市城市道路养护管理中心,100069

出　　处：《特种结构》2014年第6期83-87,82,共6页Special Structures

摘　　要：曲线梁桥在现代化城市道路立交匝道桥中得到大量应用。由于受地形、地物和城市美观等多方面影响,匝道的设计往往受到多种因素限制。本文以北京市某立交匝道桥中一联桥为例进行论述。通过对桥梁病害进行相关调查和专项特殊检测,查明了现状桥梁存在整体向外偏转并引起边墩外侧支座开裂和中墩球型支座的转角超限等相关病害,然后采用MIDAS CIVIL对桥梁进行计算分析,验证了桥梁存在倾覆安全问题,明确了病害原因,并采取了加固措施以解决曲线梁桥存在的安全隐患,可供同类桥梁的设计及维修加固参考。The curved girder bridge has been applied widely in the modern city interchange ramp bridge. Because of the culture, relief and city appearance, ramp bridge design has been limited by various factors. In this paper, a bridge in one interchange ramp bridge in Beijing was discussed as an example.Through the investigation and the special detection of bridge disease, the current status and other related diseases of the bridge were found out.Because of the overall outward deflection of the bridge, the angle of the spherical bearing of the bridge pier exceeded the limit value, and the beam end lateral bearing was cracked.And then the calculation and analysis of the bridge was carried out using Midas civil The overturning safety problem of the bridge and the cause of the disease were confirmed.At last, the reinforcement measures were adopted to solve the safety problems of curved girder bridges, which can provide references for the design and maintence of the bridge of the same type.

关 键 词：独柱支承 曲线梁桥 倾覆 MIDAS 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]