杭长客长某预应力混凝土连续梁桥线形监控  

Linear Control for Prestressed Concrete Continuous Girder in Hangzhou-Changsha Passenger Dedicated Line

作　　者：李程远[1] 邹颖[1] 郑弋晨[1] 

机构地区：[1]武警水电第二总队五支队,江苏常州213135

出　　处：《施工技术》2013年第12期5-7,共3页Construction Technology

摘　　要：目前高速铁路连续梁施工中最常用的施工方法为对称悬臂法浇筑施工,由于桥梁施工分阶段进行,后续梁段施工将会影响前面已经施工完毕的梁段,改变桥梁的受力与变形,因此,为保证大桥顺利合龙及成桥线形美观,成桥后符合设计要求,需要进行必要的线形监控。结合跨上瑞高速特大桥连续梁,通过模拟分析施工过程,计算出施工预拱值,并对结果进行比较分析,验证了计算结果的准确性。主要介绍桥梁施工监控的内容、实测方法以及监控结果及数据处理。At present,the normal construction method on continuous girder is symmetrical cantilever pouring method.Because the girder is constructed by segment,the construction of the later girder segment will influence the constructed girder segment,change the load and deformation of the girder.So to guarantee the girder successfully closure and the linear beautiful,the linear control must be done.Combining with the continuous girder crossing some running railway,by simulated analyzing construction process,the pre-set arch value is calculated,and the calculated result is be compared and analyzed,which verify the accurate of the calculated result.The paper mainly introduces contents,measuring method and result of construction monitor.

关 键 词：桥梁工程 预应力连续梁 浇筑 线形 监控 

分 类 号：TU198.2[建筑科学—建筑理论]