预应力混凝土连续梁桥悬臂现浇施工技术研究  

Research on Cantilever Casting Technology of Prestressed Concrete Continuous Girder Bridge

作　　者：王连乐 Wang Lianle

机构地区：[1]中铁十八局集团第四工程有限公司,天津300000

出　　处：《辽宁省交通高等专科学校学报》2021年第4期14-17,共4页Journal of Liaoning Provincial College of Communications

摘　　要：对于预应力混凝土连续梁桥而言,其结构体系在悬臂施工时需经历较多的变化,导致主梁受力及线形较为复杂,因此对预应力混凝土连续梁桥施工阶段的控制进行研究分析有着较大的意义。本文基于某预应力连续梁桥,通过有限元分析的方式,从应力和线形两方面对其进行分析,结果表明所取得的桥梁结构具有较好的安全性。For the prestressed concrete continuous girder bridge,its structural system needs to experience more changes during the cantilever construction,leading to the main girder force and linear more complex,so the control of prestressed concrete continuous girder bridge construction stage research and analysis has a greater significance.In this paper,based on a prestressed continuous girder bridge,the finite element method is used to analyze it from two aspects of stress and linear shape,and the results show that the bridge structure obtained has good safety.

关 键 词：预应力混凝土连续梁桥 应力监测 有限元分析 施工控制 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]