二次预应力连续梁的施工过程分析  

Analysis of Twice Prestressed Continuous Beam in Construction Stage

作　　者：邵旭东[1] 彭聪[1] 李立峰[1] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082

出　　处：《中南公路工程》2006年第2期73-76,共4页Central South Highway Engineering

基　　金：广东省交通厅科技项目(20003099)

摘　　要：根据二次预应力连续梁的施工过程,提出了施工阶段的应力和变形分析方法。通过对常规预应力连续梁的计算结果对比,可以看到二次预应力组合结构可大大改善反拱过大等问题。For the construction process of twice prestressed continuous beam, the stress analysis and deformation analysis method during construction stage is provided in this paper. Compared with the result of normal prestressed structure, the innovative twice prestressed structure shows good behavior and is worth popularizing.

关 键 词：二次预应力连续梁 预应力次内力 应力分析 反拱 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]