大悬臂预应力盖梁在架梁时需注意的几个问题  

Several Issues For attention in Girder Erection for Long-cantilever Prestressed Capping Girder

作　　者：李连强[1] 陈明贵[1] 于西尧[1] 

机构地区：[1]天津市政工程设计研究院,天津300457

出　　处：《城市道桥与防洪》2011年第8期221-223,235,共4页Urban Roads Bridges & Flood Control

摘　　要：该文介绍了天津大道大悬臂预应力盖梁的构造特点,架桥机的性能以及过孔、架梁步骤,在设计阶段需注意的问题,相应的保障措施,以及对结构的调整。The article introduces the structure characteristics of the long-cantilever prestressed capping girder of Tianjin Avenue,the performance of bridge erector,the steps of via hole and girder erection,the issues required for attention in the design period,the relevant ensuring measures and the adjustment of structure.

关 键 词：大悬臂预应力盖梁 架桥机 过孔 架梁 倒钩 支腿荷载 天津大道 

分 类 号：U445.468[建筑科学—桥梁与隧道工程]