预应力管道真空辅助压浆工艺在武汉天兴洲公铁两用长江大桥的应用  

Application of Prestressing Duct Vacuum Grouting Workmanship to Wuhan Tianxingzhou Changjiang River Rail-cum-Road Bridge

作　　者：王跃年[1] 刘灿[1] 

机构地区：[1]中铁大桥局集团天兴洲大桥建设指挥部,湖北武汉430080

出　　处：《桥梁建设》2008年第2期9-12,共4页Bridge Construction

摘　　要：预应力管道真空辅助压浆工艺是提高后张预应力混凝土结构安全度和耐久性的有效措施。武汉天兴洲公铁两用长江大桥主体工程大多采用预应力混凝土结构,介绍真空辅助压浆工艺在该桥的应用及实施过程中设备的选用、基本原理和工艺特性、控制措施与注意事项等。The prestressing duct vacuum grouting workmanship is an effective measure for improving the safety and durability of the post-tensioning concrete structures. In the Wuhan Tianxingzhou Changjiang River Rail-cum-Road Bridge Construction Project, the principal part of the Bridge works is of prestressed concrete structure. In this paper, the application of the vacuum grouting workmanship to the Bridge is introduced and the equipment selection, fundamental principles, features, control measures and matters of attention in the application of the workmanship are described as well.

关 键 词：后张预应力结构 真空辅助压浆 应用 

分 类 号：U448.35[建筑科学—桥梁与隧道工程] TU757[交通运输工程—道路与铁道工程]