碳绞线体外预应力桥梁预应力损失监测与分析  

Monitoring and Analysis of External CFCC Prestressing Losses of a Bridge

作　　者：王鹏[1] 丁汉山[1] 夏文俊[2] 王智[3] 

机构地区：[1]东南大学土木工程学院,南京210096 [2]江苏省高速公路建设指挥部,南京210000 [3]江苏捷达交通工程集团,准安223001

出　　处：《特种结构》2008年第1期84-87,91,共5页Special Structures

基　　金：江苏交通科学研究计划项目(03Y028)

摘　　要：简介国内第一座碳绞线(Carbon Fiber Composite cable)体外预应力混凝土公路桥梁设计与施工,详细阐述了该桥张拉施工阶段前后对碳绞线的力学性能、摩擦损失、锚固损失、混凝土弹性压缩应力损失、混凝土收缩徐变损失的监测和分析。The design and construction important details of the first concrete highway bridge externally prestressed with CFCC in China are introduced; the monitoring and testing of mechanical property of CFCC , and traditional losses associated with prestressing tendons, such as friction, anchoring, initial elastic shortening, tendon relaxation and concrete creep and shrinkage during prestressing are thoroughly analyzed.

关 键 词：桥梁体 外预应力 CFRP筋 碳绞线 预应力张拉 

分 类 号：U448.35[建筑科学—桥梁与隧道工程]