PCCP保护层应力分析  

Discussion on Durability of Prestressed Concrete CyLinder Pipe

作　　者：孙绍平[1] 萧岩[1] 王光明[1] 

机构地区：[1]北京市市政工程研究院,100037

出　　处：《特种结构》2005年第3期62-64,共3页Special Structures

摘　　要：本文对PCCP保护层的脱落进行了讨论,并采用有限元方法分析了保护层收缩、预应力钢丝松弛和管内外存在不同温差情况下保护层的径向拉应力。This paper discuses the drop off of motor coating of PCCP due to shrinkage and relaxation of the wire as well as the temperature changes of pipe, and also analyses the radial tension strength by FEM for different space between each rings of wire.

关 键 词：保护层 收缩 松弛 有限元 径向拉应力 PCCP 应力分析 有限元方法 预应力钢丝 拉应力 

分 类 号：TU991[建筑科学—市政工程]