水力发电学报2012，Vol.31Issue(1)：103-107,5.
PCCP超载破坏试验与破坏机理分析
Overload test and failure mechanism analysis of prestressed concrete cylinder pipe
摘要
Abstract
Load-carrying capacity and fracture deformation of prestressed concrete cylinder pipe（PCCP） are analyzed through overload damage tests of PCCP in this paper.Such a pipe is divided into a concrete pressure part and a tensile part,and their fracture behaviors and mechanism are examined.The full destruction process of the pipe is divided into four stages： elastic stage,concrete cracking stage,steel wires yield stage and failure stage.Experimental results of the tests are presented and a data analysis shows the stress-strain curve and the stress state of each pipe part.Finally,the fracture deformation under overload is analyzed.关键词
水工结构/破坏形态/超载破坏/预应力钢筒混凝土管道（PCCP）/破坏特征阶段Key words
hydraulic structure/fracture morphology/overload fracture/prestressed concrete cylinder pipe分类
建筑与水利引用本文复制引用
胡少伟,刘晓鑫..PCCP超载破坏试验与破坏机理分析[J].水力发电学报,2012,31(1):103-107,5.
