预应力混凝土管和预应力钢筒混凝土管抗裂公式的诠释  

Prestressed Concrete Pipeline and Prestressed Concrete Cylinder Pipeline Crack Formula Interpretation

作　　者：程渡[1] 

机构地区：[1]北京市市政工程设计研究总院,100082

出　　处：《特种结构》2011年第4期34-39,共6页Special Structures

摘　　要：本文简要介绍《给水排水工程埋地预应力混凝土管和预应力钢筒混凝土管管道结构设计规程》CECS140:2011修订中,关于管道结构抗裂度计算公式的推导过程,以及对公式中受拉区混凝土影响系数K值的分析,以利于设计人员运用规程时更好地理解。The prestressed concrete pipe and prestressed concrete cylinder pipe structure crack calculation formula which is used in revising 《 Specification for structural design of buried prestressed concrete pipe and prestressed concrete cylinder pipe of water supply and sewerage engineering》（CECS140：2011） were briefly introduced in this paper, and the influence coefficient K in the formula was analyzed, in order to help designers use the formula.

关 键 词：一阶段管 三阶段管 预应力钢筒混凝土管 抗裂度公式 受拉区混凝土影响系数 

分 类 号：TU991.36[建筑科学—市政工程]