东南大学学报（英文版）2005，Vol.21Issue(1)：73-77,5.
预应力混凝土结构的耐久性设计方法研究
Durability design of prestressed concrete structures
摘要
Abstract
Based on the durability characteristics of prestressed concrete structures,the durability limit states of carbonation and chloride ion attack are defined,respectively.Durability predicting models on the basis of reliability mathematics and stochastic processes are constructed,and the pure theoretical formulae of failure probability of prestressed concrete structures are analyzed.In addition,a simple durability design method for carbonation of structures is put forward.According to the analysis,the durability of prestressed concrete structures is superior to that of traditional structures.The research also indicates that the concrete cover prescribed in the current code (GB 50010-2002) is not adequate.The rational cover thickness should not be less than 35 or 45mm according to carbonation or chloride ion attack,respectively.关键词
预应力混凝土结构/极限状态/失效概率/耐久性设计Key words
prestressed concrete structure/limit state/failure probability/durability design分类
建筑与水利引用本文复制引用
涂永明,吕志涛..预应力混凝土结构的耐久性设计方法研究[J].东南大学学报（英文版）,2005,21(1):73-77,5.基金项目
The National Natural Science Foundation of China (No.59978008). （No.59978008）
