摘要
通过试验和工程实测数据,建立了大气环境条件下混凝土中钢筋锈蚀速度和混凝土保护层开裂时锈蚀深度的预测模型。运用可靠度的原理,计算了钢筋混凝土结构的顺筋开裂耐久年限及对应的可靠指标,分析了影响钢筋混凝土结构顺筋开裂耐久性的主要因素。
Based on the accelerated electrochemical corrosion experiment and the field test, a model for predicting the corrosion depth of re bar reinforce in concrete under ordinary atmosphere is proposed in this paper. A corrosion cracking criterion which determines the longitudinal crack along the re bar is also proposed in this paper. Based on reliability theory, the corrosion cracking durability life and reliability index of reinforced concrete have been calculated. The main factors which have influence on the corrosion cracking durability of reinforced concrete have been analyzed.
出处
《建筑科学》
2002年第5期32-35,46,共5页
Building Science
基金
国家基础研究与应用基础研究重大项目"重大土木与水利工程安全性与耐久性基础研究"
国家自然科学基金赞助项目50078074
关键词
钢筋混凝土结构
钢筋锈蚀量
碳化
开裂锈蚀量
可靠指标
steel corrosion quantity
concrete carbonation
induced carbonated depth
corrosion cracking Quantity
predicting model
Reliability index
