Time-dependent reliability analysis of reinforced concrete beams subjected to bending and marine atmospheric environment

被引：0
|
作者：
Zhou, Binbin [1 ]
Gu, Xianglin [1 ]
Zhang, Weiping [1 ]
Jin, Xianyu [2 ]
Huang, Qinghua [1 ]
机构：
[1] Tongji University, Shanghai 200092, China
[2] Zhejiang University, Hangzhou 310027, China
来源：
Tumu Gongcheng Xuebao/China Civil Engineering Journal | 2010年 / 43卷 / SUPPL. 2期
关键词：
Atmospheric environment - Corroded reinforced concrete beams - Influential coefficient - Probability of failure - Reinforced concrete beams - Spatial variability - Time dependent reliability - Time dependent reliability analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A time-dependent model of corrosion rate of steel rebars was established by introducing influential coefficients of stress level to chloride diffusion model with consideration of the influence of load. A stochastic analysis was conducted using the model to assess the influence of spatial variability of pitting corrosion on the reliability of corroded reinforced concrete beams, in which the beam was discretized into a series of small elements and the probability of failure of the beam was evaluated as the union of the element failures. Monte Carlo simulation was conducted to evaluate the time-dependent reliability of a reinforced concrete beam subjected to bending and marine atmospheric environment. The results show the importance of considering spatial variability of pitting corrosion and the influence of load on the deterioration in a time-dependent reliability analysis for corroded reinforced concrete beams.
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页码：15 / 21
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