Research on Life Prediction for One Gravity Piered Wharf Based on the Regulated Reliability Index

Abstract:

The long-term behavior of concrete structure shows that the main cause of deterioration is reinforcement corrosion. One of the most aggressive exposure conditions for concrete is marine environment. What is worse, the structure mixed with sea sand. Under these conditions, chloride-induced reinforcement corrosion rate could be very high, often leading to reduction of the service life. This paper investigates long-term corrosive beams in the above-mentioned cases. Chloride distribution is analyzed. From Fick’s second law, the parameters for chloride diffusion can be obtained. Then, the service life of the concrete structure is predicted via empolying probability analysis. The characteristics of randomness (concrete cover, diffusion coefficient, surface chloride concentration and so on) have been taken into consideration.

• Periodical: Applied Mechanics and Materials (Volumes 256-259)
• Pages: 1101-1111
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.256-259.1101
• Online since: December 2012
• Authors: Wei Hua Li, Xiang Zhuang Gao, Cong Tao Sun, Hai Bing Zheng
• Keywords: Chloride, Corrosion, Life Prediction, Probability Statistics

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