Corrosion prediction of reinforced concrete structure in marine atmospheres

doi:10.11835/j.issn.1000-582X.2021.062

Home > Archive>Volume 47, Issue 2, 2024 >22-31. DOI:10.11835/j.issn.1000-582X.2021.062

Corrosion prediction of reinforced concrete structure in marine atmospheres
DOI:
                        10.11835/j.issn.1000-582X.2021.062
                    
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Author:
                        ZHENG Shansuo1,2ZHENG Shansuo
School of Civil Engineering, Xi’an University of Architecture & Technology, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China;Key Laboratory of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China
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LIANG Zetian1,2LIANG Zetian
School of Civil Engineering, Xi’an University of Architecture & Technology, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China;Key Laboratory of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China
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YANG Song1,2YANG Song
School of Civil Engineering, Xi’an University of Architecture & Technology, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China;Key Laboratory of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China
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MING Ming1,2MING Ming
School of Civil Engineering, Xi’an University of Architecture & Technology, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China;Key Laboratory of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China
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HAN Chaowei1,2HAN Chaowei
School of Civil Engineering, Xi’an University of Architecture & Technology, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China;Key Laboratory of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China
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Affiliation:1.School of Civil Engineering, Xi’an University of Architecture & Technology, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China;2.Key Laboratory of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi’an University of Architecture & Technology, Xi’an 710055, P. R. China
Clc Number:TU375;TU503
Fund Project:Supported by the National Key Research and Development Program of China (2019YFC1509302), Shaanxi Province Key R&D Program Project (2021ZDLSF06-10), and Xi’an Science and Technology Plan Project (2019113813CXSF016SF026).

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Abstract:

Reinforcement corrosion is an important factor influencing the service life of reinforced concrete structures in offshore atmospheric environment. To study the effects of concrete carbonation and chloride corrosion on reinforcement corrosion in offshore atmospheres, an engineering measurement of reinforced concrete structures with varying ages was conducted. This assessment included measurements of compressive strength, carbonation depth of concrete, surface chloride concentration, and corrosion depth of steel. Utilizing the obtained measurements and prior research findings, a relationship model between concrete carbonation depth and compressive strength was developed. Additionally, a prediction model for reinforcement corrosion depth was established, taking into account both concrete carbonation depth and the surface chloride concentration of reinforcement. Building upon these models, a damage plastic analysis of reinforced concrete frame columns with different ages and axial compression ratios was performed using Abaqus analysis software, revealing the seismic performance variation of corroded reinforced concrete frame columns concerning service age and axial compression ratio.

Key words:reinforced concrete structure;reinforcement corrosion model;damage plastic analysis;concrete carbonation;chloride corrosion

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郑山锁,梁泽田,杨松,明铭,韩超伟.近海大气环境下RC结构钢筋锈蚀程度预测[J].重庆大学学报,2024,47(2):22~31

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Received:November 06,2021
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Online: February 20,2024
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