中文核心期刊
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中国科技核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2013, Vol. 32 ›› Issue (6): 1123-1127.DOI: 10.3969/j.issn.1674-0696.2013.06.06

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在役钢筋混凝土桥梁退化机理、可靠性评估 及维修策略多目标优化

张建仁1,2, 胡守旺1,彭建新1,2   

  1. 1.长沙理工大学 土木与建筑学院，湖南 长沙 410114; 2.长沙理工大学 桥梁工程安全控制省部共建教育部重点实验雪，湖南 长沙 410114
  • 收稿日期:2013-03-15 修回日期:2013-05-22 出版日期:2013-12-15 发布日期:2015-01-22
  • 作者简介:张建仁(1958—)，男，湖南湘阴人，教授，博士，主要从事桥梁结构时变可靠度及耐久性研究。E-mail:jianrenz@hotmail.com
  • 基金资助:
    国家自然科学基金项目(51008037，51178060) ;湖南省自然科学基金项目(12JJ6050) ;湖南省科技计划项目(2012FJ4124)

Degradation Mechanism , Reliability Assessment and Multi-Objective Optimization of Maintenance Strategies of Existing Reinforced Concrete Bridge

Zhang Jianren 1,2 , Hu Shouwang 1 , Peng Jianxin 1,2   

  1. 1.School of Civil Engineering & Architecture , Changsha University of Science & Technology, Changsha 410114, Hunan , China; 2.The Key Laboratory of Safety Control for Bridge Engineering of the Ministry of Education and Hunan Province , Changsha University of Science & Technology , Changsha 410114 , Hunan , China
  • Received:2013-03-15 Revised:2013-05-22 Online:2013-12-15 Published:2015-01-22

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摘要： 利用快速腐蚀构件、实桥构件承载力试验与桥梁破坏性试验，通过外观检测、挠度测试等手段，揭示了腐蚀环 境下RC桥梁的退化机理;考虑腐蚀参数的随机性和时变性，建立了RC桥梁在腐蚀环境下的时变可靠度模型，计算 了RC桥梁在大气环境下的失效概率和锈胀开裂比例;在此基础上，结合维修加固成本模型，构造了RC桥梁维修加 固多目标优化的目标函数和约束条件。利用桥面板的维修加固实践，证明方法的合理性。

关键词: RC桥梁, 退化机理, 可靠性评估, 维修策略多目标优化

Abstract: The rapid corrosion of components , real bridge component bearing capacity test and destructive test of bridge were used to reveal the degradation mechanism of the RC bridge under corrosive environment by means of surface detection , def1ection test and so on. Considering the randomness and time-varying of corrosion parameters , RC bridge model was established in the time-varying reliability of corrosive environment , and the failure probability and the corrosive cracking ratio of RC bridge in the atmosphere environment of were calculated. On this basis , with the consideration of maintenance cost model , RC bridge maintenance and reinforcement of multi-objective optimization objective function and constraint conditions were constructed. The bridge deck' s maintenance practice was used to prove the rationality of the proposed method.

Key words: RC bridge, degradation mechanism, reliability assessment, multi-objective optimization of maintenance strategles

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