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郑兆阳 , 王育德 , 李晓阳 , 张全权

 

(河北工程大学 土木工程学院 , 邯郸   056038)

摘  要: 桥梁作为重要交通设施 , 服役期间长期受到环境侵蚀 、超载等影响 , 导致桥梁的损伤 , 降低其安全性和可靠性 , 所以对于在役桥梁进行可靠性分析是十分必要且急迫 。在役钢筋混凝土桥梁可靠性影响在役钢筋混凝土桥梁可靠性的因素众多 , 通过对影响其可靠性的主要因素分析 , 构建影响桥梁可靠性指标体系 , 将影响桥梁可靠性的各因素通过定性和定量的方式表示 , 运用模糊综合评价理论并结合现行规范构建多级模糊综合评判模型 , 设定各层级等级评判标准 , 选用岭型函数式 , 通过指标的评级标准确定定量指标的隶属度 , 对于定性指标赋予隶属度“ 1”或“0”来表示 。最后结合重庆市某桥梁实例基于多级模糊运算对桥梁的可靠性进行评判 , 验证方法的有效性 , 为管理者制定养护控制决策提供依据。

关键词: 钢筋混凝土桥梁 ; 层次分析法 ; 综合模糊评价 ; 可靠性分析

中图分类号: U448      文献标志码: A      文章编号: 1005-8249 (2026) 05-0099-09

DOI:10. 19860/j. cnki. issn1005-8249. 2026. 05. 015

 

ZHENG Zhaoyang, WANG Yude, LI Xiaoyang, ZHANG Quanquan

(School of Civil Engineering, Hebei University of Engineering, Handan 056038, China)

Abstract : As an important transportation facility, bridges are affected by erosion and overload during service, which will accelerate the damage of bridges, their safety and reliability.  Therefore, it is necessary and urgent to carry out reliability for bridges in service reliability of existing reinforced concrete bridges there are many factors that affect the reliability of existing reinforced concrete bridges. The main factors that affect the reliability of existing reinforced concrete bridges are analyzed. The main factors that affect the reliability of existing Reinforced concrete bridges are analyzed.  The factors that affect the reliability of bridges are expressed qualitatively and quantitatively.  The fuzzy comprehensive evaluation theory is combined with the current norms. The multi-level fuzzy comprehensive evaluation model is established. The grade evaluation of each level is determined by the rating of indexes. The membership degree of quantitative indexes is determined by the rating of indexes. The qualitative indexes are expressed by the membership degree of " 1" or " 0" Finally, the reliability of a bridge in Chongqing is evaluated based on multi-level fuzzy operation, which provides the basis for the manager to make maintenance control decision.

Key words: reinforced concrete bridge; AHP ; comprehensive fuzzy evaluation; reliability analysis

    

项目来源 : 国家自然科学基金资助项目 (52278171) ; 河北省自然科学基金资助项目 (E2020402079)。

作者简介 : 郑兆阳 (2000—) , 男, 硕士研究生, 研究方向 : 结构项目管理。

收稿日期 : 2024-07-03