基于AHP法和模糊综合评价的钢筋混凝土桥梁耐久性评估

Durability assessment of RFC bridges based on the analytic hierarchy process and fuzzy synthetic evaluation

目前,由于耐久性不足造成钢筋混凝土桥梁结构劣化损伤的现象日益严重,为确保既有桥梁的安全、持久运营,必须对其进行科学的耐久性评估,根据评估结果提出合理的维护加固建议.将层次分析法和模糊综合评价应用于既有钢筋混凝土桥梁耐久性评估,提出了一种针对钢筋混凝土连续梁桥的耐久性指标体系及评估模型,同时,利用实际工程的检测数据对其进行了验证,为今后既有桥梁耐久性评估提供了理论依据.

Recently,the deterioration and damage caused by durability inadequacy of reinforced concrete bridges are becoming more and more serious.To ensure the security and lasting operation of the bridges,the scientific assessment of durability is necessary.Based on the results of assessment,reasonable maintenance and reinforcement proposals will be put forward.In this paper,the analytic hierarchy process and fuzzy synthesis evaluation are used for the durability assessment of existing reinforced concrete bridges,and the new assessment model and index system for reinforced concrete continuous beam bridges are put forward.Meanwhile,the assessment model and index system for reinforced concrete bridges are verified by detection data.It is useful to draw experience from the textual on the durability assessment of existing reinforced concrete bridges.