[1]孙博,肖相俊,陈勇,等.基于综合变权与多源指标评价的桥梁健康评估[J].长安大学学报(自然科学版),2025,45(6):200-2015.
　SUN Bo,XIAO Xiang-jun,CHEN Yong,et al.Bridge health assessment based on comprehensive variable weight and multi-source indicator evaluation[J].Journal of Chang’an University (Natural Science Edition),2025,45(6):200-2015.
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基于综合变权与多源指标评价的桥梁健康评估()
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长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
第45卷
期数:
2025年6期
页码:
200-2015
栏目:
桥梁智能运维与防灾减灾
出版日期:
2025-11-30

文章信息/Info

Title:
Bridge health assessment based on comprehensive variable weight and multi-source indicator evaluation
文章编号:
1671-8879(2025)06-0200-16
作者:
孙博1; 肖相俊1; 陈勇2; 3; 吴涛3; 阮伟东1
(1. 浙江工业大学 土木工程学院,浙江 杭州 310023; 2. 浙江大学 建筑工程学院,浙江 杭州 310058; 3. 上海市建筑科学研究院有限公司,上海 200032)
Author(s):
SUN Bo1;  XIAO Xiang-jun1;  CHEN Yong2; 3;  WU Tao3;  RUAN Wei-dong1
(1. College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, Zhejiang, China; 2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, Zhejiang, China; 3. Shanghai Research Institute of Building Sciences Co., Ltd., Shanghai 200032, China)
关键词:
桥梁工程;  健康评估;  主客观信息;  模糊变权;  多源异构指标;  优劣解距离法
Keywords:
bridge engineering;  health assessment;  subjective-objective information;  fuzzy variable weight;  multi-source heterogeneous indicator;  technique for order preference by similarity to an ideal solution
分类号:
U446
文献标志码:
A
摘要:
针对现有桥梁状态评估中赋权信息的多样性和指标评价数据多源异构性问题,提出一种基于主客观信息变权与多源异构指标评价的桥梁健康状态评估方法,基于层次分析法(AHP)和改进熵权法(EWM)赋权指标主客观信息,并运用博弈论思想组合优化了主客观权重,再结合指标评价值,运用变权理论确定了指标综合变权权重; 通过梯形模糊数的统一表达建立了多源异构(语义型、数值型、空间序列型)指标分类评价方法,并在数值型和空间序列型指标评价时考虑了多测点评价结果的变权修正; 采用虚拟负理想解改进了传统优劣解距离法(TOPSIS),运用水平截集理论计算了在不同截集下的模糊相对贴合度区间,并对其进行去模糊化和标准化处理,得到了综合评估结果,并给出了桥梁状态等级划分标准; 采用建立的方法评估了一座单塔斜拉桥的健康状态,并分析了方法的关键环节。评估结果表明:案例桥梁健康状态评估值为0.837 2,处于B级良好状态,应进行日常保养和专项检测后小修; 主客观优化赋权法综合考量了专家评判的主客观信息,优化赋权结果总是更接近主观赋权结果,说明专家对指标两两比较所蕴含的信息对优化权重的影响更大; 桥墩严重劣化情况下,墩顶截面高应力指标评价值显著降低,该指标对应风险已处于较高水平,控制结构整体健康状态; 以指标评价值20为例,不考虑变权修正的评估结果为0.633 0,简单AHP的评估结果为0.568 5,考虑变权修正和改进TOPSIS的评估结果为0.379 6; 变权修正能够对异常指标构建有效的惩罚机制,改进TOPSIS则进一步强化了对评估对象与负理想解接近程度的辨识能力,使得综合评估结果更能体现出桥梁的实际状态。
Abstract:
To address the diversity of weighting information and multi-source heterogeneity of indicator evaluation data in current bridge health condition assessment, a bridge health condition assessment method based on variable weighting of subjective-objective information and multi-source heterogeneous indicator evaluation was proposed. The subjective and objective information of indicators were weighted through the analytic hierarchy process(AHP)and improved entropy weight method(EWM), and the game theory was applied to combinatorially optimize the subjective and objective weights. Then, combined with the evaluation values of indicators, the variable weighting theory was used to determine the comprehensive variable weights of indicators. A classification and evaluation method for multi-source heterogeneous(semantic, numerical, and spatial sequence)indicators was established through the unified expression of trapezoidal fuzzy numbers. The variable weighting correction for multi-measurement point evaluation results was considered in the evaluation of numerical and spatial sequence indicators. A virtual negative ideal solution was proposed to improve the traditional technique for order preference by similarity to an ideal solution(TOPSIS). The horizontal cut-off set theory was applied to calculate the fuzzy relative fit intervals under different cut-off sets, and the comprehensive assessment results were obtained through the defuzzification and standardization process. Then, the classification criteria for bridge status levels were provided. The established method was applied to evaluate the health condition of an single-tower cable-stayed bridge, and key steps of the method were analyzed. The assessment results show that the assessment value of the example bridge health condition is 0.837 2, which is in a good health condition(Grade B). Daily maintenance and minor repairs after special inspections should be carried out. The subjective-objective optimization weighting method comprehensively considers the subjective-objective information from the expert evaluations. The optimized weighting results are always closer to the subjective weighting results, indicating that the information contained in pairwise comparisons from experts has a greater impact on the optimized weights. Under severe deterioration of piers, the evaluation value of the high-stress indicator of pier top section significantly decreases. This indicator corresponds to a relatively high risk level and controls the overall health condition of the structure. Taking the indicator evaluation value of 20 as an example, the assessment value is 0.633 0 when ignoring the variable weighting correction, and 0.568 5 with simple AHP. When the variable weighting correction and improved TOPSIS are adopted, the assessment result changes into 0.379 6. The variable weighting correction establishes an effective penalty mechanism for abnormal indicators, while the improved TOPSIS further enhances the ability to identify the distance between the assessment target and the negative ideal solution, making the comprehensive assessment results better reflect the actual bridge condition.10 tabs, 11 figs, 31 refs.

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备注/Memo

备注/Memo:
收稿日期:2025-04-30
基金项目:国家自然科学基金项目(52278226,52571314); 浙江省自然科学基金项目(LY24E080011,LY23E090004); 上海市交通委员会科研计划项目(JT2023-KY-019); 上海建科集团股份有限公司科研创新项目(KY10000038.20240008)
作者简介:孙 博(1988-),男,江苏徐州人,副教授,工学博士,E-mail:sunbo2017@zjut.edu.cn。
通信作者:阮伟东(1989-),男,浙
更新日期/Last Update: 2025-12-20