摘要
为探究桥梁运营安全风险决策机制,防范桥梁运营重大安全风险,搭建桥梁运营安全风险感知—风险认知—风险决策三阶段理论框架,利用Heronian有序加权平均(H-OWA)算子处理专家评分,建立决策因素的交互矩阵;确定模糊认知图(FCM)概念节点的含义及结构,揭示因素间的映射关系;收集某铁路桥梁2020年1月1日列车通行时的监测数据,开展工程应用与验证分析。结果表明:桥梁结构加速度、应变、位移的权重重要度排序与迭代过程重要度排序最高,是桥梁结构健康感知关键指标;桥梁下部结构加固策略的实施效果在低、中、高风险情景下均显著高于防水隔热、上部结构加固,有效提升桥梁的整体稳定性和安全性。
In order to investigate the decision-making mechanism for operational safety risks in bridges and mitigate major operational safety hazards,a three-stage theoretical framework comprising risk perception,risk cognition,and risk decision-making for bridge operational safety was established.H-OWA operator was employed to process expert evaluations,constructing an interaction matrix for decision factors.The meanings and structure of concept nodes within FCM were defined to elucidate the mapping relationships between factors.Monitoring data collected during train passages on a specific railway bridge on January 1,2020,was utilized for conducting engineering application and validation analysis.The results show that the weight importance ranking of bridge structure acceleration,strain,and displacement is the highest among the iterative process importance ranking,indicating their critical roles in perceiving bridge structure health.Moreover,the implementation effect of reinforcement strategies for the substructure of the bridge is significantly higher than that of waterproofing and insulation and reinforcement of the superstructure under low,medium,and high-risk scenarios,effectively enhancing the overall stability and safety of the bridge.
作者
向鹏成
郭佩文
张雪芹
XIANG Pengcheng;GUO Peiwen;ZHANG Xueqin(School of Management Science and Real Estate,Chongqing University,Chongqing 400044,China;International Research Center for Sustainable Built Environment,Chongqing University,Chongqing 400045,China;Construction Economics and Management Research Center,Chongqing University,Chongqing 400045,China;Chongqing Construction Science Research Institute Co.,Ltd.,Chongqing 400042,China)
出处
《中国安全科学学报》
北大核心
2025年第9期202-211,共10页
China Safety Science Journal
基金
重庆市社会科学规划重大项目(2023ZDSC12)
重庆设计集团科研项目(2023-C2)。
