桥梁健康监测系统安全预警阈值设定研究  

Research on Setting Safety Warning Thresholds for Bridge Health Monitoring Systems

作　　者：孟令强 MENG Lingqiang(Tiezheng Testing Technology Co.Ltd.,Jinan Shandong 250014,China;China Railway 14th Bureau Group Co.Ltd.,Jinan Shandong 250014,China)

机构地区：[1]铁正检测科技有限公司,山东济南250014 [2]中铁十四局集团有限公司,山东济南250014

出　　处：《铁道建筑技术》2024年第12期171-173,193,共4页Railway Construction Technology

基　　金：山东省技术创新项目(202250101012)。

摘　　要：随着国民经济快速发展,我国的基建也得到大力发展,很多公路桥梁随时间推移出现严重退化,进而导致桥梁安全隐患增加。为保障公路工程稳定发展,保证桥梁结构安全性和稳定性,建立一个科学的运营期健康与安全监测系统尤为重要。在桥梁健康监测系统中桥梁安全预警体系是系统核心之一,安全预警阈值设定至关重要。以重庆市某高速公路桥梁健康监测系统为背景,对安全预警阈值设定展开系统研究,提出无模型预警阈值法和有模型预警阈值法两种针对预警阈值设定方法。系统在设定预警阈值前期可采用有模型预警阈值法进行设定,在拥有一定规模的数据库后可采用无模型预警阈值法进行设定。With the rapid development of the national economy,China′s infrastructure has also been vigorously developed,and many highway bridges have also experienced serious degradation over time,leading to an increase in safety hazards of bridges.In order to ensure the stable development of highway engineering and the safety and stability of bridge structures,it is particularly important to establish a scientific health and safety monitoring system during the operation period.In the bridge health monitoring system,the bridge safety warning system is one of the core components,and the setting of safety warning thresholds is also crucial.This paper took the bridge health monitoring system of a certain expressway in Chongqing as the background,systematic research was conducted on security warning threshold setting.Two methods were proposed for setting warning thresholds:model free warning threshold method and the model based warning threshold method.And it was found that in the early stage of setting warning thresholds,the model based warning threshold method can be used for setting,and the model free warning threshold method can be used for setting when having a certain scale of database.

关 键 词：桥梁健康监测系统 安全预警体系 预警阈值 设定方法 

分 类 号：U446[建筑科学—桥梁与隧道工程]