基于三谱分析法的桥梁安全监测评估研究  

Monitoring and Evaluation of Bridge Safety Based on Trispectrum Analysis Method

作　　者：肖冰 祝可为 XIAO Bing;ZHU Ke-wei(Fujian Chuanzheng Communications College,Fuzhou,Fujian 350007)

机构地区：[1]福建船政交通职业学院,福建福州350007

出　　处：《呼伦贝尔学院学报》2023年第1期99-104,共6页Journal of Hulunbuir University

基　　金：2020年度福建省交通运输科技项目“基于新型异型体系的旧桥改造设计方法研究”(202031)。

摘　　要：以某悬索桥为工程案例,运用有限元分析方法构建桥梁“理论谱”、通车静动载试验数据构建“标准谱”、随机监测数据构建“随机谱”(统称为“三谱分析法”),对大桥开展结构安全监测评估。结果表明,大桥结构变形与受力均处于安全范围,强度、刚度、承载能力均满足要求。此研究为大桥安全运营、管理与维护决策提供了科学依据,也为其他类似桥梁的结构安全监测提供借鉴。In this study,a suspension bridge was take as an engineering application case,and the trispectrum analysis method,consisting of midas civil software,statical and moving-load test and andom monitoring data,was adopted to conduct effective monitoring structuralsafety for bridges.The results revealed that:1)The deformation and stress of bridge structure are in safe range;2)Strength,stiffness and bearing capacity all meet the requirements.Our research would provide scientific basis for decision on safety operation,management and maintenance of bridge,which also provides reference for structural safety monitoring for other similar bridges.

关 键 词：三谱分析法 悬索桥 安全监测 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]