智能城市2025，Vol.11Issue(3)：6-9,4.DOI:10.19301/j.cnki.zncs.2025.03.002
基于动态监测数据的桥梁安全状态评估
Bridge safety status assessment based on dynamic monitoring data
摘要
Abstract
Based on dynamic monitoring data of acceleration and strain collected from the bridge,this paper investigates the vibration response characteristics of the bridge under external loads and evaluates its safety.By analyzing the acceleration data in both the time and frequency domains,the paper explores the vibration characteristics of the bridge.Furthermore,it assesses the cooperative working capacity of the hollow slab bridge using strain data,providing further insights into the structural safety status of the bridge.The results indicate that the vibration amplitude at the mid-span of the bridge is significantly higher than that at the edge of sidewalks.Modal identification reveals that the monitored fundamental frequency aligns with the detected fundamental frequency,both of which are higher than the theoretical fundamental frequency.Additionally,multi-beam consistency analysis verifies the cooperative working ability of the hollow slabs.This methodology offers a scientific basis for bridge condition assessment and maintenance.关键词
安全监测/模态频谱/振动/一致性Key words
safety monitoring/modal spectrum/vibration/consistency分类
交通工程引用本文复制引用
陈登国,季诺亚,薛海斌..基于动态监测数据的桥梁安全状态评估[J].智能城市,2025,11(3):6-9,4.基金项目
铁路高质量发展安全保障体系及关键技术研究(P2023T002) （P2023T002）
安徽省科技攻坚计划项目(重点项目)(202423l10050030) （重点项目）
