摘要
桥梁工程研究长久以来存在重建设、轻管养的弊端,尤其对量大面广的城市高架老化问题和交通流加剧带来的结构负荷增加问题一直没有给予足够的重视,这使得老化结构由于缺少有效维护和加固,较易发生安全事故。而传统的基于确定性思想的状态评估方法已无法排除结构所处环境因素和荷载状况的影响,较难满足运管需求。现探讨如何依托新型物联网传感技术手段,实现城市高架环境、荷载和性能的实时监测、诊断,同时基于大数据管理平台汇聚海量数据,开展基于数据挖掘的分析评估和预警,并基于BIM手段进行可视化展示,从而为城市高架的高效运维决策提供有力支撑。
Bridge engineering research has long had the disadvantage of emphasizing construction over management and maintenance.Insufficient attention has been paid to large amount of problems of aging and increased.structural loads caused by increased traffic flow.Consequently,due to the lack of effective maintenance and reinforcement,many aged structures are more prone to safety incidents.In response to these shortcomings,the traditional condition assessment methods based on structural health monitoring data are no longer adequate because of the lack of data collection as well as stochastic analysis of the environment and traffic loads impacts.Therefore,this paper discussed how to achieve real-time monitoring of urban viaducts’environmental factors,loads and performance relying on new IoT sensing technology tools and diagnosis,while gathering large amounts of data based on big data management platforms to carry out analysis,assessment and early warning based on data mining and BIM techniques to visualize and display.All these techniques can support the operation and maintenance decision of urban viaducts.
出处
《上海公路》
2020年第4期125-132,I0008,共9页
Shanghai Highways
基金
国家重点研发计划(项目编号:2017YFF0205600)
住房和城乡建设部研究开发项目(项目编号:K92018111)
上海市科委科研项目(项目编号:17DZ1204303)。
关键词
城市高架
大数据
监测
诊断
评估
urban viaduct
big data
monitoring
diagnostic
assessment
