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随着我国经济迅速发展,对于交通运输能力的要求不断提高,结构健康监测(Structural Health Monitoring,SHM)系统越来越成为大型桥梁运营、养护管理、安全评估与维护的重要技术支撑。本文针对目前国内外大跨桥梁结构健康监测系统中存在的问题,围绕“结构健康监测、日常养护检测系统、周期检测相结合,综合建立大跨桥梁结构状态识别与安全评估系统”的思想,主要就建立大跨缆索支承型桥梁结构健康监测系统中的问题进行了研究,提出了明确的系统的总体设计原则、构成以及功能目标,对系统设计与安全评估目标的关系问题进行了分析研究,阐述了监测项目选择、传感器子系统、数据采集与传输子系统、数据处理与控制子系统、结构状态识别与安全评估子系统的设计原则或思路。
With the rapid development of economy in our country, the requirements for transportation capacity are constantly increasing. The Structural Health Monitoring (SHM) system is increasingly becoming an important technical support for the operation, maintenance management, safety assessment and maintenance of large bridges. In this paper, in view of the existing problems in the structural health monitoring system of large-span bridges at home and abroad, this paper focuses on the idea of “structural health monitoring, daily maintenance detection system, periodic detection, comprehensive establishment of structural identification and safety assessment system for long-span bridges” , Mainly on the establishment of large-span cable-supported bridge structural health monitoring system problems were studied, the clear overall system design principles, composition and function of the target, the relationship between the system design and safety assessment objectives are analyzed and studied , Elaborates the design principles or ideas of monitoring project selection, sensor subsystem, data acquisition and transmission subsystem, data processing and control subsystem, structural state identification and safety evaluation subsystem.