摘要
讨论了工程结构 (特别是大跨桥 )健康监测系统的背景、特点、核心技术、所涉及的多学科研究进展及发展前景 ,指出其主要目的是监测累积损伤。桥梁的自动交通管理设施和验收试验为桥梁健康监测系统打下了基础。世界上许多新建的大跨桥都安装有监测系统。目前的健康监测系统尚不具备损伤识别能力 ,而真正的健康监测系统必须具备自动识别损伤的能力。自动识别损伤是结构健康监测系统的核心技术之一 ,也是当代国际的研究热点。结构健康监测系统涉及许多不同的研究领域 (如结构、计算机、通讯等 ) ,需要解决多方面的问题 (如寻找传感器最优测点、先进的模态识别方法、先进的系统识别方法、误差分析等 )。
Background,characteristics,core techniques,present progress and prospect of health monitoring of long span bridges are discussed.Health monitoring mainly aims at accumulated damage in structures.Equipment for controlling traffic on bridges and proof testing can be looked as preliminary systems for bridge monitoring.Many recently built long span bridges have been installed with monitoring systems.At the present time,bridge health monitoring systems have not had capacity to detect damage in bridges. Automatic damage detection is a core technique and popular research for bridge health monitoring systems. Bridge health monitoring involves many disciplines, such as structures, computers and communications, and many subjects,such as optimum localization of sensors modal identification, system identification and error analysis and so on.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2000年第2期37-42,共6页
China Journal of Highway and Transport
基金
国家攀登计划 B项目
关键词
模态识别
系统识别
损伤识别
桥梁
健康监测
modal identification
system identification
damage detection
health monitoring
