桥梁结构安全监测的动力响应法与评估系统

摘要

针对桥梁管理需要,在国内外现有桥梁管理系统的研究基础上,根据目前的技术条件及经济条件,对桥梁管理的安全动态监测系统进行了研究,明确地阐述了桥梁安全性动态监测与分析系统的概念,进行了该系统的结构设计,并对其核心部分结构安全性评估子系统进行了研究:给出了选取的监测参数、评估框架流程、参数识别方法、承载能力评定、荷载模式识别方法以及结构状态评估方法.该系统的使用可以使桥梁管理者及时了解桥梁结构的工作性能状况,正确作出桥梁维修决策,及时消除结构安全隐患.%The thesis does research on the safety-dynamic monitoring system of the bridge on the basis of the existing bridge management system, according to the current economic and technical conditions and the needs for bridge management at home and abroad. It elaborates on the concept of the safety-dynamic monitoring and evaluation system of the bridge, designs the structure of the system and discuss the safety evaluation subsystem, which gives the selected monitoring parameters, evaluation framework, parameter identification method, bearing capacity assessment, load carrying capacity of pattern recognition method and structural condition evaluation method. The use of the system can make bridges managers promptly understand the bridge structure work performance, correctly make bridge maintenance decision and timely to eliminate safety hidden troubles on structure.