文档介绍：摘要
桥梁健康监测系统是大型桥梁安全保障体系的发展趋势。本文结合具体的工程项目对实现桥梁结构的监测自动化和安全评估开展了深入研究,提出了自动监测系统的总体设计构思,并完成了相应的软件设计与开发。
基于建立桥梁健康监测系统的目标和功能要求,本文对具体桥型结构的承载特点进行了分析,逐步确立了监测项目并提出了监测系统的构建方案,并对监测系统的工程实施作了较为详细的介绍。
为满足数据采集和数据传输的要求,开发了用于全面控制和设置采集设备的数据采集应用程序,提供现场调试设备、自定义采集模式、调整采样间隔以及远程数据传输等功能。
根据用户需求分析,进行了数据管理与安全评估软件的设计开发,实现了监测数据的分类管理、数据查询的图表显示以及数据的计算处理等功能。本文还提出了结合层次分析法和人工神经网络算法的安全评估方法,并在软件中集成了相应功能。
关键词:大型桥梁,健康监测,数据采集,安全评估,层次分析法,人工神经网络
Abstract
Bridge Health Monitoring System is the developing trend of long-span bridge safety ensuring system. Associated with the project, the research on monitoring automation and safety evaluation of bridge structure is investigated in this paper. And the program of the whole monitoring system is put forward, the software design and development is also plished.
Based on the objective and functional requirement of establishing the Bridge Health Monitoring System, the load characteristic of specified bridge style is analyzed and the monitoring program is formed by step in the paper. Moreover, the construction of monitoring system is described in detail.
In order to meet the need of data acquisition and data transfer, an application of data acquisition is developed to generally control and configure the acquisition equipment. Supplied functions include testing the equipment, user-defining the acquisition mode, altering the sampling interval, remote data transfer, and so on.
According to the user requirement analysis, puter software implemented data management and safety evaluation has also been designed and developed. It provides classifying management of monitoring data, displaying the query result with chart and table, data calculation and processing, and other functions. A method of safety bined Analytic Hierarchy Process and Artificial work algorithms is advanced in the paper, and the corresponding software function is achieved too.
Keywords: long-span bridge, health monitoring, data acquisition, safety evaluation, AHP, ANN
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桥梁健