基于监测数据的桥梁结构可靠性评估

Bridge Structural Reliability Assessment Based on Health Monitoring Data

摘要:

桥梁结构健康监测系统能有效监测影响桥梁结构的各种作用及其在结构上产生的效应,可为准确评估桥梁结构的各种性能提供信息.影响桥梁结构性能的因素具有随机性,基于概率的方法是处理随机性的有效工具.研究了结构健康监测与可靠性评估相结合的桥梁结构性能评估方法.分析了纵向应变监测信号的特点,提出一种新的监测信息处理方法.结合工程实例,验证了该方法的可行性,并对可靠性评估结果进行分析.

Abstract:

This study aimed at the reliability assessment based on the monitoring data.First,an analysis was made of the characteristic of the monitoring data. Then,a new method was proposed for data processing.A case study of 15monthmonitoring data collected about Donghai Bridge proved the feasibility of the proposed method.Assessment results were also discussed.