基于结构健康监测的大跨度斜拉桥状态特性概率性分析

提出了基于结构健康监测（SHM）的大跨度斜拉桥结构状态特性概率性分析方法，并分别运用主航道斜拉桥和数值算例验证该方法的可行性.在主航道斜拉桥监测数据分析中用回归分析对环境影响效应进行分析，用序贯概率比检验进行结构状态概率性分析.在数值模型中采用因子分析对环境因素的影响效应进行分析，并基于奇异识别对结构损伤进行了概率性判别.

Probabilistic analysis of condition properties of long span cable-stayed bridge based on SHM

In this paper,a probabilistic analysis method of structural condition properties of long-span cable-stayed bridge based on structural health monitoring (SHM) was proposed. The example of the main navigation channel cable-stayed bridge and a numerical example were adopted to validate this method. In the example of the main navigation channel cable-stayed bridge,the regression model was used to analyze the environmental effect and the sequential probability ratio test was used to identify the different structural condition. In the numerical model,the environmental effect was expressed by using factor analysis and the structural damage was identified based on outlier analysis for probabilistic recognition.