介绍了一种依据桥梁健康监测数据、基于动力优化与静力效应校准组合进行铁路钢桁梁桥有限元模型修正的方法。该方法结合试验设计与统计分析，在全局范围内进行参数筛选，以监测系统实测动力特性为优化目标，利用响应面优化技术完成模型整体修正；以列车过桥时典型静力效应进行校准实现模型局部修正。以钱塘江大桥为例给出了具体的计算过程，计算值与现场实测值吻合较好。%Based on the data of bridge health monitoring system,a new method of finite element model modification of railway steel truss bridge was introduced by combination of dynamic optimization and static effect calibration. The experimental design and statistical analysis were adopted to select parameters in the global scope. The measured dynamic performance of the monitoring system was used as the optimization objective,and the whole model was modified by the response surface optimization technology,the partial model was calibrated by the typical static effect of train passing through. T aking the Qiantang River Bridge as an example,the process of calculation was given in detail,and the calculated results were in good agreement with the field measurements.
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