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采用环境脉动法对淮河铁路大桥进行模态试验,得到桥梁的模态参数,并与空间有限元模型进行对比分析。结果表明计算结果与实测结果吻合良好,有限元模型很好地模拟了实际结构受力与边界条件。
The environmental pulsation method was used to carry out modal tests on the Huaihe Railway Bridge. The modal parameters of the bridge were obtained and compared with the spatial finite element model. The results show that the calculated results are in good agreement with the measured results. The finite element model well simulates the actual structural forces and boundary conditions.