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通过试验研究了桥梁节段模型动力试验中模型本身的刚度和支撑位置对颤振导数测量结果的影响 .结果表明节段模型本身的刚度对测得的扭转颤振导数A2 有较大的影响 ,而支撑位置不影响A2 的临界位置 .
The influence of stiffness and supporting position of the model on the measurement of flutter derivatives was studied through the experimental study.The results show that the stiffness of the segment model has a great influence on the measured torsional flutter derivative A2, The supporting position does not affect the critical position of A2.