用调频质量阻尼器抑制铁路桥梁竖向共振的研究

Study on the Use of TMD in Controlling the Vertical Resonance of Railway Bridges

由于钢桥阻尼较小，在既有桥梁上开行准高速列车时桥梁可能产生竖向共振。为此作者对调频质量阻尼器（ＴＭＤ）－车桥系统进行了分析，探讨了桥梁共振机理，研究了用ＴＭＤ抑制铁路桥梁的竖向共振，结果表明是很有效的。

Because steel bridges exhiit low damping values,existing bridges can suffer resonance when a quasi high speed trainbis passing.In the present study a tuned mass damper train bridge system is analyzed,the mechanism of bridge resonance is approached,and the use of TMD to control the vertical resonance of railway bridges is studied.The results of study indicate that TMD is extraordinary effective for this purpose.