本文针对铁路桥梁动态测试中的幅值分析问题.从测试原理上就如何识别波形畸变、如何结合具体时域波形选择正确的分析方法.进行了理论分析与实例讨论.提出了各种幅值分析方法的适用条件.对具体方法的应用提出了建议

In this paper，aimed at the issue of the value of amplitude in vibration test for railway bridge，a theoretic analysis and an example discussion about how to identify the aberrance of wave form and how to choose a proper amplitude analytic method are carried through. The fitting conditions of diversified analytical methods of the value of amplitude are discussed. An advice to the application of these frontier methods is set forth.