桥梁墩台存在病害(如断裂、腐蚀、基础不稳等)时,在动力荷载作用下,其振动特性(如振幅、自振频率、振动波形等)都有不同的表现。因此,根据墩台在动力荷载作用下所表现出来的振动特性即可判断墩台是否存在病害。本文介绍了利用桥墩振动特性的分析,来判断桥墩隐蔽部分存在病害的实例,可作为从事这方面研究工作的同志们参考。也希望有关同志都来总结这方面的经验,使这种判断方法更臻完善。 The bridge piers have different behaviors (such as amplitude, natural frequency, vibration waveform, etc.) under the action of dynamic loads when there are diseases such as fracture, corrosion and unstable foundation. Therefore, according to the vibration characteristics of the abutment under dynamic load, it can determine whether the abutment is damaged or not. This paper introduces the use of analysis of bridge pier vibration characteristics to determine the existence of hidden parts of the piers examples of disease can be used as engaged in this research comrades reference. It is also hoped that the relevant comrades will come to sum up their experience in this respect and make this method of judgment more perfect.