【摘要】 笔者于文中提出了测量常见水工建筑物自由衰减振动以评估其老化程度的方法．通过某引水枢纽工程输水渡管修补前后振动信号的对比分析，对振动法的理论和实践进行了初步探讨．结果表明：用振动法评估常见水工建筑物的老化程度是可行的，它弥补了常规方法的不足．更多还原

【Abstract】 This paper proposed a method of testing its freedom attenuation vibration so as to e-valuate ageing degree of common hydraulic structure. Through testing, analysing and comparing freedom attenuation vibration on some water pipeline in certain key water contral project, before repairing and after and practice of the vibration method. The result showed it available to evalu-ate ageing degree of common bydraulic structure by means of vibration method, Which make up the inadeguate espects of the routine method.更多还原