【摘要】 本文介绍了运用波速法对刘家峡大坝材料动力特性所进行的现场测试,测定了该坝几种组成材料的特性参数(即E、G、μ)值。为了论证对坝体材料动力特性测试值的可靠性,还以现场测试数据用“直接滤频法”计算了坝体的自振特性,并与现场测试自振特性进行了比较,结果相当一致。更多还原

【Abstract】 This paper introduced the measurements of material dynamic characteristics of Liu Jia Xia Dam made by using wave-velocity method. The values of the characteristic parameters E, G and μ of several kinds of composite materials of the Dam were measured. In order to confirm the reliability of the measurement values of the material dynamic characteristics of the Dam, the calculations of the frequency of free vibrations of the Dam were made by means of direct frequeucy-filtering method with the measured data and the results were also compared with that of the measured values. The results show that they are in good agreement with each other.更多还原