Evaluating Masjed Soleyman Rockfill Dam Dynamic Characteristics by Earthquake Records

In this paper, Recorded earthquake signals on different stations by available accelerometers which have been installed on Masjed Soleyman embankment dam are used. As the earthquake signals are non-stationary, the classical signal processing techniques can’t present the appropriate dynamic behavior of the dam under earthquake loadings and consequently, time–frequency distribution (TFD) analysis method is proposed. The recorded earthquake signals on dam are processed by classical and recently developed signal processing methods and the obtained results based on two methods are compared. The results show that hidden frequencies in classical methods can be extracted by TFD method.

Keywords:

Earthquake Records , Embankment Dam , TFD Method