Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Earthquakes and Structures Volume 13, Number 1, July 2017 , pages 79-87 DOI: https://doi.org/10.12989/eas.2017.13.1.079 |
|
|
|
Numerical and random simulation procedure for preliminary local site characterization and site factor assessing |
||
Mohamed Beneldjouzi, Nasser Laouami and Abdennasser Slimani
|
||
| Abstract | ||
| Seismic analysis of local site conditions is fundamental for a reliable site seismic hazard assessment. It plays a major role in mitigation of seismic damage potential through the prediction of surface ground motion in terms of amplitude, frequency content and duration. Such analysis requires the determination of the transfer function, which is a simple tool for characterizing a soil profile by estimating its vibration frequencies and its amplification potential. In this study, numerical simulations are carried out and are then combined with a statistical study to allow the characterization of design sites classified by the Algerian Building Seismic Code (RPA99, ver 2003), by average transfer functions. The mean transfer functions are thereafter used to compute RPA99 average site factors. In this regard, coming up seismic fields are simulated based on Power Spectral Density Functions (PSDF) defined at the rock basement. Results are also used to compute average site factor where, actual and synthetic time histories are introduced. In absence of measurement data, it is found that the proposed approach can be used for a better soil characterization. | ||
| Key Words | ||
| transfer function; simulation; RPA99; site factor; Power Spectral Density; random vibrations | ||
| Address | ||
| Mohamed Beneldjouzi: Water, environment, Geomaterials and structures laboratory (LEEGO), Faculty of Civil Engineering, University of Science and Technology Houari Boumediene, Algiers, 16111, Algeria Nasser Laouami and Abdennasser Slimani: Earthquake Engineering Applied Research Center (CGS), Rue Kaddour Rahim, Algiers, 16040, Algeria | ||