Evaluation of Site Effects on Strong Ground Motion

Nowadays, earthquake is one of the most devastating natural disasters that can be somewhat resisted by reinforcing structures. From an engineering perspective, the importance of an earthquake is due to it’s effect on structures such as residential housings, dams, bridges, nuclear facilities, industrial installations and so on. Evaluating the ground response is one of the main issues in geotechnical engineering which has raised new challenges for engineers. Ground response analysis is used for predicting ground surface motions. Among the factors influencing the prediction of strong ground motion is site effects. These effects include source, path and site effects, topography effects and soil layering effects. In this paper, the results of accelerographs are first modified by using the SEISMOSIGNAL software (band-path filter of 0.2-30 Hz and modifying the baseline), and then by using DEEPSOIL software, the results are analyzed directly from station (1) to station (2) and by deconvolution from station (2) to station (1) in both time and frequency domain.

Keywords:

Site Effect , Strong Ground Motion , SEISMOSIGNAL , DEEPSOIL Software , Time Domain , Frequency Domain