Volume 8, Issue 4 (3-2015)                   2015, 8(4): 2435-2462 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

mahdavian A, fathi azar kalkhoran A. Effect of soil nonlinearity on ground motion amplification in Urmia City. Journal of Engineering Geology 2015; 8 (4) :2435-2462
URL: http://jeg.khu.ac.ir/article-1-1716-en.html
1- , mahdavianabbas@yahoo.com
Abstract:   (7878 Views)
Direct observation and experience of past earthquakes together with modeling carried out by researchers, has shown that ground motion acceleration and frequency is affected by the nonlinear behavior of site soil. In the process of assessing the seismic response of structures and lifelines, it is essential to understand the nonlinear behavior of the soil and how it can affect the results. In this paper, the nonlinear behavior of Urmia's subsurface soil is studied by performing one dimensional nonlinear site response analysis in time domain. Artificial acceleration time histories that were synthesized based on the result of seismic hazard analysis, conducted over three return periods, are used as input motion. Spectral acceleration at the ground surface is compared with those calculated for seismic bedrock, and spectral acceleration amplification curves are obtained. These curves show that, the amplification is greater in the central and eastern regions of the city than those for other regions of the city because of a deeper soil profile. The results show that the maximum amplification for higher return period is smaller because of greater soil nonlinear behavior
Full-Text [PDF 1299 kb]   (3193 Downloads)    
Type of Study: Original Research | Subject: Geotecnic
Accepted: 2016/10/5 | Published: 2016/10/5

Add your comments about this article : Your username or Email:
CAPTCHA

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Journal of Engineering Geology

Designed & Developed by : Yektaweb