Volume 9, Issue 4 (3-2016)
2016, 9(4): 3151-3174 |
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Yazdi M, Komak Panah A. Recommendation of Earthquake Equivalent Horizontal Acceleration Coefficient in Polymeric Strips Reinforced Soil Retaining W. Journal of Engineering Geology 2016; 9 (4) :3151-3174
URL: http://jeg.khu.ac.ir/article-1-2058-en.html
URL: http://jeg.khu.ac.ir/article-1-2058-en.html
1- , yazdi_ma@yahoo.com
2- Associate Professor, Department of Civil and Environmental Engineering, Tarbiat Modarres University
2- Associate Professor, Department of Civil and Environmental Engineering, Tarbiat Modarres University
Abstract: (6731 Views)
As usage of reinforced soil structures is highly increased in seismic active zones, the analysis of dynamic behavior of these structures begins to be of great significance. The present paper is an attempt to study the seismic behavior of reinforced soil retaining walls with polymeric strips. The consequences of the most principal parameters counting the length of reinforcement, reinforcement arrangements (zigzag vs. parallel), maximum base input acceleration and wave frequency on the wall displacement have been investigated for sensitivity analyses. The main drawback of numerical methods in dynamic analysis is being very time consuming. Therefore, determination of equivalent coefficients is a suitable, easy and beneficent approach to converge results of pseudo-static and dynamic methods. In this case, a relatively accurate design is achieved by using pseudo-static method that takes less time. To this end, an earthquake equivalent horizontal acceleration coefficient is proposed by considering horizontal displacement of the wall as the basis for comparison
Keywords: Retaining wall, reinforced Soil, polymeric strips, dynamic analysis, earthquake equivalent horizontal acceleration coefficient
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