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General Information
Prof. T. Hikmet Karakoc
Anadolu University, Faculty of Aeronautics and Astronautics, Turkey

IJET 2013 Vol.6(3): 182-185 ISSN: 1793-8236
DOI: 10.7763/IJET.2014.V6.692

Fuzzy-Logic Tree Approach for Seismic Hazard Analysis

N. Tahernia
Abstract—This study presents an approach for seismic hazard analysis based on logic tree and fuzzy sets theory. To accomplish seismic hazard analysis in the framework of fuzzy sets theory, all of the variables are first converted into fuzzy sets using α-cut method. Calculations have been made for various combinations of them and also applying logic tree approach. Extracted output in the framework of fuzzy are defuzzified using mean of maxima method. The method is applied to Tehran site and the hazard curve is obtained. Peak ground accelerations are estimated to be 0.17g and 0.34g for 10% and 63% probability of exceedance in 50-year, respectively. Outcomes of this study would contribute for the quick and better estimation of the seismic design of structures.

Index Terms—Fuzzy method, logic tree, probabilistic approach, seismic hazard analysis.

N. Tahernia is with the Department of Physics, Parand Branch, Islamic Azad University, Parand, Iran (e-mail: taherniapiau.ac.ir)


Cite:N. Tahernia, "N. Tahernia," International Journal of Engineering and Technology vol. 6, no. 3, pp. 182-185, 2014.

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