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