for Seismic Risk Management

Decision-making techniques are used to select the “best ” alternatives under multiple and of-ten conflicting criteria. Multicriteria decision making (MCDM) necessitates to incorporate uncertainties in the decision-making process. The major thrust of this article is to extend the framework proposed by Yager(1) for multiple decisionmakers and fuzzy utilities (payoffs). In addition, the concept of expert credibility factor is introduced. The proposed approach is demonstrated for an example of seismic risk management using a heuristic hierarchical struc-ture. A step-by-step formulation of the proposed approach is illustrated using a hypothetical example and a three-story reinforced concrete building. KEY WORDS: Evidence theory; fuzzy; multicriteria decision making; OWA; seismic risk management; uncertaint