Fuzzy analysis for stability of steel frame with fixity factor modeled as triangular fuzzy number

Tran Thanh Viet, Vu Quoc Anh and Le Xuan Huynh

Abstract

This study presents algorithms for determining the fuzzy critical loads of planar steel frame structures with fixity factors of beam - column and column - base connections are modeled as triangular fuzzy numbers. The finite element method with linear elastic semi-rigid connection and Response Surface Method (RSM) in mathematical statistic are applied for problems with symmetric triangular fuzzy numbers.The

Key Words

steel frame; critical load; fuzzy connection; response surface method; differential evolution algorithm

Address

Tran Thanh Viet: Department of Civil Engineering, Duy Tan University, K7/25 Quang Trung, Danang, Vietnam Vu Quoc Anh: Department of Civil Engineering, Ha Noi Architectural University, Vietnam Le Xuan Huynh: Department of Civil Engineering, National University of Civil Engineering, Hanoi, Vietnam

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