Study on Seismic Behavior of Steel Frame Beam End Flange Expanded Airfoil Joints 

Hui Ma

      School of Architecture Engineering, Binzhou University, Binzhou, 256600, China 

Abstract: In this paper, the numerical analysis of the expanded airfoil joints is carried out. The three-dimensional non-linear finite element analysis of the expanded airfoil joints under cyclic loads is carried out by using ansys finite element software. The effects of the initial position, width and length of the enlarged flange on the stress of the joints, the distribution of plastic hinges, the failure mode of the specimens and the ultimate ｌｏａｄ are systematically discussed. The location of plastic hinges is predicted and the recommended reference values for the selection of parameters of wing enlargement are given.

Keywords: Widen width; Limit ｌｏａｄ; Maximum plastic rotation angle