Seismic Behaviour of Moment Connections of Boxed-Column with Side Plates

Abstract eng:
Use of side plate in moment connections has enhanced the seismic behavior of connection specially in retrofitting project. The geometry of this connection eliminates recognized brittle behavioral uncertainties that are intrinsic with the use of a T-joint complete-penetration groove weld to connect beam flanges directly to a column flange. The significance of these uncertainties is characterized by unprecedented financial losses that resulted from the Northridge Earthquake. Results of an analytical investigation of cyclic behaviors of 13 models with side plates between IPE beam and box columns are presented in this paper. The analysis was conducted using the ANSYS 5.4 software. The results indicate that this type of connection has sufficient stiffness, strength and ductility to classify it as rigid, full-strength, ductile connection. Therefore this paper will present the models, finite element procedures and results obtained in this study which all indicate enhanced behavior resulted from using side plates in this type of connections.

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