Behavior of column base plates under bi-axial bending moment
Abstract
Base plates of corner columns in buildings are usually subjected to biaxial bending moment combined with axial force. This combination of forces is not covered by most of the existing design methods and particularly of the component method adopted in Eurocode 3 Part 1-8 that treats exclusively the case of a bending moment about the major (strong) axis combined with an axial force This paper deals with a full-scale experimental test program of six column bases subjected to bi-axial bending moment, focusing on the influence of the thickness of the base plates and bending loading conditions on the overall behavior. The presented results are expected to be useful for the validation of analytical models for the resistance, initial stiffness and rotational capacity calculation to be developed in the future. © SDSS 2019 - International Colloquium on Stability and Ductility of Steel Structures.