IMPROVEMENT OF PLASTIC DEFORMATION CAPACITY OF H-SHAPED STEEL BEAM WITH FLAT BAR ON NEUTRAL AXIS

Abstract

In this study, to improve the plastic deformation capacity, flat bars are attached on the neutral axis of the beam with slender web plate. Plastic deformation capacity of this beam is considered. The calculation method of flat bar cross-section area is shown for the target of plastic deformation capacity of beams. Flat bar length regards to the ratio of shear strength to bending strength of a beam. It is possible to make web local buckling concentricity at the beam end by the flat bar at the beam end, and it leads to improvement in plastic deformation capacity.