ON THE ACCESS LIMIT OF WEB PERFORATION TO STEEL BEAM END

Abstract

The basic condition of limit state design for beams is that beams show sufficient plastic deformation capacity by generating plastic hinges at the beam ends. Concerning beams with web perforation, this condition is also satisfied when opening located in a distance from the beam end is not dameged prematurely. In this paper, design formulae for evaluating strength of opening part and limit distance of the opening from the beam end are proposed. And an experiment was performed for verifing the propriety of the design formulae and the plastic deformation capacity of the beams with web opnenings.