AN EXPERIMENTAL STUDY ON ULTIMATE STRENGTH OF THIN-WALLED BOX STUB-COLUMNS WITH STIFFENERS SUBJECTED TO COMPRESSION AND BENDING

Abstract

This paper presents the experimental study on the ultimate strength of thin-walled box stub-columns with the longitudinal stiffeners subjected to compression and bending. Eight columns were tested up to failure under the conditions of uniaxial and eccentrical compressions. These results were arranged from various point of views and the ultimate strength was plotted as the interaction curves of compression and bending. By introducing a plate slenderness for the stiffened box stub-columns, an empirical formula for evaluating their ultimate strength was proposed herein.