DESIGN METHODS AND EXPERIMENTAL STUDY ON THE STABILITY BEHAVIOR OF TAPERED BEAM-COLUMNS WITH SINUSOIDAL CORRUGATED WEB

Tapered members are widely used in portal lightweight steel structures in Europe and Australia. Currently, the study is rare on the stability of the tapered beam-columns with sinusoidal corrugated web. Based on the design formulas in CECS 102:2002, the design formulas used to calculate the in-plane and out-plane stability capacity of the tapered beam-columns with sinusoidal corrugated web were proposed, and they were verified by FEM numerical results. A test program of 2 tapered specimens was carried out and the observed results consisted well with FEM results, thereby the proposed formulas were confirmed to be used rationally.