The Structural Engineer > Archive > Volume 58 (1980) > Issues > Issue 6 > Tests on Tapered Steel Columns
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Tests on Tapered Steel Columns

Details are given of tests on eight web-tapered I-section steel columns. The members were half to one-third full size and were fabricated from plate by welding. The ends of each member were pinned, with torsion and warping prevented. In three of the tests lateral restraint was provided to one flange at mid-length. The loading in all cases comprised axial load, together with a major-axis moment applied at one end. Failure occurred by inelastic buckling. The behaviour compared well with results from a non-linear elasto-plastic computer program. Ultimate load capacities predicted by design Codes were found to be conservative. Modifications to the British draft limit-state Code for structural steelwork in buildings are proposed, to provide better agreement with the test results. J.B. Salter, D. Anderson and I.M. May