Lateral Buckling Tests on Coped Steel Beams

Lateral–distortional buckling of I-beams and the extrapolation techniques

“…lateral deflection (δ) and rotation (φ), have been separately applied to determine critical loads through extrapolation techniques. Cheng and Yura [14] and Gregory [15,16], for instance, conducted experiments on lateral-torsional buckling of beams, and successfully determined the critical buckling condition by assuming that the Southwell Plot would be valid, separately, for both lateral deflection (δ) and rotation (φ). They made plots of δ/M (or δ/P) against δ, and φ/M (or φ/P) against φ.…”

Experimental and numerical parametric study on the capacity of coped beam ends

“…LTB of end coped I-beams has been investigated by several authors [1][2][3][4][5][6][7][8][9][10]. These investigations range from classical energy solutions for general beams to FE studies on complete assemblies of beam and connections and cover cases with copes at one or both flanges and various connections, such as end-plates, partial end-plates and web angles.…”

Lateral Torsional Buckling of Rectangular Reinforced Concrete Beams

“…According to Cheng and Yura (1988), the deviation of the initial points from the ultimate straight line is caused by the initial restraints in the test setup and other experimental errors which are more influential at the initial stages of loading when the applied load is small. Based on the analysis of the experimental data obtained by Cheng and Yura (1988), Mandal and Calladine (2002) found out that the deviation of the initial data points from the eventual straight line is greater in the Massey's (1963) version of the Southwell (1932) plot. This is most probably due to the use of P 2 instead of P in Massey's (1963) plots.…”