Torsional Restraint of Lateral Buckling

Abstract

Elastic solutions to six problems in lateral-torsional buckling of I-beams with torsional restraint are presented. The loadings considered are equal moments at the end, concentrated load at mid-span at the shear center, and uniform load at the shear center. Two types of torsional restraint are considered: point torsional restraint, and continuous torsional restraint. All solutions, with one exception, are obtained by numerical methods and the results are presented in the form of charts.