Abstract
Flexural–torsional buckling considerations usually control the design of unbraced steel beams and beam–columns. Although there are many sources of information on elastic buckling, these are not comprehensive, and often difficult to access. This paper describes and exemplifies a single comprehensive source of information, the computer program PRFELB for the elastic flexural–torsional buckling analysis of a wide range of beams, beam–columns, and plane frames. PRFELB is a user-friendly computer program, with menus and data and help screens that advise and assist in data input. Graphics can be used to check the geometry and to display the buckled shapes. The use of PRFELB will assist designers to implement the method of design by buckling analysis which is permitted in modern structural steel design standards, either explicitly or implicitly.
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