PRFELB - Plane Rigid Frame Elastic Lateral Buckling

General Specifications

PRFELB is a user-friendly computer program for predicting the elastic flexural-torsional buckling load factor of beams and plane rigid frames. The frame can be subjected to point forces and moments and uniformly distributed loads in its plane. The frame can be restrained by rigid or elastic restraints, or continuous elastic restraints. The members may be monosymmetric such that their plane of symmetry is the plane of the structure. PRFELB can also analyse the flexural-torsional buckling of beams of any cross-section, provided the axial forces are zero. PRFELB first performs a 1st order elastic analysis of a plane rigid frame. It calculates the in-plane pre-buckling stress resultants which are then used in the flexural-torsional buckling analysis. The results of the 1st order elastic analysis include the in-plane deformations and stress resultants at buckling. The results of the flexural-torsional buckling analysis include the buckling load factor and the buckled shape. Simply supported and continuous hot-rolled beams and cold-formed purlins can be designed with PRFELB by the methods described in the Australian Steel Structures Standard AS 4100-1990 and the Australian/New Zealand Cold-Formed Steel Structures Standard AS/NZS 4600:1996.

Detailed Specifications

Download the detailed specifications of PRFELB as a PDF file.

Typical Screenshot

Sales Enquiries

Information about computer software and prices is available from:

Dr John Papangelis
Phone: 61 2 9351 3837
Fax: 61 2 9351 3343
Email: jpp@civil.usyd.edu.au