Effects of Factors That Influence Out-of-Plane Lateral-Torsional Buckling on Freestanding Circular Arches

Abstract EN

This paper presents the effects of the several factors that influence lateral-torsional buckling on freestanding circular arches.

The studied factors that attribute to the effects of lateral-torsional buckling include cross section type, included angle, slender ratio, imperfection, loading, and boundary conditions.

From the reviewed studies, the misrepresentation of these factors to a certain extent may yield inaccurate results.

Several studies and design codes have proposed different solutions to account for these factors in designs against lateral-torsional buckling for some structural elements.

However, there were no studies reported on the out-of-plane lateral-torsional buckling of fixed circular arches made of structural aluminum channel sections subjected to central concentrated load.

Therefore, there is a need for further research on the lateral-torsional buckling real behavior of fixed circular arches of structural aluminum channels.