chapter
93 Pages

VR = 0,204

IN-PLANE STABILITY INVESTIGATIONS FOR PRACTICAL PITCHED-ROOF STEEL FRAMES: ARE THEY REALLY NECESSARY?

HANS SCHOLZ Department of Civil Engineering University of the Witwatersrand

Johannesburg, South Africa

ABSTRACT

The results of a study are presented comparing in-plane stabi­ lity aspects, ductility demand and sway limitations of pitchedroof steel frames designed by simple plastic analysis. The ob­ ject of the study has been to identify domains governed by sta­ bility, ductility or sway. It has been concluded that for prac­ tical frameworks in-plane stability is never critical. Sway li­ mits, ductility requirements and practical slenderness limits govern the design.