ABSTRACT
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.
