Short-term and time-dependent design rules for slender RC columns of circular cross-section

A numerical method of analysis developed elsewhere by the Author which can be used to analyse the short-term and time-dependent behaviour of slender RC columns of circular cross-section under constant eccentricity, is described briefly. The method is used to investigate the accuracy of the design of circular columns implicit in the Australian Standard AS3600-1988. The code method is shown to be comparitively inaccurate for circular columns, and a design procedure for both short and long-term loading that may be readily implemented, is proposed.