President's midyear report

Despite the author’s demonstrable understanding and experience in the field, Nirupa Perera feels ultimately let down by the lack of clarity surrounding some key concepts.

Costas Georgopoulos and Andrew Minson challenge a review (supplied by Alasdair Beal and featured in the June 2014 issue) of their recently published book.

In this paper, expressions are developed which enable the designer to determine the load bearing capacity of concentrically loaded RC columns. The novelty of the paper is not the presented nonlinear solution of RC columns, rather the approximate 'back of the envelope' expressions, which are verified for the entire practical parameter range by a numerical solution.