Author: Taylor, R G
First published: N/A
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Taylor, R G
This paper summarises the conclusions drawn from the results of extended tests of cold formed Z-section purlins of the type shown in Fig. 1.
The effect of transverse loading on a single panel square slab supported on fully composite flexible beams is considered. An elastic, small deformation analysis is made
using finite difference techniques. The significant features of the results are examined and a comparison made with experimental tests on small perspex models. Some
simple design rules are suggested which approximate closely to the theoretical results.
M.A. Khan and K.O. Kemp
At the open meeting of the Institution held on 8 January 1970 (see p. 3 of The Structural Engineer, January 1970, Mr. A. J. Leggatt, presenting the above graph, said:
‘I have concocted a graph (Fig Dl) which is, at the least, controversial; and if it is so controversial that people laugh at it then I will escape under your clause of light-heartedness. I have plotted “claim” as a percentage of the contract sum. Profit is also expressed as a percentage and I qualify that as “tender profit”-that is the profit that the contractor hopes and aims to make at the time of tender. I think the contractors will giggle at the maximum of 25 per cent, but you can put your own values for this graph and the principles remain the same. I have also introduced a new parameter “Ti” which gives it a scientific appearance. “Ti” is the “tightness” of the contract.‘