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The Structural Engineer, Volume 47, Issue 10, 1969
Mr. A. Butler: 'Mr. Huntley quoted a figure of £180 000 for the cost of the special equipment for handling the large precast units, which represents a little over 1 per cent of the total contract price. Presumably it represents a considerably higher percentage of the contract price for the large units. Nevertheless, it seems an extremely low figure.'
The discussion on this paper was published in the September issue of The Structural Engineer (page 375). M. N. Esquillan has since written the following note in reply to Mr. J. Levy's question about the cost of formwork. M. Esquillan: 'Formwork and scaffolding complete for the whole roof from springing to springing cost as follows: Formwork 44 500m2 l 950 000 F Scaffolding 3 650 OOO F 5 600 000 F this gives the following cost per m2 of plan: 5 600 000 / 11 980 = 476 F This are 1965 figures; today the cost would be about 15 per cent higher.
The papers by Dr. Rasbash and Mr. Stretch will be offered for discussion at the Ordinary Meeting of the Institution on 23 October. Attention is drawn to the fact that, as stated by Dr. Rasbash in his introduction, most of the experience available at the Fire Research Station on the subject of gas and vapour explosions is concerned with such explosions in industrial plant and buildings; Mr. Stretch, as his conclusions mention, feels considerable extrapolation is still required to fit all the known facts into any theory coherent enough to offer a reliable Code of Practice to guide future designs. The Ordinary Meeting on 23 October provides an opportunity for Chartered Engineers to place on record their opinions of these assessments of available information upon what is becoming an issue of extreme importance in structural design. D.J. Rabash and K.L. Stretch