Author: Illston, J M;England, L
First published: N/A
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Illston, J M;England, L
Mr. J. Peacock: ‘Mr. Thorburn said that the use of the Armco liner in the piles stopped ground water from getting into the bore; but it could still fill up the bottom
of the bore, as far as I could see, so really what does the Armco liner do? It seems quite expensive to put there, and I do not see how it stops water from getting into
the bottom of the bore.’
The paper describes an investigation into the ultimate behaviour of concrete beams reinforced with bars with proof strengths varying between 414N /966N/mm2 (60 000 and 140 000 lb/in2). A method by which the ultimate bending moment can be calculated to agree reasonably with the experimental results. It is shown that steel with a yield point of up fo 552 N/mm2(80 000 lb/in2) can offer worthwhile economic advantages and that the crack widths associated with the higher working stresses are tolerable for normal exposure.
L.A. Clark and Professor W. Eastwood
The Council announce the formation of a further Study Group, details of which follow
Statutory Control of Building and Engineering Works
This is the third Study Group approved by the Council and Mr. R. M. Silber, CEng FIStructE, FIAS, 365 Brixton Road, London SW9, has agreed to act as Convener.