Author: Lee, D J
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Lee, D J
Concepts of Structures, by William Zuk (New York: Reinhold Publishing Corp., 1963) 9 x 6 in., 79 pp., 48s.
Dr. D. D. Matthews (Vice-president) had a series of technical questions to put to the author. What did he consider to be the maximum practicable weight to handle on a building site? Fig 3 of the paper showed some hammer head cranes of a type that Dr. Matthews had seen only in Eastern Europe. He was interested to have any data that could be given about the loads these could carry, as well as the speed of lifting.
Mr. I. M. Nitkin of the Engineering Laboratory, Cambridge, writes:- 'Professor Neal and Dr. Griffiths have demonstrated quantitatively that the capacity of a redundant truss is not necessarily exhausted upon first buckling. This is a fact not generally understood. It is interesting to note that, for the particular truss considered by the authors, the shape of the load-deformation curve for the strut BD makes very little difference to the ultimate load.'