Author: Kolosowski, J
First published: N/A
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A discussion meeting will be held on Thursday 9 January 1964 at the Institution, when the above subject will be under review.
The method of complex potentials is applied to determine the internal forces in a stretched isotropic, circular ring-shaped plate subjected to tangential forces ôrè = -A sin è at its inner boundary and to an isolated point force at its outer boundary. Because of the double singularities (concentrated force and non-vanishing resultant on each boundary) the problem is solved by the sum of a closed expression and of a complex Fourier series. A numerical example is presented for the calculation of ó è at each boundary.
S. SARKADI SZABO
This paper reports on loading tests made on a pair of prestressed steel girders designed for use in an elevated roadway scheme in London. The consulting engineers were engaged in preparing a report comparing various forms of construction before recommending the most suitable scheme to the clients, and the tsets were carried out as part of this investigation.
E. V. FINN and F. H. NEEDHAM