13th Drury Medal Competition 1971

Mr. J. S. Trentham: It was obvious that this job was going to be one of great interest from the very beginning although nobody envisaged that it would receive the Concrete Society Award for 1971.

In the January issue of The Structural Engineer, p. 28, there was a report on the damage to a 7-storey office block in Belfast caused by a bomb attack. This report has been interpreted by some engineers as an indictment against permanent wood-wool formwork, which is unfortunate.

Mr. Parkhouse has presented a simple model to represent a cellular deck without intermediate diaphragms. The model has then been analysed for various loadings to determine the corresponding transverse distribution coefficients based on deflexion and moment. The loadings and deflexions have been represented as a sinusoidal series.