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The paper describes the micro-wave network of telephone and television communication and the different forms of tower structures which are required for this system with particular reference to the tower buildings at London (Museum) and Birmingham. The design of these towers presents new problems in the assessment of the wind characteristics and aerodynamic stability of the structures. L.R. Creasy, H.C. Adams and S.G. Silhan
L. R. Creasy, joint author of the paper to be presented on 14 October, gained early sxperience with contractors in both steel and reinforced concrete construction and on war service with the Royal Engineers. He is now Director Civil Engineering a the Ministry of Public Building and Works. The overall expenditure for which he is responsible is about £120 million per annum. The radio towers in London and Birmingham, the tallest buildings in the country, form part of the current programme.
The classical plate theory equations are solved numerically for the case of a load distributed over a small area of an infinite circular slab on an elastic foundation. The results are compared with Westergaard’s solution and a simple design chart presented. W.E. Scriven and W.R. Pilgrim