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The Structural Engineer, Volume 74, Issue 9, 1996
In the design of reinforced concrete slabs the Wood-Armer equations are used extensively. However; their direct application to assessment can result in a conservative estimate of structural capacity. Equations based on the same fundamental principles are derived which provide a more precise measure ofthe ability of a given slab to withstand an imposedfield of moments. Application of these equations will lead, in many cases, to an improved assessment for bridges previously analysed using the Wood-Armer equations and found to require a load restriction. S.R. Denton and C.J. Burgoyne
Serving on construction-industry awards panels is almost invariably interesting but can be disappointing if assessors are aware of some other projects well worthy of an award, which were just not entered. In terms of numbers the engineering entries are frankly disappointing when compared with the very many architects who enter. These notes are written in the hope of future redress in this and also to reduce possible mystique surrounding the subject of awards. S.B. Tietz
A vast number of engineering products are protected, or capable of being protected by English law. The design of the product is or may be protected by copyright, or by the registration of the design at the Patent Office, or by the relatively new Unregistered Design Right, or else the invention itself is capable of being patented if new and if it can be made to work. Philip J. Harris