Author: Garrett, R J;Cochrane, R A
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Garrett, R J;Cochrane, R A
The Structural Engineer, Volume 48, Issue 3, 1970
Western Avenue Extension is a 4 km (2 1/2 mile) elevated road to near Motorway standards, currently under construction in West London. D.J. Lee
Particular requirements of a length of urban elevated motorway are described, which have been satisfied by the use of a bridge deck using ‘top-hat’ section box beams with no transverse diaphragms. The deck has proved economical and suitable for a wide range of bridges. During the development of the design of the deck, methods of analysis for the effect of concentrated loads have been investigated and the paper describes an approach based on finite element techniques and the derivation from this of a simpler technique for design ofice use, both of which provide satisfactorily accurate results. D.M.A. Hook and B. Richmond
Analytical and experimental studies have been carried out at Imperial College into various aspects of limit state design when applied to highway bridges. To obtain an indication of the inherent load factors against the various appropriate limit states, three typical bridges were theoretically investigated. The predicted load factors were compared with those proposed for use with new design procedures. Dr. A.R. Flint and L.S. Edwards