Author: Steel Construction Institute (SCI)
28 August 2014
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Steel Construction Institute (SCI)
The various high performance concretes that might be used for concrete bridges, to make them either quicker and easier to build, or more economic are discussed. The advantages of high strength, lightweight, fibre reinforced and self-compacting concretes are described, together with the use of new materials that can replace steel for both reinforcement and prestressing.
Portal frame buildings despite being very common, are a structural form with features that present particular challenges; this has led to specialisation by some designers and manufacturers. The purpose of this final article in the series is to identify and discuss these features, which are not usually found in buildings of more than one storey.
This final article in the composite part of this construction compendium looks at three aspects of construction; the provision of lateral restraint to the beams, whether the steelwork is propped and how the concrete is levelled.