Author: Steel Construction Institute (SCI)
29 May 2014
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Steel Construction Institute (SCI)
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.
The provision of beams with web openings has become a common method of incorporating services within the structural depth of a floor. Although specialist software is available to design such beams, guidance regarding sizing, spacing and best practice is useful for engineers performing scheme design.