Steel structures
Fig. 3.38 The elements of the Unistrut space deck system. This is based on lightweight cold-formed sections and an
ingenious jointing component. The efficiency with which load is transmitted through the joints is low, however, and the
system is capable of relatively short spans only.
efficiency, but proprietary space-frame systems
are nevertheless normally significantly lighter
than conventional single-plane, one-way-
spanning arrangements. They are also cheaper
than one-off space-frame systems and the
precision which can be achieved with economy
by the use of production-line techniques in
fact makes the proprietary space frame one of
the cheapest of the more sophisticated forms
of structure.
Fig. 3.39 Spacedeck
space frame system
supported around its
perimeter at the Aberfan
Centre, Wales. [Photo:
Henry Morgan]
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