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Royal Sun Alliance
A concrete structure, with a shear core surrounding the lifts and a moment
resisting perimeter frame, was selected to minimise wind induced building vibration and
to satisfy other structural and architectural design objectives.
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Extensive use was made of precast concrete including prestressed floor units, cantilever floor slabs, and beams
complete with precast beam / column joint zones, to speed up construction and to simplify the work on site.
Precast concrete enabled time and cost objectives to be met and ensured a high quality structure.
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Transparent mock-ups of beam / column joints were made and test grouted off site to
establish the feasibility and quality of grouted connections
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