For mixed-use buildings, the compatibility of floor grids between the commercial, car parking and residential levels is a key factor in the design solution and is more easily achieved using steel construction. The main market for steel in this sector is in multi-storey residential buildings, and particularly buildings of mixed-use, where the lower levels are for commercial use or, in some cases, for basement car parking. Steel is also a lightweight construction system which minimises loads on the foundations, and therefore saves on sub-structure costs, which can be important on ‘brownfield’ or infill sites or for building extensions.
Offsite steel construction technologies improve the final quality of the building and its speed of construction. The use of steel in the housing and residential building sector has grown in recent years primarily because of the growing appreciation of the performance benefits that arise from the offsite nature of the construction process, which is particularly important in urban or mixed-use buildings.
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