Steel-fibre-reinforced concrete elevated suspended slabs: Design cases in Europe and the USA

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Title: Steel-fibre-reinforced concrete elevated suspended slabs: Design cases in Europe and the USA

Author(s): Xavier Destrée

Publication: Special Publication

Volume: 310

Issue:

Appears on pages(s): 409-418

Keywords: Steel fibre, elevated, structural, suspended, slabs.

Date: 3/17/2017

Abstract:
The structural use of steel-fibre reinforcement has been used as a method of reinforcement of both ground suspended slabs supported by a grid of piles and elevated slabs. About 15 million square metres (circa 165 million sq. ft) of these ground suspended slabs, and about 100 buildings including these suspended elevated slabs, have been successfully completed so far, so that the latter is still considered by the ACI to be an emerging technology. Typical applications are warehouses, plants, offices, and condominium buildings, as well as towers and sport arenas. The span-to-depth ratio is in general higher than 10 and smaller than 30. The paper summarizes the practical suitable design method used in the real cases of one elevated suspended slab reinforced with steel fibres and structural integrity rebars in Spain and another one being a ground suspended slab reinforced only with steel fibres in the USA.