Precast fibre-reinforced self-compacting concrete slabs

摘要

The concrete precast industry often has to cope with the difficulties concerning the production of structural elements with complex or atypical shapes. This is the case of flat concrete slabs, whose thin geometry involves difficulties in the placement of reinforcement, resulting in a large cost and time consumption during the construction process. This paper presents the results of research project which aims to optimize the geometry and the reinforcement of floor slabs for precast electrical equipment shelters. The results obtained by testing five simply supported full scale steel-fibre-reinforced self-compacting concrete thin slabs, subjected to point loads and continuously supported over the four edges, are reported and discussed. Non-linear finite element simulations are also presented to corroborate the experimental results and propose design solutions for reinforcement optimization.