Efficiency analysis of precast floor slabs

Are precast floor slabs efficient against cast-in-situ floor slabs despite their higher reinforcement level? This article provides an answer to the question.

Precast floor slabs consist of prefabricated floor elements supplemented with statically supporting cast-in-situ concrete. They combine the advantages of cast-in-situ construction with those of precast construction in a structural and efficient way. Nowadays, in Germany most floor slabs used in residential construction are designed as semi-precast floor slabs. [1]

As a result of the structural reinforcement at the slab joints required for uniaxial and – because of the lower statically effective height in one axial direction – for biaxial systems, precast slabs have a higher reinforcement level...

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