Tests on RC slabs

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Prescient project: The contribution and performance of RC slabs in the progressive collapse of structures subjected to accidental loads is investigated via testing a substructure of a two-span slab. A 2/3 scaled RC slab substructure designed according to current code procedures was tested quasi-statically. During the test several hairline tensile cracks were observed near the middle support of the slab, however the specimen failed at 400mm tip displacement due to formation of a through-crack at the cut-off point of middle support reinforcement.