Punching of Flat Slabs under Reversed Horizontal Cyclic Loading

Citation:
Punching of Flat Slabs under Reversed Horizontal Cyclic Loading, Ramos, António, Marreiros Rui, Almeida André, Isufi Brisid, and Inácio Micael , ACI Fall Convention 2016, Philadelphia, (2016)

Abstract:

Flat slab structures are a very common structural solution nowadays, due to their architectural and economic advantages. However, flat slab-column connections may be vulnerable to punching failure, especially in an event of an earthquake, with potentially high human and economic losses. This type of structural solution is adequately covered by design codes and recommendations in North America, due to a large amount of experimental research carried out. In Europe the situation is different, missing specific guidance to flat slab design under earthquake action in most European codes. The ACI 318-14 prescriptive approach to the gravity shear ratio-drift ratio relationship shows good agreement with experimental results. Following a similar approach and, based in a databank containing cyclic horizontally loaded tests of slab-column connections found in literature, proposals are made applicable to EC2 and MC2010.

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