NDLI: Numerical Modelling of the Punching Behaviour of Steel Fibre Reinforced Self- Compacting Concrete Flat Slabs

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Numerical Modelling of the Punching Behaviour of Steel Fibre Reinforced Self- Compacting Concrete Flat Slabs

Content Provider	Semantic Scholar
Author	Neto, Morais Ventura-Gouveia, António
Copyright Year	2013
Abstract	Punching shear failure on flat reinforced concrete slabs of residential and commercial buildings is generally avoided by using transversal reinforcement and/or chapiters. The first option requires intense labour, mainly when d ensely flexural reinforcement exists in the potential punching failure region, with detrime ntal consequences in terms of costs of this construction solution. The second option has a lso extra costs due to the necessity of special arrangements of moulds for casting the chap iters. The interference of a chapiter on the flatness of the slab can also be a negative asp ct from the architectonic point of view. The use of steel fibre reinforcement can be a solut ion to avoid both the conventional punching reinforcement and chapiters. Therefore, an experimental program was carried out to assess the potentialities of steel fibre rei nforced self-compacting concrete (SFRSCC) for the punching resistance of flat slabs centrical ly loaded. This experimental program is described, and the main results are presented and a nalysed. To assess the potentialities of the Reissner-Mindlin FEM-based theory for modelling the behaviour of flat SFRSCC slabs submitted to punching loading configuration, new fe atures were introduced in the out-ofplane shear constitutive law of the SFRSCC. These f atures are briefly described and the main focus was given on the modelling strategy adop ted for simulating the punching tests.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://repositorium.sdum.uminho.pt/bitstream/1822/26261/1/IC_156.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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