In this work, the behavior of floors which use hollow core slabs as load bearing elements is investigated, focusing the attention on the case of floors with openings. This represents a quite common situation, which can be necessary to install technological systems and to execute stairwells or lift-shafts. An in-situ concrete topping is considered in the upper surface of the slabs, as it is nowadays almost compulsory to satisfy seismic prescriptions. NLFE analyses have been carried out by adopting 2D-PARC constitutive model to represent the reinforced concrete behavior. The procedure has been first validated by modeling some experimental tests carried out on HC slabs with concrete topping subjected to bending and shear. Several parametrical analyses have been then performed on HC floors with and without concrete topping and with big openings, by varying some parameters such as the numbers of cores in the slabs, the concrete topping thickness and the position of the opening, in order to evaluate their influence on the bearing capacity and on the stress state of the slabs.

Analisi non lineare ad elementi finiti di solai alveolari con cappa collaborante in presenza di aperture / P.Bernardi; R. Cerioni; N. Garutti; I. Iori; E. Michelini. - STAMPA. - 1(2010), pp. 143-152. ((Intervento presentato al convegno 18° Congresso CTE tenutosi a Brescia nel 11-13 Novembre 2010.

Analisi non lineare ad elementi finiti di solai alveolari con cappa collaborante in presenza di aperture

BERNARDI, Patrizia;CERIONI, Roberto;GARUTTI, Nicola;IORI, Ivo;MICHELINI, Elena
2010

Abstract

In this work, the behavior of floors which use hollow core slabs as load bearing elements is investigated, focusing the attention on the case of floors with openings. This represents a quite common situation, which can be necessary to install technological systems and to execute stairwells or lift-shafts. An in-situ concrete topping is considered in the upper surface of the slabs, as it is nowadays almost compulsory to satisfy seismic prescriptions. NLFE analyses have been carried out by adopting 2D-PARC constitutive model to represent the reinforced concrete behavior. The procedure has been first validated by modeling some experimental tests carried out on HC slabs with concrete topping subjected to bending and shear. Several parametrical analyses have been then performed on HC floors with and without concrete topping and with big openings, by varying some parameters such as the numbers of cores in the slabs, the concrete topping thickness and the position of the opening, in order to evaluate their influence on the bearing capacity and on the stress state of the slabs.
978-88-903647-6-1
Analisi non lineare ad elementi finiti di solai alveolari con cappa collaborante in presenza di aperture / P.Bernardi; R. Cerioni; N. Garutti; I. Iori; E. Michelini. - STAMPA. - 1(2010), pp. 143-152. ((Intervento presentato al convegno 18° Congresso CTE tenutosi a Brescia nel 11-13 Novembre 2010.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2333867
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