Punching shear behavior of lightweight fiber reinforced concrete slabs

Caratelli, Angelo; Imperatore, Stefania; Meda, Alberto; Rinaldi, Zila

doi:10.1016/j.compositesb.2016.06.045

Cited by 38 publications

(17 citation statements)

References 13 publications

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“…In those circumstances, an increase in the rebar bond leads to a localization of deformations at a crack. Similar conclusions were found by Meda et al [30].…”

Section: Introductionsupporting

confidence: 88%

“…In can be clearly noted the variation of failure mode due to the fiber presence. In particular in the FRC M beam the fibers avoid the sudden and brittle concrete crushing, due to their capacity of improving the concrete toughness in compression [30]. The fiber presence leads to an increase of the yielding and ultimate load of about 21% and 19%, respectively, in agreement with other experimental tests [4,2].…”

Section: Results Of Monotonic Testsmentioning

confidence: 55%

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Monotonic and cyclic behaviour of lightweight concrete beams with and without steel fiber reinforcement

Caratelli

Meda

Rinaldi

2016

Construction and Building Materials

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“…In those circumstances, an increase in the rebar bond leads to a localization of deformations at a crack. Similar conclusions were found by Meda et al [30].…”

Section: Introductionsupporting

confidence: 88%

Section: Results Of Monotonic Testsmentioning

confidence: 55%

Monotonic and cyclic behaviour of lightweight concrete beams with and without steel fiber reinforcement

Caratelli

Meda

Rinaldi

2016

Construction and Building Materials

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“…The obtained experimental results were analyzed in the light of EN 1992-1-1 [5] and fib Model Code 2010 [7] provisions. Caratelli et al [2] found [7] rules as conservative if the aggregate particles did not break and aggregate interlock is possible. They suggested introduction of a factor accounting a partial break of the particles instead of assuming aggregate diameter equal to zero as is suggested in [7] by calculating kdg coefficient.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigations on Punching Shear of Flat Slabs Made from Lightweight Aggregate Concrete

Gołdyn¹,

Krawczyk²,

Ryżyński³

et al. 2018

Archives of Civil Engineering

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In the paper the results of experimental investigations concerning flat slabs made from reinforced lightweight concrete with sintered fly ash aggregate CERTYD were presented. In the research program 6 models made in a natural scale were included. The main variable parameter was slab longitudinal reinforcement ratio. The aim of investigation was the experimental verification of efficiency of double-headed studs as punching shear reinforcement. In the existing technical approvals such kind of reinforcement was allowed only in normal concrete slabs. It was demonstrated that double-headed studs can be an effective transverse reinforcement of lightweight aggregate concrete slabs. The use of double-headed studs resulted in increase in the ultimate load from 19% to 44%, depending on the slab reinforcement ratio which ranged from 0.5% to 1.2%. The comparative analysis showed that the Eurocode 2 provisions were conservative in relation to the experimental results, which were on average 42% higher than the theoretical ones however with a very low 7% coefficient of variation.

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“…Although fiber addiction does not modify remarkably the yield stress of the fresh mixture, they increase the viscosity. 4 A good distribution of the steel fibers in the HPC was obtained by using a high intensity rotating pan mixer. During filling the molds a visual examination on flow test of the fresh mixture allowed to detect the formation of fiber clusters.…”

Section: Methodsmentioning

confidence: 99%

Simple and effective models to predict the compressive and tensile strength of HPFRC as the steel fiber content and type changes

Savino

Lanzoni

Tarantino

et al. 2018

Composites Part B: Engineering

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HPFRC/UHPC are today widely applied as repair and reinforcement materials for structures. One of the\ud drawback of commercial HPFRC/UHPC is that any modification of the matrix-fibers mix design, due to the\ud market requirements, affects the mechanical properties of the hardened concrete and therefore the data obtained\ud testing the previous version of the concrete are useless. Prediction models that link the properties of bothfibers\ud and matrix to the performances of the hardened concrete are of great practical interest. This paper present a\ud simple and effective model to account for the effect offibers on the compressive and tensile strengths of HPFRCs\ud as the aspect ratio and volume offibers changes, extending the range of application of the few existing models

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Punching shear behavior of lightweight fiber reinforced concrete slabs

Cited by 38 publications

References 13 publications

Monotonic and cyclic behaviour of lightweight concrete beams with and without steel fiber reinforcement

Monotonic and cyclic behaviour of lightweight concrete beams with and without steel fiber reinforcement

Experimental Investigations on Punching Shear of Flat Slabs Made from Lightweight Aggregate Concrete

Simple and effective models to predict the compressive and tensile strength of HPFRC as the steel fiber content and type changes

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