Plate with holes as shear connector in cold formed steel composite beams

Abstract In search of an improved compatibility between cold-formed steel profiles and precast floor systems, this study proposes an alternative shear connector for cold-formed steel-concrete composite beams. This connector consists of a steel plate with holes placed longitudinally in the middle of...

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Main Authors: O. P. AGUIAR, R. B. CALDAS, F. C. RODRIGUES, H. N .BELLEI
Format: Article
Language:English
Published: Instituto Brasileiro do Concreto (IBRACON) 2019-07-01
Series:Revista IBRACON de Estruturas e Materiais
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000300509&tlng=en
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author O. P. AGUIAR
R. B. CALDAS
F. C. RODRIGUES
H. N .BELLEI
author_facet O. P. AGUIAR
R. B. CALDAS
F. C. RODRIGUES
H. N .BELLEI
author_sort O. P. AGUIAR
collection DOAJ
description Abstract In search of an improved compatibility between cold-formed steel profiles and precast floor systems, this study proposes an alternative shear connector for cold-formed steel-concrete composite beams. This connector consists of a steel plate with holes placed longitudinally in the middle of the upper flange of the steel profile, aiming to maximize the support area for precast slabs during the assembly. The proposed solution was experimentally tested on I-beams under bending, composed by two cold-formed steel channels, connected to a reinforced concrete slab by the shear connector. The relative slip between the steel profile and concrete, vertical deflection of the beam, and strains at several locations of the composite section were measured. The results show that the proposed connector assures shear transfer at the interface of the composite section components and shows strength of the same magnitude as other commonly used connectors.
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spelling doaj.art-c30c2b3f8c4143dfa4c0eae5bb33ca4d2022-12-22T04:16:27ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-41952019-07-0112350951710.1590/s1983-41952019000300005Plate with holes as shear connector in cold formed steel composite beamsO. P. AGUIARhttps://orcid.org/0000-0003-2640-2262R. B. CALDAShttps://orcid.org/0000-0002-0851-7632F. C. RODRIGUEShttps://orcid.org/0000-0002-1454-6341H. N .BELLEIhttps://orcid.org/0000-0002-3251-7675Abstract In search of an improved compatibility between cold-formed steel profiles and precast floor systems, this study proposes an alternative shear connector for cold-formed steel-concrete composite beams. This connector consists of a steel plate with holes placed longitudinally in the middle of the upper flange of the steel profile, aiming to maximize the support area for precast slabs during the assembly. The proposed solution was experimentally tested on I-beams under bending, composed by two cold-formed steel channels, connected to a reinforced concrete slab by the shear connector. The relative slip between the steel profile and concrete, vertical deflection of the beam, and strains at several locations of the composite section were measured. The results show that the proposed connector assures shear transfer at the interface of the composite section components and shows strength of the same magnitude as other commonly used connectors.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000300509&tlng=encomposite beamcold-formed steel profilesshear connectorperfobond
spellingShingle O. P. AGUIAR
R. B. CALDAS
F. C. RODRIGUES
H. N .BELLEI
Plate with holes as shear connector in cold formed steel composite beams
Revista IBRACON de Estruturas e Materiais
composite beam
cold-formed steel profiles
shear connector
perfobond
title Plate with holes as shear connector in cold formed steel composite beams
title_full Plate with holes as shear connector in cold formed steel composite beams
title_fullStr Plate with holes as shear connector in cold formed steel composite beams
title_full_unstemmed Plate with holes as shear connector in cold formed steel composite beams
title_short Plate with holes as shear connector in cold formed steel composite beams
title_sort plate with holes as shear connector in cold formed steel composite beams
topic composite beam
cold-formed steel profiles
shear connector
perfobond
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000300509&tlng=en
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AT hnbellei platewithholesasshearconnectorincoldformedsteelcompositebeams