Publication detail
Shear transfer behavior in composite slabs under 4-point standard and uniform-load tests
SOLTANALIPOUR, M. FERRER, M. MARIMON CARJAVAL, F. HOLOMEK, J. BAJER, M. MELCHER, J. KARMAZÍNOVÁ, M.
Original Title
Shear transfer behavior in composite slabs under 4-point standard and uniform-load tests
English Title
Shear transfer behavior in composite slabs under 4-point standard and uniform-load tests
Type
journal article in Web of Science
Language
en
Original Abstract
The 4-point bending test, prescribed by most standards, is the conventional test used to determine the shear resistance of steel-concrete composite slabs, whereas loading requirements are commonly specified in terms of uniform load in standard codes. This article shows a comparison between the results of these two load arrangements. This comparison has been made through both experimental tests and FEM simulations points of view. Both approaches show that the 4-point load arrangement provides higher shear strength than uniform load. The cause of this difference has been studied by means of a realistic FEM approach focusing on the slip mechanics and the 3D contact forces in the steel-concrete interface: longitudinal (shear), transversal (interlocking) and vertical (clamping). It has been concluded that the distribution of contact forces is different from the one load arrangement to the other, mainly because of differences in the distribution of concrete cracks. This article is the result of cooperation between UPCBarcelonaTech, where the 4-point bending tests and the FEM models were developed, and AdMaS-BUT where the uniform load tests were carried out by means of a vacuum system. The slabs were made with conventional open-rib trapezoidal profile and the Eurocode-4 provisions have been followed in both testing procedures.
English abstract
The 4-point bending test, prescribed by most standards, is the conventional test used to determine the shear resistance of steel-concrete composite slabs, whereas loading requirements are commonly specified in terms of uniform load in standard codes. This article shows a comparison between the results of these two load arrangements. This comparison has been made through both experimental tests and FEM simulations points of view. Both approaches show that the 4-point load arrangement provides higher shear strength than uniform load. The cause of this difference has been studied by means of a realistic FEM approach focusing on the slip mechanics and the 3D contact forces in the steel-concrete interface: longitudinal (shear), transversal (interlocking) and vertical (clamping). It has been concluded that the distribution of contact forces is different from the one load arrangement to the other, mainly because of differences in the distribution of concrete cracks. This article is the result of cooperation between UPCBarcelonaTech, where the 4-point bending tests and the FEM models were developed, and AdMaS-BUT where the uniform load tests were carried out by means of a vacuum system. The slabs were made with conventional open-rib trapezoidal profile and the Eurocode-4 provisions have been followed in both testing procedures.
Keywords
Composite slabs Uniformly distributed loading m-k 4-point bending Shear transfer Clamping
Released
23.10.2019
Publisher
Journal of Constructional Steel Research
ISBN
0143-974X
Periodical
Journal of Constructional Steel Research
Year of study
164 (2020)
Number
105774
State
GB
Pages from
1
Pages to
15
Pages count
15
URL
Documents
BibTex
@article{BUT159544,
author="Milad {Soltanalipour} and Miquel {Ferrer} and Federico {Marimon Carjaval} and Josef {Holomek} and Miroslav {Bajer} and Jindřich {Melcher} and Marcela {Karmazínová}",
title="Shear transfer behavior in composite slabs under 4-point standard and uniform-load tests",
annote="The 4-point bending test, prescribed by most standards, is the conventional test used to determine the
shear resistance of steel-concrete composite slabs, whereas loading requirements are commonly specified in terms of uniform load in standard codes. This article shows a comparison between the results of
these two load arrangements. This comparison has been made through both experimental tests and FEM
simulations points of view. Both approaches show that the 4-point load arrangement provides higher
shear strength than uniform load. The cause of this difference has been studied by means of a realistic
FEM approach focusing on the slip mechanics and the 3D contact forces in the steel-concrete interface:
longitudinal (shear), transversal (interlocking) and vertical (clamping). It has been concluded that the
distribution of contact forces is different from the one load arrangement to the other, mainly because of
differences in the distribution of concrete cracks. This article is the result of cooperation between UPCBarcelonaTech, where the 4-point bending tests and the FEM models were developed, and AdMaS-BUT
where the uniform load tests were carried out by means of a vacuum system. The slabs were made with
conventional open-rib trapezoidal profile and the Eurocode-4 provisions have been followed in both
testing procedures.",
address="Journal of Constructional Steel Research",
chapter="159544",
doi="10.1016/j.jcsr.2019.105774",
institution="Journal of Constructional Steel Research",
number="105774",
volume="164 (2020)",
year="2019",
month="october",
pages="1--15",
publisher="Journal of Constructional Steel Research",
type="journal article in Web of Science"
}