Detail publikace

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.

Originální název

Shear transfer behavior in composite slabs under 4-point standard and uniform-load tests

Anglický název

Shear transfer behavior in composite slabs under 4-point standard and uniform-load tests

Jazyk

en

Originální abstrakt

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.

Anglický abstrakt

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.

Dokumenty

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"
}