Analytical prediction of the shear connection capacity in composite steel–concrete trussed beams

Alessia Monaco, Lidia La Mendola, Piero Colajanni, Massimo Latour, Gianvittorio Rizzano

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9 Citazioni (Scopus)

Abstract

Steel–concrete trussed composite beams are a particular types of composite girders constituted by a steel truss embedded in a concrete core. The truss is typically composed by a steel plate or a precast concrete slab working as bottom chord while coupled rebars are generally used to form the upper chord. Moreover, a system of ribbed or smooth steel rebars welded to the plate and forming the diagonals of the truss, works as web reinforcement. In the present study, the attention is focused on the evaluation of the shear resistance of the connection between bottom steel plate (the bottom chord) and concrete core through the diagonal bars of the truss developing a mechanical model able to account for the particular issues arising in this beam typology. In particular, the proposed formulation is based on the extension of existing formulations for the prediction of the resistance of steel dowels to the case of inclined steel bars loaded against concrete, accounting for the following effects: lateral and top confinement, mechanical non-linearity of materials, length of the plastic hinge arising in the steel bar and influence of moment-shear-axial force interaction effect. The accuracy of the model is verified with the available experimental data collected from the technical literature and with FE results obtained from a parametric analysis carried out by the same authors in a previous work.
Lingua originaleEnglish
pagine (da-a)1-18
Numero di pagine18
RivistaMATERIALS AND STRUCTURES
Volume50
Stato di pubblicazionePublished - 2017

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Steel
Composite materials
Concretes
Precast concrete
Concrete slabs
Beams and girders
Hinges
Reinforcement
Plastics

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)
  • Mechanics of Materials

Cita questo

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title = "Analytical prediction of the shear connection capacity in composite steel–concrete trussed beams",
abstract = "Steel–concrete trussed composite beams are a particular types of composite girders constituted by a steel truss embedded in a concrete core. The truss is typically composed by a steel plate or a precast concrete slab working as bottom chord while coupled rebars are generally used to form the upper chord. Moreover, a system of ribbed or smooth steel rebars welded to the plate and forming the diagonals of the truss, works as web reinforcement. In the present study, the attention is focused on the evaluation of the shear resistance of the connection between bottom steel plate (the bottom chord) and concrete core through the diagonal bars of the truss developing a mechanical model able to account for the particular issues arising in this beam typology. In particular, the proposed formulation is based on the extension of existing formulations for the prediction of the resistance of steel dowels to the case of inclined steel bars loaded against concrete, accounting for the following effects: lateral and top confinement, mechanical non-linearity of materials, length of the plastic hinge arising in the steel bar and influence of moment-shear-axial force interaction effect. The accuracy of the model is verified with the available experimental data collected from the technical literature and with FE results obtained from a parametric analysis carried out by the same authors in a previous work.",
author = "Alessia Monaco and {La Mendola}, Lidia and Piero Colajanni and Massimo Latour and Gianvittorio Rizzano",
year = "2017",
language = "English",
volume = "50",
pages = "1--18",
journal = "Materials and Structures/Materiaux et Constructions",
issn = "1359-5997",
publisher = "Springer Netherlands",

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TY - JOUR

T1 - Analytical prediction of the shear connection capacity in composite steel–concrete trussed beams

AU - Monaco, Alessia

AU - La Mendola, Lidia

AU - Colajanni, Piero

AU - Latour, Massimo

AU - Rizzano, Gianvittorio

PY - 2017

Y1 - 2017

N2 - Steel–concrete trussed composite beams are a particular types of composite girders constituted by a steel truss embedded in a concrete core. The truss is typically composed by a steel plate or a precast concrete slab working as bottom chord while coupled rebars are generally used to form the upper chord. Moreover, a system of ribbed or smooth steel rebars welded to the plate and forming the diagonals of the truss, works as web reinforcement. In the present study, the attention is focused on the evaluation of the shear resistance of the connection between bottom steel plate (the bottom chord) and concrete core through the diagonal bars of the truss developing a mechanical model able to account for the particular issues arising in this beam typology. In particular, the proposed formulation is based on the extension of existing formulations for the prediction of the resistance of steel dowels to the case of inclined steel bars loaded against concrete, accounting for the following effects: lateral and top confinement, mechanical non-linearity of materials, length of the plastic hinge arising in the steel bar and influence of moment-shear-axial force interaction effect. The accuracy of the model is verified with the available experimental data collected from the technical literature and with FE results obtained from a parametric analysis carried out by the same authors in a previous work.

AB - Steel–concrete trussed composite beams are a particular types of composite girders constituted by a steel truss embedded in a concrete core. The truss is typically composed by a steel plate or a precast concrete slab working as bottom chord while coupled rebars are generally used to form the upper chord. Moreover, a system of ribbed or smooth steel rebars welded to the plate and forming the diagonals of the truss, works as web reinforcement. In the present study, the attention is focused on the evaluation of the shear resistance of the connection between bottom steel plate (the bottom chord) and concrete core through the diagonal bars of the truss developing a mechanical model able to account for the particular issues arising in this beam typology. In particular, the proposed formulation is based on the extension of existing formulations for the prediction of the resistance of steel dowels to the case of inclined steel bars loaded against concrete, accounting for the following effects: lateral and top confinement, mechanical non-linearity of materials, length of the plastic hinge arising in the steel bar and influence of moment-shear-axial force interaction effect. The accuracy of the model is verified with the available experimental data collected from the technical literature and with FE results obtained from a parametric analysis carried out by the same authors in a previous work.

UR - http://hdl.handle.net/10447/193155

M3 - Article

VL - 50

SP - 1

EP - 18

JO - Materials and Structures/Materiaux et Constructions

JF - Materials and Structures/Materiaux et Constructions

SN - 1359-5997

ER -