Moment-axial force domain of corroded R.C. columns

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6 Citazioni (Scopus)

Abstract

In the present paper, a simple model to determine the moment-axial force domain of the cross-section of reinforced concrete (R.C.) columns subjected to corrosion process is presented. The model considers members with square and rectangular cross-sections and it accounts for—cover spalling; buckling of longitudinal reinforcing bars; loss of bond of bar in tension; reduction of confinement pressures (due to the reduction of the area of stirrups and cracking of concrete induced by rust formation). The analytical expressions for prediction of the area reduction of steel, bond strength and critical load of longitudinal bars utilized were verified against experimental data available in the literature. Ample verification of the analytical model proposed for prediction of moment-axial force domain was made against available experimental data given in the literature, showing good agreement. Finally, the proposed model gives simple expressions for a preliminary static check on existing cross-sections of R.C. columns subjected to corrosion processes.
Lingua originaleEnglish
Numero di pagine14
RivistaMATERIALS AND STRUCTURES
Volume50
Stato di pubblicazionePublished - 2017

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Reinforced concrete
Corrosion
Spalling
Steel
Buckling
Analytical models
Concretes

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 = "Moment-axial force domain of corroded R.C. columns",
abstract = "In the present paper, a simple model to determine the moment-axial force domain of the cross-section of reinforced concrete (R.C.) columns subjected to corrosion process is presented. The model considers members with square and rectangular cross-sections and it accounts for—cover spalling; buckling of longitudinal reinforcing bars; loss of bond of bar in tension; reduction of confinement pressures (due to the reduction of the area of stirrups and cracking of concrete induced by rust formation). The analytical expressions for prediction of the area reduction of steel, bond strength and critical load of longitudinal bars utilized were verified against experimental data available in the literature. Ample verification of the analytical model proposed for prediction of moment-axial force domain was made against available experimental data given in the literature, showing good agreement. Finally, the proposed model gives simple expressions for a preliminary static check on existing cross-sections of R.C. columns subjected to corrosion processes.",
author = "Ferrotto, {Marco Filippo} and Francesco Cannella and Liborio Cavaleri and Giuseppe Campione",
year = "2017",
language = "English",
volume = "50",
journal = "Materials and Structures/Materiaux et Constructions",
issn = "1359-5997",
publisher = "Springer Netherlands",

}

TY - JOUR

T1 - Moment-axial force domain of corroded R.C. columns

AU - Ferrotto, Marco Filippo

AU - Cannella, Francesco

AU - Cavaleri, Liborio

AU - Campione, Giuseppe

PY - 2017

Y1 - 2017

N2 - In the present paper, a simple model to determine the moment-axial force domain of the cross-section of reinforced concrete (R.C.) columns subjected to corrosion process is presented. The model considers members with square and rectangular cross-sections and it accounts for—cover spalling; buckling of longitudinal reinforcing bars; loss of bond of bar in tension; reduction of confinement pressures (due to the reduction of the area of stirrups and cracking of concrete induced by rust formation). The analytical expressions for prediction of the area reduction of steel, bond strength and critical load of longitudinal bars utilized were verified against experimental data available in the literature. Ample verification of the analytical model proposed for prediction of moment-axial force domain was made against available experimental data given in the literature, showing good agreement. Finally, the proposed model gives simple expressions for a preliminary static check on existing cross-sections of R.C. columns subjected to corrosion processes.

AB - In the present paper, a simple model to determine the moment-axial force domain of the cross-section of reinforced concrete (R.C.) columns subjected to corrosion process is presented. The model considers members with square and rectangular cross-sections and it accounts for—cover spalling; buckling of longitudinal reinforcing bars; loss of bond of bar in tension; reduction of confinement pressures (due to the reduction of the area of stirrups and cracking of concrete induced by rust formation). The analytical expressions for prediction of the area reduction of steel, bond strength and critical load of longitudinal bars utilized were verified against experimental data available in the literature. Ample verification of the analytical model proposed for prediction of moment-axial force domain was made against available experimental data given in the literature, showing good agreement. Finally, the proposed model gives simple expressions for a preliminary static check on existing cross-sections of R.C. columns subjected to corrosion processes.

UR - http://hdl.handle.net/10447/238239

M3 - Article

VL - 50

JO - Materials and Structures/Materiaux et Constructions

JF - Materials and Structures/Materiaux et Constructions

SN - 1359-5997

ER -