RC Columns Strengthened with Steel Angles and Battens: Experimental Results and Design Procedure

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Abstract

In this paper, an analytical model for the design of axially loaded strengthened RC columns with steel angles and battens is presented. Cases of directly loaded and not directly loaded steel angles are considered. The model considers the contribution in confinement pressures caused by transverse battens and steel angles and the contribution in terms of the load-carrying capacity of steel angles subjected to axial force and the bending moment. An experimental investigation on the compressive behavior of eight short, confined, RC columns externally strengthened with steel angles and steel battens with various pitches was carried out, and has been utilized as support for the analytical model. The analytical results generated are compared with the experimental data available in the literature and with those obtained by using existing analytical models. The comparison shows the acceptable prediction of the experimental results in both cases of directly loaded and not directly loaded steel angles. Finally, some design rules given by recent codes for the design of this strengthening technique are discussed using the proposed model.
Lingua originaleEnglish
pagine (da-a)1-11
Numero di pagine11
RivistaPractice Periodical on Structural Design and Construction
Volume18
Stato di pubblicazionePublished - 2011

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Steel
Analytical models
Load limits
Bending moments

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Arts and Humanities (miscellaneous)
  • Building and Construction

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title = "RC Columns Strengthened with Steel Angles and Battens: Experimental Results and Design Procedure",
abstract = "In this paper, an analytical model for the design of axially loaded strengthened RC columns with steel angles and battens is presented. Cases of directly loaded and not directly loaded steel angles are considered. The model considers the contribution in confinement pressures caused by transverse battens and steel angles and the contribution in terms of the load-carrying capacity of steel angles subjected to axial force and the bending moment. An experimental investigation on the compressive behavior of eight short, confined, RC columns externally strengthened with steel angles and steel battens with various pitches was carried out, and has been utilized as support for the analytical model. The analytical results generated are compared with the experimental data available in the literature and with those obtained by using existing analytical models. The comparison shows the acceptable prediction of the experimental results in both cases of directly loaded and not directly loaded steel angles. Finally, some design rules given by recent codes for the design of this strengthening technique are discussed using the proposed model.",
keywords = "battens; moment curvature",
author = "Giuseppe Campione",
year = "2011",
language = "English",
volume = "18",
pages = "1--11",
journal = "Practice Periodical on Structural Design and Construction",
issn = "1084-0680",
publisher = "American Society of Civil Engineers (ASCE)",

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TY - JOUR

T1 - RC Columns Strengthened with Steel Angles and Battens: Experimental Results and Design Procedure

AU - Campione, Giuseppe

PY - 2011

Y1 - 2011

N2 - In this paper, an analytical model for the design of axially loaded strengthened RC columns with steel angles and battens is presented. Cases of directly loaded and not directly loaded steel angles are considered. The model considers the contribution in confinement pressures caused by transverse battens and steel angles and the contribution in terms of the load-carrying capacity of steel angles subjected to axial force and the bending moment. An experimental investigation on the compressive behavior of eight short, confined, RC columns externally strengthened with steel angles and steel battens with various pitches was carried out, and has been utilized as support for the analytical model. The analytical results generated are compared with the experimental data available in the literature and with those obtained by using existing analytical models. The comparison shows the acceptable prediction of the experimental results in both cases of directly loaded and not directly loaded steel angles. Finally, some design rules given by recent codes for the design of this strengthening technique are discussed using the proposed model.

AB - In this paper, an analytical model for the design of axially loaded strengthened RC columns with steel angles and battens is presented. Cases of directly loaded and not directly loaded steel angles are considered. The model considers the contribution in confinement pressures caused by transverse battens and steel angles and the contribution in terms of the load-carrying capacity of steel angles subjected to axial force and the bending moment. An experimental investigation on the compressive behavior of eight short, confined, RC columns externally strengthened with steel angles and steel battens with various pitches was carried out, and has been utilized as support for the analytical model. The analytical results generated are compared with the experimental data available in the literature and with those obtained by using existing analytical models. The comparison shows the acceptable prediction of the experimental results in both cases of directly loaded and not directly loaded steel angles. Finally, some design rules given by recent codes for the design of this strengthening technique are discussed using the proposed model.

KW - battens; moment curvature

UR - http://hdl.handle.net/10447/101248

M3 - Article

VL - 18

SP - 1

EP - 11

JO - Practice Periodical on Structural Design and Construction

JF - Practice Periodical on Structural Design and Construction

SN - 1084-0680

ER -