Compressive response of substandard steel-jacketed RC columns strengthened under sustained service loads: From the local to the global behavior

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Abstract

This paper presents an experimental investigation on substandard partially steel jacketed RC columns strengthened under sustained loads and loaded until failure. The aim of the study is to compare the compressive response of preloaded columns with respect to the tests without preload to obtain a more realistic prediction of load-carrying capacity of structural columns after retrofitting under serviceability loads. The influence of the preload level, the delayed contribution of the confining device during the loading process and the time dependent effects are highlighted for the tested specimens. Based on the experimental observations, an analysis-oriented model is proposed for the reproduction of the compressive response of steel jacketed columns taking into account the effects of the preload.
Lingua originaleEnglish
pagine (da-a)500-511
Numero di pagine12
RivistaConstruction and Building Materials
Volume179
Stato di pubblicazionePublished - 2018

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Steel
Retrofitting
Load limits

All Science Journal Classification (ASJC) codes

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

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title = "Compressive response of substandard steel-jacketed RC columns strengthened under sustained service loads: From the local to the global behavior",
abstract = "This paper presents an experimental investigation on substandard partially steel jacketed RC columns strengthened under sustained loads and loaded until failure. The aim of the study is to compare the compressive response of preloaded columns with respect to the tests without preload to obtain a more realistic prediction of load-carrying capacity of structural columns after retrofitting under serviceability loads. The influence of the preload level, the delayed contribution of the confining device during the loading process and the time dependent effects are highlighted for the tested specimens. Based on the experimental observations, an analysis-oriented model is proposed for the reproduction of the compressive response of steel jacketed columns taking into account the effects of the preload.",
author = "Maurizio Papia and Ferrotto, {Marco Filippo} and Liborio Cavaleri",
year = "2018",
language = "English",
volume = "179",
pages = "500--511",
journal = "Construction and Building Materials",
issn = "0950-0618",
publisher = "Elsevier Limited",

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T1 - Compressive response of substandard steel-jacketed RC columns strengthened under sustained service loads: From the local to the global behavior

AU - Papia, Maurizio

AU - Ferrotto, Marco Filippo

AU - Cavaleri, Liborio

PY - 2018

Y1 - 2018

N2 - This paper presents an experimental investigation on substandard partially steel jacketed RC columns strengthened under sustained loads and loaded until failure. The aim of the study is to compare the compressive response of preloaded columns with respect to the tests without preload to obtain a more realistic prediction of load-carrying capacity of structural columns after retrofitting under serviceability loads. The influence of the preload level, the delayed contribution of the confining device during the loading process and the time dependent effects are highlighted for the tested specimens. Based on the experimental observations, an analysis-oriented model is proposed for the reproduction of the compressive response of steel jacketed columns taking into account the effects of the preload.

AB - This paper presents an experimental investigation on substandard partially steel jacketed RC columns strengthened under sustained loads and loaded until failure. The aim of the study is to compare the compressive response of preloaded columns with respect to the tests without preload to obtain a more realistic prediction of load-carrying capacity of structural columns after retrofitting under serviceability loads. The influence of the preload level, the delayed contribution of the confining device during the loading process and the time dependent effects are highlighted for the tested specimens. Based on the experimental observations, an analysis-oriented model is proposed for the reproduction of the compressive response of steel jacketed columns taking into account the effects of the preload.

UR - http://hdl.handle.net/10447/338167

M3 - Article

VL - 179

SP - 500

EP - 511

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

ER -