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Interface Capacity of Repaired Concrete Columns Strengthened with RC Jackets

Achillopoulou Dimitra / Pardalakis Theodoros / Karabinis Athanasios

The study describes the retrofit of repaired elements by reinforced concrete (RC) jacketing conducted to quantify the influence of initial construction deficiencies and of different type of anchors to the ability of the interface to transfer loads. Sixteen specimens (section scale 1:2) were designed with variables the initial deficiencies and the confinement ratio. The results indicate that: a) the maximum resistance load and dissipated energy of initially damaged specimens are decreased; b) surpassing a specific amount of damage, columns even suitably repaired present lower strain capacity, c) welded bars lead to buckling of longitudinal bars.

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Interface Capacity of Repaired Concrete Columns Strengthened with RC Jackets

Achillopoulou Dimitra / Pardalakis Theodoros / Karabinis Athanasios

The study describes the retrofit of repaired elements by reinforced concrete (RC) jacketing conducted to quantify the influence of initial construction deficiencies and of different type of anchors to the ability of the interface to transfer loads. Sixteen specimens (section scale 1:2) were designed with variables the initial deficiencies and the confinement ratio. The results indicate that: a) the maximum resistance load and dissipated energy of initially damaged specimens are decreased; b) surpassing a specific amount of damage, columns even suitably repaired present lower strain capacity, c) welded bars lead to buckling of longitudinal bars.

Interface Capacity of Repaired Concrete Columns Strengthened with RC Jackets

Achillopoulou Dimitra / Pardalakis Theodoros / Karabinis Athanasios

The study describes the retrofit of repaired elements by reinforced concrete (RC) jacketing conducted to quantify the influence of initial construction deficiencies and of different type of anchors to the ability of the interface to transfer loads. Sixteen specimens (section scale 1:2) were designed with variables the initial deficiencies and the confinement ratio. The results indicate that: a) the maximum resistance load and dissipated energy of initially damaged specimens are decreased; b) surpassing a specific amount of damage, columns even suitably repaired present lower strain capacity, c) welded bars lead to buckling of longitudinal bars.

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Title:

Interface Capacity of Repaired Concrete Columns Strengthened with RC Jackets

Contributors:

Achillopoulou Dimitra (author) / Pardalakis Theodoros (author) / Karabinis Athanasios (author)

Published in:

Transactions of the VŠB: Technical University of Ostrava, Civil Engineering Series, Vol 14, Iss 2, Pp 129-145 (2014)

Publication date:

2014

ISSN:

DOI:

https://doi.org/10.2478/tvsb-2014-0014

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

Concrete jacket , construction damage , repair and strengthening , dowels , welded bend down bars , Engineering (General). Civil engineering (General) , TA1-2040

Metadata by DOAJ is licensed under CC BY-SA 1.0

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