The reduction in the useful service-life of reinforced concrete structures, mainly due to reinforcement corrosion, is a cause of concern for several RC buildings. The corrosion damage, often, makes necessary to define strengthening techniques allowing for recovering the initial capacity of the structure. Furthermore, the reduction of strength and ductility, due to corrosion, can jeopardize the behaviour for horizontal loads. In this research, the technique based on the use of High Performance Fiber Reinforced Concrete (HPFRC) jackets with thickness of 30-40 mm, is considered and applied on RC corroded columns. Three full-scale experimental cyclic tests were performed. Besides the reference specimen (UC), one column was tested after the rebars artificial corrosion (c), and the last one, after the reinforcement corrosion, was strengthening with 40 mm thick HPFRC jacket (CR). The tests were performed up to failure by applying cyclic horizontal loads of increasing amplitude for verifying the performances of the proposed solution.

(2016). Cyclic behaviour of R.C. column with corroded reinforcement repaired with HPFRC jacket . Retrieved from http://hdl.handle.net/10446/85699

Cyclic behaviour of R.C. column with corroded reinforcement repaired with HPFRC jacket

Mostosi, Serena;Riva, Paolo
2016-01-01

Abstract

The reduction in the useful service-life of reinforced concrete structures, mainly due to reinforcement corrosion, is a cause of concern for several RC buildings. The corrosion damage, often, makes necessary to define strengthening techniques allowing for recovering the initial capacity of the structure. Furthermore, the reduction of strength and ductility, due to corrosion, can jeopardize the behaviour for horizontal loads. In this research, the technique based on the use of High Performance Fiber Reinforced Concrete (HPFRC) jackets with thickness of 30-40 mm, is considered and applied on RC corroded columns. Three full-scale experimental cyclic tests were performed. Besides the reference specimen (UC), one column was tested after the rebars artificial corrosion (c), and the last one, after the reinforcement corrosion, was strengthening with 40 mm thick HPFRC jacket (CR). The tests were performed up to failure by applying cyclic horizontal loads of increasing amplitude for verifying the performances of the proposed solution.
2016
Mostosi, Serena; Meda, Alice; Rinaldi, Zila; Riva, Paolo
File allegato/i alla scheda:
File Dimensione del file Formato  
159-Cyclic.pdf

Solo gestori di archivio

Versione: publisher's version - versione editoriale
Licenza: Licenza default Aisberg
Dimensione del file 613.99 kB
Formato Adobe PDF
613.99 kB Adobe PDF   Visualizza/Apri
Pubblicazioni consigliate

Aisberg ©2008 Servizi bibliotecari, Università degli studi di Bergamo | Terms of use/Condizioni di utilizzo

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/85699
Citazioni
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact