Experimental analysis of eccentrically loaded reinforced concrete columns with an added jacket of self compacting concrete

  • Jeovan Pereira das Virgens UFG
  • Ronaldo Barros Gomes UFG
  • Leandro Mouta Trautwein UNICAMP
  • Gilson Natal Guimarães UFG
  • Ana Paula Rodrigues Vaz Saneago

Abstract

This paper presents the experimental study of eccentrically loaded reinforced concrete columns with an added 35 mm self-compacting concrete jacket attached to the column’s most compressed face using wedge bolts. Nine columns with a 2000 mm height were tested under compression and one-way bending until failure. Columns were denominated as original column (PO) with a cross section of 120 mm x 250 mm; reference column (PR) with a cross section of 155 mm x 250 mm, and seven columns with an initial cross section of 120 mm x 250 mm and later reinforced by the addition of 35 mm self-compacting concrete layer and various configurations of wedge bolts. Except for the original column PO, the columns were submitted to a 42.5 mm load eccentricity due to the added concrete layer at the compressed face. Although failure of the wedge bolts did not occur, it was not possible to prevent detachment of the added layer. The results indicate that it is possible to structurally rehabilitate reinforce concrete columns with the use of the strengthening methodology used in this research, resulting in average ultimate load capacity gains of 271 % compared to original column’s ultimate load.
Published
Feb 22, 2019
How to Cite
VIRGENS, Jeovan Pereira das et al. Experimental analysis of eccentrically loaded reinforced concrete columns with an added jacket of self compacting concrete. RIEM - IBRACON Structures and Materials Journal, [S.l.], v. 12, n. 2, feb. 2019. ISSN 1983-4195. Available at: <http://revistas.ibracon.org.br/index.php/riem/article/view/1217>. Date accessed: 20 june 2019.
Section
Artigos