TY - GEN
T1 - FRP confinement of high-aspect ratio concrete columns
AU - Kolyvas, C. S.
AU - Triantafillou, T. C.
AU - Bernakos, A. I.
N1 - Publisher Copyright:
© 2016 Taylor & Francis Group, London.
PY - 2016
Y1 - 2016
N2 - An important limitation in the majority of the globally available guidelines, with regard to concrete strengthening, is the confinement of vertical members of high-aspect ratio cross-sections by means of externally applied FRP. For that matter, the paper investigates FRP confinement of wall-like reinforced concrete columns, by examining a number of parameters, namely the effectiveness of different types of carbon FRP anchors, the role of different cross-section aspect-ratios (3 and 4), the number of externally applied FRP layers, local strengthening at the corners and the reduction of aspect-ratio by cross-section enlargement. It is concluded that properly dimensioned anchoring system, nearly doubles the confining effectiveness of FRP. Moreover, the use of additional FRP layers near the edges of the cross-section increases the confining effectiveness of the jacket by approximately 50%, and shape enlargement of the cross section with mortar is practically as effective as the use of FRP anchors.
AB - An important limitation in the majority of the globally available guidelines, with regard to concrete strengthening, is the confinement of vertical members of high-aspect ratio cross-sections by means of externally applied FRP. For that matter, the paper investigates FRP confinement of wall-like reinforced concrete columns, by examining a number of parameters, namely the effectiveness of different types of carbon FRP anchors, the role of different cross-section aspect-ratios (3 and 4), the number of externally applied FRP layers, local strengthening at the corners and the reduction of aspect-ratio by cross-section enlargement. It is concluded that properly dimensioned anchoring system, nearly doubles the confining effectiveness of FRP. Moreover, the use of additional FRP layers near the edges of the cross-section increases the confining effectiveness of the jacket by approximately 50%, and shape enlargement of the cross section with mortar is practically as effective as the use of FRP anchors.
KW - Concrete
KW - Confinement
KW - FRP anchors
KW - Fibre-reinforced polymers
KW - High-aspect ratio columns
KW - Shape enlargement
UR - http://www.scopus.com/inward/record.url?scp=85015091022&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85015091022&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85015091022
SN - 9781138030084
T3 - Concrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016
SP - 525
EP - 530
BT - Concrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016
A2 - Sideris, Kosmas
A2 - Papayianni, Ioanna
A2 - Grantham, Michael G.
PB - CRC Press/Balkema
T2 - 6th International Conference on Concrete Repair, 2016
Y2 - 20 June 2016 through 23 June 2016
ER -