Strength of short concrete columns confined with CFRP sheets

Title: Strength of short concrete columns confined with CFRP sheets
Author(s): I. A. E. M Shehata, L. A. V. Carneiro, L. C. D. Shehata
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 35
Issue: 245
Issue date: 2002-01-01
Publication year: 2002
Pages: 50 - 58
Total Pages: 9
Nb references: 17
Language: English

Abstract: The confinement of concrete columns provided by carbon fibre reinforced plastic (CFRP)sheets can be an efficient technique for their structural strengthening.
The principal advantages of this technique are the high strength-to-weight ratio,good fatigue properties,noncorroding characteristics of the CFRP,and the facility of its application.
An experimental research program,that included tests on 54 short column specimens,was carried out to investigate the gain in strength and ductility of concrete columns externally confined by CFRP wrapping.
The variables studied were the column cross section shape (circular, square and rectangular)and the amount of confinement expressed in the number of CFRP sheet layers applied to the models (one or two layers).
On the basis of the obtained results,equations were proposed to calculate the confined concrete strength and the ultimate confined concrete strain as a function of the confining lateral stress for each of the cross section geometry used,circular,square and rectangular.
The estimations given by these equations and by those from formulas encountered in the literature were compared with the experimental ones and general conclusions were,finally,drawn.

Online publication: 2001-11-27
Classification: Technical Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/13686