Compressive behavior of concrete externally confined by composite jackets. Part A: experimental study

Compressive behavior of concrete-filled FRP tube columns: Assessment of critical column parameters

“…The comparison of the curves shown in Fig.13(a) with those shown in Fig.12(b) and 5 Fig.13(b), respectively, illustrate the well-understood influence of the sectional aspect ratio and 6 corner radius on the compressive behavior of square and rectangular CFFTs. As has been 7 reported previously for both FRP-wrapped concrete specimens [30-33] and CFFTs [6,14] the 8 confinement effectiveness of FRP jackets/tubes increases with an increase in corner radius and 9 decreases with an increase in sectional aspect ratio over unity. These influences are directly 10 evident from the above comparisons.…”

“…One such application, the 6 concrete-filled FRP tube (CFFT), have received much attention and significant amount of 7 research has been undertaken to investigate several aspects of structural performance of this 8 composite system (e.g. [2][3][4][5][6][7]). Existing studies have demonstrated the ability of CFFTs to 9 develop very high inelastic deformation capacities [4,5,[8][9][10][11]] making them an attractive 10 alternative for the construction of earthquake-resistant high-performance columns.…”

“…This requires a comprehensive investigation on the behavior of CFFTs under concentric 18 compression. Although a number of such studies have been reported in the literature (e.g., [6,[12][13][14][15][16][17][18][19] 14]), several aspects of CFFTs remain poorly understood and require more study. These include 20 (i) high-strength concrete-filled FRP tubes (HSCFFTs), (ii) size effects on CFFTs, (iii) effects 21 of FRP tube material and manufacture method, and (iv) confinement effectiveness of square 22 and rectangular CFFTs.…”

Use of CFRP in Confining High Strength Concrete Columns Subject to Axial Loading

“…Several studies on the performance of FRP wrapped columns have been conducted, using both experimental and analytical approaches [1][2][3][4][5][6]. This strengthening technique has proved to be very effective in enhancing column ductility and axial load capacity.…”

Performance of externally CFRP confined RC columns with changes in thickness of the wrap, slenderness of the column and shape of the section

“…Several studies on the performance of FRP wrapped columns have been conducted, using both experimental and analytical approaches [1](H. Saadatmanesh et al, 1994); [2](A. Nanni and N.M. Bradford, 1995); [3](V.M. Karbhari and Y. Gao, 1997); [4](A. Miraman et al, 1998); [5](G. Campione and N. Miraglia, 2004); [6](J. Berthet et al, 2005).…”