An Experimental Investigation of Circular RC Columns with Various Slenderness Confined with CFRP Sheets

被引：16

作者：

Chikh, N. ^{[1
]}

Benzaid, R. ^{[2
]}

Mesbah, H. ^{[3
]}

机构：

[1] Constantine Univ, Dept Civil Engn, LMDC, Constantine 25000, Algeria

[2] Jijel Univ, LGG, Ouled Issa 18000, Jijel, Algeria

[3] INSA Rennes, Dept Civil Engn, DLGCGM, F-35043 Rennes, France

来源：

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING | 2012年 / 37卷 / 02期

关键词：

Axial load; CFRP; Concrete column; Confinement; Slenderness; Strain; Strength; CONCRETE COLUMNS; UNIAXIAL COMPRESSION; JACKETED CONCRETE; FRP;

D O I：

10.1007/s13369-012-0176-7

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The present paper deals with the analysis of experimental results, in terms of load carrying capacity and strains, obtained from tests on circular plain concrete and steel reinforced concrete columns, strengthened with external carbon fiber-reinforced polymer sheets. The experimental parameters include: different concrete strength, number of wrap layers and slenderness of the columns (L/). A total of 48 specimens were subjected to axial compression. All test specimens were loaded to failure in axial compression. Compressive stress, axial and hoop strains have been recorded to evaluate the stress-strain relationship, ultimate strength, stiffness, and ductility of the specimens. Results clearly demonstrate that composite wrapping can enhance the structural performance of circular RC columns in terms of both maximum strength and ductility. The effects of test parameters are evidenced and compared.

引用

页码：315 / 323

页数：9

共 7 条

[1] Compressive behavior of concrete externally confined by composite jackets. Part A: experimental study [J].

Berthet, JF ;

Ferrier, E ;

Hamelin, P .

CONSTRUCTION AND BUILDING MATERIALS, 2005, 19 (03) :223-232

[2] Composite jacketed concrete under uniaxial compression - Verification of simple design equations [J].

Karbhari, VM ;

Gao, YQ .

JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 1997, 9 (04) :185-193

[3]

Mirmiran A., 1998, J COMPOS CONSTR, V2, P175, DOI 10.1061/(ASCE)1090-0268(1998)2

[4] FRP JACKETED CONCRETE UNDER UNIAXIAL COMPRESSION [J].

NANNI, A ;

BRADFORD, NM .

CONSTRUCTION AND BUILDING MATERIALS, 1995, 9 (02) :115-124

[5] Experimental investigation of load carrying capacity of the slender reinforced concrete columns wrapped with FRP [J].

Pan, J. L. ;

Xu, T. ;

Hu, Z. J. .

CONSTRUCTION AND BUILDING MATERIALS, 2007, 21 (11) :1991-1996

[6]

SAADATMANESH H, 1994, ACI STRUCT J, V91, P434

[7] Fiber-reinforced polymer-confined circular concrete columns:: Investigation of size and slenderness effects [J].

Thériault, M ;

Neale, KW ;

Claude, S .

JOURNAL OF COMPOSITES FOR CONSTRUCTION, 2004, 8 (04) :323-331

← 1 →