Behaviour of Eccentric Concrete Columns Reinforced with Carbon Fibre-Reinforced Polymer Bars
Table 3
Experimental test results and effect of test parameters on the column axial capacity.
No.
G.
Specimen
e/h
ρ (%)
Pmax (kN)
Δmax (mm)
Mmax (kN·m)
% Change (increase or decrease) in column axial capacity
Due to eccentricity
Relative to conventional steel bars
Due to increase in ρ
Due to decrease tie spacing
1
1
S12-T90-E0.0
0.0
2.0
916
1.55
1.42
0.0
0.0
—
—
2
S12-T90-E0.5
0.5
297
13.81
26.38
−67.6
0.0
—
—
3
S12-T90-E1.0
1.0
130
19.00
21.97
−85.8
0.0
—
—
4
2
C10-T90-E0.0
0.0
1.4
855
3.47
2.97
0.0
—
0.0
—
5
C10-T90-E0.5
0.5
258
17.96
23.98
−69.8
—
0.0
—
6
C10-T90-E1.0
1.0
119
23.68
20.67
−86.1
—
0.0
—
7
3
C12-T90-E0.0
0.0
2.0
909
3.54
3.22
0.0
−0.8
6.3
1.1
8
C12-T90-E0.5
0.5
262
18.00
24.37
−71.2
−11.8
1.6
−0.8
9
C12-T90-E1.0
1.0
126
18.09
21.18
−86.1
−3.1
5.9
−2.3
10
4
C16-T90-E0.0
0.0
3.6
960
0.80
0.77
0.0
—
12.3
—
11
C16-T90-E0.5
0.5
290
18.34
27.11
−69.8
—
12.6
—
12
C16-T90-E1.0
1.0
137
20.62
23.37
−85.7
—
15.1
—
13
5
C12-T140-E0.0
0.0
2.0
899
1.30
1.17
0.0
—
—
0.0
14
C12-T140-E0.5
0.5
264
13.98
23.49
−70.6
—
—
0.0
15
C12-T140-E1.0
1.0
129
19.17
21.82
−85.7
—
—
0.0
16
6
C12-T40-E0.0
0.0
2.0
925
1.19
1.10
0.0
—
—
2.9
17
C12-T40-E0.5
0.5
237.7
17.23
21.92
−74.3
—
—
−10.0
18
C12-T40-E1.0
1.0
113
19.01
19.10
−87.8
—
—
−12.4
The negative sign in front of the numbers represent the reduction in strength of the specimen relative to the column that is considered reference for the respective specimens.
