Hysteretic Behavior of H-Shaped Honeycombed Steel Web Composite Columns with Rectangular Concrete-Filled Steel Tube Flanges
Table 4
Ductility coefficients of STHCC specimens.
Specimens
λs
n
α
fck (MPa)
fyfk (MPa)
D/B
Py (kN)
Pu (kN)
Δy (mm)
Δm (mm)
Δu (mm)
μ
STHCC1
2.08
0.4
0.044
40
235
2.08
1270.00
1079.50
4.33
12.60
29.40
6.78
STHCC2
2.45
0.4
0.044
40
235
2.08
1050.00
892.50
7.50
19.80
46.20
6.16
STHCC3
2.64
0.4
0.044
40
235
2.08
987.33
839.23
8.67
19.20
52.80
6.09
STHCC4
3.33
0.4
0.044
40
235
2.08
800.51
680.43
12.00
19.80
39.60
3.30
STHCC5
3.33
0.1
0.044
40
235
2.08
857.98
729.29
12.17
24.00
40.30
3.31
STHCC6
3.33
0.2
0.044
40
235
2.08
841.51
715.28
12.33
24.00
44.50
3.61
STHCC7
3.33
0.3
0.044
40
235
2.08
826.24
702.30
7.83
21.60
52.50
6.70
STHCC8
3.33
0.4
0.044
30
235
2.08
753.01
640.06
10.50
16.80
54.60
5.20
STHCC9
3.33
0.4
0.044
50
235
2.08
819.27
696.38
10.67
21.60
34.50
3.23
STHCC10
3.33
0.4
0.044
60
235
2.08
897.57
762.93
13.00
25.20
33.60
2.58
STHCC11
3.33
0.4
0.021
40
235
2.08
615.00
522.75
12.50
16.80
29.40
2.35
STHCC12
3.33
0.4
0.032
40
235
2.08
706.41
600.45
10.67
16.00
25.60
2.40
STHCC13
3.33
0.4
0.056
40
235
2.08
908.70
772.40
10.50
20.00
55.00
5.24
STHCC14
3.33
0.4
0.044
40
345
2.08
1022.73
869.32
15.17
27.00
64.80
4.27
STHCC15
3.33
0.4
0.044
40
390
2.08
1130.00
960.50
13.33
24.00
70.00
5.25
STHCC16
3.33
0.4
0.044
40
420
2.08
1200.00
1020.00
13.33
36.00
72.00
5.40
STHCC17
3.33
0.4
0.042
40
235
1.89
900.13
765.11
20.00
40.00
110.00
5.50
STHCC18
3.33
0.4
0.041
40
235
1.73
961.00
816.85
17.67
33.60
57.20
3.24
STHCC19
3.33
0.4
0.040
40
235
1.60
776.16
659.74
20.33
28.80
64.80
3.19
STHCC20
3.33
0.4
0.048
40
235
1.92
1030.00
875.50
25.63
18.00
68.43
2.67
STHCC21
3.33
0.4
0.031
40
235
2.40
1230.03
1045.53
14.00
24.00
45.00
3.21
STHCC22
3.33
0.4
0.034
40
235
2.72
714.09
606.97
9.00
21.00
40.00
4.44
Note. Py denotes the yield load, Δy is the yield displacement corresponding to Py, Δm denotes the peak displacement, Pu is the ultimate load, and Δu refers to the ultimate displacement corresponding to Pu.
