Seismic Behavior of Short Concrete Columns with Prestressing Steel Wires
Table 2
Test results of key points in - curves.
Specimen number
Load (kN)
Displacement (mm)
ductility
Failure mode
Increase (%)
PZ1
337.1
368.0
312.8
6.07
20.4
3.36
—
Shear
PZ2
359.7
405.0
344.3
8.09
39.9
4.93
33.6
Bending shear
PZ3
376.7
419.3
356.4
7.02
41.14
5.86
74.4
Bending
PZ4
382.5
431.1
366.4
5.15
32.20
6.25
86.0
Bending
PZ5
389.0
419.8
356.8
7.52
48.46
6.44
91.7
Bending
PZ6
367.0
381.4
324.2
6.74
37.56
5.57
65.6
Bending
PZ7
385.0
408.5
347.2
7.33
37.09
5.06
50.6
Bending shear
PZ8
397.9
451.2
383.5
6.75
25.60
3.71
10.4
Bending shear
Note: due to equipment failure during the loading process of specimen PZ5, resulting in larger axial pressure fluctuations, the measured horizontal load is small.
