Table 7. Comparison of compressive performance of specimens under different parameters.
| Specimens | Parameters | |||||
|---|---|---|---|---|---|---|
|
l (mm) |
d (mm) |
Concrete strength (MPa) | Initial stiffness (kN/mm) |
Yield load (kN) |
Peak load (kN) |
|
| PSC-SC | 160 | 16 | 25 | 3740 | 6853 | 7470 |
| 200 | 16 | 25 | 3722 | 6711 | 6980 | |
| 240 | 16 | 25 | 3694 | 6700 | 6902 | |
| 240 | 10 | 25 | 3688 | 3529 | 4510 | |
| 240 | 20 | 25 | 3708 | 6689 | 7550 | |
| PSC-CFC | *240 | *16 | *25 | *4907 | *7722 | *9765 |
| 240 | 16 | 30 | 4979 | 13526 | 47800 | |
| 240 | 16 | 40 | 5016 | 13746 | 49600 | |
| 240 | 16 | 50 | 5021 | 13671 | 51400 | |
Note: For PSC-CFC, the “*” indicates that the final failure mode is the crushing of the prefabricated concrete block, while the absence of the “*” denotes failure occurring at the joint.