Table 7 Efficiency of the confinement/tie stirrups ratio (ρsv)
Confinement/tie stirrups spacings, mm | Tie stirrups ratio, ρsv % | Capacity, Pu (kN) | Increasing of capacity, + Pu% | Increasing tie stirrups ratio, + ρsv % | + Pu%/ + ρsv % |
|---|---|---|---|---|---|
Ø6 @ 200 | 0.59 | 989.036 | – | – | |
Ø6 @ 150 | 0.78 | 983.13 | − 0.60 | 32.20 | − 0.019 |
Ø6 @ 100 | 1.18 | 991.545 | 0.25 | 100.00 | 0.003 |
Ø6 @ 50 | 2.36 | 1006.42 | 1.76 | 300.00 | 0.006 |