Table 1 Test columns details.
From: Flexural Behavior of Circular Hollow RC Piers with Reduced Amounts of Inner Hoops
Column | Inner-to-outer reinforcement ratio | Longitudinal reinforcement | Transverse reinforcement | Axial load ratio | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Num. & dl (mm) | ρl (%) | dt (mm) | ρs (%) | |||||||
Outer | Inner | Gross | Net | Outer | Inner | Gross | Net | Gross | ||
S3 | 5:5 | 18–18 | 18–18 | 1.17 | 1.82 | 10 | 10 | 0.63 | 0.98 | 0.06 |
S4 | 4:9 | 18–18 | 18–18 | 1.17 | 1.82 | 12 | 8 | 0.63 | 0.97 | |