Table 2 Properties of test specimen.
From: Seismic Performance Assessment of Hollow Reinforced Concrete and Prestressed Concrete Bridge Columns
Specimen | Prototype | Model |
|---|---|---|
Diameter of cross section (mm) | 2200 (1000) | 800 (360) |
Effective height (mm) | 7522 | 2800 |
Prestressing steel | ||
 Material | Φ15.2 mm Seven-wire strands | Φ15.2 mm Seven-wire strands |
 Yielding strength (MPa) | 1860.0 | 1968.2 |
 Prestressing force (MPa) | 842.3 | 842.3 |
Longitudinal reinforcement | ||
 Material | D16 | D10 |
 Yielding strength (MPa) | 400.0 | 544.6 |
 Reinforcement ratio (%) | 0.2 (Minimum) | 0.2 (Minimum) |
Transverse reinforcement | ||
 Material | D22 | D13 |
 Yielding strength (MPa) | 400.0 | 476.3 |
 Volumetric ratio (%) | 1.2 | 1.2 |
Footing reinforcement | ||
 Material | D32 | D32 |
 Yielding strength (MPa) | 400.0 | 463.6 |
Shear resistance connecting structure | ||
 Material | STK490 (139.8/165.2 mm) | STK490 (60.5/76.3 mm) |
 Yielding strength (MPa) | 315 | 315 |
Strength of concrete (MPa) | ||
 Footing | 40.0 | 48.1 |
 Precast footing segment | 40.0 | 48.1 |
 Column | 40.0 | 48.1 |