Research Article
Ultimate Limit Design of Strengthened Steel Columns by Mortar-Filled FRP Tubes
Table 1
Geometric dimensions of specimens.
| | Specimens | Cross section | Nominal slenderness ratio | FRP fabrics layers | Length (mm) | l0 (mm) | tc (mm) | bc (mm) |
| | C70-5 | Cross | 70 | 5 | 1140 | 70 | 6 | 80 | | C105-0 | 105 | 0 | 1720 | | C105-2 | 2 | | C105-5 | 5 | | C140-5 | 140 | 5 | 2310 | | C175-5 | 175 | 5 | 2890 |
| | Specimens | Cross section | Nominal slenderness ratio | FRP fabrics layers | Length (mm) | l0 (mm) | tf (mm) | tw (mm) | bI (mm) | hI (mm) |
| | I70-5 | I | 70 | 5 | 780 | 90 | 6 | 6 | 50 | 70 | | I105-0 | 105 | 0 | 1180 | 70 | | I105-2 | 2 | | I105-5 | 5 | | I140-5 | 140 | 5 | 1580 | | I175-5 | 175 | 5 | 1990 |
|
|
The inner diameter and wall thickness of FRP tubes are 88 mm and 6.5 mm, respectively.
|
