Research Article
A Study on Axial Compression Performance of Large Diameter-Thickness Ratio Concrete-Filled Gas Drainage Steel Pipe
Table 2
Design parameters for specimens.
| | No. | D (mm) | t (mm) | L/D | D/t | fy (MPa) | fcu (MPa) | E | α | | εy | ξ |
| | SSP-I | 430 | 3 | 3 | 141.6 | 235 | 30 | 189 | 0.028 | 0.29 | 1923 | 0.22 | | SSP-II | 430 | 3 | 3 | 141.6 | 235 | 30 | 189 | 0.028 | 0.29 | 1923 | 0.22 | | RSP | 330 | 5 | 3 | 66 | 235 | 30 | 161 | 0.059 | 0.27 | 1657 | 0.46 |
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