Research Article
Research on the Application of Prefabricated Load-Bearing Structure in Prefabricated Roadway in Filling Body
Table 2
Cross-sectional parameters of U-shaped steel.
| | Model | Cross-sectional area (cm2) | Structural parameter | Tensile strength
(MPa) | Yield limit
(N/cm2) | | Ix (cm4) | Iy (cm4) | Wy (cm3) | Wx (cm3) |
| | U25 | 31.54 | 455.1 | 506 | 75.92 | 81.68 | 530 | 33,500 | | U29 | 37 | 612.1 | 770.7 | 103 | 94 | 530 | 33,500 | | U36 | 45.7 | 955.5 | 1,237 | 148 | 137 | 530 | 36,000 | | U40 | 51.02 | 1,366.9 | 1,064.1 | 159.9 | 141.2 | 580 | 39,000 |
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