Table 3 Wall thickness of main beam materials.
From: Effect of single tube sections on the structural safety of Chinese solar greenhouse skeletons
Serial number | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
Main beam material wall thickness/mm | 30 × 60 × 1 | 30 × 60 × 1.5 | 30 × 60 × 2 | 30 × 60 × 2.5 | 30 × 60 × 3 |
