| 跨度 | 边高 | 顶高 | 档距 | 主要管截面尺寸 |
| 15 m | 4 m | 7.9 m | 5 m | 204 x 120 x 4 mm |
| 16 m | 4 m | 8.0 m | 5 m | 204 x 120 x 4 mm |
| 20 m | 4 m | 8.7 m | 5 m | 204 x 120 x 4 mm |
| 25 m | 4 m | 9.5 m | 5 m | 256 x 121 x 5 mm |
| 30 m | 4 m | 10.3 m | 5 m | 300 x 120 x 5 mm |
| 35 m | 4 m | 11.4 m | 5 m | 350 x 120 x 5 mm |
| 40 m | 4 m | 11.9 m | 5 m | 350 x 120 x 5 mm |