楼面钢承板YX99-450-900型截面参数：
|
厚度（mm） Thickness |
截面惯性矩 (cm4/m) Moment of inertia |
截面抵抗矩 (cm3/m) Section of modulus |
| 1.0 | 65.97 | 30.39 |
| 1.2 | 79.16 | 36.47 |
| 1.5 | 98.95 | 45.36 |
| 1.8 | 118.75 | 54.70 |
| 2.0 | 131.94 | 60.78 |
