Research Article
Mechanical and Parametric Analysis of Cracks in Polypropylene Fiber Concrete U-Shaped Girder
Table 1
Design parameters of prestressed steels.
| Object | Specification | Quantity of steels | Location | Control tension stress (MPa) |
| N1, N1′ | 15.2 | 7 | Web | 1246.2 | N2, N2′ | 15.2 | 11 | Bottom slab | 1339.2 | N3, N3′ | 15.2 | 10 | Bottom slab | 1339.2 | N4, N4′ | 15.2 | 10 | Bottom slab | 1339.2 | N5, N5′ | 15.2 | 10 | Bottom slab | 1339.2 |
|
|