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