Deformation Forecast of Main Girder Enhanced by Stay Cable System with Unequal Interval Grey Model and Residual Composite Correction

Table 1

The deformation values of C21 in different tensioning phases.

Tensioning phase	Tensioning force/kN	Deformation/mm
1	630	25.30
2	1,050	31.33
3	1,155	33.27
4	1,365	37.15
5	1,575	42.78
6	1,785	45.18
7	1,890	47.23