Table 1 Verification of various ratios with span for different skew angles
From: Parametric study on prestressed skewed box-girder bridge
Forces | Girder | Span (m) | Skew angle (degree) | For dead load | For live load | For prestress load | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Using proposed equation | Using FEM | % variation | Using proposed equation | Using FEM | % variation | Using proposed equation | Using FEM | % variation | ||||
BM (kNm) | Outer | 40 | 30 | 23,666 | 23,817 | 0.632 | 5840 | 5857 | 0.297 | -27,129 | -26,625 | -1.892 |
Inner | 35 | 30 | 18,420 | 18,247 | -0.948 | 5288 | 5286 | -0.031 | -25,509 | -25,527 | 0.071 | |
SF (kN) | Outer | 55 | 50 | -6202 | -6425 | 3.471 | -852 | -866 | 1.545 | 3362 | 3393 | 0.922 |
Inner | 35 | 40 | 2956 | 2978 | 0.730 | 872 | 865 | -0.789 | -3315 | -3324 | 0.283 | |
TM (kNm) | Outer | 60 | 40 | -6047 | -6248 | 3.210 | -1036 | -1078 | 3.907 | 3163 | 3245 | 2.534 |
Inner | 55 | 20 | -3754 | -3626 | -3.509 | -950 | -919 | -3.400 | 2585 | 2609 | 0.944 | |
VD (mm) | Outer | 45 | 10 | -21.89 | -22.11 | 0.998 | -4.29 | -4.30 | 0.092 | 18.424 | 18.356 | -0.369 |
Inner | 60 | 0 | -62.65 | -64.32 | 2.584 | -10.98 | -10.95 | -0.314 | 30.608 | 30.289 | -1.053 | |