Design Examples of Steel and Steel-Concrete Composite Bridges - Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges - page 254

Field splice position Field splice position

8500 7000 7000 8500

7700 15600 7700

6 × 5000 = 30,000 mm

31,000 mm

Figure 4.31 Positions of field splices in the main plate girder.

275 MP a

3

10 cm

251.6 MPa

140 cm

300 cm

y y

290 cm

1.6

27

3

60

Figure 4.32 The field splice of the main plate girder.

The top row of bolts in the web (see Figure 4.32 ) is subjected to horizontal
shear from the bending moment distribution, assuming the yield stress
reached at the extreme and lower fibers of the flanges, and vertical shear from
the applied loads. Using a spacing of 10 cm between two adjacent bolts,
an edge spacing of 5 cm, and a hole of 3 cm (2.7 cm bolt diameter plus