Design Examples of Steel and Steel-Concrete Composite Bridges - Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges - page 334

Number of Bolts for the Diagonal Member D 1

F Ed
F s , ult ¼

6711 5

206 ¼ 32

:

N D ðÞ¼ : 6 bolts, taken as 36 bolts (18 bolts in each side

acting in double shear)

4.3.3.43 Design of Joint J 9
Joint J 9 (see Figure 4.101 ) can be designed using the same M27 high-strength
pretensioned bolts as follows.

Number of Bolts for the Vertical Member V 3
N V ðÞ¼

7
103 ¼ 31 bolts, taken as 32 bolts (16 bolts in each side
acting in single shear)

F Ed
F s , ult ¼

3190 :

2 Flange plate = 350 × 28
Web plate = 344 × 18

Joint J 9

350 mm

400 mm

350 mm

Cover plate = 550 × 10
2 Web plate = 450 × 10
Lower flange plate = 400 × 10

2 Flange plate = 350 × 24
Web plate = 352 × 16

400 mm 400 mm

V 3

D 2

L 2 L 3

450 mm 450 mm

550 mm

Cover plate = 550 × 16
2 Web plate = 450 × 16
Lower flange plate = 400 × 16

400 mm

Minimum 15°

450 mm

550 mm

Figure 4.101 Details and drawings of the main truss joint J 9 .