Design Examples of Steel and Steel-Concrete Composite Bridges - Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges - page 439

d 1 = 26 cm

y

1

C 1 = 12.7

x x

C 2 = 32.4

1

1

y

Figure 4.199 The cross section of the vertical members V 3 and V 5 .

26 cm

y

3.4

x x

2.4

3.4

y

Figure 4.200 The cross section of the diagonal tension member D 1 .

connecting the member with gusset plates are M27 high-strength preten-
sioned bolts having a clearance of 3 mm (hole diameter

¼ 30 mm). The

member can be designed as follows:

08 cm 2

A net ¼ 246 : 88 4 3 : 4 3 ¼ 206 :

Af y
g M0 ¼

246 : 88 275 100

1

N pl , Rd ¼ ¼ 6,789,200N ¼ 6789 : 2kN > N Ed

: 0

¼ 6203 : 9kN

0 : 9 A net f u 0 : 9 20,608 430

1

N u , Rd ¼

g M2 ¼

¼ 6,380,236 :

8N ¼ 6380

:

2kN

: 25

> N Ed ¼ 6203 : 9kN

4.6.3.19 Design of the Diagonal Tension Member D 3
The diagonal member D 3 , shown in Figure 4.201 , carrying a maximum ten-
sile design force of 3284.3 kN can be designed adopting the same procedures
used with D 1 as follows: