Design Examples of Steel and Steel-Concrete Composite Bridges - Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges - page 435

b = 36 cm

1 y

x x

1

1

y

1

50 cm

Figure 4.196 The cross section of the lower chord member L 1 .

It should be noted that member L 1 having a force of zero under the dead
and live cases of loading can be taken with the same cover plate width and
the same web height but with a minimum thickness of 1 cm as shown in
Figure 4.196 .

4.6.3.16 Design of the Compression Vertical Member V 1
Let us now design the compression vertical member V 1 , shown in Figure 4.197 ,
carrying a compressive design force of 4433.9 kN. To assume a reasonable
cross section for the compression vertical member, the following parameters
can be considered:

L
15 22 ¼

4000
15 22 ¼ 26

d 1 ¼ : 7 181 : 8mm taken as 260 mm :

d 1 = 26 cm

y

4

C 1 = 10.7

x x

C 2 = 26.4

4

3

y

Figure 4.197 The cross section of the vertical compression member V 1 .