Design Examples of Steel and Steel-Concrete Composite Bridges - Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges - page 415

Bending Moment Due to Dead and Live Loads with Dynamic Effect
Added (M Ed )
M Ed ¼M D : L : g g + M L : L : g q ¼ 334 1 : :

2 1

:

35 ¼ 3100

:

3 + 1975 7kNm

Shearing Force Due to Dead and Live Loads with Dynamic Effect Added (Q Ed )
Q Ed ¼Q D : L : g g + Q L : L : g q ¼ 208 :

75 1

: :

25 1

:

35 ¼ 1164

:

3 + 661 1kN

Design Bending Moment (M Ed ) and Shear Force (Q Ed )
M Ed ¼ 3100 7kNm

Q Ed ¼ 1164

:

: 1kN

Design of the Cross Girder Cross Section
The cross girder is designed as a welded plate girder as shown in Figure 4.175 .
The web height is taken as equal to 1200 mm, which conforms to the

2.4

C 1 = 10.4

y

y

120 cm

118.4

1.6

2.4

24

Figure 4.175 Welded plate girder section of cross girders.