Design Examples of Steel and Steel-Concrete Composite Bridges - Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges - page 260

2
2

4
4

17 cm 5

7 2.5 2.5 7 5

60 cm

R = 17 cm

5

5 60 cm 5 5

2

16.5 16.5

80 cm

15

3327.2 kN

544.15 kN

1590 kN

10 30.0 15 cm 30.0 10

10 90 cm 10

s 1

s 1

7.5

Socket

Socket

s y

1 0

40.0 cm 40.0 cm

15

x

x

90

80

10 s

y

-

f min = 0.19 MPa

3.65 MPa

f max = 6.17 MPa

Figure 4.34 Detailing of the hinged line rocker fabricated steel bridge bearings.

Q lak ¼ 33 L a , b ¼ 33 30 ¼ 990 kN 1000 kN ½ , for Load Models 71

Q lbk ¼ 20 L a , b ¼ 20 30 ¼ 600 6000 kN ½ ,

for Load Models 71,SW = 0,SW = 2 and HSLM

Total the braking and traction forces ( Q tot ) ¼ 1590 kN (see Figure 4.34
for the direction of the forces). Also, the reactions from upper and lower