Civil Engineering Reference
In-Depth Information
4.6.2 Design of the Cross Girders
The cross girders (the lateral steel beams) carry concentrated loads from the
stringers as shown in
Figure 4.171
.
Therefore, the dead and live loads acting
on an intermediate cross girder can be calculated as follows:
Dead Loads
Intermediate reactions from stringers due to dead loads
¼
15
:
5
5
¼
77
:
5kN
77.5
77.5
77.5
77.5
77.5
77.5
77.5
38.75 kN
38.75 kN
3 kN/m
2 m
2
2
2
2
1
2
1
1
334
334
208.75 kN
205.75
128.25
125.25
122.25
122.25
44.75
44.75
+
38.75
+
38.75
S.F.D.
-
38.75
38.75
-
44.75
122.25
44.75
122.25
125.25
320
128.25
205.75
208.75 kN
2
k
2
83.5
-
83.5
-
B.M.D.
+
250.5
250.5
766.5
Figure 4.171 Straining actions from dead loads acting on an intermediate cross girder.
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