Civil Engineering Reference
In-Depth Information
Figure 14.8
Pony truss bridge.
Solving a 3D model on ANSYS shown in Figure 14.9, the following
eigenvalue results were obtained:
Set
Time/Freq
1
0.31468E
+
07
2
0.34171E
+
07
3
0.34276E
+
07
4
0.34995E
+
07
5
0.37006E
+
07
Hence the buckling load = 3146.8 kip (13,997 kN), which is close to
2988.66 kip (13,293.6 kN) as calculated from Timoshenko's method.
Figures 14.10 and 14.11 show the different buckling modes.
y
x
z
Figure 14.9
ANSYS model of the pony truss bridge.
Search WWH ::
Custom Search