General Information
Figure 1 shows a multi-span pedestrian suspension bridge with four central spans.
![Multi-span pedestrian suspension bridge over a river](bridges/suspension-bridges/bridge-2/1-multi-span-suspension-bridge.jpg)
Type | Multi-span suspension bridge |
Main span | ≅ 110 m |
Deck width | ≅ 2.5 m |
Deck width to main span ratio | ≅ 1:44 |
Pylon | Reinforced concrete |
Girder | Steel transverse beam |
Pylons
Figure 2 shows a schematic lateral view of the bridge.
![Lateral view of a multi-span pedestrian suspension bridge](bridges/suspension-bridges/bridge-2/2-lateral-view.jpg)
There are two pylon types (A and B); type A is shorter than type B, and the spans are approximately equal. Figure 3 shows the pylons of spans 2 and 3, while figure 4 shows the pylons of span 3.
![Pylons with different heights](bridges/suspension-bridges/bridge-2/2-central-spans.jpg)
![Asymmetric main cable curve of a multi span pedestrian suspension bridge](bridges/suspension-bridges/bridge-2/3-central-span.jpg)
Due to the different heights of the pylons, the main cable curve is asymmetric.