General Information
Figure 1 shows a suspension bridge that is used by motorcycles, bicycles and pedestrians.
![Suspension bridge over a river](bridges/suspension-bridges/bridge-15/1-suspension-bridge.jpg)
Type | Single-span suspension bridge |
Main span | ≅ 100 m |
Deck width | ≅ 2 m |
Deck width to main span ratio | ≅ 1:50 |
Pylon | Reinforced concrete (H-shaped) |
Girder | Timber transverse beam |
Pylon Deformation
Figure 2 shows the pylon top-region on shore 1.
![Top region of an H-shaped pylon](bridges/suspension-bridges/bridge-15/2-pylon-top.jpg)
The main cable inclination α differs from β. Figure 3 shows the pylon on shore 1.
![Pylon deformation](bridges/suspension-bridges/bridge-15/3-pylon.jpg)
The yellow vertical line represents a straight axis, while the double yellow arrow marks the pylon-top horizontal displacement d.
Main Cable Anchorage
Figure 4 shows a main cable anchorage.
Front view | Enlarged front view |
![Main cable anchorage](bridges/suspension-bridges/bridge-15/4-anchorage.jpg)
The main cable is connected to nine short looped cables; each of them is connected to a pulley wheel.
Stringers
Figure 5 shows a main span sector viewed from above.
![Main span timber deck](bridges/suspension-bridges/bridge-15/5-timber-deck.jpg)
The deck consists of timber boards, which are connected to the stringers by carriage bolts, washers, and nuts. Figure 6 shows a main span sector viewed from below.
![Timber boards to stringer connection](bridges/suspension-bridges/bridge-15/6-stringers-carriage-bolts.jpg)