General Information
Figure 1 shows a suspension bridge that is used by motorcycles, bicycles and pedestrians.
| Type | Single-span self-anchored suspension bridge |
| Main span | ≅ 9 m |
| Deck width | ≅ 1.5 m |
| Deck width to main span ratio | ≅ 1:6 |
| Pylon | Reinforced concrete and steel |
| Girder | Cold-formed steel (CFS) longitudinal beam |
Bridge Configuration
Figure 2 shows the bridge.
The pylons are made of a reinforced concrete part and a steel part: the former consists of columns installed under the girder, while the latter consists of portal frames installed over the girder. Pylon 1 has two columns and a portal frame placed over the columns (same axis), while pylon 2 has four columns and a portal frame placed away from the columns. Figure 3 shows a side view of pylon 2.
The columns are marked by the numbers.
The main cable layout is shown in figure 4.
The main cables are connected to the ends of the girders, the pylons, and the mid-span region; hanger cables are not installed. Figure 5 shows the mid-span region connection, while figure 6 shows the girders' ends connection.
The main cable passes through a U-shaped plate, which is connected to the girder by a transverse beam.
The main cable is connected to the end of the girder by an eye bolt and sleeve. Figure 7 shows a schematic three-dimensional view of the bridge.
Video 1 shows the main cables during hand-induced vibration.
Beam Bridge vs Suspension Bridge
A steel beam bridge as an alternative variant and the used suspension bridge are shown in figure 8.
The total length of the suspension bridge is about 13 meters, which is the span of the beam bridge.