General Information
Figure 1 shows a hybrid cable-stayed suspension bridge that is used by motorcycles, bicycles and pedestrians.
![Hybrid cable-stayed suspension bridge over a river.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-2/1-hybrid-bridge.jpg)
Type | Single-span hybrid cable-stayed suspension bridge |
Main span | ≅ 75 m |
Deck width | ≅ 2 m |
Girder | Steel twin I-girder |
Pylon | Reinforced concrete (A-longitudinal shaped) |
Stay cable arrangement | Radial (two cable planes) |
Main Span Cable System
Figure 2 shows a schematic partial three-dimensional view of the main span.
![Three dimensional drawing of the main span of a hybrid cable-stayed suspension bridge.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-2/2-3d-view.jpg)
The letter h indicates the connection position between a hanger cable and the I-girder; the letter s, between a stay cable and the I-girder. The main span is connected to 6 hanger and 16 stay cables. Figure 3 shows a side view of the mid-span region.
![Mid-span region of a hybrid cable-stayed suspension bridge.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-2/3-mid-span-region.jpg)
The twin I-girder is connected to two hanger and eight stay cables, as shown in figure 4.
![Connection between hanger cable and I-girder; connection between stay cables and I-girder.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-2/4-hanger-and-stay-cables-connections.jpg)
Stay Cable 1
Figure 5 shows a schematic partial three-dimensional view of a main span sector.
![Three dimensional drawing of a main span sector.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-2/5-3d-view.jpg)
Video 1 shows stay cable 1 during hand-induced vibration.