General Information
Figure 1 shows a pedestrian hybrid cable-stayed suspension bridge.
![Pedestrian hybrid cable-stayed suspension bridge over a river.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-3/1-hybrid-cable-stayed-suspension-bridge.jpg)
Type | Three-span hybrid cable-stayed suspension bridge |
Main span | ≅ 140 m |
Deck width | ≅ 2 m |
Pylon | Reinforced concrete (H-shaped) with two cantilever lateral beams |
Girder | Steel truss girder |
Stay cable arrangement | Single (two cable planes) |
Stay and Lateral Cables
Figure 2 shows a schematic partial three-dimensional view of a bridge sector on one shore.
![Three dimensional drawing of a pedestrian hybrid cable-stayed suspension bridge sector.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-3/2-3d-view.jpg)
The bridge has two stay and two lateral cables per shore. They are connected to the anchorage, the pylon, and the truss girder of the main span. The stay cables are connected to the pylon's mid-height horizontal braces; the lateral cables, to the cantilever lateral beams. The connection position between stay cables and truss girder, as well as lateral cables and truss girder, is located about a quarter of the main span. A pylon and a main span connection region are shown in figures 3 and 4, respectively.
![Pylon region with marked main cables, stay cables, and lateral cables.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-3/3-pylon-region.jpg)
![Connection between cables (stay, lateral and hanger) and main span truss girder.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-3/4-main-span-region.jpg)
Main and Stay Cables Arrangement
Figure 5 shows a pylon viewed from the front.
![Main and stay cables connected to the pylon horizontal braces.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-3/5-pylon.jpg)
Main and stay cables are placed on the horizontal braces.
Steel Truss Girder
Figure 6 shows a side view of a truss girder sector.
![Web stiffened U-profile connected to the bottom chord.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-3/6-truss-girder.jpg)
The truss height h ≅ 0.4 m, and the bottom chords are also connected to web stiffened U-profiles— height ≅ 0.2 m. The bottom chord to web stiffened U-profile connection consists of short cantilevered L-profiles, as shown in figure 7.
![Connection between bottom chord and web stiffened U-profile.](bridges/hybrid-cable-stayed-suspension-bridges/bridge-3/7-u-profile-connection.jpg)