General Information

Figure 1 shows a hybrid cable-stayed suspension bridge that is used by motorcycles, bicycles and pedestrians.

Hybrid cable-stayed suspension bridge.
Hybrid cable-stayed suspension bridge over a river.
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.

Main span.
Three dimensional drawing of the main span of a hybrid cable-stayed suspension bridge.

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.
Mid-span region of a hybrid cable-stayed suspension bridge.

The twin I-girder is connected to two hanger and eight stay cables, as shown in figure 4.

Hanger and stay cables to I-girder connections.
Connection between hanger cable and I-girder; connection between stay cables and I-girder.
  • What are some possible reasons for the used main span cable system?
  • Stay Cable 1

    Figure 5 shows a schematic partial three-dimensional view of a main span sector.

    Main span sector.
    Three dimensional drawing of a main span sector.

    Video 1 shows stay cable 1 during hand-induced vibration.

    Video 1. Stay cable 1 during hand-induced vibration.
  • How much load does stay cable 1 carry?