General Information

Figure 1 shows a pedestrian suspension bridge.

Pedestrian suspension bridge.
 Pedestrian suspension bridge in a park
Type Three-span suspension bridge
Main span ≅ 45 m
Deck width ≅ 1.5 m
Deck width to main span ratio ≅ 1:30
Pylon Steel and reinforced concrete
Girder Steel longitudinal beam

Connection Between Girder and Pylon

Figure 2 shows the girder in the pylon region.

Girder (pylon region).
Girder in the pylon region

The girder is not connected to the pylon.

  • What are some possible reasons for not connecting the girder to the pylons?
    What are the main structural consequences?
  • Connection Between Girder and Abutment

    Figures 3 and 4 show the girder in the abutment region.

    Girder (abutment region, top view).
    Girder in the abutment region

    The girder is not connected to the abutment.

    Girder (abutment region, lateral view).
    Girder in the abutment region
  • What are some possible reasons for not connecting the girder to the abutments?
    What are the main structural consequences?
  • Wire Rope Termination

    Figure 5 shows two hangers at their bottom ends.

    Hangers.
    Hanger cable termination using U-bolt clamps

    The hangers are made of steel wire ropes, and the end termination consists of U-bolt clamps. The U-parts are on the live end of the cables, and the wire ropes are connected directly (without wire rope thimbles) to the single-hole plates. The left hanger has two U-bolt clamps, while the right hanger has three U-bolt clamps.

  • Is the terminal efficiency of the left hanger the same as the right hanger?