General Information

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

Arrangement of Stay Cables

Figure 2 shows a schematic three-dimensional view of the bridge.

There are 24 stay cables: 20 front and 4 back stays. Stay cables 5 and 6 are anchored to the girder at the same location, as shown in figure 3.

Stay Cables Anchorages

Figure 4 shows a stay cable to girder anchorage.

The stay cables are anchored to the girder by a turnbuckle and a multi-bent rebar. The girder has a hole in the web region, through which the multi-bent rebar passes. Figure 5 shows an anchorage viewed from above.

Figure 6 shows a further anchorage viewed from above.

The multi-bent rebar is differently shaped than the multi-bent rebar in figure 5.

The stay cables are anchored to the pylon as shown in figure 7.

The stay cables are anchored to the pylon top by a single embedded U-bar, and the front stays are stacked one on top of the other. Figure 8 shows a schematic cross-section of the pylon top region.

Wire Rope Termination

Figure 9 shows a stay cable end in the main span region.

Each stay cable is made of a steel wire rope, and the termination consists of U-bolt clamps. The U-parts are on the live end of the wire rope, and no wire rope thimble is installed. Each front stay cable has three U-bolt clamps: two are used for the girder anchorage, and one is used for the pylon anchorage, as shown in figure 10.

Stay Cable Vibration

Figure 11 shows the bridge viewed from the mid-span region.

The stay cables are sagging. Video 1 shows stay cable 5 during hand-induced vibration.

Suspended Bridge

A suspended bridge as an alternative variant and the used cable-stayed bridge are shown in figure 12.