General Information
Figure 1 shows a pedestrian suspension bridge.
| Type | Single-span suspension bridge |
| Main span | ≅ 9 m |
| Deck width | ≅ 0.6 m |
| Pylon | Timber log |
| Girder | Bamboo transverse beam |
Bridge Configuration
Figure 2 shows the pylon on shore 1.
The pylon is made of a timber log, and the base is embedded in the ground. The main cables (made of ropes) pass over the branch bark ridge and are tied to a fallen tree. A bamboo pole is used for widening the distance between the two main cables. Figure 3 shows the pylon on shore 2.
The main cables also pass over the branch bark ridge; in contrast to shore 1, the ropes are tied to a steel wire rope that is anchored on a RC block. The wire rope termination consists of U-bolt clamps. Figure 4 shows a main span sector.
The deck consists of five bamboo poles placed side-by-side that are tied together by ropes. The hanger cables (also made of ropes) are tied to the girders and deck's external poles. Figure 5 shows the bridge entrance on shore 1.
The first hanger cable set is tied to the deck's external poles, and the abutment consists of a single sandbag. Figure 6 shows a schematic three-dimensional view of the suspension bridge.
Figure 7 shows the suspension bridge.
The height from the deck to the sandy creek bed (h) is about 0.8 m. Figure 8 shows a schematic three-dimensional view of the bridge and a two-span continuous beam bridge variant.
The mid-span support consists of sandbags.
Which variant uses resources probably more efficiently?