General Information
Figure 1 shows a suspension bridge that is used by vehicles up to 1.5 tons and pedestrians.
| Type | Single-span suspension bridge |
| Main span | ≅ 140 m |
| Deck width | ≅ 2.5 m |
| Deck width to main span ratio | ≅ 1:56 |
| Pylon | Reinforced concrete truss |
| Girder | Steel transverse beam |
Pylons
Figure 2 shows a pylon.
The pylon consists of a reinforced concrete truss. Figure 3 shows a schematic partial three-dimensional view of the used pylon and an H-shaped one with saddles.
| Used pylon | H-shaped pylon with saddles |
Is the used pylon required for structural efficiency reasons?
Hanger Cable to Girder Connection Failure
Figure 4 shows a schematic partial cross-section of the bridge.
Hanger cable and girder are connected by a hooked rebar and an end-plate; girder, end-plate, and hooked rebar are joined by welding. Figure 5 shows a hanger cable to girder connection.
Figure 6 shows a failed hanger cable to girder connection.
The hooked rebar failed; the failure point is located in the hook region.
Does this failure affect the bridge safety?