General Information
Figure 1 shows a two-lane rod reinforced concrete tied-arch bridge that is used by non-heavy vehicles.
| Number of spans | 4 |
| Main span | ≅ 33 m |
| Arch rise | ≅ 4 m |
| Deck width | ≅ 5 m |
Deck Corrosion
Figure 2 shows a main span sector viewed from below.
Detail 1 is shown in figure 3.
Severe corrosion on a longitudinal rebar of the tie is noticeable. Figure 4 shows a corroded deck sector.
Detail 2 is shown in figure 5.
What are some possible methods to assess the corrosion state of the rebars?
Sidewalks
Figure 6 shows a sidewalk sector.
The sidewalk is connected to the suspenders and the tie by a steel frame, as shown in the schematic three-dimensional views in figure 7.
| Back view | Front view |
The steel frame is made of C-sections and two plates; it connects the front and back sides of the suspender and the tie beam by direct contact. Figure 8 shows a bottom view of the sidewalk.
