General Information

Figure 1 shows a suspension bridge that is used by motorcycles, bicycles and pedestrians.

Steel Truss Girder

Figure 2 shows a schematic three-dimensional view of a steel truss girder sector.

The truss is made of L-sections and consists of zig-zag diagonals, verticals, cross members, and cross braces. The verticals, the cross members, and the cross braces are placed each zig-zag period. The hangers are connected to the upper chords over the verticals by welded U-bars. Figure 3 shows the truss viewed from below.

Over the cross members are placed three timber stringers, and the deck consists of timber planks.

Figure 4 shows a side view of a bridge sector on shore 1.

A horizontal member made of an L-section connects a vertical with a diagonal (on one side and shore 1 only). The same region is used for the chord-to-chord connection, which consists of an additional (overlapping) L-section fixed by bolts and nuts.

Figure 5 shows a side view of a bridge sector on shore 2.

A deformed bottom chord is noticeable, and the vertical clearance h ≅ 2 m. Figure 6 shows the deformed bottom chord.

A new bottom chord made of an L-section with a smaller size is welded to the bottom node regions.