Čemerno Bridge

The assembly of the steel structure was a unique challenge, carried out using the incremental launching method with hydraulic jacks. The trajectory was corrected at each pier using horizontal hydraulic jacks, allowing for precise alignment and rapid completion thanks to careful planning.

The traffic lanes, including edge strips, were 2 x 3.3 m, while service lanes were 2 x 0.7 m. The bridge railing area was allocated 2 x 0.45 m, resulting in a total bridge width of 8.90 meters.

The superstructure, with a span layout of L = 41 + 6 x 52 + 41 = 394 m and width of 8.90 m, featured a cross-section composed of two steel I-girders spaced 5.0 m apart, connected by a reinforced concrete deck slab.

The steel supporting structure was a continuous girder system, supported on nine reinforced concrete piers—two at the ends and seven intermediate. The structure consisted of two longitudinal, welded steel I-beams with a height of 2.5 m and a spacing of 5,000 mm.

The main girders were braced with transverse beams positioned at the eighth points of mid-spans, and at the sixth points of the first and last spans.

Konstruktor was responsible for the design and execution of the steel structure, successfully delivering this complex infrastructure project.