Ι.MAVRAKIS & PARTNERS S.A.
STRUCTURAL DESIGN OFFICE 

 The bridge which is part of the new 2–way high speed railway line connecting Lianokladi and Domokos, passes over a valley 70m deep and has a total length of 404.8m consisting of three simply supported tied arches (126.85+151.10+126.85).

Carriageway’s width is 14.25m and the height of the two end arches is 25.08m while the height of the middle one is 29.64m. The deck comprises two, 2.90m high, steel box girders connected with cross beams every 3.80m. The three arches comprise a steel circular hollow section Φ1800 DIA, while the two piers consist of a rectangular hollow concrete section with a varying width.

The construction method that was chosen to be carried out is that of incremental launching.

Our role in the project included the following:

 -        Detailed design of the temporary structures (temporary piers, retaining walls)

-        Detailed design of the incremental launching procedure

-        Precamber design of the arches and the main girder

-        Design of the prestressing (forces and sequence) of the hangers

-        Seismic isolation design of the bridge using time history analysis

-        Design of the temporary assembly yard

-        Design of vandalism and accidental protection systems of the hangers

-        Shop drawings of the whole bridge as well as the temporary piers.