The Kerch Bridge constructors have assembled the lower parts of the automobile and railway arch spans, the so called tie bars.
Presently, as Construction.RU has been told today by the «Krymsky Most” press office, the assembly and installation of the arch spans are being prepared. Almost 5,500 of 10,000 tons of blocks have been enlarged on the stand.
The maximal height of the span is 45m. More than 500 engineers and workers are welding the ready units and joining them with bolts
The quality of welding is tested with ultrasound. The combination of a superstructure with through main trusses and a span is applied on the railway section of the bridge. Trains will pass along the truss’s elements. They are connected with spans via suspenders.
The span fulfills a supporting function for a long arch’s span. The combined system provides for the demanded reliability of the bridge. The speed of the wind at the level of the arch span road surface may achieve 40m per sec.
Special façade structures will be install to prevent from aerodynamic phenomena. They will provide for minimization of the wins impact and comfortable exploitation.
Warning lights will be installed on the spans, 80 m high from the water. Aeronavigation signaling requirements are also taken into account.
Special 200m long piers are being prepared for the technological operation on transporting and assembly of spans at the construction site.
Along the piers, the ready-made spans will be moved to a waterborne vehicle. To remind you, it is the first time in Russia that automobile and railway spans (respectively, 227m long and weighing 4,000tons and 227m long and weighing 6,000 tons) are erected in off-shore conditions.