1,184 tons of metal structures were pre-assembled on a building berth within 3 months of launching
The builders of Bamtonnelstroy-Most Group of Companies have completed the longitudinal launching over the right-bank floodplain of the Oka River at the 4th stage of the M-12 Moscow – Nizhny Novgorod – Kazan high-speed federal highway construction project.
In 3 months, bridge builders have pre-assembled 1,184 tons of metal structures on a building berth. This work allowed to begin the roadway slab installation and preparation for the subsequent cantilever erection of a girder over the riverbed from the bridge pylon on the Nizhny Novgorod bank side. The distance covered between the piers during the superstructure launching was 235 meters.
A launching nose, a temporary cantilever structure, was mounted on the front end of the superstructure in order not to let it go below the design level marks during launching and so it could “slide” onto the pier. To finish the final launching stage, another auxiliary structure was mounted on the rear end of the advancing structure in order to push the superstructure from the building berth, where it had been assembled, and to ensure structural stability in the original position.
The bridge across the Oka River is the only cable-stayed bridge on the M-12 Moscow – Nizhny Novgorod – Kazan Highway under construction. It will connect the banks of the Vladimir Region and Nizhny Novgorod Region near the city of Murom. The bridge is 1,377.6 meters long and has a 254-meter-long central cable-stayed span. 1,100 people and more than 100 units of equipment are involved in its construction. Works are carried out around the clock.