The key point of the program was the inspection of the pylon of the pier No. 4 that is being erected by sliding formwork method for the first time in the Russian bridge building industry
There was organized a technical tour around the main places of the Oka River cable-stayed bridge construction site on the M-12 Moscow – Nizhny Novgorod – Kazan Highway: the construction of the pylon of the pier No. 3 on the left bank of the Oka River, the construction of the pylon of the pier No. 4 on the right bank, as well as incremental launching towards the pylon of the superstructure 4-6.
The pylon of the pier No. 3 is erected by self-climbing formwork method. The pylon is 80.6 meters high. At the moment, 59.8 meters have been filled with concrete, which makes up 74%.
The installation of the superstructure 4-6 is carried out by incremental launching method using a building berth and subsequent longitudinal launching. At the moment, work on the 7th section out of 13 sections is being carried out – 101 meters out of 235 (43%) have been launched.
“For the first time in the Russian bridge building industry the pylon of the pier No.4 in the riverbed is being erected by the slip formwork method. In comparison to the conventional method which implies self-climbing formwork usage, due to the continuity of concreting this method allows to reduce the time needed to construct the piers by more than a half. Currently both pylon legs are being built simultaneously at a speed of 2.2 meters per day. A technological platform is installed between the legs to avoid deviations while lifting the formwork. As for now, 22.7 meters (25%) out of 89.9 meters have been concreted,” Deputy Project Manager of SK MOST JSC (part of Bamtonnelstroy-Most Group of Companies) Daulet Sizo said.
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 Vladimir Region with the Nizhny Novgorod Region near the city of Murom. The bridge will be 1,377.6 meters long and will have a cable-stayed central span with a length of 254 meters. 1,100 people and more than 100 units of equipment are involved in the construction.