Country's first 31-metre U-girder successfully cast for Bengaluru Suburban Rail Project

U-girders are U-shaped pre-tensioned precast girders that allow the track to be laid right away.

A 31-meter long, single span U-girder, has been successfully cast for the first time in India for Bengaluru Suburban Rail Project on Saturday night at Casting Yard, Devanahalli.

It is an important milestone in the construction of the Bengaluru Suburban Rail Project, the BSRP said in a statement. The 'Mallige' line or Corridor-2 includes the construction of around 8 km viaduct or elevated section, from Hebbal to Yeshvantpura, using such U-girders. U-girders are U-shaped pre-tensioned precast girders that allow the track to be laid right away. U-girders are widely used in metro projects all over the world since they not only ensure superior quality but also save construction time.

"So far, 28-metre-long U-girders have been used in other metros. These girders are cast in the yards and will be transported to the location and launched over piers using high-capacity cranes/launchers," the BSRP said. It requires careful planning and accuracy to cast these U-girders in casting yards, away from the cities, it added.