The 9 KMs long elevated Priority Corridor between IIT Kanpur and Motijheel is being constructed under the Kanpur Metro Rail Project. Last night another ‘Steel Girder’ was erected at Rawatpur Tiraha. In this span the first ‘Steel Box Girder’ was placed on March 27, 2021. These girders are of 45m length, assembled near the location and erected by cranes in the night on the busy crossing.
On this occasion, Managing Director, UPMRC, Shri Kumar Keshav said, “In view of heavy traffic at Rawatpur, it was planned that no Piers should come in the middle of Rawatpur Tiraha and due to this the distance between the two Pillars was increased up to 45 meters in this section. This is the reason that in this span two specially designed light weighted ‘Steel Box Girders’ have been placed instead of U or I-girder. UPMRC always strives to ensure that the Metro Corridor is planned and is executed in such a way that traffic movement doesn’t get affected.”
Three locations have been identified between IIT and Naubasta (Corridor-1), where Steel Girders are to be laid. The first Steel Span has been placed near Rawatpur, the second will be erected at Sisamau Nala and the third one near Vasant Vihar.
Why ‘Steel Box Girder’?
• It was not possible to place a U or an I-girder of this length at the said span hence ‘Steel Box Girder’ has been introduced.
• The length of the steel girder is longer than the U-girders that are being used in the Corridor but relatively lighter in weight. It is also to be mentioned that the length of the referred steel span is 45 meters while U-girder has an average length of 27 meters. A 27-meter U-girder weighs about 147 tons, while 45-meter Steel Span weighs about 120 tons.
• Three locations have been identified between the 23KMs long IIT & Naubasta stretch in where Steel Girders are to be laid. The first Steel Span has been placed near Rawatpur, the second will be erected at Sisamau Nala and the third one will be placed near Vasant Vihar. Separate steel girders are to be laid for up-line and down-line.
Each 45-meter long steel girder is being prepared by connecting 5 segments.