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Plan to launch 10 girders of Bogibeel bridge

By PRANJAL BHUYAN
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GUWAHATI, Oct 27 � The Construction Organisation of Northeast Frontier Railway (NFR) is planning to launch at least 10 of the girders of the ongoing Bogibeel rail-cum-road bridge project within the current fiscal. Senior officials at the Maligaon-headquartered NFR (Construction) told The Assam Tribune that three girders have already been launched, while seven more are planned for the remaining five months of 2014-15.

�The third girder, having a 125 metre span, was launched in September. It is planned to launch 10 girders in 2014-15,� said an official. Work on the 4.95 km-long rail-cum-road bridge is going on in full swing and Indian Railways is looking to complete it by June 2017. The entire bridge will have a total of 41 girders. The first and second girder span was launched in April and July this year, respectively. �There are a total of 39 girders of 125 metre span and two girders of 33 metre span planned for the bridge. Girder fabrication and assembly works are being done by specialised welded technology. Fabrication of eight girders has been completed and fabrication of eight more are in progress,� he said.

The launching of the third girder last month was done by pulling the three connected girders by two 1,000 metric tonne jack with high tensile steel strands.

As per the official journal of the Indian Railways, the foundation of the main bridge is 42� double-D shaped� well of 16.2X10.5 metre dimension and the �steining thickness of the well is three metre, while the diaphragm is 2.5 metre thick.�

The depth of � the foundation is 58.6 metre, except abutment and shore well where depths are 42 metre and 68.75 metre, respectively. Thickness of the well cap is 2.2 metre.� The substructure of the bridge consists of twin circular hollow piers with outer diameter of 5.3 metre and inner diameter of 3.3 metre.

The girder is having steel flooring system for railway and welded steel truss composite with concrete deck for road on top. The Indian Railways� journal claims that this type of girder for such a structure is being made in India for the first time.

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Plan to launch 10 girders of Bogibeel bridge

GUWAHATI, Oct 27 � The Construction Organisation of Northeast Frontier Railway (NFR) is planning to launch at least 10 of the girders of the ongoing Bogibeel rail-cum-road bridge project within the current fiscal. Senior officials at the Maligaon-headquartered NFR (Construction) told The Assam Tribune that three girders have already been launched, while seven more are planned for the remaining five months of 2014-15.

�The third girder, having a 125 metre span, was launched in September. It is planned to launch 10 girders in 2014-15,� said an official. Work on the 4.95 km-long rail-cum-road bridge is going on in full swing and Indian Railways is looking to complete it by June 2017. The entire bridge will have a total of 41 girders. The first and second girder span was launched in April and July this year, respectively. �There are a total of 39 girders of 125 metre span and two girders of 33 metre span planned for the bridge. Girder fabrication and assembly works are being done by specialised welded technology. Fabrication of eight girders has been completed and fabrication of eight more are in progress,� he said.

The launching of the third girder last month was done by pulling the three connected girders by two 1,000 metric tonne jack with high tensile steel strands.

As per the official journal of the Indian Railways, the foundation of the main bridge is 42� double-D shaped� well of 16.2X10.5 metre dimension and the �steining thickness of the well is three metre, while the diaphragm is 2.5 metre thick.�

The depth of � the foundation is 58.6 metre, except abutment and shore well where depths are 42 metre and 68.75 metre, respectively. Thickness of the well cap is 2.2 metre.� The substructure of the bridge consists of twin circular hollow piers with outer diameter of 5.3 metre and inner diameter of 3.3 metre.

The girder is having steel flooring system for railway and welded steel truss composite with concrete deck for road on top. The Indian Railways� journal claims that this type of girder for such a structure is being made in India for the first time.