Sunday 20 July 2014

Chenab Railway


     The Chenab rail bridge is going to be the highest in the world. The Chenab Bridge is an arch bridge under construction in India. Chenab Rail Bridge is 35 meters taller when compared with Eiffel Tower of France and five times the highest of Qutub Minar at 359 meter above river bed, will connect Baramulla and Srinagar to Jammu via Udhampur. Katra- Quzigund covering the entire route in about seven hours.

    The Chenab rail bridge total length will be 1315 meters. Bridge may use more than 25,000 tons of steel. The Railway have developed a helipad to move construction materials and equipment. For the 73 km passage which consist of construction of 63 km tunnels and also 7.5 km of bridges, Konkan railways is constructing 176 km of roadways to gain access to the project sites. Railways is made of already constructed 104 km of roads that is giving connectivity to remote villages which  were till now inaccessible. The estimated cost of a project is $92 million.

www.steelconstructiondetailing.com


    Thinking about the inaccessible terrain of the HimalayanMountains the bridge will get a special coat of paint with a life period of around 35 years to protect it from the tough weather conditions. The railways has designed the alerting system at the bridge which will measure wind speed at the bridge site, and will interlock train movement over the bridge automatically if there is any wind flow above  the prescribed speed.

    Konkan Railway Corporation, with working experience of building 179 largest bridges on the path breaking rail link with the Konkan region, are going to execute this specific section. Trains can be cruise at 100 kmph on the structure, which would like to have a lifespan of 120 years. Bridge would comprise an “arch- shaped” steel structure spanning 467 meter from one side of the river to the other, the reminder of the bridge across two mountains will span 1.3 km.

   The Bridge will link up Baramulla to Jammu with travel time of six and a half hours, almost half the time it presently takes. As per project engineers, the main arch is being built using two cable cranes connected on both sides of the river that can be secured on enormous steel pylons.  The Construction involves the use of concrete filled trusses. This feature is to be used the very first time in India. Concrete filled trusses have an impact on increasing stability of the arch as a steel arch is comparatively light faces stability problems against wind.


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