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28/03/23 06:38 AM IST

Chenab bridge

In News
  • The world’s highest railway bridge being built by Indian Railways is expected to be ready in the coming months.
Chenab Bridge
  • The Chenab Bridge is 35 meters taller than the Eiffel Tower in Paris, making it the world’s highest rail bridge.
  • The 1.3 km long bridge has a design speed of 100 kmph for trains and a lifespan of 120 years.
  • The 111 km stretch from Katra to Banihal is essential, and the 1.3 km long Chenab Bridge is a crucial part of this stretch.
  • Once completed, the entire USBRL Railway project will provide all-weather connectivity and join Jammu and Kashmir to the rest of India.
Design
  • The Chenab Bridge would be designed as a large span single steel arch brdh with approach viaducts on arthur sde.
  • The chords of the trusses are sealed steel boxes, internally stiffened and filled with concrete to assist in controlling wind-induced forces on the bridge.
  • Another advantage of concrete filling is that internal painting will not be required.
  • The number of bearings has been minimized, particularly on the approach viaduct, through the use of continuous construction.
  • This is advantageous, as it reduces the maintenance and inspection efforts, and improves the riding quality.
  • The viaduct piers are of concrete, while the piers near the arch are steel.
Unique Features
  • Bridge designed to withstand high wind speed up to 266 Km/Hour.
  • Bridge designed for blast load in consultation with DRDO for the first time in India.
  • Bridge designed to bear earthquake forces of highest intensity zone-V in India.
  • First time on Indian Railways, Phased Array Ultrasonic Testing machine used for testing of welds.
  • First time on Indian Railways, National Accreditation Board for Testing and Calibration Laboratories (NABL) accredited lab established at site for weld testing.
Source- Times of India

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