Page 31 - CONSTRUCTION VISION July August 2017 issue

PROJECT

‘‘
world's highest,,
Taller than the

Eiffel Tower,
this bridge will be the

hat if a bridge can be built higher than the Eiffel Tower? - The bridge is being constructed on a transition curve, having both
Well, soon this will become a reality once this arch- horizontal and vertical curves.
Wshaped steel bridge gets completed over the Himalayas in
2016. The bridge, being built over the Chenab River, will beat a - The project started construction in 2002 and stopped in 2008.
railway bridge located in China that holds the recognition of being the Construction has resumed two years ago and shall be completed by
world's highest bridge. 2016.
Bridge Height Details - The world's highest bridge will reduce travel time between Baramulla
and Jammu in half the time it actually takes, six hours.
The amazing bridge is expected to be 359 meters high, more than 80
meters higher than the actual record holder. The Indian structure will - The massive structure is expected to have a lifespan of 120 years.
have a length of 1,315 meters and will have over 25,000 tons of
structural steel. It is important to highlight that in India there are no - Design and construction of the bridge was awarded to a joint venture
building code provisions for such a massive structure. of Afcons Infrastructure, Ultra Construction & Engineering Company of
South Korea and VSL India.
World's Highest Bridge Facts
- The construction methodology used will minimize the number of
The construction costs of this bridge are estimated at $92 million and
bearings required, reducing the maintenance requirements.
the bridge features the following:
- The 'sky-bridge', as it is often called, is being constructed on the
- The bridge will be built using a two-ribbed steel arch flanked by
Chenab River upstream of the Salai dam between the villages of
concrete lanes.
Bakkal and Kari.
- The chords of the trusses are steel boxes filled with concrete.
- At present, the world's tallest rail bridgeis on France's Tarn River,
- The concrete used in the steel boxes will be used to control wind with its tallest pillar rising 340 meters.
induced forces on the bridge.
- The design of the 1.3-km-long bridge is divided into three segments:
- The bridge is being erected using two cable cranes, the largest in a 467-meter steel arch in the center, a 185-meter approach deck from
the world. the Bakkal end, and a 650-meter approach deck from the Kauri end.

- The design incorporates seismic provisions and is design to - The paint being used in the bridge is manufactured in Japan and is
withstand winds up to 260 kilometers per hour. expected to last at least 35 years. Normally the paint used in this type
of bridges will last only five years.
- Overall, the bridge will span 11 concrete and five steel pillars
- An anemometer has been installed at the world's highest bridge site
- Structural design was completed in order to prevent damages by which will measure wind speed at the bridge site and will interlock
terrorist attacks train movement over the bridge automatically if there is any wind
above the prescribed speed.
- To enhance safety and security, the bridge will be made of 63
millimetre-thick special blast-proof steel.

JULY-AUGUST 2017 CONSTRUCTION VISION 29