chenab bridge
TRANSCRIPT
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Presentation on
Conceptual Design of Chenab Bridge
Nilesh Bhosale
M.Tech.
Transportation Engg.
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Content
Basic information of bridge
The bridge site
Description of bridge
Design of bridge
Construction method
Conclusion
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Basic information of bridgeThe Client
KONKAN RAILWAY CORPORATION LTD, India
Location
Crosses Chenab river between Bakkal and Kauri,in Reasidistrict of Jammu and Kashmir
The contractorAfcons Infrastructure Ltd, Mumbai, India
The Official Project Name
Design & Construction of Special Bridges across the RiverChenab at km 50/800 on the Katra-Laole section of theUdhampur-Srinagar-Baramulla Rail Link Project
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Bridge Site
Site is located in mountainous region of Jammu Kashmir
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All the traffic in the region is running through narrow road network,
which is crowded and dangerous. The bridge is a part of the new
railway connection.
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Description of bridge
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Deck will carry two railway tracks
Superstructure is a steel girder
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Design of Bride
The design speed of the railway was set to be 100 km/h and
the design life had to be 120 years. Fatigue assessment shall
be done as per BS: 5400 Part –10.
Wind loads is derived using physical topographic models of the
site and tests in a wind tunnel laboratory.
The superstructure is a plate girder with a closed deck, where
rails are connected.
The closed deck keeps the rainwater out and provides mostly
dry environment below the deck.
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Wind tunnel test
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Construction method
Insufficient infrastructure.
Workshop, Paint shop and Electricity generation.
Cable crane (Capacity 40 tonnes)
Steel decks
Derrick crane (Capacity 100 tonnes)
Erection of arch segments
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Typical arch erection by derrick crane.
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Erection of last span and key segment by cable crane.
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Conclusion
The design of the main arch requires consideration of a number of
additional parameters, such as fatigue , stability, composite action,
etc.
The Chenab Bridge will be the biggest / the longest-span / the
highest railway arch bridge ever built in the world.
Its design offered great challenges to the design team.
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Thank you