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Case Study—56m x 3m Warren Truss Railway Bridge, Tamworth
Client: Bellway Homes / Amey
Location: Anker Valley, Tamworth
Length: 56.0m
Width: 3.0m
Form: Cambered Warren Truss with overhead bracing
Project Description
This bridge provided a crucial infrastructure link to a Bellway
homes site in Tamworth. Without the bridge the housebuilder was
unable to release his properties for sale and CTS were
approached when a particularly fast-track service was needed.
CTS carried out the design in-house using our experience of
similar structures to create a bridge some 60% lighter than the
consultant’s scheme design that we had first been presented
with. This benefitted both the build time and the project cost.
A Tuned-Mass-Damper (TMD) is used under the deck at the midspan of the bridge. This limits vibrations and provides pedestrian
comfort in the long span structure. TMDs for bridges are typically
prohibitively expensive and are fabricated outside the UK – by
bringing the TMD detail design and fabrication in-house we were
able to make this technology affordable and deliverable within the
project timescale.
The bridge crosses a Network Rail line and was subject to a
Category III design procedure; CTS’ Chartered Engineers worked
closely with 3rd party checkers Amey, the Technical Approval
Authority at Staffordshire County Council and Client Bellway to
ensure a smooth approval process appropriate to the fast-paced
nature of the project.
Installation was planned and carried out by CTS during a night
time rail closure using one of the largest cranes in Europe.
Happy homebuyers moved in on time - just days after the bridge
completion.
For more information on Case Study—56m x 3m Warren Truss Railway Bridge, Tamworth talk to CTS Bridges
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