A W A R D SSDA 2018
NSC 21
October 18
FACT FILE
Architect: Grimshaw
Structural engineers: Arcadis WSP JV
Steelwork contractors:
Cleveland Bridge UK Ltd and Severfield
Main contractor: Costain
Client: Network Rail
and tied at the ends with trimmer beams,
which were delivered and erected as pairs.
For the installation of the decks and
canopy, the project was split into six phases
between October 2013 and May 2017.
Close co-ordination between Cleveland
Bridge and the main contractor Costain was
essential to ensure the steelwork could be
delivered efficiently to site and erected using
either cranes or Self-Propelled Modular
Transport (SPMT) systems. Each stage of
installation was carefully planned to ensure
follow-on trades were not hampered.
The size of the steel structures required
large bearings. However, installation of
the bridge bearings was complicated by
the fact there was minimal space on the
pier heads to allow both longitudinal and
rotational construction movement needed
for installation.
This was resolved by Cleveland Bridge’s
suggestion to use a tapered plate between
the bearing and bridge steelwork to allow
for bearing rotation. This was sufficient to
counterbalance the deflection caused by
concrete pouring.
Once the concrete was placed, cured
and the majority of dead load was applied,
Cleveland Bridge jacked up each bearing
and replaced the tapered plate with
a parallel plate, thereby restoring the
rotational capacity of the bearing to take the
imposed loads.
The lifting schemes for all steelwork
installations were planned by Cleveland
Bridge’s in-house project teams, and
included the innovative use of heavy
capacity scissor lifts mounted on the top
of SPMTs to solve access and installation
problems.
One of the main aspects of Cleveland
Bridge’s work was to maximise the level
of offsite fabrication and preparation to
significantly reduce the on-site programme.
As the station was operational
throughout the project, health and safety
was paramount and the overall project
was delivered within budget and ahead of
schedule, exceeding the client’s expectations.
Summing up, the judges say the
project has produced a major upgrade
to the existing station, which remained
operational throughout. Collaborative
offsite manufacture minimised disruption
during the project
The use of steel has allowed the design
team to create open concourse spaces
beneath the tracks and elegant curves to the
canopy structures above. The project is a
great example of ‘designing for construction’.
© Rick Roxburgh
© Rick Roxburgh
/Design_for_steel_bridge_construction#Transportation
/Design_for_steel_bridge_construction#Erection_using_cranes
/Design_for_steel_bridge_construction#Specialist_transport
/Bridge_articulation_and_bearing_specification#Bearings
/The_case_for_steel#Offsite_fabrication_for_precision_parts
/Health_and_safety
/Design
/Design_for_steel_bridge_construction