All change at Waterloo
Part of the project to revamp the former Eurostar terminal at Waterloo station, a
roof structure, requiring a high degree of complex design work, will bridge the
gap between two existing structures to form a new covered concourse.
Once the terminus for Eurostar
services to Paris and Brussels,
the 1990s-built Waterloo
International Terminal (WIT),
located at the western end of Waterloo
mainline station, is being revamped
to accept domestic train services and
accommodate shops, bars and restaurants.
Disused since London’s Eurostar
terminus was moved to St Pancras
International in 2007, the structure is in
the midst of a major refurbishment, which
includes preparing the five platforms to
increase the number of train services into
Waterloo.
A two-storey shopping and leisure
complex will be situated in the former
Eurostar arrivals and departure lounges,
beneath the platforms.
Improving access around the Waterloo
station concourse is also ongoing and
this work includes the construction of a
steel roof that will infill a gap between the
original Victorian-built Waterloo station
canopy and the adjacent curved and glazed
roof of the WIT structure.
“Previously there was no need for this
infill roof as passengers would have entered
the Eurostar terminal at a lower level
and a now dismantled canopy sheltered
them,” explains Wessex Capacity Alliance
Engineering Manager, Chris Kitching.
“We have now installed a new composite
steel bridge, which will allow passengers to
access the revamped terminal at platform
level and so a new high-level infill roof is
needed.”
Bourne Steel Divisional Manager Andy
Davies adds: “In simple terms, the infill
roof is a rectangular steel-framed box,
tapered along one side to accommodate the
shape of the WIT structure and over-sailing
the two station roofs.”
The new roof structure is 52m-long ×
18m-wide × 26m-high at the western end
and 21m-high at the eastern end and is
supported at either end by steel-framed and
glazed gable walls.
The eastern gable is supported on
Waterloo’s 1840s-built masonry walls,
but apart from this, the new structure is
completely self-supporting. It sits within
millimetres of both the WIT roof and the
Transport
Work gets under
way on the new roof
structure
FACT FILE
Waterloo station
redevelopment,
London
Main client, Architect,
Structural engineer &
Main contractor:
Wessex Capacity
Alliance (Mott
MacDonald, Skanska,
AECOM, Colas, Network
Rail Joint Venture)
Steelwork contractor:
Bourne Steel
Steel tonnage: 300t
16 NSC
January 19
Visualisation
showing how the
new roof infills a
gap between two
existing structures
/Construction
/Bridges
/Braced_frames