Hanson Precast Products
Omnia Bridge Deck
Featuring the unique Hanson QuickLift system
Omnia Bridge Deck
Featuring the unique Hanson QuickLift system
Plank cross section
85
85
130
m
25m
Design
cover
Approx
47-50mm
12mm
35mm
Cover
35
60mm
Depth
of plank
35
290mm
+0
300mm -3
The Hanson Service
Above: Hulme Bridge,
Manchester
Omnia Bridge Deck Heritage
Hanson has been the market
leader in precast bridge decking
technology for over 10 years.
We were instrumental in the
compilation of the Department of
Transport model specification for
precast concrete bridge decking.
Since that time our product has
been used on many major bridge
projects throughout the UK,
providing us with a wealth of
experience in this sector.
Our Omnia Bridge Deck system
is a highly efficient, cost effective
and practical means of providing
permanent formwork to deck slabs
of bridges, especially where these
span over live roads, rail tracks
and rivers.
2 | Hanson Omnia Bridge Deck
Design
Hanson Precast Products provide
fully detailed layout drawings that
give you a clear indication
of individual unit locations,
minimising fixing times on site.
The planks are primarily designed
to cope with temporary condition
loads. However, designers can use
the reinforcement provided as
part of the permanent design.
Additional reinforcement can
be installed in the plank saving
reinforcement in the in situ portion.
Prime Dimension
Tolerance on length
The units are designed to carry
construction loading and limit
deflections to span/400 and crack
widths to 0.1mm in the temporary
case. Wherever possible, the
correct size of lattice girder will be
selected to provide a chair for the
top mat of reinforcement. These
are aligned during manufacture to
ensure ease of fixing longitudinal
reinforcement over the Omnia
Bridge Deck planks.
Manufacture
Omnia Bridge Deck is
manufactured at our Somercotes
plant in accordance with British
Tolerance on given
Standards
and the 5mm
‘Specification
dimensions shall be +
–
for
Highway
Works’ using
unless
shown otherwise
C50 concrete.
Planks are 300mm wide
x 60mm deep. Special widths
can be manufactured up to
600mm wide for use as infill
panels at transverse beams or
abutments. Omnia Bridge Deck
can be manufactured in lengths
of up to 3.80m and, depending on
the overall slab depth, can be used
for clear spans of 3.72m with
a 40mm bearing at each end.
+
–
A typical cross section of a plank shows the
arrangement of the lattice girder and the
reinforcement within the precast concrete
(see illustration).
Tolerance on given dimensions shall
be ± 5mm unless shown otherwise.
60mm depth of plank does not include for
the exposed aggregate finish, which could
add up to 10mm to the overall depth.
10mm
The upper surface of the Omnia
planks is water washed during
manufacture to expose the
60mm depth of plank does not
aggregate,
which, together
include for the exposed aggregate
with
projecting
lattice,
finish the
which
could add up
to 10mm
to the overall depth horizontal shear
accommodates
stress at the precast/in situ
interface. The manufacturing
tolerances and soffit finish
(Type F2) are as specified/defined
in BS 5400 and the Department
of Transports ‘Specification for
Highway Works’.
Hanson Omnia Bridge Deck | 3
Omnia Bridge Deck Range
1
2
Omnia plank depth
Overall depth including lattice
Type 2 Deck
For a 225mm deep overall slab
60mm
115mm
Omnia plank depth
Overall depth including lattice
Cover to reinforcement
35mm
Cover to reinforcement
Lattice depth
80mm
Lattice depth
Allowance for in situ reinforcement and cover 85mm
60mm
140mm
35mm
105mm
Allowance for in situ reinforcement and cover 85mm
We are proud of our Omnia Bridge Deck system, which has been specifically
recognised by the Department of Transport through our involvement with the
model specification for precast concrete bridge decking.
The QuickBuild system is available
in 5 standard lattice sizes, which
facilitate deck depths of up to
300mm, enabling spans up to
3.8m. The graph opposite shows
the maximum clear span for our
range of standard Omnia
lattice designs.
A dedicated team of engineers
and designers are also on hand at
our Somercotes plant to advise on
all your requirements including
those outside the scope of our
standard range. The long-standing
heritage of our Omnia Bridge
Deck means that we have dealt
with most types of enquires, so
rest assured we can help provide
an efficient solution.
4 | Hanson Omnia Bridge Deck
4
Type 3 Deck
For a 250mm deep overall slab
Type 4 Deck
For a 275mm deep overall slab
Omnia plank depth
60mm
Overall depth including lattice
Omnia plank depth
165mm
Cover to reinforcement
Cover to reinforcement
130mm
Allowance for in situ reinforcement and cover 85mm
190mm
35mm
Lattice depth
155mm
Allowance for in situ reinforcement and cover 85mm
Hanson Omnia Bridge Deck max clear span for slabs of overall depth
Maximum Clear Span (m)
2.200
2.400
2.600
2.800
3.000
3.200
Type 5 – 300mm
3.600
3.200
Type 2 – 225mm
215mm
Cover to reinforcement
Lattice depth
35mm
180mm
Allowance for in situ reinforcement and cover 85mm
Bituminised
Compressible Strip
3.600
Type 3 – 250mm
Overall depth including lattice
60mm
To prevent the loss of grout through flanges
of steel/unit joints we would recommend the
following products are used in conjunction
with the Omnia Bridge Deck.
3.800
3.650
Type 4 – 275mm
Type 1 – 200mm
3.400
Omnia plank depth
Special Deck
Various depth overall slab made
bespoke to your specifications.
Ancillary Items
Hanson Omnia Bridge Deck Max Clear Span for Slabs of Overall Depth
2.000
5
Type 5 Deck
For a 300mm deep overall slab
60mm
Overall depth including lattice
35mm
Lattice depth
Overall depth of slab (mm)
Type 1 Deck
For a 200mm deep overall slab
3
We would recommend that flanges of steel
supporting Omnia Bridge Deck planks are
treated prior to placing units with a 12mm
deep bituminised compressible strip.
2.800
Bituminised Compressible Strip
Joints will need to be addressed to prevent grout
loss during concreting. Various methods can be
used, but we would suggest a bead of sealant or
use of the bituminised strip is used along all joints.
Sealant and strips suited to this purpose are
available from Hanson directly.
2.250
For more detailed downloadable section drawings please see our website
hanson-precast.co.uk/bridgedeck
Silicone Sealant
Hanson Omnia Bridge Deck | 6
Hanson Omnia Bridge Deck | 7
2
1
3
4
Enhanced Options
To eliminate in situ works, and to further
minimise erection times, we offer a range of
enhanced options including non-standard widths,
splayed cuts, holes and small bay end make-up
pieces. Each individual unit will be uniquely
referenced and highlighted on our drawings.
Fill piece
Pavix® Enhanced Soffit Protection
During the manufacturing
process we can offer a Pavix®
treatment which penetrates
deeply into the structure to seal
voids and block the ingress of
moisture whilst allowing the
material to breathe.
The protectant seals hairline
cracks up to 1.4mm wide
protecting the soffits of the
Omnia Bridge Deck surfaces
from damage caused by water
ingress, freeze-thaw and weed
growth. It also helps to keep the
surface free from dirt and stains.
Chem-Crete Pavix® meets the
requirements of BD43/03
and has a worldwide track
record of success.
Bridge Deck QuickLift System
Maximising your
efficiency on site
We understand that you are
looking for the most efficient
fixing solution for your project.
The hire of our fully certified
QuickLift frame, available in 2
sizes (4 or 8 units lift capacity)
minimises installation time.
Cut out
For further information call or email:
01773 600 211
[email protected]
The problem
The consequences
Chains provided
can be set at one or
a range of heights
to aid installation.
Splayed cut
QuickLift frame
available in 4 or 8
unit capacity.
Hanson Omnia Bridge Deck | 5
8 | Hanson Omnia Bridge Deck
The Hanson QuickLift System has been developed to ensure handling
times are minimised, providing you with increased output rates of
up to 20% against other alternative methods.
1 Omnia Bridge Deck planks are
generally delivered on articulated
vehicles, palleted in batches of 24
planks (6 deep x 4 wide) and will
be delivered in a previously agreed
sequence and time/date.
The Omnia Bridge Deck system
can be lifted off the wagon using
a traditional forklift truck with
pallets being placed adjacent
to the area to be fixed.
2 The QuickLift frame should be
attached to the crane. If the 8-unit
frame is to be used, we would
suggest two pallets are offloaded
next to each other, further
minimising lifting times. The chain
attachments should be released
and connected to the Omnia
lattice with the hooks positioned
under the diagonal section of steel.
3
The QuickBuild panels should
be lifted in sets of 4, 1200mm
wide approximately (8 planks will
be 2400mm wide approximately).
4 When placing the units they
will need to be butted together
to close any gaps, minimising
the risk of grout loss. It is
recommended that a method of
setting adjacent ‘sets’ is adopted
so that each set is placed at
1200mm dimensions. This will
keep the layout of the planks
close to that on the drawing, the
amount of gaps to a minimum and
reduce the risk of any cutting or
make-ups due to creep.
For further information please go to:
hanson-precast.co.uk/bridgedeck
Hanson Omnia Bridge Deck | 9
Hanson Cement
Our companies and products
Hanson UK is the leading supplier of heavy building materials to the UK construction industry.
We are split into three business lines – Hanson Cement, Hanson Building Products and Hanson
Quarry Products. Hanson UK is owned by the HeidelbergCement Group, which employs over 53,000
people and operates worldwide. Hanson UK employs around 4,200 people across over 300 sites.
For detailed information on all areas of Hanson and our products visit: hanson.com/uk
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