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ARMTEC.COM
Bridge Materials /
BRIDGE PLANK
TECHNICAL GUIDE
AN EASY AND
ECONOMICAL SOLUTION
FOR CONSTRUCTING
AND RE-DECKING BRIDGES
Strength
Lightweight
Fast and easy installation
Low maintenance
Eco-friendly
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BRIDGE PLANK
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Bridge Plank is an easy and economical solution for both constructing and
re-decking bridges. It is easily bolted or welded into place to form a continuous
bridge deck. Bridge Plank can restore strength to an old structure, stiffen bridges
laterally and eliminate rattles. Available standard sizes are 152mm x 51mm (6" x
2"), 229mm x 76mm (9" x 3") and 305mm x 110mm (12" x 4-1/3").
Strength
Restores strength to old structures,
stiffens bridge laterally and reduces
rattle
Lightweight
High strength-to-weight ratio
Fast and easy installation
No specialized tools or equipment
needed
TYPICAL APPLICATIONS
•Decking for new bridges and overpasses
•Rehabilitation of provincial and
municipal bridges
•Permanent formwork for concrete
bathtub girders
•Permanent formwork for concrete floors
Low maintenance
Durable, galvanized, requires no special
maintenance
specifications
152mm x 51mm engineering details and design data
Maximum Length
Material
Coating
Without splices—12.2m (galvanized
or Aluminized Type 2), or 10.1m (hot
dip galvanized)
Galvanized steel per ASTM A929 and
Aluminized Type 2 steel per ASTM
A463 T2 100 (2.67 and 3.43mm), and
black steel, and hot dip galvanized
steel (4.55mm), per ASTM A1011
Galvanized or Aluminized Type 2
steel (2.67 and 3.43mm), and hot dip
galvanized (4.55mm) per ASTM A123
except that the zinc coating shall
be 610g/m² total both sides
Minimum yield strength of 250MPa
Section Properties
Maximum Net Span*
Thickness
Section
Modulus
Moment
of Inertia
Approximate
Weights
Light Duty
Medium Duty
Heavy Duty
mm
mm3/m
mm4/m
kg/m2
mm
mm
mm
2.67
57.10
1572
30.27
635
533
508
3.43
72.15
2002
39.06
711
610
559
4.55
93.12
2622
52.24
813
686
610
NOTE
Average weight of surfacing asphalt, based on 51mm depth over corrugations at the
centre sloping to 25mm at the edge, is 138kg/m² for 152mm x 51mm Bridge Plank.
*Refer to AISI Handbook of Steel Drainage and
Construction Product’s chapter on Steel Bridge Flooring
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BRIDGE PLANK
229mm x 76mm engineering details and design data
19mm
22mm
98mm
48
mm
Maximum Length
Material
Coating
Without splices—5.8m
Black and hot dip galvanized steel
per ASTM A1011 (4.17, 4.55 and
5.31mm) or per ASTM A907 (6.07,
7.95 and 9.53mm)
Hot dip galvanized per ASTM A123,
except that the zinc coating shall be
610g/m² total both sides
Minimum yield strength of 276MPa
Section Properties
Maximum Net Span*
Thickness
Section
Modulus
Moment
of Inertia
Approximate
Weights
Light Duty
Medium Duty
Heavy Duty
mm
mm3/m
mm4/m
kg/m2
mm
mm
mm
4.17
156.24
6,391
51.27
1,219
1,016
889
4.55
170.59
6,992
56.15
1,321
1,067
940
5.31
197.85
8,157
65.91
1,473
1,194
1,016
6.07
223.66
9,341
74.70
1,600
1,295
1,118
7.95
285.81
11,950
96.67
1,956
1,549
1,321
9.53
337.42
14,108
116.20
2,261
1,778
1,499
NOTE
Average weight of surfacing asphalt, based on 51mm depth over corrugations at the
centre sloping to 25mm at the edge, is 165kg/m² for 229mm x 76mm Bridge Plank.
*Refer to AISI Handbook of Steel Drainage and
Construction Product’s chapter on Steel Bridge Flooring
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BRIDGE PLANK
305mm x 108mm engineering details and design data
Maximum Length
Without splices—5.8m
Material
Black steel per ASTM A1011
Minimum yield strength of 310MPa
Coating
Hot dip galvanized per ASTM A123,
except that the zinc coating shall be
610g/m² total both sides
Section Properties
Maximum Net Span*
Thickness
Section
Modulus
Moment
of Inertia
Approximate
Weights
Light Duty
Medium Duty
Heavy Duty
mm
mm3/m
mm4/m
kg/m2
mm
mm
mm
3.78
196.24
11,771
46.82
1,676
1,346
1,143
4.17
215.59
12,946
51.51
1,803
1,448
1,219
4.55
233.33
14,120
56.15
1,905
1,524
1,295
NOTE
Average weight of surfacing asphalt, based on 51mm depth over corrugations at the
centre sloping to 25mm at the edge, is 200kg/m² for 305mm x 108mm Bridge Plank.
*Refer to AISI Handbook of Steel Drainage and
Construction Product’s chapter on Steel Bridge Flooring
Installation
NOTE
Bridge Plank is delivered in convenient lengths according to your bridge width
and includes the planks required to form the deck. Weld holes may be factorypunched to fit the stringer spacing of the bridge. Wood stringers with lag screws
or similar fasteners have also been used successfully.
All welding is done from the top of
the planks—an important safety factor
on any bridge
FINISHING AND PAVING
Step One
Finish
Before paving, the Bridge Plank deck
should be cleared of debris. A light
asphaltic primer coat is recommended
even if an asphalt emulsion type
system is planned. This ensures a good
bond between the pavement and the
steel deck. Two courses of asphalt
pavement completes the job.
The first course fills the corrugations.
Side dams, to retain the pavement
at the outer edges of the bridge,
can be supplied and attached to
individual planks or shipped as separate
pieces in 3.7m lengths for attachment
after the planks are in place.
Step Two
As soon as the first course is
compacted, the traffic surface can
be applied. This compacted wearing
course is usually about 51mm thick
over the corrugations at the center
of the bridge, sloping to a 25mm
thickness at the edges.
Drawings and product details are for information
and/or illustrative purposes only and may vary. Please
contact your Armtec representative for the most
current product information.
Armtec is a leading Canadian infrastructure and construction materials company combining creative
engineered solutions, relevant advice, dedicated people, proven products and a national presence with
a local focus on exceptional customer service.
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PROD-C01-G04_TG-2011-11-E
Armtec / Products and Services / Bridge Materials / Bridge Plank / Technical Guide | 2011–11