Highlight:
ASTM A588 Corten Steel Plate
, Long Span Pedestrian Truss Bridge
, Prefabricated Weathering Walkway
Steel Grade: |
ASTM A588 Grade A / B Corten Weathering Steel |
Surface Finish: |
Bare Weathering, Galvanized Or Coated On Request |
Truss Type: |
Welded Steel Plate Truss, Warren Or Pratt Layout |
Deck Option: |
Anti-slip Grating, Timber Deck Or Composite Panel |
Railing System: |
Handrail With Mid Rail, Toe Board, Anti-climb Mesh Optional |
Connection: |
A325 / A490 High Strength Friction Grip Bolts |
Design Standard: |
AASHTO LRFD, AWS D1.5 |
Erection: |
Shop Trial Assembled, Single Lift Site Erection |
Customization: |
Span, Width, Railing And Deck Per Project Drawings |
ASTM A588 Corten Steel Plate Truss Bridge Prefabricated Weathering Walkway Long Span Pedestrian Crossing
ASTM A588 Corten Steel Plate Truss Bridge — a prefabricated pedestrian crossing that needs no paint, no recoating and no maintenance shutdown. The plate steel is left bare on purpose: weather builds the protective layer, not a factory.
Most pedestrian crossings in parks, plants and river corridors fail on maintenance rather than on load. A painted steel bridge needs access, scaffolding and a closure window every few years, and each repaint cycle costs more than the original coating. This design removes that line item entirely: the truss is fabricated from ASTM A588 Corten plate, erected bare, and left to weather. The oxide layer that forms is the coating.
FROM PLATE TO CROSSING
How It Is Built
1
Engineering and shop drawings
Span, walkway width, load class and railing height are fixed against the site survey, then converted into shop drawings with camber and connection details.
2
Plate fabrication
A588 plate is CNC cut, assembled in jigs and welded to AWS D1.5. Welds are UT and MT inspected before the member leaves the bay.
3
Trial assembly
The full truss is match-marked and trial assembled in the shop, so splice plates, bolt holes and node geometry are proven before shipping.
4
Site erection
Modules arrive in container loads, are lifted into position and bolted with A325 / A490 HSFG bolts. A typical single span is closed to traffic for hours, not weeks.
THE NUMBERS
Performance Data
| Item |
Specification |
| Material |
ASTM A588 Grade A / Grade B Corten steel plate, yield 345 MPa min, tensile 485 MPa min, supplied bare with mill test certificate per heat |
| Truss and span |
Warren or Pratt welded plate truss, H section or box section chords. Single span 15 to 60 m, clear walkway width 1.5 to 4 m, factory camber preset |
| Loading and standard |
Pedestrian live load 5 kPa to AASHTO LRFD, wind, seismic and thermal movement verified for site, deflection L/360 or stricter |
| Deck and railing |
Anti-slip grating, timber or composite deck. Handrail 1.1 to 1.2 m, mid rail, 100 mm max gap, toe board both sides |
| Corrosion strategy |
Bare weathering on exposed truss, galvanized or coated on splash zones, abutment steel and any buried member |
| Delivery and lead time |
Steel pallet packing in 40 HQ containers, 25 to 40 days after drawing approval |
APPLICATIONS
Where It Fits
Park and waterfront walkwayCampus and stadium footbridgePlant maintenance accessCanal and drainage crossingScenic boardwalkPort and mining gangway
SCOPE OF SUPPLY
What Ships With the Bridge
✓Match-marked truss segments, floor beams and bracing members
✓A325 / A490 bolt sets, nuts, washers and splice plates per node
✓Bearing pads, anchor assemblies and drainage details
✓Erection drawings, bolt schedule and lifting point plan
✓Mill test certificates, welding records and inspection reports
✓Optional decking, railing infill and access gates
CUSTOMIZATION
Decisions You Control
Finish
Bare weathering as standard; hot dip galvanizing or a full paint system for aggressive or coastal sites
Deck
Steel grating for drainage and slip resistance, timber for park aesthetics, composite panel for low noise
Railing
Standard mid rail and toe board, or anti-climb mesh and lockable access gates for secure sites
Geometry
Span, walkway width, camber and connection type set to the survey, not to a catalogue
Will the rust stain the abutments or the path below?
Run-off is controlled by detailing: drip edges, collection channels and sealed end plates. Where a clean finish is required, we supply a clear sealer or paint the first 1 m of the truss.
Can the bridge be painted later if the client changes their mind?
Yes. The patina must be removed by sweep blasting before any coating system is applied. We can supply the bridge with a holding primer if the client expects to paint within a year.
Is bare weathering steel suitable for coastal sites?
Not for the splash zone. On coastal projects the truss can be left bare above the splash line while bearings, end posts and all submerged or buried steel are galvanized or coated.
What is the inspection and maintenance routine?
Annual visual inspection of members, bolts and bearings. No recoating is scheduled; only bolt tension checks after the first year and drainage clearing.
FAMOUS Steel Engineering has been designing and fabricating structural steel since 2002 from Hangzhou, China. Cutting, welding, blasting, trial assembly and inspection are handled in house, so the bridge stays under one roof from plate to shipment. Trial orders are welcome.
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