ASTM A588 Corten Steel Plate Truss Bridge – Prefabricated Weathering Pedestrian Crossing

Most pedestrian crossings in parks, plants, and river corridors fail on maintenance rather than load. A painted steel bridge requires access, scaffolding, and a closure window every few years, with each repaint cycle costing more than the original coating.

This design removes that line item entirely. The truss is fabricated from ASTM A588 Corten steel plate, erected bare, and left to weather. The dense oxide layer (patina) that forms is the coating. It needs no paint, no recoating, and no maintenance shutdown.

Technical Specifications

How It Is Built (Workflow)

1. Engineering & Shop Drawings: Span, 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. 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. Typical single span erection takes hours, not weeks.

Scope of Supply

• 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/coastal sites.

• Deck: Steel grating (drainage/slip resistance), timber (park aesthetics), or composite panel (low noise).

• Railing: Standard mid-rail/toe board, or anti-climb mesh and lockable access gates.

• Geometry: Span, walkway width, camber, and connection type set to your survey, not a catalogue.

Buyer FAQ

Q: Will the rust stain the abutments or the path below?
A: 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.

Q: Can the bridge be painted later if the client changes their mind?
A: 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.

Q: Is bare weathering steel suitable for coastal sites?
A: 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/buried steel are galvanized or coated.

Q: What is the inspection and maintenance routine?
A: Annual visual inspection of members, bolts, and bearings. No recoating is scheduled; only bolt tension checks after the first year and drainage clearing.

About Our Company

Hangzhou FAMOUS Steel Engineering Co., Ltd. was established in 2002. We are an integrated structural steel manufacturer and global exporter, providing one-stop services from design and fabrication to surface treatment and export delivery.

Certified to ISO 9001 and CE (EN 1090), we operate complete in-house lines for Corten steel plate cutting, jig assembly, welding, and trial pre-assembly. 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.

🌐 Websites: www.famoussteel.com | www.steelfabricat.com | www.structural-steelbuilding.com

Get Your Custom Bridge Solution

Send us your span, walkway width, design load, deck type, and site environment. We will return a preliminary truss layout, material proposal, and competitive price for your review.

Contact us today to start your next pedestrian bridge project.