Industrial ASTM A588 Weathering Steel Bridge Custom Corten Truss Fabrication Pre Assembled

Industrial ASTM A588 Weathering Steel Truss Bridge

This industrial weathering steel bridge is custom fabricated from ASTM A588 corten steel plate and delivered as a bolted truss structure for road, plant and pedestrian crossings. Each span is trial assembled in our own workshop before shipment, so bolt holes, camber and member lengths are verified while the steel is still on our floor. The result is a prefabricated steel bridge that erects quickly on site and develops a stable brown patina instead of needing routine repainting.

Technical Specifications

Key Features

• Weathering steel structure - ASTM A588 corten steel plate develops a dense protective patina, cutting maintenance cost over the whole service life.
• Custom truss fabrication - Warren, Pratt, Howe, through and deck truss layouts fabricated to project drawings, not to a fixed catalogue size.
• Factory pre-assembly - every span is trial assembled and match marked, so site bolting is fast and free of reaming.
• Long span capability - modular spans from 12 m to 60 m, with camber pre-set for dead load and deflection control.
• Multiple deck options - steel plate, open grating, timber or concrete composite deck to suit traffic and weight limits.

Material and Corrosion Performance

The main girders and chords are rolled from ASTM A588 Grade A weathering steel plate, with ASTM A847 weathering tube used for bracing where specified. The atmospheric corrosion resistance index of this steel is above 6.0 according to ASTM G101, roughly four times that of ordinary carbon steel. Under normal wet and dry cycling the surface forms a tight oxide layer within 18 to 36 months, which then slows further corrosion. For coastal or permanently damp sites we can supply an ISO 12944 C4 or C5 paint system instead of the bare patina finish.

Custom Fabrication and Pre-Assembly

Plates are cut on CNC plasma and laser tables, assembled in jigs with controlled camber, and welded under qualified WPS with traceability by member number. Gusset plates, bracing, railing posts and bearing assemblies are fitted before dispatch.

• 100 percent trial assembly of each span with full fit-up check
• Hole alignment, camber and overall dimension report issued with the inspection package
• Members and bolts numbered to match the erection drawings
• Lifting points and lifting plan prepared for site handling

Quality Control and Documentation

• Steel mill certificates EN 10204 3.1 for every heat number
• Weld inspection by UT, RT or MT as required by the contract
• Third party inspection by SGS, BV or TUV on request
• Document set: material certificates, WPS and PQR, welder certificates, dimensional report, trial assembly report, loading photographs

Applications

• Highway and rural road bridges, industrial plant and mine haul crossings
• Pedestrian, landscape, park and trail bridges
• Railway and light rail structures, pipe and cable support crossings
• Temporary access and logistics bridges, replacement spans for aging structures
• Bailey type and modular steel truss bridge projects requiring fast delivery

Packing, Shipping and Site Support

Members are bundled on steel frames with contact point protection and loaded into 40HQ containers or shipped break bulk. Bolts, bearings and erection accessories are packed separately by span number. Erection drawings, bolt schedule and lifting plan accompany every shipment, and remote technical support is available while your team assembles the bridge.

About Our Company

Hangzhou FAMOUS Steel Engineering Co., Ltd. has been designing and fabricating structural steel since 2002. With more than 1,200 employees, we run complete in-house lines for corten steel plate cutting, jig assembly, welding and trial pre-assembly, and we supply weathering steel bridges, steel buildings and heavy fabricated structures to industrial, municipal and mining projects worldwide.

• Full process control - engineering, detailing, cutting, welding, trial assembly, surface treatment and export packing all completed in our own workshops.
• Experienced engineering team - truss layout, member sizing and shop drawings produced from your span, load and site conditions.
• Proven export record - export documentation, container loading plans and site erection drawings prepared for overseas projects.
• Project support - third party inspection, lifting plans and remote technical guidance during site assembly.

Ordering Information

Send us the span, bridge width, design load, deck type and site environment. We will return a preliminary truss layout, material proposal and price for your review, then issue shop drawings for approval before fabrication starts. Custom corten steel truss fabrication for industrial, municipal and mining projects is our standard work.