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01

AASHTO LRFD Compliant Weather‑Resistant Box Girder Steel Bridge with Heavy Ga...

2026-08-10
  • Design Standard: Fully conforms to AASHTO LRFD (10th Edition) for reliable structural safety
  • Raw Material: ASTM A709 Grade 50W weathering high-strength steel
  • Anti-Corrosion Coating: Heavy hot-dip galvanized finish complying with ISO 1461 / ASTM A123
  • Structural Type: Box girder with high torsional stiffness & balanced load bearing performance
  • Service Lifespan: 100-year design life, minimal routine maintenance
  • Load Capacity: Supports HL-93 highway loads, single-lane bearing ≥70 tons
  • Application Scenarios: Highway bridges, railway crossings, pedestrian overpasses, industrial access bridges
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02

Modular Steel Box Girder Bridge System – Fast Installation, Easy Maintenance

2026-08-07
  • Product Name: Modular Steel Box Girder Bridge System – Fast Installation, Easy Maintenance
  • Prefabricated Construction: Factory‑manufactured modules for rapid on‑site assembly
  • Rapid Installation: Installed in days instead of months, reduce construction time
  • Minimal Traffic Disruption: Overnight installation, lower road closure impact
  • Low Maintenance: Hot‑dip galvanized high‑strength steel for long‑term durability
  • Cost Efficiency: Save site labour and overall lifecycle cost
  • Customizable: Single / multi‑cell, spans 10‑100+ metres
  • Proven Performance: Compliant with AASHTO HS20‑44 and global standards
  • Applications: Highway bridges, urban flyovers, railway viaducts, industrial access, emergency replacements
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03

Q345B/Q460C Steel Box Girder Bridge – Certified to ASTM/BS/GB Standards

2026-08-07
  • Product Name: Q345B/Q460C Steel Box Girder Bridge – Certified to ASTM/BS/GB Standards
  • Material Options: Q345B, Q460C high‑strength bridge structural steel
  • Standard Compliance: Complies with ASTM, BS 5400, GB/T 714 for international projects
  • Structural Performance: Excellent flexural and torsional stiffness for highway, railway & urban flyovers
  • Span Capability: Single spans 10‑300 metres, customised per project
  • Plate Thickness: Main plates 12‑30mm, secondary plates 10‑20mm
  • Seismic & Wind Resistance: Resists Grade 8 seismic loads, Grade 12 wind loads
  • Design Life: 100‑year service life with proper maintenance
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04

Weather-Resistant AASHTO LRFD Steel Arch Bridge for General Highway & Crossin...

2026-07-30
  • Product: Weather-resistant steel arch bridge for general highway and crossing infrastructure projects.
  • Material: ASTM A709 Grade 50W weathering steel with superior atmospheric corrosion resistance.
  • Design Standard: AASHTO LRFD Bridge Design Specifications
  • Welding Code: AWS D1.5M Bridge Welding Code
  • Corrosion Feature: Unpainted steel forms protective patina to cut coating maintenance.
  • Arch Section: Closed-box arch ribs with internal stiffeners for high rigidity and load capacity.
  • Construction: Fully prefabricated modules with bolted field connections for fast erection.
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05

Shop Welded AASHTO LRFD Steel Arch Bridge for Permanent Road Construction Works

2026-07-30
  • Product: Shop welded steel arch bridge for permanent highway & road infrastructure
  • Design Standard: AASHTO LRFD Bridge Design Specifications (US national highway bridge standard)
  • Welding Code: AWS D1.5M Bridge Welding Code (official steel bridge fabrication standard)
  • Fabrication: 100% shop welded – all critical structural welds finished in factory, zero field welding
  • Arch Structure: Closed-box arch ribs with internal stiffeners – high rigidity and heavy load capacity
  • Application: Permanent road works, highway overpasses, interchanges, grade-separated crossings
  • Installation: Fully prefabricated modules + bolted field connections – fast erection & minimal traffic disruption
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06

Large Span AASHTO LRFD Steel Arch Bridge for Urban Transport Engineering Proj...

2026-07-29
  • Product: Large span steel arch bridge – engineered for urban transport and city infrastructure projects.

  • Design Standard: AASHTO LRFD Bridge Design Specifications – the U.S. national standard for highway bridges.

  • Welding Code: AWS D1.5M Bridge Welding Code – the definitive standard for welded steel bridge fabrication.

  • Arch Section: Closed-box arch ribs with internal stiffeners – exceptional torsional rigidity and buckling resistance.

  • Span Capability: Large spans – ideal for crossing rivers, railways, roadways, and urban intersections.

  • Application: Urban expressways, ring roads, interchange viaducts, and signature city bridges.

  • Delivery: Fully prefabricated modules with bolted field connections – rapid assembly, minimal traffic disruption.

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07

Hot-dip Galvanized AASHTO LRFD Steel Arch Bridge for Coastal Traffic Infrastr...

2026-07-30
  • Product: Hot-dip galvanized steel arch bridge – professionally engineered for coastal highway and traffic infrastructure scenarios.
  • Design Standard: AASHTO LRFD Bridge Design Specifications – official national highway bridge design standard of the United States.
  • Welding Code: AWS D1.5M Bridge Welding Code – authoritative specification for welded steel bridge fabrication and quality control.
  • Corrosion Protection: Hot-dip galvanized (HDG) coating complying with ASTM A123 / AASHTO M111, delivering excellent corrosion resistance for marine and coastal harsh environments.
  • Arch Section: Closed-box arch ribs equipped with internal stiffeners, featuring outstanding torsional rigidity and heavy load-bearing capacity.
  • Delivery Mode: Fully prefabricated modular design with bolted field connections, enabling fast installation and minimal construction site disturbance.
  • Application Scenarios: Coastal highways, marine adjacent river/sea crossings, and road zones exposed to de-icing salt corrosion.
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08

Custom Fabricated AASHTO LRFD Steel Arch Bridge for Heavy-Duty Highway Infras...

2026-07-29
  • Product: Custom fabricated steel arch bridge – engineered for heavy-duty highway and infrastructure projects.

  • Design Standard: AASHTO LRFD Bridge Design Specifications – the U.S. national standard for highway bridges.

  • Welding Code: AWS D1.5M Bridge Welding Code – the definitive standard for welded steel bridge fabrication.

  • Arch Section: Closed-box arch ribs with internal stiffeners – delivering superior torsional rigidity and heavy-load capacity.

  • Material: ASTM A709 Grade 50 high-strength low-alloy steel – the standard specification for U.S. bridge steel.

  • Fabrication: 100% custom engineered – tailored to project-specific span, width, loading, and site conditions.

  • Delivery: Fully prefabricated modules with bolted field connections – no on-site welding, rapid installation.

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09

Prefabricated AASHTO LRFD Steel Arch Bridge for Highway and River Crossing Pr...

2026-07-29
  • Product: Prefabricated steel arch bridge – engineered for highway and river crossings.

  • Design Standard: AASHTO LRFD – compliant with U.S. highway bridge specifications.

  • Welding Code: AWS D1.5M – the bridge welding standard.

  • Arch Types: Tied arch / Through arch / Deck arch – tailored to site conditions.

  • Section: Closed-box arch ribs – superior torsional rigidity and load capacity.

  • Delivery: Fully prefabricated modules with bolted connections – no field welding.

  • Applications: Highways, river crossings, overpasses, and interchanges.

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10

Long Span Prefabricated Box Girder Steel Bridge for Expressway & Municipal Cr...

2026-07-28
  • Product Definition: Long-span prefabricated steel box girder bridge customized for expressway and municipal crossing infrastructure projects.
  • Super Span Capacity: Single span reaches 50m–100m+; continuous total span up to 300m+.
  • Superior Structural Performance: Closed trapezoidal box section ensures excellent structural stiffness, overall stability and uniform load distribution.
  • **Multi-Scenario Application Perfectly crosses rivers, railways, existing roadways and urban intersections with minimum site disruption.
  • Authoritative Standard Compliance: Fully engineered per AASHTO LRFD specifications and fabricated under AWS D1.5M welding code.
  • Efficient Construction: Full factory prefabricated modules support rapid on-site assembly and greatly reduce traffic interruption.
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11

Chinese Manufacturer Prefabricated Box Girder Steel Bridge for Highway Overpa...

2026-07-28
  • Professional Manufacturer: Leading Chinese steel bridge factory with 15+ years of international export experience.
  • Global Certifications: Compliant with ISO 9001, EN1090, AWS D1.5M and AASHTO LRFD design standards.
  • Core Product: Custom prefabricated box girder steel bridge for highway overpass, road interchange and infrastructure projects.
  • Strong Production Capacity: Annual output over 100,000 tons, supporting multiple large-scale bridge projects simultaneously.
  • Global Export Experience: Successfully supplied to North America, Europe, Australia and Southeast Asia with stable on-time delivery.
  • Cost-Effective Solution: Premium international standard quality with direct factory price, no middleman markup.
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12

Heavy-Duty Box Girder Steel Bridge Made of ASTM A709 High Strength Structural...

2026-07-28
  • Premium Material: Built with ASTM A709 high-strength structural steel, the standard-grade material for North American bridge engineering.
  • Multiple Steel Grades: Available in Grade 36, 50, 50W, HPS 50W, HPS 70W, with yield strength ranging from 36 ksi to 70 ksi.
  • Weather Resistance: "W" series weathering steel forms a protective patina, supporting up to 120 years of unpainted service.
  • Superior Structure: Closed trapezoidal box girder section provides excellent torsional rigidity and long-term fatigue resistance.
  • Dual Certification: Fully designed per AASHTO LRFD standards and fabricated under AWS D1.5M welding code.
  • Low Lifecycle Cost: Eliminates repeated painting and maintenance work, greatly reducing long-term operating expenses.
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