• Hangzhou FAMOUS Steel Engineering Company
    Donald Mcwayne
    Good team members always offer budget in time and answer questions with patience, great job!
  • Hangzhou FAMOUS Steel Engineering Company
    Joseph Alexander
    I am feeling fully respected when taking with Grace and she always gave the best advice. The first batch of the bridge panels got are great too. thanks all.
Contact Person : Tomy.Gao
Phone Number : +86-180 7273 5884
Whatsapp : +8618072735884

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

Place of Origin China
Brand Name FASEC
Certification AISC IBR/ABR, AWS CWI, CE (EN 1090-1 FPC)
Model Number Steel Arch Bridges
Minimum Order Quantity 100 MT
Price USD 1,000-1,500/MT
Packaging Details Sea Freight (Container/Bulk Vessel)
Delivery Time 30-60 Days
Payment Terms L/C, D/A, D/P, T/T
Supply Ability 5,000-15,000 MT/Year
Product Details
Typicaluses Roadways, Railways, Pedestrian Crossings Color Painted Or Hot-dip Galvanized
Environmentalimpact Low To Moderate, Depends On Site And Construction Practices Aestheticoptions Customizable Arch Shapes And Finishes
Spanlength Typically Ranges From 50 Meters To Over 500 Meters Typicalapplications Highways, Railways, Pedestrian Crossings
Loadtype Supports Vehicular, Rail, Pedestrian, And Sometimes Utility Loads Constructionmethod Prefabrication And On-site Assembly
Designstandards Complies With International And Local Bridge Design Codes Loadcapacity Varies By Design, Typically Up To Several Thousand Tons
Maintenancerequirements Regular Inspections, Painting, And Structural Repairs Corrosionresistance High, With Protective Coatings And Treatments
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Product Description
The Custom Fabricated AASHTO LRFD Steel Arch Bridge is a heavy-duty, shop-built superstructure for North American and global projects adopting American engineering standards. Arch ribs function as main load-bearing members, transferring loads through compression to maximize steel performance. Designed to AASHTO LRFD and welded according to AWS D1.5M, every structure is fully customized. All closed-box arch ribs are prefabricated in ISO-certified workshops and pre-assembled before shipment to guarantee fitting accuracy and avoid on-site rework.
 
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AASHTO LRFD Compliance – The U.S. Highway Standard


AASHTO LRFD is the mandatory design specification for U.S. federal highway bridges. Our design applies the Load and Resistance Factor Design method for comprehensive structural verification.
 
It adopts HL-93 live load as required by AASHTO. Steel component design follows Section 6 of AASHTO LRFD covering bending, shear, combined load effects and fatigue assessment. Seismic design follows relevant LRFD clauses. Engineers complete calculations for strength, service, fatigue and extreme event limit states to achieve a 75–100+ year design life with routine maintenance.
 

AWS D1.5M Welding Certification


All welding complies with AWS D1.5M/D1.5 Bridge Welding Code, the official standard for steel bridge fabrication jointly released by AWS and AASHTO. It imposes stricter welder qualification and inspection requirements than general structural welding standards.
 
Fracture-critical members require 100% ultrasonic testing for full penetration butt welds. All welders hold valid AWS certificates, and certified inspectors oversee production. Supplementary MT and PT testing will be implemented on related weld areas as needed.
 

Closed-Box Arch Section – Engineered for Strength


Arch ribs utilize closed-box sections with internal stiffeners, the preferred option for high-performance steel arch bridges.
 
This structure delivers outstanding torsional rigidity to withstand eccentric loads and skewed layouts. It boasts strong buckling resistance, ideal for unbraced arch designs. The favorable strength-to-weight ratio enables longer spans. Internal stiffeners prevent local buckling and optimize load distribution. Sealed inner surfaces reduce corrosion and maintenance costs, and the sleek shape fits landmark highway and river-crossing projects.
 

Specifications

 
Parameter Details
Design Standard AASHTO LRFD Bridge Design Specifications (latest edition)
Welding Code AWS D1.5M/D1.5 Bridge Welding Code (latest edition)
Arch Section Type Closed-box arch ribs with internal stiffeners
Main Steel Material ASTM A709 Grade 50 (equivalent Q355B) high-strength low-alloy steel
Optional Steel Grades ASTM A709 Grade 36, 50, 50W, HPS 50W, HPS 70W
Design Live Load HL-93 (design truck + design lane load)
Seismic Standard AASHTO LRFD seismic provisions, Category A through D
Welding Inspection 100% UT inspection on primary load-carrying welds
Fabrication Mode Fully customized design, factory prefabrication and preassembly
Field Connection High-strength bolted connection, no field welding
Anti-Corrosion Options Hot-dip galvanizing (ASTM A123), weathering steel, epoxy paint systems
Optional Deck Type Orthotropic steel deck / Composite concrete deck
Design Service Life 75 – 100+ years
 

Fabrication & Quality Assurance


All bridge modules are manufactured in ISO-certified facilities complying with AASHTO LRFD and AWS D1.5M.
 
Steel plates are sourced from qualified mills with complete Mill Test Reports (MTRs). Components are processed by CNC cutting and precision beveling. Main seams use submerged arc welding, while attachments adopt GMAW. All welders hold AWS certifications.
 
Critical full penetration welds receive 100% UT inspection; fillet welds are tested by MT on demand. Full preassembly is carried out before delivery to verify fitting. Surface blasting is conducted prior to anti-corrosion coating. Third-party inspection by SGS, Bureau Veritas or designated institutions is available. We provide a full technical dossier including design calculations, material certificates, WPS/PQR, NDT records and as-built drawings.
 

Conclusion – Custom Engineered, AASHTO Certified


The Custom Fabricated AASHTO LRFD Steel Arch Bridge integrates structural efficiency, heavy load capacity and fast construction for highway infrastructure projects. Designed and fabricated under recognized standards AASHTO LRFD and AWS D1.5M, this customized prefabricated solution supports HL-93 traffic loads and long-span requirements. Bolt-connected prefabricated segments shorten site work cycles. With proper maintenance, the bridge can operate reliably for 75–100+ years, and full technical documents are supplied for engineering approval.
Send your project parameters including span, width, site conditions and load requirements to our engineering team. We will offer AASHTO LRFD-compliant design and formal quotation within 48 hours. Engineered to AASHTO LRFD, welded to AWS D1.5M, custom-built for your infrastructure – your heavy-duty bridge solution starts here.
 
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