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Focused on small- and medium-span (20–50 meters) highway bridges, railway bridges, and pedestrian overpasses, providing welded I-girder sections, supporting both non-composite and composite deck modes, compatible with precast concrete slabs or cast-in-place decks.

Core Advantages

Using web openings or corrugated webs to reduce steel usage, variable-height beams to optimize material distribution; the combination of shear stud groups and precast concrete slabs shortens on-site construction time to one-third of traditional solutions.

Global Compliance

Strictly meets mainstream international standards such as European standards (EN 1993-1-5 for post-buckling strength of plates and EN 1994 for composite beam shear connections), American standards (AASHTO LRFD for mixed-beam flange width-to-thickness ratio and AWS D1.5 for fillet welds), and Australian standards (AS 5100.4 for I-girder web height-to-thickness ratio and AS 1554 for welding).

Service Assurance

Provides full-cycle technical support from web stiffener spacing optimization, composite beam shear connector slip checks, steel beam stability verification during the construction phase (before concrete hardening), to on-site joint design and fatigue detail management.

Premium welded steel plate girder bridge, featured with reasonable stress distribution, convenient construction and long service life, widely applied in municipal roads, highway crossings and small & medium span bridge projects.

High-strength integrated steel plate girder bridge, optimized stress structure, convenient prefabricated construction, strong weather resistance and long-term stable operation for highway and municipal traffic infrastructure.

Our steel plate girder bridge is a hot-rolled & welded steel girder structure specially developed for highway railway crossing engineering. It integrates large-span bearing capacity, stable structural performance and fast construction efficiency, fully adapts to complex river valley, mountain road and urban traffic bridge projects, meets international mainstream design specifications, and provides safe and durable long-span bridge solutions worldwide.

Product Positioning:Focused on small- and medium-span (20–50 meters) highway bridges, railway bridges, and pedestrian bridges, offering welded I-girder sections, supporting both non-composite and composite deck configurations, compatible with prefabricated concrete slabs or cast-in-place decks.

Core Advantages:Utilizes web openings or corrugated webs to reduce steel consumption, variable-height beams to optimize material distribution; shear stud groups in combination with prefabricated concrete slabs shorten on-site construction time to one-third of conventional methods.

Global Compliance:Strictly complies with major international standards, including European standards (EN 1993-1-5 for post-buckling strength of plates and EN 1994 for composite beam shear connections), American standards (AASHTO LRFD for flange width-to-thickness ratio of composite beams and AWS D1.5 for fillet welds), and Australian standards (AS 5100.4 for I-girder web height-to-thickness ratio and AS 1554 for welding).

Service Guarantee:Provides full-cycle technical support, from optimizing the spacing of web stiffeners, verifying the slip of composite beam shear connectors, checking steel beam stability during construction (prior to concrete hardening), to designing on-site splicing joints and managing fatigue details.

Design Standards: AASHTO LRFD 2020 (American Association of State Highway and Transportation Officials), BS EN 1993 Eurocode 3 (European Committee for Standardization), AS 5100:2017 (Australian Bridge Design Code)

Application: Highway overpass, municipal road crossing, industrial passage, temporary heavy-duty diversion, straight-span infrastructure projects

Structural Feature: Factory full-welded segments, bolted on-site assembly, no field welding, no temporary falsework

Span & Width: Single module span up to 40m, multi-girder combined width over 20m

Material: ASTM A709/A709M (ASTM International) structural steel (Grade 50/50W)

Durability: Professional anti-corrosion treatment, 100-year design service life

Product Positioning:Targeting small to medium-span bridge projects, providing cost-effective steel bridge solutions with welded or bolted I-shaped steel plate girders as the main beams.

Core Advantages:Simple structure, easy manufacturing, lightweight, low cost, and suitable for prefabricated assembly construction, significantly shortening on-site construction cycles.

Application Scenarios:Widely used for small to medium-span highway and railway bridges, river-crossing bridges, line-crossing bridges, pedestrian overpasses, industrial park passages, and temporary emergency bridges.

Components:The I-shaped load-bearing main beam is composed of the top flange plate, bottom flange plate, web plate, longitudinal stiffeners, transverse stiffeners, and bearing stiffeners.

• Rapid Deployment: Prefabricated modular components designed for swift on-site assembly, minimizing traffic disruption and construction timelines.
• High-Load Capacity: Optimized structural integrity capable of withstanding heavy vehicular loads (AASHTO HL-93) and extreme environmental conditions.
• Global Compliance: Fully certified fabrication adhering to American (ASTM/AASHTO), European (EN), and Australian (AS) engineering standards.
• Corrosion Resistance: Advanced surface treatment options, including hot-dip galvanizing and specialized coating systems for extended service life.

Product Positioning:Specifically designed to provide economical and efficient steel plate girder solutions for medium to short-span highways, urban viaducts, and railway bridges, covering a span range of 20 to 60 meters, accommodating both composite and non-composite girder structures.

Core Advantages:Utilizes factory-welded I-shaped steel sections, featuring a high web thickness-to-height ratio and light self-weight; can be combined with precast concrete bridge decks to form composite girders, improving load-bearing capacity by 30%–50%, with cost-effectiveness superior to steel box girders and truss bridges.

Global Compliance:Strictly meets mainstream international standards, including European standards (EN 1993-1-5 plate buckling and EN 1994 composite structures), American standards (AASHTO LRFD I-girder design and AWS D1.5 welding), and Australian standards (AS 5100.4 steel girder rules and AS 1554 welding).

Service Assurance:Provides full-cycle technical support from web stiffener optimization, flange width-to-thickness ratio verification, shear buckling analysis, to on-site splicing node design and construction-phase stability checks.

• Global Design Codes: AASHTO LRFD, Eurocode EN, AS 5100 international bridge specifications
• Structural Advantages: Lightweight, high strength, flexible girder sections and rapid on-site erection
• Applicable Span Range: 20m – 120m for simply supported and continuous bridge systems
• Engineering Applications: Highway viaducts, urban interchanges, medium-span railway bridges
• Material Standards: ASTM A709 steel complying with AISI and AWS welding specifications

Our Steel Plate Girder Bridge is a high-strength, welded steel beam system engineered for reliable load distribution in highway, railway, and industrial infrastructure construction. Built from precision-cut steel plates (flange + web) with full penetration welding, it delivers exceptional structural stability while supporting heavy traffic loads.

The robust I-girder design allows seamless integration of deck slabs, expansion joints, and utility conduits, reducing on-site construction time and costs while maintaining long-term structural integrity.

Application Scenarios 
    Urban viaducts and grade separation bridges
    Highway and railway medium-span bridges
    Bridge widening and reconstruction projects
    Industrial plant crane beams
    Temporary bridges and emergency repair bridges