ICF(Insulated Concrete Form) Bracing
AASHTO, Eurocode & AS 5100 Compliant Steel Plate Girder Bridge | Composite Structural Engineering
Steel plate girder bridge is one of the most mainstream prefabricated steel bridge structures worldwide, with welded steel girders acting as the primary load-bearing components. With optimized cross-section design and composite structural configuration, the bridge achieves excellent mechanical performance, construction efficiency and economic feasibility. Our products are fully engineered in accordance with international bridge codes, widely adapted to global medium-span transportation infrastructure projects.
1. Structural Composition
The overall bridge system consists of main girders, lateral bracings, stiffeners, deck system, supports and substructures:
- ✅Main girder: Composed of web plates, upper and lower flanges, forming I-shaped or box cross-sections
- ✅Stiffeners: Vertical and horizontal members to prevent web buckling and local instability
- ✅Diaphragms: Transverse components ensuring overall structural integrity
- ✅Deck system: Precast concrete slabs, road pavement and expansion joints
2. International Standard Compliance
All design and fabrication follow authoritative global bridge specifications:
- 👍American Standard: Fully complies with AASHTO-LRFD Bridge Design Specification (10th Edition, 2024) (American Association of State Highway and Transportation Officials Load and Resistance Factor Design Bridge Design Specification) and AASHTO LRFD HL-93 vehicular live load requirements. Structural steel adopts ASTM A709 (Standard Specification for Structural Steel for Bridges), with fabrication following guidelines of AISI (American Iron and Steel Institute) and AWS (American Welding Society).
- 👍European Standard: Conforms to Eurocode 3: EN 1993-2:2006 (Eurocode 3: Design of steel structures for steel bridges).
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👍Australian Standard: Complies with AS 5100 (Australian Standard for Bridge Design and Construction).
3. Bridge Types & Span Specifications
- ✅Less on-site wet work and greatly shortened construction period
- ✅Customizable girder height and plate thickness according to project demands
- ✅Superior fatigue resistance under long-term cyclic traffic loads
- ✅Standard anti-corrosion treatment for extended structural service life
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✅Urban overpasses and highway interchange structures - ✅Medium-span highway and railway crossing bridges
- ✅Post-disaster emergency bridge reconstruction projects
- ✅Transportation bridges under general and coastal environmental conditions
| Bridge Type | Core Advantages | Available Span | Typical Applications |
|---|---|---|---|
| I-Shaped Plate Girder Bridge | Simple structure, low cost, easy fabrication | 20m ~ 50m | Small and medium highway bridges |
| Box-Shaped Plate Girder Bridge | High torsional stiffness, stable overall performance | 40m ~ 100m | Curved bridges, wide urban viaducts |
| Steel-Concrete Composite Girder Bridge | Combined load bearing, outstanding cost efficiency | 30m ~ 120m | Universal highway and municipal engineering |
4. Construction Features
We adopt factory prefabrication and on-site hoisting construction mode:Shop girder fabrication → logistics transportation → field erection → lateral connection installation → deck construction and pavement finishing.
5. Wide Application Scenarios
6. Manufacturing Capacity & Integrated Services
As an experienced steel bridge manufacturer with long-term global export experience, we possess complete production lines and strict quality management system. Each steel girder undergoes material inspection, welding quality testing and dimensional verification prior to delivery. We provide full-cycle services covering customized design, precision fabrication, international logistics and remote installation technical support for global engineering clients.
☎️If you are in need of standard-compliant, durable and cost-effective steel plate girder bridges for your infrastructure projects, please contact us at any time.
🤝We will offer personalized engineering solutions, competitive quotations and professional technical support, and look forward to establishing long-term strategic cooperation with global construction partners.
