|
Still deciding? Get samples of $ !
Request Sample
|
| Customization: | Available |
|---|---|
| After-sales Service: | 24/7 Online Technical Support |
| Connection Form: | Welded Connection |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
Basic Structure & Material Specifications | • Product structure: Modular prefabricated steel truss bridge girder, factory-prefabricated in segments with complete truss structural system • Main material: High-quality carbon structural steel / low-alloy high-strength steel, complying with ASTM A36/A572, AS/NZS 3679, BS EN 10025 standards • Section type: Customizable I-beam, box beam, H-beam sections, adapting to different pedestrian bridge spans and load requirements • Standard span range: Regularly suitable for 3m-30m pedestrian bridge spans, non-standard large-span specifications available for customization |
Prefabrication & Processing Technology | • Prefabrication mode: Full modular prefabrication in the factory, all components and joints processed in the workshop, no on-site secondary processing required • Cutting process: CNC plasma / flame cutting for blanking, cutting size tolerance of plates and profiles controlled within ±0.5mm, burr-free and deformation-free cuts • Forming process: CNC bending and rolling forming, the straightness and flatness of components meet the general specifications for steel structure prefabrication |
Welding & Connection Technical Standards | • Welding process: Standardized GMAW gas metal arc welding and SAW submerged arc welding in the workshop, uniform weld formation, no cold lap, missing weld, air hole, slag inclusion, crack and other defects • Weld inspection: 100% weld appearance inspection, 100% UT ultrasonic non-destructive inspection for key load-bearing welds, meeting design and specification requirements • On-site connection: All adopt high-strength bolt friction connection, complying with ASTM A325, AS/NZS 1252 standards, no on-site welding process, greatly shortening the on-site installation cycle |
Anti-corrosion Treatment Technical Parameters | • Standard anti-corrosion: Hot-dip galvanized to ASTM A123, AS/NZS 4680, BS EN ISO 1461 • Zinc coating: Avg. ≥85μm, min. ≥70μm, uniform and defect-free • Pre-treatment: Sandblasted to Sa2.5 grade for reliable coating adhesion • Optional: Corten weathering steel for coastal use, service life ≥50 years |




