Product Overview
Steel bridges are load-bearing structures made entirely of fabricated steel components — girders, trusses, arches, or cable-stayed systems. They span everything from small pedestrian crossings to major highway and railway bridges. Texin Steel designs, fabricates, and delivers custom steel bridges for infrastructure projects worldwide, from a single 10m footbridge to a multi-span 200m highway viaduct.
Key Advantages
- Design Flexibility: Beam, girder, truss, arch, cable-stayed — any structural system to suit site conditions.
- High Material Grades: Fabricated from Q345B, Q420B, Q460C, or matching European/ASTM grades.
- Welding Quality: All welders AWS D1.1 or ISO 15614 certified; full NDT (UT/MT/RT) testing.
- FEM Structural Analysis: Full 3D finite element modelling provided for every bridge design.
- EAC & GOST Certification: Offered for Eurasian Economic Union compliance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Span Range | 10m to 200m (single/multi-span) |
| Bridge Types | Plate girder, box girder, truss, arch, cable-stayed, suspension |
| Steel Grade | Q235B, Q345B/C/D, Q420B/C, Q460C, Q550D; or S235-S460 per EN 10025; ASTM A36/A572 |
| Fabrication Standards | GB/T 1591, EN 1090, AWS D1.1, GOST 27772 |
| Corrosion Protection | Hot-dip galvanizing (≥85μm), metalized zinc spray, or multi-layer paint system |
| NDT Requirements | 100% UT on full-penetration welds; MT on fillet welds; RT on critical joints |
| Design Life | 50-100 years depending on corrosion protection specification |
Bridge Types & Typical Applications
| Type | Span Range | Best For |
|---|---|---|
| Plate Girder | 10-50m | Highway overpasses, pedestrian bridges |
| Box Girder | 30-120m | Highway viaducts, light rail bridges |
| Warren Truss | 20-80m | Railway bridges, long-span pedestrian bridges |
| Steel Arch | 50-200m | Landmark bridges, river crossings |
| Cable-Stayed | 100-200m+ | Major highway/river crossings |
Applications
- ✔ Highway and expressway bridges
- ✔ Railway and metro viaducts
- ✔ Pedestrian and cycling bridges
- ✔ Industrial plant internal bridges
- ✔ Port and wharf access bridges
- ✔ Temporary detour bridges
Texin has supplied steel bridges for Southeast Asian highway projects, African railway bridge replacements, and Middle Eastern port infrastructure. Every project includes a fabrication report pack with material certificates, weld maps, NDT records, and erection drawings.
FAQ
1. Can you supply design documents for local authority approvals?
Yes. We provide G.A. drawings, FEM calculation reports, fabrication drawings, and welding procedure specifications (WPS) suitable for local review.
2. How is the steel bridge transported and installed?
Bridges are delivered in pre-fabricated segments. The largest segments are usually 12m × 3.5m for road transport. On-site assembly is by bolting or full-penetration welding, per the method statement.
3. Do you provide on-site welding supervision?
Yes. Texin can dispatch AWS-certified welding inspectors (CWI) for on-site quality control and guidance.
Why Choose Texin for Your Steel Bridge?
- ✅ 15+ years of steel bridge design and fabrication experience
- ✅ Full in-house FEM analysis to AASHTO / Eurocode / SNiP standards
- ✅ 10,000 m² fabrication workshop with CNC cutting, robotic welding, automated shot-blasting
- ✅ Proven EAC certification pathway for CIS region projects
- ✅ Delivery timeline guarantee with milestone reporting