Bridge Structure Solutions | Custom Steel Truss Bridges for Global Infrastructure
ISO 9001 Certified | AWS-Certified Welders | 20+ Years Expertise
As leading bridge structure manufacturers, Qingdao Zhuzhiyuan Steel Structure Co., Ltd. specializes in prefabricated truss systems for bridges, steel truss arch bridge, and high-rise projects. With 20+ years of experience and a 40,377㎡ production facility, we deliver durable truss structure bridges and steel truss arch bridges to 30+ countries.
Our bridge truss structure systems are engineered for diverse infrastructure needs:
Steel truss arch bridges spanning 500m+ with seismic resistance (8.0+ magnitude)
High-speed rail trusses supporting 450km/h trains
Lightweight truss systems for urban canopies and sightseeing bridges
Corrosion-resistant marine-grade truss structures for harbors
30+ Tekla Structures engineers with bridge-specific certification
Patent-pending truss node designs for load optimization
BIM Level 3 coordination for clash-free shop drawings
12 automated orbital welding systems for joint precision (±0.1mm)
8-axis CNC tube cutters for complex arch geometries
200+ CO2 gas shielded welders specializing in thick-plate trusses
Direct sourcing from Chinese steel mills (Q355B grade)
Hot-dip galvanized coating (120μm) for 720-hour salt spray resistance
| Stage | Process Step | Technical Features |
|---|---|---|
| Design & Engineering | Tekla 3D modeling & BIM coordination | Automated clash detection for complex truss geometries |
| Material Cutting | CNC plasma/LASER cutting (0.05mm tolerance) | 8-axis tube cutter for ±0.1mm joint precision |
| Welding & Assembly | AWS D1.1 orbital welding by Level III teams | Robot-assisted truss assembly for 98% consistency |
| Quality Testing | MT/UT inspections per GB/T 11345 | Load simulation up to 1.5x design capacity |
| Galvanization & Shipping | Hot-dip galvanized (120μm coating) | Direct port access to Qingdao/Tianjin ports |
Load Capacity: Q355B steel trusses support 50 tons/m² live loads
Seismic Resilience: Base-isolated designs withstand 8.5 magnitude earthquakes
Wind Resistance: Aerodynamic arch shapes mitigate 200km/h typhoon forces
Material Efficiency: Truss systems use 30% less steel vs solid beams
Faster Installation: Modular components reduce onsite labor by 40%
Lifetime Savings: 70-year lifespan with minimal maintenance
100% recyclable steel material
Low-carbon manufacturing process (ISO 50001 certified)
Reduced transportation emissions via prefabrication
Raw Material Control
Steel Plate Inspection:
Third-party GB/T 709 thickness verification (Q355B grade)
Magnetic particle testing (MT) for surface defects
Welding QA:
Real-time wire feeder monitoring for GMAW consistency
200+ QC inspectors conducting 100% visual checks
Precision Machining:
Laser tracking system for 8-axis tube cutter alignment
Structural Testing:
Load simulation up to 1.5x design capacity (ASTM E709)
Seismic performance validation via finite element analysis
Coating Inspection:
Salt spray test (ISO 9227) for 720-hour corrosion resistance
QR Code System:
Each module is embedded with a production batch ID.
Real-time tracking via SAP ERP system
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