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Modern Design Prefabricated Steel Building Prefabricated Modular Steel Truss Bridge
Product Summary
CE-certified prefabricated steel truss bridge with 50-year lifespan & 121+ mph wind resistance. Modular design for fast assembly, custom spans & loads. High-strength steel with professional anti-corrosion treatment.
Product Custom Attributes
Tolerance::
±1%
Installationmethod::
Bolt Connection/Welding
Dimension::
Up To Customers' Requirements
Purling::
C/Z Galvanized Steel(Q235)
Fastener Grade::
6.8 Or 8.8
Standard::
GB
Frame Material::
Carbon Structure Steel
Structure::
Galvanlized Steel Frame
Grade::
Q235/Q345B
Use::
Wokshop
Load::
HS15-HS25 Or Others
Color::
Blue, Red And White , Grey
Project::
Steel Structure
Feature::
Light Weight
Design Options::
Versatile
Highlight::
Modern Prefabricated Steel Building
,Modular Prefabricated Steel Building
,GB pre fab metal buildings
Basic Properties
Place of Origin:
China
Brand Name:
JinHongTong
Certification:
CE (EN 1090)，ISO 9001 / 14001 / 45001，AISC Standard，SABER / SASO / SABS，EN 10204 3.1 Material Certificate，ISO 3834 Welding Quality System
Trading Properties
Minimum Order Quantity:
100 ㎡
Price:
999
Packaging Details:
Waterproof plastic film + steel strip bundling + wooden pallets.Seaworthy export packing.
Delivery Time:
30 work days
Payment Terms:
L/C,D/A,D/P,T/T,Western Union
Supply Ability:
Annual production capacity: 20,000 ㎡ - 30,000 ㎡ of steel structure buildings.
Product Description
Steel Structure Modern Design Prefabricated Modular Steel Truss Bridge
Our steel structure bridge is manufactured with high-strength heavy steel materials and advanced welding technology. Featuring high structural rigidity, strong bearing capacity, seismic resistance and wind resistance, it adapts to complex terrain and harsh natural environments. Professional anti-corrosion, rust-proof and weather-resistant treatment greatly extends the service life. With fast on-site installation, low comprehensive maintenance cost and flexible design, our steel bridges are widely used for highway crossings, river spans, municipal engineering and industrial transit. Customized span, load standard and overall solution are available to meet diverse engineering project requirements.
Technical Specifications
| Parameter | Specifications |
|---|---|
| Span Range (M) | 50-160 |
| Altitude Band (M) | 15-50 |
| Anti-corrosion Treatment | Galvanizing, spraying zinc, and spraying anti-corrosion paint |
| Fire-protection Rating | Higher than or equal to Level 2 |
| Load Type | Enclosure materials, equipment, cranes, local natural conditions |
| Intensity | S355/Q235/Q355 |
| Tolerance | ±1 |
| Standard | Chinese Standard/European Standard |
| Type | Light steel, grid frame, section steel, pipe truss |
| Process Mode | Bending, welding, cutting, assembling, shot blasting and painting |
| Drawing Design | SAP2000/AutoCAD/PKPM/3D3S/TEKLA |
| Raw Material | Steel |
| Surface Preparation | Galvanization |
| Certificate | CE |
| Main Frame | Lightweight portal frame, multi story and high-rise frame, space frame |
| Material of Wall and Roof Panels | TDC51D, TS350GD |
| Design Lifespan | 50 Years |
Packaging and Delivery
| Port | Qingdao, TianJin, and HeBei |
| Delivery Cycle | 15-60 Days |
| Marketing Unit | Square meter |
| Supply Capacity | 10,000 tons/month |
Key Features
- 50-Year Lifespan & Long-Term Durability: Adopting high-quality structural steel (Q355q, Q420q, EN S355/S420 series) with excellent toughness and anti-fatigue performance, combined with professional anti-corrosion treatment (hot-dip galvanizing + epoxy zinc-rich primer + fluorocarbon topcoat) in line with ISO 12944 standards.
- 121+ Mph Wind Resistance: Optimized through professional wind tunnel tests and numerical simulation, the modular truss structure with triangular framework design effectively distributes wind load, meeting the anti-wind requirements of strong wind and hurricane-prone areas.
- Modern Design & Modular Prefabrication: Adopting modern minimalist design with sleek and elegant appearance. Modular prefabrication mode realizes factory standardized production with high precision (error ≤±1mm), shortening construction period by 40%-60%.
- High Efficiency & Cost-Saving: Modular design allows flexible combination and expansion, reducing material waste and transportation costs. Lightweight structure reduces foundation engineering investment.
Core Technology
Modular Truss Structure Technology
The triangular truss framework evenly distributes tensile and compressive forces, maximizing structural efficiency and load-bearing capacity. Suitable for medium and large-span projects (single span up to 91 meters) with standardized interfaces ensuring seamless assembly.
Precision Prefabrication & Welding Technology
Equipped with advanced CNC cutting, bending and welding equipment. Welding process complies with EN ISO 15614 and AWS D1.5 standards with 100% welding qualification rate and component precision meeting EN 10210/EN 10219 standards.
Anti-Corrosion & Durability Enhancement Technology
Three-layer anti-corrosion system (hot-dip galvanizing + epoxy zinc-rich primer + fluorocarbon topcoat) with galvanizing layer thickness of ≥80μm. Steel material selected with Z-direction performance (Z15/Z25/Z35) to avoid lamellar tearing.
Wind Resistance Optimization Technology
Combined with wind load analysis and flutter stability calculation, featuring streamline truss section and aerodynamic diversion device to reduce wind resistance and vortex-induced vibration.
International Standards & Key Parameters
| Parameter Category | Key Specifications | International Standards |
|---|---|---|
| Certification | CE Certification (EXC3 Execution Class), ISO 9001, AWS D1.5 | EU CPR (EU 305/2011), EN 1090-1/2, ISO 9001, AWS D1.5 |
| Lifespan | 50-Year Design Lifespan | ISO 12944 (Corrosion Protection), EN 1090 |
| Wind Resistance | 121+ Mph (195+ km/h), Flutter Critical Wind Speed ≥1.2*Design Wind Speed | Wind Load Calculation Standards (GB/T 50009, AASHTO LRFD) |
| Steel Material | Q355q, Q420q, EN S355/S420 Series, Z15/Z25/Z35 Z-direction Performance | GB/T 714, EN 10025-2/-3/-4, ASTM A709 |
| Modular Specifications | Span: 10-91m (Customizable); Module Weight: 500-5000kg/unit; Section Thickness: 8-30mm | EN 10210/EN 10219, ASTM A578 |
| Welding Standard | Full Penetration Welding, Welding Qualification Rate 100% | EN ISO 15614, AWS D1.5, EN ISO 9606 |
| Anti-Corrosion | Three-Layer Anti-Corrosion System, Galvanizing Layer ≥80μm | ISO 12944, ISO 2063, ISO 1461 |
Application Scenarios
Our prefabricated modular steel truss bridges are widely used in various infrastructure projects, including highway and railway crossings, urban overpasses, cross-river and cross-valley bridges, industrial zone passages, emergency rescue bridges, and remote area traffic links. They are especially suitable for areas with strong wind, high humidity, and complex construction environments.
Prefabricated Barns & Steel Frame Houses: Almost all pre-engineered long-span steel structure frame buildings are customized. Basic design requirements include snow load, wind load, seismic magnitude, column placement, project location, dimensions, and building purpose.
To ensure quality preservation, we provide standard sea container loading package, generally using 40HOT containers for loading and uploading.
Manufacturing Process
- Processing strictly follows international standards (AISC 360, Eurocode 3, EN 1090)
- Strict raw material inspection including material certificate verification and dimensional measurement
- Lofting, marking and cutting by numerical control equipment for precise dimensions
- Straightening and correction (thermal or mechanical) to ensure component flatness
- Drilling and punching processes followed by assembly of main components
- Professional welding (submerged arc welding, gas shielded welding) with UT/MT non-destructive testing
- Secondary straightening and grinding with shot blasting to Sa2.5 derusting grade
- Final marking and proper packaging for safe transportation and installation
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