Long-Span Steel Bridge Deck System – Supports Heavy Loads with Minimal Structural Steel Consumption

Long-Span Steel Bridge Deck | High Load Capacity & Optimized Steel Usage

This long-span steel bridge deck is a high-performance structural floor solution tailored for bridge and infrastructure projects. Adopting G500 high-strength galvanized steel and 210mm deep trapezoidal profile with dual-direction stiffeners, it achieves remarkable spanning performance while greatly reducing steel consumption per square meter. Wider girder spacing cuts secondary steel components, saving materials without sacrificing structural safety and load capacity. Certified to global bridge standards, it is an economical and efficient option for modern bridge engineering.
 

Core Advantages

1. Large Spanning Range, Greatly Reduced Steel Dosage

Unpropped span up to 6.0m and propped span above 8.5m allow wider girder layout and fewer supporting beams. The deep rib profile boasts strong bending resistance and load distribution capacity. Less steel fabrication, transportation and installation work effectively shortens construction periods and lessens foundation loads.

2. G500 High-Strength Steel for Heavy-Duty Scenarios

Made of G500 structural steel (minimum yield strength 500 N/mm²), it features an excellent strength-weight ratio. It stably withstands heavy vehicle wheel loads, dynamic traffic impact and concentrated equipment loads, maintaining stable performance throughout the whole service life with less steel than traditional decks.

3. Optimized Profile Improves Composite Efficiency

The 210mm trapezoidal rib equipped with transverse & longitudinal stiffeners brings multiple benefits:

• •Powerful bending resistance and uniform load distribution
• •Smooth force transfer between steel deck and concrete slabs
• •Tiny deflection under heavy traffic to guarantee driving comfort
• •Thinner concrete layer available while keeping overall structural strength The integrated steel-concrete composite structure maximizes material utilization efficiency.

4. Obvious Steel Saving Effect
Long-span design widens beam spacing and removes intermediate supports, sharply cutting superstructure steel consumption:

5. Efficient Steel-Concrete Composite System

The deck works well with cast-in-place concrete slabs: it acts as permanent formwork during construction and tensile reinforcement after completion. Matching steel bars and anti-crack mesh further strengthen slab rigidity and fire resistance, realizing maximum structural performance with minimal materials.

6. Stable Fire Resistance

It reaches a 2-hour fire rating without bottom fireproof treatment, meeting international bridge safety standards. When combined with beam structures, 60-minute fire resistance is available. No extra fireproof materials are required for most projects, lowering comprehensive costs.

7. Fully Compliant with International Standards

Designed and manufactured in accordance with mainstream global specifications:

• Eurocode 4: Composite steel-concrete structure design
• BS 5950: Steel structure for buildings
• AS/NZS 2327: Composite steel-concrete bridge construction Complete technical manuals and calculation documents are supplied for design review and project approval.
   

Application Scope

• •Highway & municipal road bridges
• •Railway viaducts
• •Urban pedestrian and bicycle overpasses
• •Heavy-duty vehicle parking structures
• •Factory access bridges for engineering machinery
• •Old bridge renovation and deck replacement projects
   

Installation Merits

1. •Precisely prefabricated panels, fast hoisting and assembly with standard lifting equipment
2. •Reduced quantity of supporting beams shortens erection cycle
3. •Forms safe temporary working platform instantly after laying, supporting cross construction
4. •Nestable profile saves shipping space, convenient for transportation and storage
5. •Factory fixed sizes avoid on-site cutting, reduce waste and labor input
    

Custom Service & Technical Support

• •Custom length, thickness and steel gauge per construction drawings
• •Professional load and span calculation
• •Complete design files, construction guidelines and BIM drawings
• •Open transparent quotation and flexible delivery schedules
• •On-site installation technical guidance on request
   

Global Logistics & Supply Capacity

Our factory is fitted with high-output roll-forming production lines to satisfy large infrastructure orders. Ample raw material stock ensures fast production start and continuous global supply. Custom protective packaging prevents transit damage; experienced logistics partners guarantee safe and punctual delivery worldwide.
 

Why Choose Our Long-Span Steel Bridge Deck?

Combining G500 high-strength steel, optimized rib design, large spanning capacity and international standard certification, our bridge deck achieves heavy load bearing with far less steel than traditional products. It cuts material, fabrication and installation costs, and maintains long-term durability under harsh outdoor environments. Strict whole-process quality control and professional technical support fully safeguard project performance.

Manufacturer: Hangzhou FAMOUS Steel Engineering Co., Ltd. (FASECbuildings) Origin: Hangzhou, China

Contact us for your bridge project consultation. Our engineers will offer customized span calculation, design schemes and cost solutions for you.