Next-Generation Infrastructure
Prefab Sandwiched
Elevated Highway
A Core Slab Road · A New World
Revolutionizing global infrastructure with zero-concrete, AI-manufactured Steel Core Slab technology. 30–70% lower cost, 10× faster construction, 150-year design life.
UP TO 0%
Cost Reduction
0×
Faster Build
0 YRS
Design Life
Product Overview
Redefining Elevated Highways
The Prefab Sandwiched Elevated Highway uses BROAD's proprietary "Steel Core Slab" sandwich structure — zero concrete, AI-manufactured, globally shippable, and rapidly installable. It replaces traditional elevated road systems at a fraction of the cost with superior quality and longevity.
60–70%
Zero Concrete
10×
AI Manufactured
150
150-Year Design Life
⬡
Zero Concrete
Sandwich-structure Steel Core Slab eliminates all concrete. 60–70% lighter than traditional bridges.
◈
150-Year Design Life
Hot-wind brazed joints are stronger than the base material. 5× fatigue life vs orthotropic plates.
◉
AI Manufactured
All components intelligently designed and brazed in one piece for micron-level precision.
◎
Global Shipping
Each 120m² module fits a standard 40ft container footprint for low-cost worldwide delivery.
◌
Ecological
Minimizes disruption to villages, towns, and natural water systems and ecosystems.
◆
Versatile
Highways, bridges, railways, multi-deck, suspension bridges, and light rail interfaces.
Core Innovation
Steel Core Slab Technology
The sandwich-structure "Steel Core Slab" is the heart of this revolution.
🔥
Hot-Wind Brazing
Precision hot-wind brazing technology creates joints stronger than the base materials themselves.
💪
5× Fatigue Life
Over 5 times longer fatigue life than traditional orthotropic steel plates.
♾
No Joint Splitting
Guaranteed no splitting of joints throughout the 150-year design life.
⧉
Sandwich Structure
Double-plate design provides superior stiffness-to-weight ratio with zero concrete reinforcement.
Steel Core Slab — Cross Section Detail
10× FASTER
High-Tech Construction
10× Faster Construction
A single crew completes at least 1 km of elevated highway per month.
0
km / Month
1 km / Month
📏
1 km / Month
Standard crew completes at least 1 kilometer of elevated highway per month.
🚫
No Temporary Roads
Only pier foundations are needed on-site. Zero temporary road construction required.
🏗
On-Deck Hoisting
Cranes operate directly from the newly installed deck — continuous "Lego-like" assembly.
Global Supply Chain
AI Manufacturing & Global Logistics
📐
120
m²
Highway surface area per single module
🤖
AI Intelligent Manufacturing
All components are intelligently manufactured by AI and brazed in one piece for micron-level precision.
📦
Container-Free Transport
Each module fits standard 40ft container dimensions. The frame itself acts as the container.
🚢
Low-Cost Global Shipping
Standardized dimensions enable seamless global shipping to any construction site worldwide.
Competitive Advantage
30–70% Cost Reduction
vs Traditional Steel Highway
↓
Lower Steel Consumption↓
Lower Prefabrication Costs↓
Lower Transportation Costs↓
Lower Installation Costs↓
Shorter Construction PeriodTotal Project Cost
Traditional Steel Highway100%
BASELINE
Prefab Sandwich Highway30–70%
SAVE 70%
Safety & Durability Comparison
⚠ Concrete Risks
✗
Brittle Material
Prone to sudden collapse during earthquakes or geological shifts.
✗
Hidden Rust
Internal corrosion is hard to detect until catastrophic failure.
✗
Frequent Collapse
Many concrete bridges collapse globally every year.
VS
🛡 Steel Core Safety
✓
Ductile & Resilient
Steel structures do not collapse suddenly. Superior earthquake resistance.
✓
No Hidden Corrosion
Visible structure makes inspection and maintenance straightforward.
✓
150-Year Design Life
Engineered for longevity with 5× fatigue life of traditional materials.
Global Adaptability
Versatile Applications Worldwide
🛣
Highways
Rapid deployment of national highway networks with minimal disruption.
🏙
Municipal Roads
Reduces urban congestion during construction; fits tight city spaces.
🌊
Cross-River / Sea
Lightweight structure simplifies underwater foundation requirements.
🚆
Railway Foundations
High stiffness suitable for heavy rail load-bearing foundations.
⚓
Suspension Bridges
Lightweight decks for long-span suspension bridges.
📚
Double / Multi-Deck
Easily stackable for multi-level traffic solutions.
⛰
Surface Road Alternative
Cost-effective in hilly, desert, or rainy areas.
🚇
Light Rail Interface
Rail interfaces reserved under bridges for future light rail integration.
Technical Data
Key Specifications
↔
13 / 17 / 22
m
Standard Width
⟺
38
m
Standard Span
↕
5 ~ 30
m
Pier Net Height
⚡
1
km/mo
Construction Speed
∞
150
yrs
Design Life
⬡
Road Slab & Beam Material:Steel Core Slab
Media & Downloads
Videos & Brochures
Product Video
Full product introduction video in English — ideal for international partners.
Download Brochures
🇬🇧PDF
Marketing Brochure (EN)
Full technical & marketing brochure in English (PDF)
🇨🇳PDF
营销手册（中文）
完整技术与营销手册中文版（PDF）
Partnership
Build the Future of Global Infrastructure
We invite global partners to open a new era of prefab sandwiched elevated highway construction. Lower cost, faster speed, superior quality — connecting every corner of the world.
A Core Slab Road · A New World
Get In TouchB
BROAD ROAD BRIDGE CO., LTD.