Highway Steel Structure Sound Barrier

Highway Steel Structure Sound Barrier – Enterprise-Grade Noise Mitigation Solutions

When your highway project demands reliable noise control, Shenyang Zhongda delivers. Our Highway Steel Structure Sound Barrier integrates 20 years of engineering expertise with precision fabrication. Built on our 75,000 m² facility, each system features Q345B structural steel with ≥85μm hot-dip galvanizing, achieving STC ≥30dB and NRC 0.80. With an annual production capacity of 80,000 tons, we've successfully delivered 60+ landmark infrastructure projects. Our barriers withstand wind loads up to 3.0kN/m², backed by ISO 9001/14001/45001 certifications and supported by advanced CNC processing with ±0.1mm precision—ensuring your project meets both acoustic and structural standards.

Product Description

Our noise barriers are engineered to tackle real-world challenges you face daily.

What makes them effective?

The system combines high-strength vertical H-posts with composite acoustic panels. The outer layer uses 2mm galvanized perforated steel (23-30% perforation rate), while the inner core contains high-density glass wool (NRC 0.81). This dual-layer design intercepts traffic noise while allowing natural ventilation.

Each barrier is modular. You get 2-6 meter sections that connect seamlessly on-site. This speeds up installation and reduces road closure time—critical when you're working on active highways.

The structure handles extreme conditions. Wind pressure resistance reaches 1.2kN/m². Impact resistance protects against road debris. And the hot-dip galvanizing process ensures 25+ years of service life, even in harsh environments.

Where does it work best?

· Urban elevated viaducts near residential zones

· Bridge-mounted sections requiring lightweight solutions

· High-speed rail-highway intersections with aerodynamic pressure fluctuations

Product Advantages

Superior Acoustic Performance

You need proven noise reduction. Our barriers deliver 25dB(A) vertical attenuation. Laboratory testing per ISO 354/10140 confirms consistent performance across frequency ranges—from low-frequency truck rumble to high-pitch tire whine.

Structural Durability You Can Trust

We use Q235B and Q345B structural steel. Hot-dip galvanizing thickness exceeds 85μm (ISO 1461 standard). Add our duplex powder coating system, and you get triple-layer protection against corrosion—even in coastal C5 environments.

Rapid Deployment

Modular design means faster installation. Your crew doesn't need specialized welding on-site. H-posts embed into pre-drilled foundations. Panels slot into place. Standard projects complete 30% faster than traditional concrete barriers.

Design Flexibility

Every project differs. We offer:

· Custom heights from 2m to 6m

· Curved sections for bridges and ramps

· Transparent polycarbonate options where visibility matters

· RAL color matching (201+ colors) to blend with surroundings

Long-Term Cost Efficiency

Low maintenance translates to savings. Our barriers require minimal upkeep. Individual damaged panels replace easily without dismantling the entire structure. Over a 25-year lifecycle, maintenance costs stay 40% below traditional alternatives.

Technical Specifications & Customization

Manufacturing & Quality Control

Production Capability

Our 75,000 m² facility runs on precision. You benefit from:

· CNC cutting systems handling ultra-thick plates up to 300mm

· 3-axis CNC drilling with ±0.1mm tolerance for perfect panel alignment

· Automated welding lines ensuring consistent H-post joint integrity

· 50-ton crane capacity for handling heavy structural components

Annual production reaches 80,000 tons. This scale means shorter lead times for your projects—even large highway sections.

Quality Assurance Process

Every barrier undergoes rigorous inspection:

1. Zinc Coating Verification – Magnetic induction testing confirms ≥85μm thickness across all surfaces

2. Coating Adhesion Test – Cross-hatch testing ensures no peeling after 2000h UV exposure (SGS certified)

3. Weld Integrity Checks – Ultrasonic and magnetic particle testing detect internal flaws

4. Acoustic Performance Testing – Laboratory verification per ISO 354/10140 standards

5. Dimensional Accuracy – Laser measurement ensures ±2mm tolerance for seamless assembly

Our ISO 9001/14001/45001 certified management system tracks every production stage. You receive full MTC documentation and inspection reports with each shipment.

Project Cases

Jingha Expressway Expansion (Liaoning Province)

Challenge: High-volume traffic corridor passing through residential zones required noise reduction without compromising structural integrity during expansion.

Solution: We delivered 8,500 linear meters of Highway Steel Structure Sound Barrier with customized 4-meter heights. Arc-top designs handled complex curved sections.

Result: Noise levels reduced by 28dB(A) in adjacent communities. Modular installation completed 20% faster than scheduled, minimizing traffic disruption.

Shenyang Dongta Bridge Acoustic Project

Challenge: Bridge-mounted barriers needed to minimize dead load while withstanding extreme wind conditions.

Solution: Lightweight Q345B framework with optimized H-post spacing. Wind load calculations based on 50-year return period data.

Result: Structure supports 2.8kN/m² wind pressure with only 15kg/m² added load to the bridge deck. Zero maintenance issues after 3 years of operation.

Compliance & Certifications

We meet international standards so you can confidently specify our products:

· ISO 9001:2015 – Quality Management System

· ISO 14001:2015 – Environmental Management

· ISO 45001:2018 – Occupational Health & Safety

· EN 1090 – Structural steel fabrication (EU compliance)

· EN 14388 – Acoustic barrier certification (CE marked)

· AWS D1.1 – Welding standards (USA)

All materials undergo third-party testing. SGS, TÜV, and national testing centers validate acoustic performance and durability claims.

FAQ

Q1: What's the expected service life in industrial zones with air pollution?

A: With hot-dip galvanizing and professional powder coating, expect 25-30 years even in C3-C4 corrosive environments. For coastal areas, we recommend our triple-layer PVDF coating system for C5-level protection.

Q2: How do you handle extreme wind loads during typhoons?

A: Structural calculations follow the 50-year return period wind speed standard. H-post embedment depth and flange thickness adjust based on your site's wind zone classification. Our standard design handles 1.2kN/m², with options up to 3.0kN/m².

Q3: Can individual panels be replaced after vehicle impact damage?

A: Absolutely. The modular design allows single panel extraction and replacement. Your maintenance crew won't need to dismantle primary steel posts—just unbolt the damaged section and install a new panel.

Q4: Is the system fire-resistant?

A: Yes. Structural steel and core insulation materials (glass wool or rock wool) are Class A non-combustible. This meets highway safety regulations for tunnels and enclosed sections.

Q5: What's your lead time for custom color matching?

A: Standard colors ship within 15 days. Custom RAL color matching adds 7-10 days for coating preparation. We'll send color samples for approval before full production.

Q6: Do you provide installation guidance?

A: Yes. We supply detailed installation manuals, foundation drawings, and can dispatch technical supervisors to your site. We also offer video consultations during assembly to ensure proper execution.

Contact Us

Ready to solve your highway noise challenges with customized Highway Steel Structure Sound Barrier? Let's discuss your project requirements.

Email: Ava@zd-steels.com