outdoor sound barriers

Outdoor Sound Barriers - Enterprise-Grade Acoustic Solutions  Product Description

You require outdoor sound barriers designed for practical use while overseeing infrastructure projects where noise compliance is mandatory. Shenyang Zhongda Steel Structure produces enterprise-grade acoustic barriers with an NRC value of 0.81 by mixing high-density glass wool cores with 2 mm galvanized steel panels (23–30% perforation rate). With SGS-verified 2000-hour UV resistance and EU CE certification (EN 14388), our modular systems deliver 25dB(A) vertical noise reduction over 2-6m spans. We design barriers that withstand 1.2kN/㎡ wind loads while adhering to stringent acoustic transmission regulations thanks to our 80,000-ton yearly production capability and ±0.1mm CNC precise fabrication. typical lead time? Custom RAL color matching for more than 200 possibilities in about 15 days.

Product Advantages

Built for Harsh Environments

Your barriers face relentless UV exposure, salt spray, and thermal cycling. Our composite construction uses hot-dip galvanized steel meeting ASTM B117 corrosion standards, ensuring 20+ year service life even in coastal or industrial zones. The perforated outer layer isn't just aesthetic—it's acoustically tuned to trap mid-to-high frequency noise while preventing wind-load amplification.

Precision Engineering, Zero Acoustic Leakage

We understand that a 1% gap can compromise 10dB of performance. That's why our 3-axis CNC drilling systems maintain ±0.1mm tolerances on interlocking joints. Every panel undergoes dimensional verification before leaving our 75,000m² facility, eliminating field-fit issues that plague low-tolerance competitors.

Full EPC Integration

You're not buying standalone panels—you're partnering with a Class I Steel Structure contractor. We handle foundation design (including H-beam columns with concrete embedment), wind load calculations per local codes, and on-site installation. Our BIM-based workflow reduces project lead times by 20-30%, keeping your timeline intact.

Customization Without Complexity

Highway projects need straight-line efficiency. Rail corridors demand arc-top profiles with fall-prevention mesh. Industrial sites require acoustic louvers for HVAC airflow. We manufacture all variants in-house, from fire-retardant Class A coatings to heavy-gauge substrates for low-frequency rumble blocking. Tell us your STC target and site conditions—we'll engineer the solution.

Specifications & Customization

Manufacturing & Quality Control

Factory Infrastructure

Our 120,000m² facility in Shenyang Economic Development Zone houses automated welding lines, 1200-ton plate rolling machines, and 50T overhead cranes. This isn't contract manufacturing—every component is fabricated, inspected, and assembled under ISO 9001/14001/45001 certified processes.

Precision Matters

CNC cutting handles ultra-thick plates up to 300mm. Automated drilling ensures perforation patterns maintain acoustic integrity across thousands of panels. Our plate rolling technology creates seamless curved profiles for rail transit barriers without structural weak points.

Inspection Protocol

Before shipment, each batch undergoes:

· Dimensional verification: Laser scanning for joint tolerances

· Coating thickness testing: Minimum 80-micron galvanization layers

· Acoustic sampling: Random NRC validation per ASTM C423

· Structural load simulation: FEA reports for wind/seismic compliance

You receive full documentation—material test certificates, inspection reports, and English technical drawings—ready for regulatory approval.

Project Cases

Shenyang Dongta Cross-Hunhe River Bridge

We fabricated and installed 18,000 tons of structural steel for this landmark project, including integrated noise barriers along the approach spans. The system addressed both traffic noise mitigation and aesthetic requirements, using weathering steel panels that complement the bridge's architectural profile.

Jingha Expressway Expansion

For this high-traffic corridor, we delivered modular outdoor sound barriers spanning 8 kilometers. The reflective-absorptive hybrid design reduced roadside noise by 28dB(A) while withstanding northern China's freeze-thaw cycles. Installation was completed 22% faster than baseline schedules through our prefabricated post-foundation systems.

Industrial Plant Perimeter (Confidential Client)

A mining equipment manufacturer needed barriers around their crusher stations—sources of intense low-frequency rumble. We specified heavy-gauge steel with enhanced mass-loading, achieving STC 42 ratings. The acoustic louver integration maintained equipment ventilation without compromising attenuation.

Compliance & Certifications

Our manufacturing and product standards align with international requirements:

· ISO 9001:2015 – Quality management across R&D, fabrication, installation

· ISO 14001 – Environmental management for sustainable production

· ISO 45001 – Occupational health and safety protocols

· EN 1090 – Execution of steel structures (EU compliance)

· EN 14388 – Acoustic performance certification for traffic noise barriers

· SGS Verified – 2000-hour accelerated UV aging tests

· AWS D1.1 – Welding standards for structural applications

We also provide site-specific compliance support, including environmental impact assessments and noise mapping reports to satisfy local EPA or municipal decibel limits.

FAQ

Q: How do you ensure barriers won't fail in hurricane zones?

A: We calculate wind loads per ASCE 7-22 standards and your local wind speed maps. Post spacing, foundation depth, and panel reinforcement are engineered accordingly—backed by structural FEA reports.

Q: Can these barriers handle both highway and rail applications?

A: Absolutely. Highway installations use straight panels with H-beam posts. Rail transit versions feature arc-top profiles and safety netting, all manufactured in our facility to maintain quality consistency.

Q: What's the difference between your standard and absorptive barriers?

A: Standard barriers use perforated steel with glass wool—ideal for open spaces. For confined areas like industrial yards, we recommend enhanced absorptive cores (higher NRC) to prevent sound reflection buildup.

Q: Do you provide installation services internationally?

A: Yes. We've supported Belt and Road projects with EPC delivery, including foundation work, panel erection, and post-installation acoustic verification. Our teams travel with full technical documentation in English.

Q: How do I verify the acoustic performance before large-scale purchase?

A: We supply lab-tested ASTM E90/E413 data for STC ratings and can arrange third-party on-site validation post-installation. Sample sections are available for your pre-approval testing.

Contact Us

Ready to solve your noise compliance challenges with precision-engineered outdoor sound barriers? Our technical team is here to discuss your project's acoustic targets, site conditions, and timeline.

Email:  Ava@zd-steels.com