Yukings curved-top noise barriers feature an engineered arc-profile cap design that redirects diffracted sound waves over the barrier top, adding 3-8 dB of additional effective attenuation compared to equivalent-height flat-top walls. The curved cap is a non-intrusive aerodynamic shape that is visually softer than a straight top, ideal for residential and high-speed rail projects where aesthetics and diffraction control matter.
The curved or arc-profile cap adds an engineered top geometry that bends diffracted sound waves upward, extending the effective acoustic shadow zone behind the wall. Compared with an equivalent-height straight-top barrier, the curved-cap design delivers a consistent +3 to +8 dB improvement in insertion loss, making it ideal for sensitive receptors near highways, high-speed rail lines and residential developments.
Yukings curved-cap noise barriers combine standard modular absorption panels with a pre-formed galvanized steel or aluminum alloy arc cap. The cap height typically ranges from 300 mm to 600 mm depending on the diffraction gain required, and can be tuned per project based on the receiver height, source height and barrier distance. The aerodynamic curved shape is also HSR slipstream friendly, reducing aerodynamic lift, fatigue and wind-noise generation on the barrier face.
Detailed engineering specification for Yukings curved-top / arc-cap noise barriers. Cap height and projection are fully tunable per project diffraction requirements.
Engineered arc-profile cap for diffraction gain of +3 to +8 dB vs. equivalent-height flat-top wall.
| Property | Value |
|---|---|
| Insertion Loss DL (EN 1793-3) | 25 – 42 dB (including diffraction gain) |
| Sound Insulation Rw (EN ISO 717-1) | 32 – 52 dB |
| Top Profile | curved / arc cap design |
| Cap Height | 300 – 600 mm (project-tunable) |
| Cap Material | galvanized steel / aluminum alloy pre-formed |
| Panel Material | DX51D+Z galvanized steel or EN AW-5754 aluminum |
| Panel Width | 2,500 mm standard |
| Panel Depth | 100 / 120 / 140 mm |
| Infill Material | rock-wool 80-140 kg/m3 |
| H-post Column Size | H 100 x 100 x 6 x 8 to H 125 x 125 x 6.5 x 9 |
| H-post Spacing | 2.0 m or 2.5 m bays |
| Barrier Height (incl. cap) | 2.5 – 5.0 m (including curved cap) |
| Diffraction Gain | +3 – 8 dB over flat-top equivalent height |
| Transparent Window | 8 / 10 / 12 mm polycarbonate compatible |
| Finish | hot-dip galvanized + optional RAL powder coat |
| Corrosion Resistance | ISO 12944 C3-M |
| Fire Rating | Class A (EN 13501-1) |
| Wind Load Rating | 1.2 kN/m2 |
| Design Service Life | 25 years |
| Structural Warranty | 15 years |
From acoustic simulation through pre-form tooling and containerized shipping, Yukings delivers project-tunable curved-cap barriers with documented diffraction gain.
Project-tunable arc cap delivers a consistent +3 to +8 dB diffraction improvement over equivalent-height flat-top barriers, verified by acoustic simulation.
Non-intrusive curved profile reduces aerodynamic lift, slipstream fatigue and wind-noise generation on the barrier face for high-speed rail corridors.
Hot-dip galvanized steel or EN AW-5754 aluminum alloy pre-formed cap with factory-controlled radius for consistent project-to-project performance.
Full EN 1793 / EN 1794 test dossier; CE marked. Curved-cap diffraction gain documented in project-specific acoustic simulation report on request.
Smooth curved silhouette vs. hard straight-edge geometry; easier to integrate into residential landscape, community facility and school project aesthetics.
25-year design life with 15-year structural warranty on Yukings-manufactured panels, cap assembly and H-post columns.
Standard modular panels in 100/120/140 mm depths with 80-140 kg/m3 rock-wool infill for consistent broadband absorption.
Yukings provides barrier-height, cap-projection and receiver-point acoustic simulation to support tender technical submittals and noise assessment reports.
Compare curved-cap barriers with Yukings flat-top and angled/angled-folded cantilever-cap profiles, or explore our dedicated application-specific noise wall product lines.
Classic straight-profile noise wall with standard modular panel construction; default specification for high-volume highway and railway projects.
View Product →
L-shaped cantilever cap creates an extended acoustic shadow zone, delivering the highest effective insertion loss per meter of barrier height.
View Product →
Rigid modular panels designed for high-speed rail aerodynamic load and railway-specific vibration, fatigue and slip-stream requirements.
View Product →
Aerodynamically shaped, visually softer noise barriers for housing developments, schools, hospitals and sensitive residential reception areas.
View Product →
Metal-louvered absorption panels with optional polycarbonate or concrete sections for expressway, ring road and bridge parapet noise control.
View Product →
Absorptive metal-faced panels with Class A fire rating for power plants, factories, warehouses, compressor stations and industrial perimeter walls.
View Product →Commonly asked technical, commercial and logistics questions about Yukings curved-cap / arc-profile top noise barriers.
Our curved-cap noise barrier specialists will respond to your project inquiry within 24 hours, including acoustic simulation guidance and project-specific cap-sizing recommendations where applicable.
Share your project parameters and a Yukings engineer will prepare a tailored proposal, including cap-height and diffraction gain recommendations.
