Corrugated Steel Arch Pipes

Structural engineers select corrugated steel arch pipes (alternative name: Structural Plate Arches) for superior load distribution in bridge replacements and stormwater management. The arched profile provides 28% greater hydraulic capacity than circular pipes at equivalent spans.

Circular

Elliptical

Pipe arch

High profile pipe arch

Arch

Low profile arch

High profile arch

High profile ellipse

Engineering Solutions

• Optimized Flow Dynamics: 150°-180° arch angles reduce turbulence in high-velocity applications
• Modular Assembly: Interlocking seams withstand 2.5x AASHTO HS-20 live loads

Technical Parameters

CharacteristicMetric RangeImperial EquivalentSpan Capacity3-25m10-82’Rise-to-Span Ratio0.3-0.5-Plate Thickness3.0-12.5mm0.118-0.492″Coating SystemGalfan AZ185 (400g/m²)

Smart Infrastructure Features

• Strain gauge ports at 1/4 span points for deformation monitoring
• QR-coded segments integrate with GIS asset management systems

Geotechnical Installation Notes

For Corrugated Steel Arch Pipes in:

• Expansive Clay: Minimum 450mm granular bedding (100% Proctor density)
• Rock Foundations: Shock-absorbing EPS foam padding required
• Wetland Crossings: Anti-buoyancy anchors at 1.2x pipe diameter intervals

Why Engineers Choose Us

✓Smart Corrosion Protection

• Dual-layer Galfan coating (AZ150) + optional cathodic protection ports
• 40% thicker zinc coating vs industry standard (350g/m²)

✓Hydraulic Efficiency

• CFD-optimized 68x13mm corrugations reduce turbulence by 22%
• Spiral rib design prevents sediment accumulation

✓Installation Superiority

• Pre-assembled boltless connectors cut field labor by 35%
• Soil-specific installation kits (includes geotextiles for sandy soils)

All systems meet ASTM A796 Class III corrosion resistance standards for coastal environments. Contact our engineering team for site-specific FEA modeling reports.