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.
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.
