HZ25 Infantry Bridge

2.1 Core Value: Solving Key Pain Points in Permanent Highway Construction

• Large-Span Obstacle Crossing: Eliminates the need for complex on-site fabrication when spanning wide gullies or rivers, reducing construction risks and time compared to traditional cast-in-place bridges.

• Cost-Effective Erection: Leverages existing Bailey Bridge components as cantilevers, lowering the need for specialized erection equipment and optimizing resource utilization.

• Long-Term Durability: Designed for permanent use in highway projects, with optional concrete decks (in addition to steel decks) that enhance wear resistance and extend the bridge’s service life.

• Flexible Road Integration: Supports both single-lane (4.2m) and double-lane (7.35m) carriageways, plus customizable sidewalk widths (1m/1.2m/1.5m), ensuring compatibility with different road design standards.

2.2 Key Features

• Prefabricated Design: All main structural components are factory-produced, minimizing on-site construction work, reducing labor costs, and ensuring consistent quality across every unit.

• Bailey Bridge Component Compatibility: Uses standard Bailey Bridge parts as cantilevers for erection, enabling faster assembly and easier access to replacement components (ideal for regions with existing Bailey Bridge infrastructure).

• Extendable Span: A single span covers 36m to 81m, and can be extended by 2.225m per additional section, allowing customization to match specific obstacle widths without compromising structural stability.

• High Load-Bearing Capacity: Complies with HS20-44, HA, HB, and Highway Grade I standards, with a tacked load of 60t, supporting heavy highway traffic (including trucks and commercial vehicles) for long-term use.

• Dual Deck Options: Offers steel decks (for faster installation) and concrete decks (for enhanced durability in high-traffic or harsh environmental conditions), adapting to diverse project requirements.

• Sturdy Structure: Features a 4.5m truss height that provides strong structural support, ensuring the bridge maintains stability even under extreme weather or heavy load conditions.

2.3 Technical Specifications

• Bridge Type: Prefabricated Highway Steel Bridge (CB450 Delta Bridge)

• Designed Span: Single Span 36–81m; extendable by 2.225m per section

• Designed Load: HS20-44, HA, HB, Highway Grade I, Tacked Load 60t

• Truss Height: 4.5m

• Bridge Deck: Steel or Concrete (optional)

• Roadway Width: Single Lane 4.2m; Double Lane 7.35m (meets diverse road design needs)

• Sidewalk Width: 1m, 1.2m, 1.5m (customizable)

2.4 Application Scenarios

• Permanent Highway Construction: Serves as a core bridge structure for national, provincial, or county-level highways, spanning large gullies, rivers, or valleys.

• Remote Area Infrastructure: Provides long-term, stable transportation solutions for rural or mountainous regions where traditional bridge construction is costly or logistically challenging.

• High-Traffic Road Upgrades: Replaces aging or narrow bridges in urban-suburban connecting roads, supporting increased traffic volume with its 60t load capacity.

• Industrial Zone Access: Builds permanent access bridges for industrial parks, ports, or mining areas, withstanding heavy vehicle traffic (e.g., cargo trucks, construction machinery).