Customizable Double Lane High Strength 321 Type Bailey Panel Modular Steel Bridge for Construction and Emergency Relief with Hot-DIP Galvanized Components

Customization: Available
Scale: Middle Bridge
Usage: Footbridge, Highway Bridge, Over Water Bridge, Railway Bridge, Viaduct

Product Description

Basic Specifications

Structural FormThrough-Type Steel Truss Bridge; Truss Unit Feature
Maximum Achievable Span61 Meters (Specific Spans Designed According to Requirements)
Main Structural MaterialQ345B (High Strength Low Alloy Structural Steel GB/T 1591-2018)
Corrosion ProtectionPaint Anti-Corrosion Processes or Hot-DIP Galvanization
Transportation ModeShipped as Loose Items; Container/Truck Compatible
Specification3.048 * 1.4m (Panel Unit)
OriginChina
HS Code7308100000
Production Capacity100,000 Tons/Year

Product Introduction

Modular Steel Bridge
Bailey Panel Detail
Model 321 Bridge Overview

The Model 321 bridge is a through-type steel truss bridge utilizing a Warren configuration (Double-Warren or K-type). The top and bottom chords are constructed from No. 10 channel steel, while vertical and diagonal members are fabricated from No. 8 channel steel through professional welding. The modular connection unit measures 3000mm in length and 1400mm in height. Components are factory-prepared and connected on-site using high-precision Bailey pins.

Bridge Component 1 Bridge Component 2 Bridge Component 3
Bracing System: Comprises wind ties and vertical struts connected to floor beams for lateral stability.

Deck System: Utilizes 28A I-beams as load-bearing girders fixed with specialized clamps. Steel deck panels (2996×900×110mm or 2996×540×110mm) directly withstand traffic loads and are secured using U-bolts.
Steel Structure Detail Galvanized Components

Key Advantages

FeatureBenefits
Modular DesignStandardized prefabricated components for flexible expansion.
Rapid DeploymentQuick response and setup for emergency and relief scenarios.
Low-Dependency AssemblyManual assembly or light equipment installation supported.
RelocatabilityEntire structure can be disassembled and reused elsewhere.
High StrengthExceptional load-bearing capacity and long-term stability.

Manufacturing Excellence

Main Product Gallery Production Line Large Scale Bridge Project Our Factory

Packaging & Global Reach

Corporate Advantage Certificates Packaging Logistics

Frequently Asked Questions

Q: What is the maximum span of the Model 321 steel bridge?
A: The maximum achievable single span is 61 meters. Specific spans are designed based on traffic load requirements and terrain conditions.
Q: What materials are used in the construction?
A: Main structural components use Q345B high-strength low-alloy structural steel, which conforms to international standards for load-bearing and durability.
Q: Do you support custom bridge designs for non-standard requirements?
A: Yes, we provide full customization for special spans, extreme load requirements, and complex terrain solutions like mountainous areas or river crossings.
Q: How is the steel protected against corrosion?
A: We apply surface treatments per national standards, using either specialized paint anti-corrosion processes or hot-dip galvanization for long-term protection in coastal or chemical zones.
Q: What is the typical deployment time and MOQ?
A: Standard products have an MOQ starting from 1 set. Preliminary proposals can often be provided within 2-24 hours, and the modular design allows for rapid on-site assembly.
Q: Is the bridge transportable via standard shipping containers?
A: Yes, the component dimensions are specifically designed to be compatible with standard containerized sea and land transport requirements.

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