Product Description
The 321 Bailey Bridge is a modular steel bridge system.
We build the bridge with standardized Bailey panels and adjust the truss configuration according to span and load requirements.
The panels are connected with pins.
The modular design allows the bridge to be assembled and erected on site.
The 321 Bailey Bridge is used for temporary access, construction crossings, emergency routes, and transportation projects.
Its components are easy to transport, assemble, dismantle, and reuse.
Working Principle
The 321 Bailey Bridge uses a truss structure to carry the bridge load.
Vehicle loads pass through the deck system to the transoms and then to the main trusses.
The main trusses are formed by connecting standard Bailey panels.
Multiple truss rows can be combined when higher load capacity is required.
The truss arrangement can be adjusted by increasing the number of rows, layers, or reinforced chord members.
This modular arrangement gives the 321 Bailey Bridge good flexibility for different project conditions.
Structure
The main structure of the 321 Bailey Bridge includes Bailey panels, transoms, longitudinal beams, steel deck panels, and connection components.
The Bailey panel is the main load-bearing unit.
Pins connect adjacent panels and form the continuous truss.
Transoms connect the two main trusses and support the deck system.
Longitudinal beams and deck panels form the vehicle running surface.
Reinforced chords, support frames, safety pins, bridge seats, and other steel bridge accessories can also be supplied according to the project design.
A standard Bailey panel is generally around 3 m long.
A single panel weighs about 270 kg, which makes handling and transportation more practical.
Main Parameters
| Parameter | Reference Specification |
|---|---|
| Product Name | 321 Bailey Bridge |
| Type | Type 321 Modular Steel Bridge |
| Bailey Panel Size | Approx. 3.0 m × 1.4–1.5 m |
| Panel Weight | Approx. 270 kg |
| Typical Span | Approx. 9–63 m |
| Structural Form | Single-layer, double-layer and multi-row configurations |
| Connection | Pin-connected |
| Deck | Steel deck system |
| Material | High-strength structural steel |
| Application | Temporary and semi-permanent bridge |
The final span, deck width, truss arrangement, and load capacity should be determined according to the project design and site conditions. Published Type 321 products use different configurations, so the actual specifications should be confirmed for each bridge project.
Applications
The 321 Bailey Bridge can be used for construction access, temporary roads, river crossings, and emergency transportation.
It can provide temporary traffic access during bridge maintenance or road construction.
Its modular components are also suitable for remote areas where transportation and lifting conditions are limited.
We can configure the number of Bailey panels and supporting components according to the required span, deck width, and load condition.
Jiangsu Jiuzhou Bridge
Jiangsu Jiuzhou Bridge Engineering Co., Ltd. manufactures and supplies Bailey bridges, Bailey panels, steel supports, and steel bridge accessories.
The 321 Bailey Bridge can be configured according to project requirements.
Send us the required span, load, or deck width, and we can discuss the suitable bridge configuration with you.
