Emergency Bailey Bridge/bailey Emergency Bridge
The Type 321 Bailey Bridge is designed primarily for one-way traffic, with a standard carriageway width of 3.7 meters, suitable for loads such as car-10, car-15, car-20, track-50, and trailer-80. Although the one-way design of the Type 321 Bailey Bridge can meet a variety of load requirements, it has certain limitations in terms of multi-lane traffic requirements.
### Multi-lane adaptability of the Type 321 Bailey Bridge
- **Single lane design**: The standard design of the Type 321 Bailey Bridge is a single lane with a carriageway width of 3.7 meters. This design performs well in one-way traffic, but for multi-lane traffic requirements, additional design and modification are required.
- **Dual lane modification**: Although the Type 321 Bailey Bridge is primarily designed as a single lane, in some cases two-lane traffic can be achieved by splicing two sets of one-way bridges side by side. However, this modification needs to consider the load-bearing capacity and stability of the bridge to ensure that it can safely carry two-lane traffic.
- **Load capacity**: The 321 Bailey Bridge is capable of carrying a variety of load levels, including 500 kN for tracked loads and 300 kN for tires (130 kN for axle pressure). This makes it highly adaptable in single-lane traffic, but for multi-lane traffic, it is necessary to ensure that the overall load-bearing capacity of the bridge can meet the needs.
### Multi-lane requirements in practical applications
- **Temporary traffic solutions**: In some emergency situations, such as rescue operations after natural disasters or temporary passages during construction, the 321 Bailey Bridge can be spliced side by side to achieve two-lane traffic to meet temporary multi-lane traffic needs.
- **Long-term use**: For long-term multi-lane traffic needs, the 321 Bailey Bridge may require more complex design and reinforcement to ensure its stability and load-bearing capacity.
### Summary
The 321 Bailey Bridge is designed mainly for single-lane traffic, but in some cases it can be spliced side by side to achieve two-lane traffic. For multi-lane traffic needs, the load-bearing capacity and stability of the bridge need to be considered and appropriately designed and modified. In practical applications, the Type 321 Bailey Bridge can meet a variety of traffic needs, including temporary multi-lane traffic, through flexible assembly methods.
Specifications:
| CB200 Truss Press Limited Table |
| NO. | Internal Force | Structure Form |
| Not Reinforced Model | Reinforced Model |
| SS | DS | TS | QS | SSR | DSR | TSR | QSR |
| 200 | Standard Truss Moment(kN.m) | 1034.3 | 2027.2 | 2978.8 | 3930.3 | 2165.4 | 4244.2 | 6236.4 | 8228.6 |
| 200 | Standard Truss Shear (kN) | 222.1 | 435.3 | 639.6 | 843.9 | 222.1 | 435.3 | 639.6 | 843.9 |
| 201 | High Bending Truss Moment(kN.m) | 1593.2 | 3122.8 | 4585.5 | 6054.3 | 3335.8 | 6538.2 | 9607.1 | 12676.1 |
| 202 | High Bending Truss Shear(kN) | 348 | 696 | 1044 | 1392 | 348 | 696 | 1044 | 1392 |
| 203 | Shear Force of Super High Shear Truss(kN) | 509.8 | 999.2 | 1468.2 | 1937.2 | 509.8 | 999.2 | 1468.2 | 1937.2 |
| CB200 Table of Geometric Characteristics of Truss Bridge(Half Bridge) |
| Structure | Geometric Characteristics |
| Geometric Characteristics | Chord Area(cm2) | Section Properties(cm3) | Moment of Inertia(cm4) |
| ss | SS | 25.48 | 5437 | 580174 |
| SSR | 50.96 | 10875 | 1160348 |
| DS | DS | 50.96 | 10875 | 1160348 |
| DSR1 | 76.44 | 16312 | 1740522 |
| DSR2 | 101.92 | 21750 | 2320696 |
| TS | TS | 76.44 | 16312 | 1740522 |
| TSR2 | 127.4 | 27185 | 2900870 |
| TSR3 | 152.88 | 32625 | 3481044 |
| QS | QS | 101.92 | 21750 | 2320696 |
| QSR3 | 178.36 | 38059 | 4061218 |
| QSR4 | 203.84 | 43500 | 4641392 |
| CB321(100) Truss Press Limited Table |
| No. | Lnternal Force | Structure Form |
| Not Reinforced Model | Reinforced Model |
| SS | DS | TS | DDR | SSR | DSR | TSR | DDR |
| 321(100) | Standard Truss Moment(kN.m) | 788.2 | 1576.4 | 2246.4 | 3265.4 | 1687.5 | 3375 | 4809.4 | 6750 |
| 321(100) | Standard Truss Shear (kN) | 245.2 | 490.5 | 698.9 | 490.5 | 245.2 | 490.5 | 698.9 | 490.5 |
| 321 (100) Table of geometric characteristics of truss bridge(Half bridge) |
| Type No. | Geometric Characteristics | Structure Form |
| Not Reinforced Model | Reinforced Model |
| SS | DS | TS | DDR | SSR | DSR | TSR | DDR |
| 321(100) | Section properties(cm3) | 3578.5 | 7157.1 | 10735.6 | 14817.9 | 7699.1 | 15398.3 | 23097.4 | 30641.7 |
| 321(100) | Moment of inertia(cm4) | 250497.2 | 500994.4 | 751491.6 | 2148588.8 | 577434.4 | 1154868.8 | 1732303.2 | 4596255.2 |
Advantage
Possessing the features of simple structure,
convenient transport, speedy erection
easy disassembling,
heavy loading capacity,
great stability and long fatigue life
being capable of an alternative span, loading capacity
Product Tags:
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Emergency Bailey Portable Steel Bridge Q345B TSR Structure Images
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