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CB200
ZHONGHAI
ZHQL-CB200
The Bailey Bridge stands as one of the most innovative engineering solutions in modern history, renowned for its exceptional portability and rapid assembly. Conceived by Sir Donald Bailey, a British civil engineer, during World War II, this modular bridge was designed to address the urgent need for temporary yet sturdy crossings to support military operations. Unlike traditional bridges that required extensive construction time and heavy machinery, the Bailey Bridge revolutionized infrastructure by using prefabricated steel panels that could be transported easily and assembled by unskilled labor in harsh conditions.
At the core of its design lies a simple yet brilliant modular system. Each bridge is composed of standardized components—including steel trusses, floor beams, and decking—that fit together like a giant puzzle. This modularity allows for remarkable flexibility: Bailey Bridges can be adapted to span distances from 9 meters to over 60 meters and support loads ranging from light vehicles to heavy tanks. During World War II, these bridges played a critical role in enabling Allied forces to cross rivers, valleys, and destroyed infrastructure in Europe and the Pacific, often under enemy fire. Their speed of assembly—sometimes taking just hours instead of days—saved countless lives and ensured the smooth movement of troops and supplies.
Beyond its military origins, the Bailey Bridge has found enduring applications in civilian contexts. It remains a vital asset in disaster relief, providing emergency access to communities cut off by floods, earthquakes, or landslides. In remote regions with limited permanent infrastructure, it serves as a temporary or semi-permanent solution for connecting villages, farms, and schools. Even in modern construction, it is used to bypass damaged bridges during repairs or to support construction sites.
What makes the Bailey Bridge truly remarkable is its ability to balance simplicity, strength, and adaptability. Over eight decades since its invention, it continues to prove its worth in some of the world’s most challenging environments, a testament to Sir Donald Bailey’s vision and the timeless value of practical, innovative engineering.
| 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 |
The Bailey Bridge stands as one of the most innovative engineering solutions in modern history, renowned for its exceptional portability and rapid assembly. Conceived by Sir Donald Bailey, a British civil engineer, during World War II, this modular bridge was designed to address the urgent need for temporary yet sturdy crossings to support military operations. Unlike traditional bridges that required extensive construction time and heavy machinery, the Bailey Bridge revolutionized infrastructure by using prefabricated steel panels that could be transported easily and assembled by unskilled labor in harsh conditions.
At the core of its design lies a simple yet brilliant modular system. Each bridge is composed of standardized components—including steel trusses, floor beams, and decking—that fit together like a giant puzzle. This modularity allows for remarkable flexibility: Bailey Bridges can be adapted to span distances from 9 meters to over 60 meters and support loads ranging from light vehicles to heavy tanks. During World War II, these bridges played a critical role in enabling Allied forces to cross rivers, valleys, and destroyed infrastructure in Europe and the Pacific, often under enemy fire. Their speed of assembly—sometimes taking just hours instead of days—saved countless lives and ensured the smooth movement of troops and supplies.
Beyond its military origins, the Bailey Bridge has found enduring applications in civilian contexts. It remains a vital asset in disaster relief, providing emergency access to communities cut off by floods, earthquakes, or landslides. In remote regions with limited permanent infrastructure, it serves as a temporary or semi-permanent solution for connecting villages, farms, and schools. Even in modern construction, it is used to bypass damaged bridges during repairs or to support construction sites.
What makes the Bailey Bridge truly remarkable is its ability to balance simplicity, strength, and adaptability. Over eight decades since its invention, it continues to prove its worth in some of the world’s most challenging environments, a testament to Sir Donald Bailey’s vision and the timeless value of practical, innovative engineering.
| 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 |
