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CB200
ZHONGHAI
ZHQL-CB200
The Bailey Panel is the fundamental building block of the iconic Bailey Bridge, serving as the backbone that enables the structure’s unmatched portability, strength, and rapid assembly. Without these standardized, prefabricated steel units, the Bailey Bridge’s transformative impact on military and civilian infrastructure would not have been possible. Designed alongside the bridge itself by Sir Donald Bailey during World War II, each panel is a masterclass in practical engineering, blending simplicity with remarkable structural integrity.
A typical Bailey Panel features a rectangular steel frame, usually measuring around 3 meters long and 1.5 meters high, constructed from high-strength steel angles and channels. The panel’s design includes precision-drilled holes along its edges, which allow it to connect seamlessly to other panels using bolts or pins—no specialized tools or advanced engineering skills required. This interlocking system is the key to the Bailey Bridge’s modularity: panels can be combined horizontally to extend the bridge’s length, stacked vertically to increase load-bearing capacity, or arranged in different configurations to adapt to varying span requirements. Whether spanning a narrow stream or a wide river, the panels form a rigid truss structure that distributes weight evenly, supporting everything from foot traffic to heavy military vehicles.
Beyond its structural role, the Bailey Panel’s portability is a game-changer. Each panel is lightweight enough to be carried by a small team of workers or transported via trucks, helicopters, or even boats—critical for military operations in remote or war-torn areas where heavy equipment is unavailable. During World War II, this portability allowed Allied forces to assemble bridges in hours, often under enemy fire, turning impassable terrain into usable routes. In civilian settings, it remains invaluable: during disaster relief, panels can be quickly shipped to areas hit by floods or earthquakes, enabling emergency teams to build temporary crossings and deliver aid.
Today, the Bailey Panel continues to be a vital component in infrastructure projects worldwide. Its durability—resistant to corrosion and wear—ensures it can withstand harsh weather conditions, while its standardized design means replacement panels are easy to produce and source. As a core element of one of history’s most innovative engineering solutions, the Bailey Panel stands as a testament to how thoughtful, modular design can solve complex logistical and structural challenges.
| 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 | |
The Bailey Panel is the fundamental building block of the iconic Bailey Bridge, serving as the backbone that enables the structure’s unmatched portability, strength, and rapid assembly. Without these standardized, prefabricated steel units, the Bailey Bridge’s transformative impact on military and civilian infrastructure would not have been possible. Designed alongside the bridge itself by Sir Donald Bailey during World War II, each panel is a masterclass in practical engineering, blending simplicity with remarkable structural integrity.
A typical Bailey Panel features a rectangular steel frame, usually measuring around 3 meters long and 1.5 meters high, constructed from high-strength steel angles and channels. The panel’s design includes precision-drilled holes along its edges, which allow it to connect seamlessly to other panels using bolts or pins—no specialized tools or advanced engineering skills required. This interlocking system is the key to the Bailey Bridge’s modularity: panels can be combined horizontally to extend the bridge’s length, stacked vertically to increase load-bearing capacity, or arranged in different configurations to adapt to varying span requirements. Whether spanning a narrow stream or a wide river, the panels form a rigid truss structure that distributes weight evenly, supporting everything from foot traffic to heavy military vehicles.
Beyond its structural role, the Bailey Panel’s portability is a game-changer. Each panel is lightweight enough to be carried by a small team of workers or transported via trucks, helicopters, or even boats—critical for military operations in remote or war-torn areas where heavy equipment is unavailable. During World War II, this portability allowed Allied forces to assemble bridges in hours, often under enemy fire, turning impassable terrain into usable routes. In civilian settings, it remains invaluable: during disaster relief, panels can be quickly shipped to areas hit by floods or earthquakes, enabling emergency teams to build temporary crossings and deliver aid.
Today, the Bailey Panel continues to be a vital component in infrastructure projects worldwide. Its durability—resistant to corrosion and wear—ensures it can withstand harsh weather conditions, while its standardized design means replacement panels are easy to produce and source. As a core element of one of history’s most innovative engineering solutions, the Bailey Panel stands as a testament to how thoughtful, modular design can solve complex logistical and structural challenges.
| 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 | |