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CB200
ZHONGHAI
ZHQL-CB200
Temporary trestle bridges are specialized short-term structures defined by their elevated framework of vertical supports (trestles) and horizontal decking, designed to tackle challenging terrain—such as wetlands, deep mud, or shallow water—where traditional temporary bridges struggle. Unlike solid-beam or truss bridges, their modular trestle design prioritizes quick assembly, low ground disruption, and adaptability, making them indispensable for construction, mining, disaster relief, and outdoor recreation.
The core of a temporary trestle bridge is its trestle framework: evenly spaced vertical posts (often made of steel or treated wood) that rest on stable ground or floating bases (for water crossings). These posts support horizontal stringers, which in turn hold the bridge’s decking. This elevated structure keeps the deck above muddy, flooded, or uneven terrain, ensuring safe passage for pedestrians, light vehicles, or construction equipment. Steel is the material of choice for durability—steel trestles resist rot, corrosion (with galvanized coatings), and heavy loads, while remaining lightweight enough for manual or small-machinery installation.
Speed of deployment is a defining strength. Most temporary trestle bridges use prefabricated components: trestle posts, stringers, and decking (steel or composite panels) can be transported in standard trucks and assembled by a small crew in days—even in remote areas. For example, a 50-meter trestle bridge for a mining site can be built in under a week, letting workers and equipment access otherwise unreachable areas without waiting for permanent infrastructure. This speed is critical in disaster relief too: after floods leave fields waterlogged, trestle bridges restore access to villages faster than earth-filled crossings.
Versatility across terrains sets these bridges apart. In wetlands, their narrow trestles minimize damage to fragile ecosystems (unlike wide embankments). In shallow rivers, floating trestle bases adapt to changing water levels. For construction projects like highway expansions, they span trenches or construction zones, keeping workers and materials moving without disrupting existing traffic. Many designs are also adjustable: trestle heights can be modified to match terrain slopes, and deck widths can be tailored for pedestrian-only use or small utility vehicles.
While temporary, these bridges don’t compromise on safety. They include handrails, non-slip decking, and stability bracing to handle daily use, and can be easily disassembled once the short-term need ends—components are reusable for future projects, reducing waste and costs.
Temporary trestle bridges fill a unique niche: they turn unpassable terrain into usable routes, proving that short-term infrastructure can be both agile and reliable when time and terrain are challenges.
| 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 |
Temporary trestle bridges are specialized short-term structures defined by their elevated framework of vertical supports (trestles) and horizontal decking, designed to tackle challenging terrain—such as wetlands, deep mud, or shallow water—where traditional temporary bridges struggle. Unlike solid-beam or truss bridges, their modular trestle design prioritizes quick assembly, low ground disruption, and adaptability, making them indispensable for construction, mining, disaster relief, and outdoor recreation.
The core of a temporary trestle bridge is its trestle framework: evenly spaced vertical posts (often made of steel or treated wood) that rest on stable ground or floating bases (for water crossings). These posts support horizontal stringers, which in turn hold the bridge’s decking. This elevated structure keeps the deck above muddy, flooded, or uneven terrain, ensuring safe passage for pedestrians, light vehicles, or construction equipment. Steel is the material of choice for durability—steel trestles resist rot, corrosion (with galvanized coatings), and heavy loads, while remaining lightweight enough for manual or small-machinery installation.
Speed of deployment is a defining strength. Most temporary trestle bridges use prefabricated components: trestle posts, stringers, and decking (steel or composite panels) can be transported in standard trucks and assembled by a small crew in days—even in remote areas. For example, a 50-meter trestle bridge for a mining site can be built in under a week, letting workers and equipment access otherwise unreachable areas without waiting for permanent infrastructure. This speed is critical in disaster relief too: after floods leave fields waterlogged, trestle bridges restore access to villages faster than earth-filled crossings.
Versatility across terrains sets these bridges apart. In wetlands, their narrow trestles minimize damage to fragile ecosystems (unlike wide embankments). In shallow rivers, floating trestle bases adapt to changing water levels. For construction projects like highway expansions, they span trenches or construction zones, keeping workers and materials moving without disrupting existing traffic. Many designs are also adjustable: trestle heights can be modified to match terrain slopes, and deck widths can be tailored for pedestrian-only use or small utility vehicles.
While temporary, these bridges don’t compromise on safety. They include handrails, non-slip decking, and stability bracing to handle daily use, and can be easily disassembled once the short-term need ends—components are reusable for future projects, reducing waste and costs.
Temporary trestle bridges fill a unique niche: they turn unpassable terrain into usable routes, proving that short-term infrastructure can be both agile and reliable when time and terrain are challenges.
| 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 |
