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The medium-sized girder bridge is made of high-strength 7019 series aluminum alloy and has the characteristics of modular and rapid assembly. It can be erected manually by 9 to 12 people, supports MLC 70-level track load, and the maximum span can be extended to 49 meters, supporting bulk procurement.
7019 aluminum alloy
Material:
MLC70
Load:
manual rapid erection
Assembly:
The 7019 series aluminum-zinc-magnesium alloy conforming to aviation standards is adopted, and the yield strength exceeds 350MPa. Compared with the traditional steel bridge, the weight is reduced by 40%, while ensuring the heavy bearing capacity of MLC grade 70, the weight of a single component is not more than 200kg, which is convenient for manual handling.
All components are produced by precision molds with tolerances controlled within 0.2mm to ensure seamless docking between the pin and the hole. The modular design allows only a single component to be replaced in the event of damage, eliminating the need to dismantle the entire bridge, and reducing maintenance costs by 60%.
The structural design optimizes the mechanical transfer path without the need for heavy lifting equipment. A construction team of 12 people can complete the erection of 1 9.8-meter single-story bridge in 45 minutes, greatly shortening the response time of emergency projects.
The system supports multiple configurations of single-layer, double-layer, and reinforced components. The single-layer structure is suitable for a short span of 9.8 meters, and the maximum span of the double-layer reinforced structure can reach 49.4 meters, which is flexible to adapt to rivers or gully obstacles of different widths.
The surface of aluminum alloy is treated with anodizing and special coating, and the salt spray test tolerance time is more than 1000 hours. Designed to have a fatigue life of more than 10,000 full-load traffic cycles, it is suitable for harsh field and humid environments.
The bridge deck is wide and paved with anti-skid panels, which not only supports the passage of MLC 70 (about 63.5 tons) crawler excavators, but also carries MLC 100 (about 90 tons) wheeled transport vehicles to meet the traffic needs of heavy infrastructure equipment.
| Parameter Items | Single Storey | Double Storey |
| Maximum span | 9.8 meters | 31.1 meters (reinforced version up to 49.4 meters) |
| Effective bridge deck width | 4.0 meters | 4.0 meters |
| Track load rating | MLC 70 (approximately 63.5 tons) | MLC 70 (approximately 63.5 tons) |
| Wheel load rating | MLC 70 | MLC 100 (approximately 90.7 tons) |
| Main materials | Aluminum-zinc-magnesium alloy | Aluminum-zinc-magnesium alloy |
| Setup time (12 people) | Approximately 45 minutes | Approximately 60-90 minutes |
| Maximum weight of component | < 200 kg (single piece) | < 200 kg (single piece) |
| Operating temperature range | -40°C to +50°C | -40°C to +50°C |
Suitable for projects with heavy machinery dispatch in remote areas or undeveloped terrain. The medium-sized beam bridge can quickly build a temporary channel for heavy equipment such as excavators and cranes to cross the gully to ensure that the progress of the project is not hindered by the terrain.
For flood destroyed bridges or earthquake rescue scenarios, the product can restore the traffic lifeline at the fastest speed. Its lightweight design allows manual assembly by helicopter lifting to core disaster areas that vehicles cannot reach.
It is applicable to the construction of temporary road network in complex terrain of mining area. Its high corrosion resistance and fatigue resistance can meet the traffic needs of high-frequency heavy-duty trucks in the mining area, and it is more cost-effective and flexible than permanent concrete bridges.
In the construction of transmission towers or dams, it is often necessary to transport supplies across rivers. The detachable and reusable characteristics of the bridge system greatly reduce the construction cost of temporary access roads, and can be recycled and reused in different places after the completion of the project.
Provide on-site erection guidance and team practical training to ensure that construction personnel master unarmed assembly skills. Commitment to provide a 10-year spare parts supply guarantee, for damaged standard module components, guaranteed to issue replacement parts within 72 hours.
In the case of standard maintenance and regular inspection of pin shaft wear, the design service life can reach more than 20 years. The main stressed members undergo full-scale fatigue testing, and it is recommended to perform a structural flaw detection inspection after every 1000 heavy loads.
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The medium-sized girder bridge is made of high-strength 7019 series aluminum alloy and has the characteristics of modular and rapid assembly. It can be erected manually by 9 to 12 people, supports MLC 70-level track load, and the maximum span can be extended to 49 meters, supporting bulk procurement.
Material:
7019 aluminum alloy
Load:
MLC70
Assembly:
manual rapid erection
The 7019 series aluminum-zinc-magnesium alloy conforming to aviation standards is adopted, and the yield strength exceeds 350MPa. Compared with the traditional steel bridge, the weight is reduced by 40%, while ensuring the heavy bearing capacity of MLC grade 70, the weight of a single component is not more than 200kg, which is convenient for manual handling.
All components are produced by precision molds with tolerances controlled within 0.2mm to ensure seamless docking between the pin and the hole. The modular design allows only a single component to be replaced in the event of damage, eliminating the need to dismantle the entire bridge, and reducing maintenance costs by 60%.
The structural design optimizes the mechanical transfer path without the need for heavy lifting equipment. A construction team of 12 people can complete the erection of 1 9.8-meter single-story bridge in 45 minutes, greatly shortening the response time of emergency projects.
The system supports multiple configurations of single-layer, double-layer, and reinforced components. The single-layer structure is suitable for a short span of 9.8 meters, and the maximum span of the double-layer reinforced structure can reach 49.4 meters, which is flexible to adapt to rivers or gully obstacles of different widths.
The surface of aluminum alloy is treated with anodizing and special coating, and the salt spray test tolerance time is more than 1000 hours. Designed to have a fatigue life of more than 10,000 full-load traffic cycles, it is suitable for harsh field and humid environments.
The bridge deck is wide and paved with anti-skid panels, which not only supports the passage of MLC 70 (about 63.5 tons) crawler excavators, but also carries MLC 100 (about 90 tons) wheeled transport vehicles to meet the traffic needs of heavy infrastructure equipment.
| Parameter Items | Single Storey | Double Storey |
| Maximum span | 9.8 meters | 31.1 meters (reinforced version up to 49.4 meters) |
| Effective bridge deck width | 4.0 meters | 4.0 meters |
| Track load rating | MLC 70 (approximately 63.5 tons) | MLC 70 (approximately 63.5 tons) |
| Wheel load rating | MLC 70 | MLC 100 (approximately 90.7 tons) |
| Main materials | Aluminum-zinc-magnesium alloy | Aluminum-zinc-magnesium alloy |
| Setup time (12 people) | Approximately 45 minutes | Approximately 60-90 minutes |
| Maximum weight of component | < 200 kg (single piece) | < 200 kg (single piece) |
| Operating temperature range | -40°C to +50°C | -40°C to +50°C |
Suitable for projects with heavy machinery dispatch in remote areas or undeveloped terrain. The medium-sized beam bridge can quickly build a temporary channel for heavy equipment such as excavators and cranes to cross the gully to ensure that the progress of the project is not hindered by the terrain.
For flood destroyed bridges or earthquake rescue scenarios, the product can restore the traffic lifeline at the fastest speed. Its lightweight design allows manual assembly by helicopter lifting to core disaster areas that vehicles cannot reach.
It is applicable to the construction of temporary road network in complex terrain of mining area. Its high corrosion resistance and fatigue resistance can meet the traffic needs of high-frequency heavy-duty trucks in the mining area, and it is more cost-effective and flexible than permanent concrete bridges.
In the construction of transmission towers or dams, it is often necessary to transport supplies across rivers. The detachable and reusable characteristics of the bridge system greatly reduce the construction cost of temporary access roads, and can be recycled and reused in different places after the completion of the project.