What are the advantages of the Great Wall heavy steel bridge

Zhenjiang Great Wall Heavy Industry Technology Co. ltd. (here and after called Great Wall ) is located at Zhenjiang city, South of Yangtze River, belonging to Yangtze River Delta economic zone, owning railway station of Shanghai-Nanjing and Shanghai-Beijing High-speed raillways; 30 kilometers away from Zhenjiang seaport, 50 kilometers away from Changzhou airport, 70 kilometers away from Nanjing airport, and Yangzhou-Taizhou airport; Great Wall has passed ISO Quality Management System Certificate; its WPS and welders have passed BV certification; the raw material and finished products are accepted by International Third Testing Institute such as SGS,CCIC,CNAS etc.; In addition, Great Wall has several independent R & D patents

321-Type（British Compact-100） prefabricated highway steel bridge and 200-Type prefabricated highway steel bridge ( Bailey bridge) are main products of Great Wall, which has a full set of components production line for complete bailey bridge set. More than this, Great Wall has developed a kind of large span prefabricated D-Type bridge whose single span can be up to 91 meters, and has completed the load test already and engineering application of the whole bridge.

Structural Advantage

The structure of a steel bridge is mainly composed of bailey panel support beams and steel pipe friction piles. This structure possesses the following advantages:

Lightweight: Composed of standardized truss elements fabricated from high-strength steel, the steel bridge is relatively lightweight.

Modularity: The main characteristic of the steel bridge is its modularity, which enables it to be rapidly assembled into trussed beam bridges with various spans and loads as per requirements.

Swift Construction: The components can be processed ashore in advance and assembled on-site, significantly enhancing the construction speed.

Strong Adaptability: Suitable for a wide range of different geographical environments and construction conditions.

Connection Mode Advantage

The connection mode of the steel bridge presents the following advantages:

Welded Joints: Welded joints can be readily applied at the intersections of steel in different directions, angles, and shapes. There is no need to attach connection plates or drill holes in the steel, maintaining the integrity of the section.

Bolt Connection: Divided into ordinary and high-strength types, it is easy to install, particularly suitable for on-site installation connections.

Rivet Connection: Rivets are typically made of ordinary carbon riveted steel with good plasticity and forging performance at the top. The connection deformation is small, force transmission is reliable, and quality inspection is straightforward.

Application Scenario Advantage

The steel bridge has distinct advantages in the following scenarios:

Emergency Rescue: The steel bridge has a strong disaster relief and rescue function, especially in flood control, collapse, subsidence, and quicksand rescue and relief, with high efficiency.

Environmental Protection Effect: The steel bridge can be reused, generally 3-5 times, offering a favorable environmental protection effect.

In summary, the steel bridge features lightweight structure, high modularity, rapid construction speed, strong adaptability, diverse connection methods, and wide application scenarios. These advantages make the steel bridge an ideal solution for temporary bridges in various engineering constructions.