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The GWD-Type bridge originated in Germany and was introduced into China for mass production through the analysis of its structure by Great Wall engineers.
The introduction of GWD-Type bridge stems from the technical barriers and deficiencies of Bailey Bridge. As is known to all, Bailey Bridge is a common prefabricated steel bridge structure, which is the upper and lower bearing bridge beam with the single pin connecting truss unit as the main beam of the bridge span structure, which has the advantages of simple structure, strong adaptability and good interchangeability. But even if the load is not large, it can only reach 60 meters per single span.
Therefore, Great Wall Heavy Industry launched the GWD-Type bridge. Although the truss adopts larger steel, the structure is simpler, which not only has the advantage of strong adaptability of prefabricated Bailey steel bridge, but also makes up for the limit of span, improves the length of single span and saves the cost of bridge pier.
| Model Alias: CD450, CD, 450-type, HBD60 |
| Aplication scop of D-shaped steel bridge |
| Extra Width Single lane : Bridge deck net width:4.2m. Maximum Free Span Length: 82.836m |
| Std. Double lanes : Bridge deck net width:7.35m. Maximum Free Span Length: 91.44m |
| Panel Dimension: 3048mm (10ft) |
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