| 摘要 |
The characteristics that turn the invention into a suitable bridge for being constructed in places of difficult access are the following: 1. the modular construction of the elements of the bridge, which facilitate and reduce costs of transport and mounting. 2. The open-sole frame with a hollow lower metallic thread filled with high-resistance concrete, which is post-tensioned and allows for a small bridge with no cant, so that not compromising the robustness of the bridge and the affordability of the structure. 3. The use of sleeves for aligning and assembling the modules in site with the required accuracy for avoiding efforts interfering in the elements of the structure. 4. The use of the obtained advantages, as described above, for lightening and saving in the substructure construction.
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