| 摘要 |
Light, self-supporting precast slab that can be quickly assembled on prefabricated girders of the type used in the construction of viaducts, bridges and similar constructions, characterised by projections located in the bottom part to increase the effective edge, thereby giving the bridge larger spans and enabling the installation inside the girder of conduits or pipes with large diameters, enabling it to be handled and transported by road in compliance with current legislation regulating the transporting of large loads. The present invention contributes the major advantage of providing the bridge with larger spans and the possibility of installing conduits or pipes of a larger diameter than the height of the girder on large bridges or viaducts, thereby enabling it to be fitted quickly and the precast slabs to be safely and simply assembled on the girders, while at the same time reducing the weight of the unit through a reduced cross-section, making it easier to transport and fit.
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