Class / Patent application number | Description | Number of patent applications / Date published |
014740500 | GIRDER | 7 |
20080209646 | Self-Supporting Precast Slab - 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, characterized 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. | 09-04-2008 |
20090282625 | Method and Apparatus for Bridge Construction - The present invention is directed to an apparatus for use in constructing a bridge comprised of a superstructure and a substructure that supports the superstructure and is comprised of foundations and piers. In one embodiment, the apparatus is comprised of a truss structure, a trolley that is supported by the truss structure and used to move materials used to build the bridge along at least a portion of the truss, a support structure for supporting the truss structure, and rotatable lead that can receive a substructure related element from the trolley and be used to rotate the element to a desired position to further the construction of the bridge. | 11-19-2009 |
20110191967 | RIGID CONNECTION STRUCTURE OF BRIDGE PIER AND CONCRETE GIRDER - The present invention provides a rigid connection structure of a bridge pier and a concrete girder capable of drastically reducing bridging cost and reducing total quantity of steel material to be used compared to a rigid-frame bridge using steel girders and capable of flexibly forming concrete girders into a shape corresponding to a bridging site without shape restriction for steel girders. In the rigid connection structure of a bridge pier | 08-11-2011 |
20130104320 | COMPOSITE GIRDER FOR BRIDGE CONSTRUCTION | 05-02-2013 |
20130205518 | Upper Structure for Bridge - An upper structure for a bridge includes a coping placed on the top end of a pier, and a girder held by the coping, wherein a side surface of the coping and an end surface of the girder are configured as inclined surfaces (or vertical surfaces), wherein a shear key protrudes on one of the inclined surfaces (or vertical surfaces), and a shear key slot is formed in another one of the inclined surfaces (or vertical surfaces) so as to be engaged with the shear key. The present disclosure can reduce the construction cost, can realize improved structural efficiency of the bridge upper structure, can realize an easy installation of the girders, can easily combine the girders with the coping without plastering or fixing with mortar by site work, and can efficiently resist to a shear stress that may be generated in the bridge. | 08-15-2013 |
20130263392 | Upper Structure for Bridge - An upper structure for a bridge includes a coping placed on the top of a pier, and girders held by the coping, wherein the coping has girder holding grooves. The girders are installed continuously without using bridge bearings, thereby reducing the construction cost. The coping and the girders behave in an integrated state, thereby realizing improved structural efficiency. The girders are held by being fitted into the grooves, so the coping is not excessively exposed to the outside, thereby realizing a good appearance of the bridge. The girders and the coping are thy-joined together in a prestressed state using prestressed steel strands, so that the strength of the girders and the resistance to a negative bending moment can be increased. Further, the girders and the coping can be integrated with each other without being processed by site work, thereby realizing improved structural efficiency and reducing the construction period. | 10-10-2013 |
20140310893 | SYSTEM AND METHOD FOR REPAIR OF BRIDGE ABUTMENT AND CULVERT CONSTRUCTIONS - A system and method provides for repair/reconstruction of bridge and culvert constructions. Geosynthetically confined soils are used in combination with soil nails. The soil nails provide additional tensile strength below the areas reinforced with the geosynthetically confined soils. The soil nails may include both horizontal and vertical soil nails. Various forms of vertical tensioning support can be provided to include soil nails, micro-piles, sheet piling, and the like. The confined soils are installed at locations under and adjacent to the man made constructions, and can be provided in both symmetrical and asymmetrical configurations. For bridge constructions, the confined soils may be installed at a desired depth under the bridge girders, and under other primary support members of the bridge. Horizontal nails may be installed under and adjacent to the confined soils. According to the method, incremental excavation can take place so that the manmade construction being repaired may remain partially open to accommodate public travel or other intended uses, thereby limiting the impact of the repair/reconstruction effort. | 10-23-2014 |