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| Number | Title | Issue Date |
| 8104130 | Bridge structure A bridge supports any desired loading capacity to cross rivers, ravines, highways, wetlands, and other areas where traffic or pedestrians conveniently access the opposite side. The structure is assembled in a number of ways at the bridge site, using smaller equipmen... | 01/31/2012 |
| 8020235 | Concrete bridge An improved prestressed concrete bridge having internal and external tensioning tendons which follow approximately similar pathways which are not straight. ... | 09/20/2011 |
| 7827642 | Hollow prestressed concrete (HPC) girder and spliced hollow prestressed concrete girder (s-HPC) bridge construction method Provided is a hollow prestressed concrete girder for forming an I-type prestressed concrete girder bridge, in which at least one hole is formed in a body portion of the I-type prestressed concrete girder. A spliced hollow prestressed concrete girder bridge, in which... | 11/09/2010 |
| 7627921 | Girder system employing bent steel plating A structural support system employs a modified inverted box girder design for improved performance and ease of fabrication. Each girder of a series of girders is formed with an upper flange section, a set of web sections extending from opposite lateral sides of the ... | 12/08/2009 |
| 7421825 | Doubly prestressed roof-ceiling construction with grid flat-soffit for extremely large spans A doubly prestressed roof-ceiling construction with grid flat soffit for extremely large-span is a prefabricated element intended for assembling roofs of extremely large-span buildings with a flat soffit. The construction includes a grid soffit construction and an u... | 09/09/2008 |
| 7418804 | Floor structure A floor structure comprises a plurality of steel beams 4 arranged in parallel, each steel beam 4 including a web, an upper flange disposed at an upper end of the web, and a lower flange disposed at a lower end of the web, a floor surface being formed o... | 09/02/2008 |
| 7373760 | Floor structure A floor structure comprises a plurality of steel beams 4 arranged in parallel, each steel beam 4 including a web, an upper flange disposed at an upper end of the web, and a lower flange disposed at a lower end of the web, a floor surface being formed o... | 05/20/2008 |
| 7373683 | Construction method for prestressed concrete girder bridges A construction method for simple bridges or continuous bridges using prestressed concrete girder (PSC girder) and precast slabs (PSC slabs) where prestress is applied to the lower portion of the center of the girder. bridges of low clearance and long span are constr... | 05/20/2008 |
| 7367075 | Girder bridge protection device using sacrifice member A girder bridge protection device. The girder protection device includes a sacrifice member having girders installed on an upper surface of a bridge seat of an abutment or pier to support a bridge floor, a symmetrical main support member connecting two of the girder... | 05/06/2008 |
| 7357084 | Guideway structure for high-speed track- bound transportation A guideway structure for high-speed track-bound transportation composed of two or more than two girder-segments. The structure of the guideway is characteristic of: At the intermediate positions on the girder top and the girder bottom of the connecting ends of the s... | 04/15/2008 |
| 7240389 | Method of constructing partially earth-anchored cable-stayed bridge using thermal prestressing technique Disclosed is a method of constructing partially earth-anchored cable-stayed bridges using a thermal prestressing technique, in which, when a steel girder-type partially earth-anchored cable-stayed bridge is built using a cantilever construction technique, the center... | 07/10/2007 |
| 7155874 | Tubular structure and modular building assembly using the same This invention relates to an elongated hollow non-deformable structure that can be used as beams and pillars of modular building structures. The structure includes first and second elongated C-shaped channels (20) with inwardly bent flanges (25) and me... | 01/02/2007 |
| 7069614 | Modular span multi-cell box girder bridge system A bridge is constructed using simply structured, longitudinal, modular deck sections or cells that are fabricated in a shop and shipped to the jobsite for quick assembly and erection. Each section has generally horizontal upper and lower members and at least one gen... | 07/04/2006 |
| 7010890 | Precast, prestressed concrete truss A precast, prestressed concrete truss which spans between exterior columns and forms an interior or exterior load bearing wall of a building. The truss includes top and bottom chords interconnected by at least one web member. Prestressed reinforcing members in the t... | 03/14/2006 |
| 7003837 | Bridge construction system A method of constructing a bridge including forming a concrete slab remote from the bridge, the slab having a side with at least one bolt hole therein, orienting the side of the concrete slab substantially parallel to the side of a girder so that the bolt hole of th... | 02/28/2006 |
| 6915615 | Prestressed composite truss girder and construction method of the same The present invention relates to prestressed composite truss girder and construction method of the same. The prestressed composite truss girder of the present invention comprises a concrete bottom plate having structure of composite truss; a lower-chord member being... | 07/12/2005 |
| 6910828 | Shopping cart collection, storage, and retrieval system A self-guiding shopping cart collection, storage, and retrieval system is provided which is integrated into the parking lot construction. A collection channel is adjacent and parallel to a row of parking spaces which is formed as an inset trough configured to allow ... | 06/28/2005 |
| 6857156 | Modular bridge structure construction and repair system A modular structure construction and repair system for use in new bridge construction and old bridge repair. The invention comprises a plurality of prefabricated modules which have a plurality of longitudinally extending beams and deck portions molded thereto. The m... | 02/22/2005 |
| 6751821 | Prestressed concrete girder of adjustable load bearing capacity for bridge and adjustment method for load bearing capacity of bridge A prestressed concrete girder having an adjustable load bearing capacity includes a concrete girder including an upper flange, and at least one non-attached steel wire installed in the upper flange of the girder and extending in a lengthwise direction of the girder.... | 06/22/2004 |
| 6493895 | Truss enhanced bridge girder A truss for distributing a maximum bending moment normally occurring at a midpoint region of a girder (430) includes a first truss segment member (505) having first and second ends, a second truss segment member (420) having first and second ends, a third... | 12/17/2002 |
| 6470524 | Composite bridge superstructure with precast deck elements A method for constructing a composite bridge superstructure of simple precast elements. According to the method, the bridge superstucture is comprised of one or more prestressed beams aligned substantially parallel to the bridge longitudinal axis. On top ... | 10/29/2002 |
| 6381793 | Composite deck system and method of construction Elongated composite deck sections or panels are formed by pultruding a plastics resin material with multiple layers or mats of glass fibers and longitudinally extending unidirectional fibers to form a base wall integrally connecting upwardly projecting an... | 05/07/2002 |
| 6151743 | Structural panel for bridging between spaced supports A method for forming a structural panel such as for a bridge deck includes providing a first and a second sheet formed by fibers and settable resin and laminating the sheets with a plurality of parallel side by side connection members. The connection memb... | 11/28/2000 |
| 6145270 | Plasticon-optimized composite beam system A composite beam system that can be used for the framing system in bridges or buildings and provide enhanced corrosion protection includes a fiber reinforced plastic beam shell with compression and tension reinforcement. The compression reinforcement cons... | 11/14/2000 |
| 6081955 | Modular polymer matrix composite support structure and methods of constructing same A load bearing support structure in the form of a traffic-bearing highway bridge including at least one modular structural section. The at least one modular structural section includes at least one beam, the at least one beam containing a pair of lateral ... | 07/04/2000 |
| 6055693 | Railway short span trestle bridge A railway short span trestle is designed for quick erection at an installation site by assembly of a minimum number of parts. Those parts include a pair of spaced apart girders and whatever number of modular floor assemblies are required to span the lengt... | 05/02/2000 |
| 6023806 | Modular polymer matrix composite support structure and methods of constructing same A load bearing support structure in the form of a traffic-bearing highway bridge including at least one modular structural section. The at least one modular structural section includes at least one beam, the beam comprising a pair of lateral flanges and a... | 02/15/2000 |
| 6018834 | Method for building a bridge and bridge built according to said method Method for building bridges and bridge built according to the method especially a girder bridge with one, two or more girders or longitudinal beams resting on supports at abutments or the like. The novelty lies therein that the girder or longitudinal beam... | 02/01/2000 |
| 6003183 | Modular bridge section A modular bridge section including one or more box girders, wherein at least one box girder 1, 1' is equipped with at least one lower chord structure 5, 5', which is mounted floatingly at or in the box girder 1, 1' in the loaded state only between the end... | 12/21/1999 |
| 5966764 | Roll beam girder system for bridges The roll beam girder system for bridges has beams constructed from two end sections and a keystone center section. The two end sections have a top rolled steel beam welded to a bottom rolled steel beam, the top beam comprising about two-thirds of the tota... | 10/19/1999 |
| 5920937 | Covering apparatus for concrete bridge beams and pillars A system for covering and protecting the supporting structure of a bridge. The system is generally comprised of first plates positioned in covering relation over the top surface of the support pillars and second plates positioned in covering relation over... | 07/13/1999 |
| 5893187 | Reinforcing structure for hinge section of gerber bridge A reinforcing structure for a hinge section of a Gerber bridge including first and second girders (10, 11) which are connected with each other through the hinge section, comprises reinforcing steels (13a, 14a) continuously established on at least one of u... | 04/13/1999 |
| 5870789 | Precast bridges Bearing shoes that run under the abutment's axis with cradles whose precast walls are placed over the bearing shoe assembly, so that when the concrete is poured over these bearing shoes, an integral unit of the bearing shoe integrated with the cradle is f... | 02/16/1999 |
| 5867855 | Method for connecting precast concrete girders A method for connecting precast concrete girders by tensioning temporary tendons lower than the neutral axes of girders, supporting the girders at the both ends, placing concrete into the gap, tensioning the tendons which connect adjacent girders while re... | 02/09/1999 |
| 5813070 | Chord section arrangement with lower chord with integrated guide groove of a bridge section that can be laid mechanically A bridge section made of light metal including a vertical web, an upper chord section connected to an upper end of the vertical web and a lower chord section connected to a lower end of the vertical web. The upper chord includes a thick-walled horizontal ... | 09/29/1998 |
| 5655243 | Method for connecting precast concrete beams A connection method for connecting precast concrete beams involves supporting both ends of the precast concrete beams, lifting up the central points of the precast concrete beams, placing concrete in the gaps between the ends of the precast concrete beams... | 08/12/1997 |
| 5568667 | Structure to interconnect two branches of a suspension bridge framework in correspondence of a pier supporting the catenary A suspension bridge having end piers from which the bridge is suspended. The bridge has a substantially fixed stiff horizontal branch (P1) and a substantially flexible horizontal branch (P2). Each bridge branch (P1, P2) comprises three parallel longitudin... | 10/29/1996 |
| 5553439 | Composite, prestressed structural members and methods of forming same A composite, prestressed structural member and methods of forming such a member. The apparatus includes a plurality of longitudinally extending girders and a deck unit attached thereto. The deck unit may comprise a plurality of adjacent composite units di... | 09/10/1996 |
| 5487199 | Vandalism prevention device for highway bridges An apparatus and method are disclosed for preventing or inhibiting the vandalism of bridges and other like structures. The apparatus includes a slant plate device having an elongate plate which is positioned so as to extend downwardly and outwardly from a... | 01/30/1996 |
| 5471694 | Prefabricated bridge with prestressed elements A prefabricated bridge beam with prestressed elements comprising a rectangular girder-box assembly which includes a bottom plate prestressed in compression and a pair of upstanding side members each having their upper portions prestressed in tension and a... | 12/05/1995 |
