| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 014770100 | BRIDGE CONSTRUCTION METHOD | 19 |
| 20080301889 | CONSTRUCTION METHOD FOR GIRDER IN BRIDGE, CRANE FOR PULLING UP GIRDER, VEHICLE FOR CARRING GIRDER, AND GIRDER USED FOR THE SAME - A construction method for a girder in a bridge which a plurality of piers are installed in an interval in a longitudinal direction of the bridge, a plurality of copings are installed on the piers, and a plurality of girders respectively installed between the piers are installed on the copings, the method comprising the steps of: installing at least one temporary girder on a front coping of the copings and a rear coping adjacent to the rear coping of the copings; installing a crane for pulling up a girder having a girder pulling up space therein guided by the temporary girder; providing with a girder by a pre-cast method so as to install a girder on the front coping and the rear coping; providing with a vehicle for carrying a girder, the vehicle being constituted so that load of a girder to the piers carried by the vehicle is distributed to the piers through the upper surface of the girders installed in advance; introducing the vehicle carrying a first girder moving along a guide of the temporary girder to a girder pulling up space of the crane; pulling up the first girder by the crane; drawing out the vehicle backward from the girder pulling up space; moving a first temporary girder of the temporary girders from a position where the first girder is to be installed to a front of the front coping of the one of the copings and installing the first temporary girder on a next front coping installed in a next front of the front coping and the front coping; and settling the first girder on the front coping and the rear coping by the crane is disclosed. | 12-11-2008 |
| 20090013482 | Method of reinforcing a bridge - A method of repairing, reinforcing or reinstating a bridge, comprising fixing a reinforcing plate in a spaced relationship with an existing plate or girder, especially on the underside of the bridge structure, to form a closed cavity, and injecting plastics or polymer material into said cavity in liquid form, whereby said plastics or polymer material sets or cures so as to bond to said reinforcing and existing plates with sufficient strength to transfer shear forces therebetween. | 01-15-2009 |
| 20090282626 | Method of launching bridge spans in bridge construction - A method for spans launched, as self-supporting bridge beams, approximately horizontally from support structure to successive support structure without significant temporary false work or scaffolding between permanent support structures. Bridge spans assembled atop previously constructed roadbed are launched individually onto supporting structures or columns spaced at span widths beyond said roadbed. 3 individual spans are placed or assembled with a longitudinal girder into a unit atop the roadbed surface, the assembly becoming a launching truss. Load moving air cushion pallets are placed upon the roadbed beneath and before the 3 spans. The launching truss moves forward one span length beyond the roadbed end placing one span and assembled girder in cantilever. That span is disconnected from the truss and emplaced upon supporting structures, at eventual roadbed level, beyond the previously constructed roadbed. Repeated, the process completes the bridge. | 11-19-2009 |
| 20100139016 | BRIDGE AND METHOD FOR MANUFACTURING THE BRIDGE - The bridge is constructed of one inner tube and an outer tube surrounding the inner tube. The inner and outer tube are joined to each other by connecting pipes welded to the outer surface of the inner tube and to the inner surface of the outer tube so that the inner tube and the outer tube are connected to each other through said connecting pipes whereby a rigid composite structure is formed. The tubes and pipes are preferably laser welded to each other, preferably by a continuous seam. | 06-10-2010 |
| 20100175205 | Scaffold Arrangement and Method for Repairing the Edge Structure of a Concrete Bridge - A scaffold arrangement for repairing the edge structure of a concrete bridge. A steel-structured bent comprises a vertical beam that can be anchored by support members to the upper surface of the bridge. The vertical beam extends to a distance above the upper surface of the bridge. An upper horizontal beam is rigidly secured to the upper end of the vertical beam and the horizontal beam extends substantially transversely relative to the longitudinal direction of the bridge and over the edge of the bridge. A vertical column is secured to the end of the upper horizontal beam. The lower end of the vertical column extends down from the edge of the bridge. A lower horizontal beam is secured to the vertical column and extends in alignment with the upper horizontal beam. The lower horizontal beam comprises a first beam portion extending from the vertical column to a distance below the bridge so that mould walls can be fitted onto the first beam portion, and a second beam portion extending from the vertical column to an opposite direction relative to the first beam portion and supporting an access bridge. A longitudinally adjustable support bar is pivotally connected at one end to the first beam portion and at the other end is supportable against the lower surface of the bridge. | 07-15-2010 |
| 20110041267 | MULTIPURPOSE LOAD LIFTING WORK PLATFORM OR/AND COMPOSITE BRIDGE STRUCTURE - The present invention discloses a multi-purpose load lifting work platform or/and composite bridge structure, comprising a framework, at least one work platform, a drive mechanism, and an electrical control devices. One end of the pole-shaped structure is connected with the framework in a movable manner, and the other end of the pole-shaped structure is connected with the work platform in a movable manner, the work platform can run with the pole-shaped structure together. The work platform can run in a curve track relative to the framework by power, and can stop at any position in running track. This invention can provide two platforms working coordinately or a single platform working independently. The working area of the two platforms greatly exceeds that of the existing common equipment with a single platform. It can load bulky objects without sway, and can also be used as composite or assembly bridge structure. | 02-24-2011 |
| 20110126366 | METHOD OF DRAFTING AND BUILDING A PRESTRESSED CONCRETE STRUCTURE - A method of drafting and building a prestressed concrete structure comprises the steps of a) modeling the problem of finding optimum parameters of prestressing strands in the prestressed concrete structure in a mathematical optimization problem; b) using a gradient-based numerical search method to solve the mathematical optimization problem; and c) building the prestressed concrete structure in accordance with the results of step b). A prestressed concrete structure, in particular a bridge, is drafted and built according to this drafting and building method. | 06-02-2011 |
| 20110265274 | Bridge Deck Replacement Machine and the Method of Bridge Deck Replacement Using the Same - This invention relates to a bridge deck replacement and transporting equipment, in particular, relates to a bridge deck replacement machine; in addition, this invention also relates to a method of bridge deck replacement using the same. In particular, a bridge deck replacement machine in this invention comprising a frame, bridge deck supporting means set on the top the frame, and a moving unit set under the frame; wherein, said bridge deck supporting means comprises a fixed bracket and a main lift cylinder; said main lift cylinder has a first end and a second end which is opposite to said first end; said first end of said main lift cylinder is in fixed connection with said frame, while said second end of said main lift cylinder is in fixed connection with the bottom surface of said fixed bracket; at least one connection saddle for fixedly connecting to a connecting girder is set on the side of said frame; said bridge deck replacement machine further comprises an electro-hydraulic control system, and said electro-hydraulic control system controls the movement of said bridge deck supporting means. | 11-03-2011 |
| 20120216357 | CONSTRUCTING METHOD OF CABLE-STAYED BRIDGE AND TEMPORARY CABLE THEREFOR - The present invention relates to a method for constructing a cable-stayed bridge with a tensionless stay cable, including the steps for: constructing a main tower | 08-30-2012 |
| 20120260439 | BRIDGE CONSTRUCTION AND METHOD OF REPLACING BRIDGES - A bridge replacement method is disclosed. The bridge includes a deck supported by a pair of abutments, each abutment having wing walls. The deck is removed, footings are cast in holes dug behind each abutment and a pier is provided on each footing. Substantially parallel and coplanar cambered beams are provided. Each beam spans between and is supported by the piers. A brace assembly reinforces the beam camber. On each adjacent pair of beams, precast deck elements are placed, such that each element of said plurality spans the beam pair, to define at least transverse gaps between the elements and put the upper surfaces of the elements in compression in a transverse direction. The gaps are grouted. After grout curing, the brace is adjusted to reduce the beam camber and cause the upper surface of the elements to also be put into compression in a direction parallel to the beams. | 10-18-2012 |
| 20120279000 | CONSTRUCTION METHOD OF STEEL COMPOSITION GIRDER BRIDGE - The present invention relates to a construction method of a steel composite girder bridge, in which a cast-in-place deck has non-composite cross sections when applying pre-stress, and after the pre-stress has been applied, the non-composite cross sections act as composite sections by filling each position of shearing connectors with non-shrinkage mortar. | 11-08-2012 |
| 20130081215 | BRIDGE BEAM PLACEMENT SYSTEM AND APPARATUS - Beam placement during bridge construction by a carriage moving across an abutment or pier, supporting the end of a beam or pipe to position and align it on the abutment. A lift assembly lowers the end and the carriage is disengaged and moved to receive another beam, placing multiple parallel beams, without requiring a large crane. A carriage formed in sections separates to return to a new position. A screw jack or hydraulic unit moves the lift assembly, and deposits the beam on a load plate, and opposed separately-operated lift plates connected by a hinged cross-bar may form a beam-receiving basket assembly. Carriage rollers bear against a channel iron that protects underlying concrete structure from damage. A first set of rollers may bear against a horizontal surface and a second set of rollers bear against a vertical face of the abutment, aligning the carriage and beam along orthogonal axes. | 04-04-2013 |
| 20130174361 | THREE-TRUSS CONTINUOUS STEEL TRUSS GIRDER-PUSHING DEVICE AND ARRANGEMENT METHOD THEREOF - The present invention claims a three-truss continuous steel truss girder-pushing device and an arrangement method thereof. The device comprises three supporting structures of left, center and right, the three supporting structures are provided respectively with left and right side truss slideway girders and a middle truss slideway girder. The front ends of the slideway girder are provided with an operating platform where horizontal continuous pushing jacks are installed; the front ends of the left and right slideway girder and the center slideway girder are each provided with four vertical lifting jacks. The three-truss continuous steel truss girder-pushing device simultaneously pushes the two side trusses of the steel truss beam only, while the center truss slides passively, thereby improving construction efficiency and reducing construction costs. | 07-11-2013 |
| 20130239341 | BRIDGE CAP INSTALLATION SYSTEM AND METHOD - A lifting device is configured to support a bridge cap when lifting the cap onto columns under a bridge deck. The lifting device includes an upper bracket arm configured to extend over an upper surface of the deck, and a lower bracket arm configured to extend under a bottom surface of the deck, and to selectively engage the cap at opposite ends of the cap. A side bracket portion connects the lower and upper arms, and is configured to transmit a force associated with a weight of the cap to the upper arm. The upper and lower arms and the side bracket portion are configured to define an open space extending from free ends of the upper and lower arms to the side bracket portion. The space is configured to receive the deck when the lifting device is supporting the cap as the cap is being lifted onto the columns. | 09-19-2013 |
| 20140090191 | FOUNDATION SYSTEM FOR BRIDGES AND OTHER STRUCTURES - A bridge system is provided that utilizes foundation structures that are formed of the combination of precast and cast-in-place concrete. A method of constructing the combination precast and cast-in-place concrete foundation structures involves receiving at a construction site a precast concrete foundation unit having elongated upright wall members that define a channel therebetween, and multiple upright supports located within the channel; placing the precast concrete foundation unit at a desired use location; delivering concrete into the channel while the precast concrete foundation unit remains at the desired use location; and allowing the concrete to cure-in-place such that the elongated upright wall members are connected to the cured-in-place concrete by reinforcement embedded within both the cured-in-place concrete and the upright wall members. The bridge units may be placed before the pouring step to embed the bottoms of the bridge units in the cast-in-place concrete. | 04-03-2014 |
| 20150040330 | MONOLITHIC PROTECTIVE WATERPROOFING SYSTEM - A monolithic protective waterproofing system for light rail and intermodal class I railroad bridges comprehends a multiple layer product installed in-situ. It includes a sprayed on primer, a sprayed on membrane having a thickness of between 60 and 120 mils, a second sprayed on layer of membrane having a thickness of about 20 mils that is utilized as an adhesive that is rapidly covered with a resilient mat having a thickness of between approximately 6 and 12 mm, a second layer of a sprayed on primer and a top coat of sprayed on membrane of approximately 30 to 50 mils. Both the product and method of installation are disclosed. | 02-12-2015 |
| 20150052694 | METHOD FOR REPLACING SLOPED CABLES, AND TEMPORARY HANGER FOR REPLACING SLOPED CABLES - A plurality of movable temporary hangers | 02-26-2015 |
| 014770300 | Pier | 2 |
| 20090313771 | TILT-LIFT METHOD FOR ERECTING A BRIDGE - One bridge pier, two bridge girders and two supporting rods are manufactured in an approximately vertical position. The supporting rods are connected to the top of the pier and to the bridge girders. The bridge girders are brought into the horizontal final position by raising the end points of the bridge girders, which end points are located beside the pier. Finally, the end points ( | 12-24-2009 |
| 20140026335 | SYSTEM AND METHOD FOR BRIDGE REPLACEMENT - A method and apparatus for placing a pile and a pile cap includes a platform having a set of rail wheels, a tower having pairs of opposed arms which are configured to support a hoisting cable and rotatably mounted with respect to the platform. The apparatus may further include outriggers slidably mounted on opposite sides along the longitudinal axis of the platform, ground wheels oriented such that the axes of rotation are substantially parallel to the longitudinal axis of the platform, and a rotating cutting blade movably mounted to the platform proximate the tower. The apparatus also includes a platform having a set of rail wheels, a tower with an arm having a slidably mounted hoisting cable and a slidably mounted counterweight, and a positioning mechanism to selectively position the counterweight along the arm. | 01-30-2014 |
