Abstract: The present disclosure relates to a field of construction engineering, and in particular to a reinforcing structure of a concrete overhead layer before a building expires. The reinforcing structure of the concrete overhead layer includes supporting structures, connecting structures, and metal members; wherein the reinforcing structure is configured to reinforce a concrete floor slab and/or a concrete beam; through holes are disposed on the concrete floor slab; each of the supporting structures passes through each of the through holes and the supporting structures are configured to support the concrete floor slab and/or the concrete beam; and each of the connecting structures is configured to fix each of the supporting structures on each of the metal members; each of the metal members is disposed on each of the through holes.

Abstract: A foam-based expansion joint seal for use in angular expansion joint segments includes a unitary elongated body having a living hinge, a hinge enclosure for containment of increased adhesive and to reduce stress concentrations, and adhesively-joined surfaces.

Abstract: A transition construction for bridging a building joint between two component parts of a building with at least one cover element that at least partially covers the building joint. The cover element is attached to a component part of the building via an anchoring structure, wherein the anchoring structure is configured such that the at least one cover element is selectively supported.

Abstract: A system creates a durable water-resistant seal in the joint between adjacent panels. The durable expansion seal system includes an elastically-compressive body, a first cover plate segment, a second cover segment, and one or more ribs which provide a seal against water when inserted between substrates and permitted to expand to fit the gap between them.

Abstract: An expansion joint system for bridging an expansion joint gap between two spaced-apart, underlying building or roadway structures. The expansion joint system includes a cover plate, at least one swing arm, sliding bearings engaged with the swing arms, and fasteners for engaging the swing arms to the cover plate. The swing arms include a receiving well configured for receiving a mechanical fastener to fasten the swing arms to the cover plate. The expansion joint system permits movement in response to a seismic or thermal event that causes expansion or contraction of the gap between structural members while maintaining coverage of the gap, and following a seismic or thermal event, the maintains a substantially-centered position of the cover plate.

Abstract: A system for attaching a flexible expansion joint to the surface of a building such as the floor of a building. The system for attaching the joint is configured to secure the joint and provide, in effect, a form up to which a top coat of material such as concrete or asphalt can applied over an existing floor structure. The system provides a universal base unit upon which common extension units can be attached and stacked to vary the height of the form for the surface coat.

Abstract: The present disclosure discloses a self-reset flexible earthquake-resistant system of the prefabricated subway station, comprising prefabricated component prestressed tendon, waterproof rubber, and rubber bearing. The main structure of station is built by connection between prestressed tendon and prefabricated component, it changes the connection methods of connection node from consolidation joint to hinged joint which makes the subway station into a flexible system, while at the same time, self-reset function is realized by prestressed tendon; “T” and “” system is combined with rubber waterproof tape, and rubber bearing which is installed in connection site of prefabricated component, multi-protection measures of waterproof is realized, earthquake-resistant effect is also realized.

Abstract: A prefabricated modular joining assembly for an industrial flooring comprising a module including a prismatic body formed by two half-portions, being separated from one another by a deformable material zone, said half-portions being made of a synthetic resin and having a metal reinforcing framework embedded therein. The joining assembly is made by a method comprising the steps of: providing a box caisson; arranging a rubber membrane in the box caisson thereby separating two zones of the box caisson; arranging in the two zones a reinforcing metal framework; casting a resin material in the box caisson thereby embedding the reinforcing metal framework therein; removing, upon setting of the resin, the module thus formed; and applying the module in a recess formed in a floor at a joint to be restored.

Abstract: A method of waterproofing a bridge expansion joint, gap between a pair of bridge decks or a bridge deck and a ground deck, implemented through a layer of primer, an elastic membrane, a waterproofing membrane, a reinforced membrane, and a repaving process. As the first step, the layer of primer is applied to adjacent ends of the pair of bridge decks or the bridge deck and the ground deck. The elastic membrane is then shaped to an inverted dome and positioned within the gap as terminal ends of the elastic membrane are thermally bonded to the layer of primer. The waterproofing membrane is then thermally bonded to the layer of primer and the elastic membrane. Then, the reinforced membrane is thermally bonded onto the waterproofing membrane along the bridge expansion joint. The repaving process is then executed to install an asphaltic plug, completing the waterproofing of the bridge expansion joint.

Abstract: An expansion joint design for supporting transfer loads. The system includes an elongated core and at least one longitudinal load-transfer member which are bonded together.

Abstract: A precast concrete beam including a substantially planar web extending longitudinally between ends of the beam; a pair of flanges formed integrally with the web, each flange extending laterally from an elongate edge of the web and extending longitudinally between the ends of the beam so as to define a structure engaging surface of the beam; and a plurality of diaphragms formed integrally with the web and the flanges, each diaphragm spanning laterally between a side of the web and one of the flanges, wherein the diaphragms are spaced apart along the beam to thereby support the flanges.

Abstract: A bridge assembly includes a plurality of platform members which may be secured to support beams via individual platform chassis which are configured to allow tool-less attachment bolt heads thereto. A plurality of specially configured clamps are attached to the free ends of the bolts and the clamps are used to secure the platform members to the platform chassis. The platform chassis are each secured to the outer support beams via L-brackets that are mounted between the chassis and support beams. The support beams include flanged channels wherein the heads of a plurality of bolts may be attached without the need for tools. The platform members may be laid in either a parallel or perpendicular orientation with respect to the outer support beams with two different clamp styles being used depending on the orientation selected.

Abstract: A transition slab connected at opposing ends to a deck compression slab and to an anchoring. The transition slab absorbs the expansions of the deck by means of compressing sheets of polymer, elastomer or the like, that are arranged in parallel spacing and integrated in the transition slab to be oriented perpendicular to the longitudinal direction of the road. The transition slab absorbs the contraction movements of the deck limited expansion due to the summation of crack openings in induced cracks. Crack planes are created by forms made of wood, polymer or the like arranged in parallel, spaced relation within the body of the transition slab.

Abstract: A spacer for sealing a joint between a first component and a second component of an entryway. The spacer may include substantially rigid support and a first gasket having a first uncompressed thickness (T1). The first gasket is attached to a first surface of the support. The first surface has at least one first boss extending therefrom by a distance (D1) such that (D1) is less than (T1). The at least one first boss is configured to abut a portion of the first component to provide the desired compression of the first gasket between the first component and the support.

Abstract: Structural element for heat-insulating purposes between two structural parts, in particular between a building and a projecting exterior part, formed of an insulating body, which is to be arranged between the two structural parts, and of reinforcing elements at least including a load-bearing element which, with the structural element in the installed state, runs through the insulating body substantially horizontally and transversely to the substantially horizontal longitudinal extent of the insulating body, and can be connected at least indirectly to the two structural parts. The load-bearing element has an additional element which encloses the load-bearing element at least in sub-regions, and at least indirectly, and the load-bearing element is produced using a lost mold (1), and the additional element is formed, at least in part, of the lost mold, and wherein the additional element is formed in two or more parts.

Abstract: An embedment tile for producing a tactilely detectable surface in a pedestrian walkway with an improved cross beam anchor.

Abstract: Structural element for heat-insulating purposes between two structural parts, in particular between a building (A) and a projecting exterior part (B), formed of an insulating body (16), which is to be arranged between the two structural parts, and of reinforcing elements in the form of at least load-bearing elements (19a, 19b) which, with the structural element (10) in the installed state, run through the insulating body substantially horizontally and transversely to the substantially horizontal longitudinal extent of the insulating body, and can be connected at least indirectly to each of the two structural parts, wherein the load-bearing element is formed in more than one part and has at least one load-bearing web (19a, 19b) and a separate compressive-force-distributing element (20a, 20b) on at least one of its end sides (22a, 22b, 22c, 22d) directed towards the one of the two structural parts, and the compressive-force-distributing element (20a, 20b) is produced from a material which has a level of thermal

Abstract: A waterproof expansion joint comprises a ballast protection plate and at least one locating device configured to retain the ballast protection plate over a deck joint. A flexible sealing member located below the ballast protection plate can include at least one flange portion and at least one expansion feature. Each expansion feature can include a shape preformed into the flexible sealing member extending downward into the deck joint and configured to deflect, enabling variation in the width of the flexible sealing member to match the width of the deck joint.

Abstract: Bridge including a bridge deck extending in a bridge direction or longitudinal direction of the bridge, and two prefab bridge railings situated on the longitudinal side of the bridge deck, wherein the bridge deck is substantially formed by one or more slabs spanning the bridge width, wherein the bridge railing includes a lower girder provided with a bearing, particularly a bearing edge, for a longitudinal edge strip of the bridge deck.

Abstract: The present invention relates to a modular ramp constructions that facilitate the passage of objects over obstacles on a surface such as a doorstep or a flight of stairs. Specifically the present invention relates to a construction that facilitates the passage of a wheelchair or other appliances used by physically handicapped persons over such obstacles. The construction comprises wedge elements (1) that can be adapted to the given dimensions and requirements of a ramp construction, to which purpose the length of the wedge elements (1) can easily be shortened and where the wedge elements (1) are provided with means (6) for releasable attachment to adjacent tile elements (8) of the modular ramp construction, thereby making it possible quite easily to assemble and afterwards dismantle the construction when it is to be adapted to another application.

Abstract: The invention relates to a device (1) for bridging an expansion joint (2) in the region of a carriageway, comprising a superstructure (5) and a substructure (6), and the superstructure (5) comprises at least one elastic element (15) and the substructure (6) forms a support for the superstructure (5). At least one holding element (19, 20) is disposed in the superstructure (5), which is at least partially embedded in the elastic element (15).

Abstract: A waterproof expansion joint comprises a ballast protection plate with one or more centering tabs. Waterproof receptacles, or T-cups, are used to provide a waterproof layer under the ballast protection plate and around the centering tabs. Sealing tape and a spray-based waterproof membrane are installed with the T-cups. Once the ballast protection plate is placed over the deck joint with centering tabs extending downward into the T-cups, a bond breaker is applied. Finally, a second layer of waterproof membrane is applied to the top of all elements of the waterproof expansion joint.

Abstract: A loading ramp for a vehicle that includes at least three articulated sections. The ramp is assembled to and stored on a floor of the vehicle. The ramp is extended from the vehicle with at least one section being retained on the floor. The sections outboard of the vehicle are retained in alignment at a ramp angle with the first section being pivoted relative to the last floor retained section to the ramp angle. A power extension and retraction device may be provided that drives the loading ramp reciprocally relative to the vehicle. Side edge guards are provided on the sides of the loading ramp and may be folded over when the loading ramp is stored.

Abstract: An example method of expanding a highway have a multiple lanes passing under a highway overpass bridge having a center pier is described. The center pier may be between lanes passing in opposite directions. The center pier may be replaced with two replacement central piers having a gap there between. Additional lanes may be added through the gap between the replacement central piers. Various methods of construction and detailed designs for such bridges are also described.

Abstract: Disclosed herein is an anti-expansion joint bridge which eliminates an expansion joint structure from an upper structure thereof, and includes a plurality of slidable steel plates to cover a space between girders or floor slabs expanding and contracting on piers and asphalt concrete pavement on the steel plates, so that expansion and contraction of the girders occurring on the piers is prevented from affecting the pavement, thereby ensuring smooth travel of vehicles thereon. The anti-expansion joint bridge includes a pair of expandable/contractible girders separated from each other while constituting an upper structure of the bridge, a plurality of sliding plates overlapping each other on the girders while covering a gap between the girders, and an ascon part covering the pair of girders together with the sliding plates.

Abstract: A prefabricated steel bridge or viaduct structure, which is formed essentially of three blocks fabricated and pre-assembled in factory, and assembled together to the construction site. Once the blocks mounted thereon the concrete pillars, a surface drain for evacuating water is installed thereof to be casted therein a concrete slab and after covered from asphalt with drip slope.

Abstract: Modular plastic structural composites having a web section disposed along a horizontal axis and at least one flange section disposed along a horizontal axis parallel thereto and integrally molded to engage the top or bottom surface of the web section, wherein said composite is formed from a mixture of (A) high density polyolefin and (B) a thermoplastic-coated fiber material, poly-styrene, or a combination thereof. Composites molded in the form of I-Beams and bridges constructed therefrom are also disclosed.

Abstract: A drainage system grate assembly for covering and allowing fluid passage into a watercourse includes: a crossbar having a plurality of spaced-apart upstanding knuckles defining a plurality of spaced-apart channels therebetween, each of the knuckles having a pin-receiving hole; a plurality of tread bars positioned in the channels between the knuckles of the crossbar, each tread bar having a pin-receiving hole axially aligned with the pin-receiving holes of the knuckles; and a pin positioned within pin-receiving holes in the knuckles and the tread bars, to secure the tread bars in the crossbar.

Abstract: A connection assembly for a modular footbridge having two or more bridge segments, the connection assembly comprising a first connector member and a second connector member, wherein one segment of the modular footbridge is provided with the first connector member and is connectable to another adjacently disposed segment having the second connector member by connecting the first connector member to the second connector member.

Abstract: An earthquake-resistant flat expansion joint using a hinge is provided which includes an expansion joint main body disposed between opposite ends of deck slabs of a bridge or an elevated road, hinged to one side of the deck slab at its one end to enable behavior in X, Y and Z-axis directions, and expanded or shrunk depending on temperature variation and vibrations due to earthquakes to be moved in the X, Y and Z-axis directions, an expansion/shrinkage member connected to one end of the expansion joint main body to accommodate the behavior in X, Y and Z-axis directions due to expansion and shrinkage of the expansion joint main body caused by temperature variation and occurrence of the earthquakes, a hinge shaft support member installed at one end of the deck slab to support a lower part and side parts of a hinge shaft part of the expansion joint main body, an expansion joint support member installed at one end of the other deck slab to support lower parts of an expansion part of the expansion joint main body a

Abstract: A large resisting distortion and modularized comb-type bridge expansion joint, comprises at least two modules located parallel in the direction of a bridge's width, and each module includes a fixed comb plate (2) and a movable comb plate (1), which are respectively disposed on girders located at the two sides of the bridge expansion joint, said movable comb plate (1) crosses over the bridge expansion joint, both of said fixed comb plate (2) and said movable comb plate (1) have a plurality of comb teeth (22), (11) at their opposite ends, and the comb teeth (11) of said movable comb plate (1) interdigitate with the comb teeth (22) of said fixed comb plate (2), characterized in that the root of said movable comb plate (1) rotatablely joints with a seat (5) fixed on the girders, and the comb teeth (22) of said fixed comb plate (2) rotatablely joints with the root of said fixed comb plate (2), while, the middle of the comb teeth (22) of said fixed comb plate (2) is movably set on an underlay (6) fixed on the girde

Abstract: A large resisting distortion and modularized comb-type bridge expansion joint, comprises at least two modules located parallel in the direction of a bridge's width, and each module includes a fixed comb plate (2) and a movable comb plate (1), which are respectively disposed on girders located at the two sides of the bridge expansion joint, said movable comb plate (1) crosses over the bridge expansion joint, both of said fixed comb plate (2) and said movable comb plate (1) have a plurality of comb teeth (22), (11) at their opposite ends, and the comb teeth (11) of said movable comb plate (1) interdigitate with the comb teeth (22) of said fixed comb plate (2) characterized in that the root of said movable comb plate (1) rotatably joints with a seat (5) fixed on the girders, and the comb teeth (22) of said fixed comb plate (2) rotatably joints with the root of said fixed comb plate (2), while, the middle of the comb teeth (22) of said fixed comb plate (2) is movably set on an underlay (6) fixed on the girders an

Abstract: A bridge structure, comprising: a deck (1) for supporting a load thereon; first and second abutments (13a, b) which support respective ends of the deck and bear a compressive load from backfill (5) at the respective outer sides thereof; and at least one displacement compensation unit (21) which is configured such as to accommodate longitudinal displacement of the deck and maintain a predeterminable longitudinal force between the abutments, wherein the at least one displacement compensation unit has a load-displacement characteristic which provides for a reduced rate of change in the longitudinal force with longitudinal displacement of the deck as compared to a conventional bridge structure which incorporates no displacement compensation unit.

Abstract: An expansion joint system which is provided to accommodate forces applied to highway construction during normal changes in ambient conditions, and which is also designed to withstand seismic forces and vehicular forces, which may be applied in transverse and longitudinal directions. The system includes spaced-apart transverse vehicle load bearing members which are placed in a gap defined between adjacent sections of highway construction, longitudinally extending support members positioned beneath the load bearing members, means embedded within the adjacent roadway sections that control longitudinal, transverse and vertical movement, and a mechanism for controlling the spacing between the transverse load bearing beams. Preferably, this mechanism maintains a substantially equal distance between the transverse load bearing beam members.

Abstract: A large resisting distortion combo-type bridge expansion device, comprises fixed comb plate 2 and moveable comb plate 1 which are respectively disposed on the girder 10 where at the two sides of the bridge expansion device, the moveable comb plate 1 has comb teeth 11 interdigitate with the comb teeth 21 of the fixed comb plate, the moved comb plate 1 has a rotating shaft 8 at the bottom of its second end, and the two ends of the rotating shaft 8 pivot in the shaft seat 7 which is directly or indirectly fixed on the girders 10. In the present invention the second end of the moveable comb plate is rotatable, by which the moved comb plate will rotate round the girders when the girders have deflection distortion and the ends of the girders are raising or sinking. Therefore, the moved comb plate can keep flat to avoid damage of the expansion device, and to ensure that the vehicle can pass safely and smoothly.

Abstract: A joint stabilizing apparatus having an expandable cylindrical housing is inserted into a circular hole drilled at a “loose joint” of a concrete slab that is to be stabilized against relative vertical displacement between adjacent slab sections. The hole is drilled downward into the concrete, centered on the plane of a lateral opening/joint in the concrete slab. The expandable housing comprises two rigid semi-circular housing halves, and the assembly is oriented inside of the circular hole such that the two housing halves are on opposite sides of the centerline of the lateral opening/joint. The housing halves are pushed apart by turning of a threaded bolt inside of the housing. Turning of the bolt causes two bi-laterally symmetric wedge blocks to draw towards each other, and pressing the bearing surfaces of the wedge blocks against inclined surfaces inside of the respective housing halves.

Abstract: An expansion joint system for roadway constructions is provided incorporating dampers that are designed to protect the roadway constructions from the effects of disturbances caused by seismic events and vehicular traffic by absorbing and dissipating mechanical vibration energy.

Abstract: A fiber reinforced polymer composite deck module is used to form a deck constructed by assembling the deck modules.

Abstract: A backer rod adapted for insertion into a construction joint having a polymeric foam body of closed-cell construction and a foraminous skin with both open and closed cells. The backer rod, when compressively inserted into a construction joint, is impervious to hot and cold sealants alike and maintains the seal integrity during the extremes of expansion and contraction. The backer rod is usable over the temperature range of ?70 to 450 degrees Fahrenheit. The backer rod hereof is a continuously extruded closed-cell foam body that is degassed by a secondary extrusion. The skin portion is formed by heat treating the exterior of the polymeric foam body so as to create microperforations therein.

Abstract: An expansion joint system which is provided to accommodate forces applied to highway construction during normal changes in ambient conditions, and which is also designed to withstand seismic forces and vehicular forces, which may be applied in transverse and longitudinal directions. The system includes spaced-apart transverse vehicle load bearing members which are placed in a gap defined between adjacent sections of highway construction, longitudinally extending support members positioned beneath the load bearing members, means embedded within the adjacent roadway sections that control longitudinal, transverse and vertical movement, and a mechanism for controlling the spacing between the transverse load bearing beams. Preferably, this mechanism maintains a substantially equal distance between the transverse load bearing beam members.

Abstract: 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 modules are positioned over a plurality of girders so that longitudinal joints are formed above the girder. In the repair of an old bridge, an old section of the bridge deck is removed, and the modules are positioned on the existing girders. The modules are attached to the girders such that a shear connection is provided therebetween. Precompression may also be applied to clamp the sides of adjacent deck portions together. Various embodiments disclose this precompression and the shear connections.

Abstract: An expansion joint includes a first mounting element and a second mounting element spaced therefrom. A membrane having opposed side edges extends between the first and second mounting elements. A device or layer is provided for securing the opposed side edges of the membrane to a respective one of the first and second mounting elements. A layer of a sealant material is located between the first and second mounting elements. A resilient body is located between the first and second mounting elements. The resilient body is positioned between the membrane and the layer of joint sealant material.

Abstract: An expansion joint system which is provided to accommodate forces applied to highway construction during normal changes in ambient conditions, and which is also designed to withstand seismic forces and vehicular forces, which may be applied in transverse and longitudinal directions. The system includes spaced-apart transverse vehicle load bearing members which are placed in a gap defined between adjacent sections of highway construction, longitudinally extending support members positioned beneath the load bearing members, means embedded within the adjacent roadway sections that control longitudinal, transverse and vertical movement, and a mechanism for controlling the spacing between the transverse load bearing beams. Preferably, this mechanism maintains a substantially equal distance between the transverse load bearing beam members.

Abstract: A prestressed concrete panel for a bridge construction includes a first section having at least one tension member extending therethrough. A second section of the panel is spaced from the first section to form a gap therebetween. The tension member extends through the second section also and across the gap. The gap is adapted to be aligned above a support beam or girder. At least one compression member also extends between the first and second sections and across the gap in such a manner such that the gap is maintained against the tension forces of the tension member.

Abstract: A system for sealing joints in roadways wherein nose plates are attached to each side of the joint to form a gap between the nose plates. A lower seal element is located in the gap between the nose plates. A vapor barrier is provided that extends between the top portions of the two nose plates. The vapor barrier includes edges that are attached to the tops of the nose plates utilizing anchor caps. An upper seal may be included that is located on top of the lower seal element. The upper seal is formed by applying a liquid sealant over the lower seal element and vapor barrier or by installing a preformed gasket that is anchored to the nose plates using the anchor caps.

Abstract: A bridge expansion joint assembly includes at least a first expansion module and a second expansion module on opposing bridge structures. The first expansion module includes a first hinge pivotally mounted to a first bridge structure so the first hinge can rotate about a first axis, and a first group of fingers pivotally mounted to the first hinge so the first group of fingers can rotate about a second axis. The second expansion module includes a second hinge pivotally mounted to a second bridge structure so the second hinge can rotate about a third axis, and a second group of fingers mounted, either fixedly or pivotally, to the second hinge. The first group of fingers and the second group of fingers are interdigitated and rest upon a sliding support.

Abstract: A composite structural member with pre-compression assembly. The apparatus comprises a plurality of longitudinally extending composite units. Each composite unit comprises a plurality of longitudinally extending girders or beams disposed on the bridge supports and a deck portion made of a moldable material and attached to the beams. Pre-compression is used for clamping adjacent units together such that a gap or hardened grout-filled joint between the deck portions thereof is substantially closed. The pre-compression portion of the apparatus includes a threaded member disposed through holes in facing beams of adjacent composite units with a fastener engaging the threaded member so that tightening of the fastener on the threaded member pulls the adjacent units together. The deck portions of the composite units may use a tongue-in-groove construction, and adhesive may be placed in the gap between the deck portions.

Abstract: The joint is installed between two sections of roadway respectively supported by two contiguous structural elements. A driving surface is formed by a surface covering applied on top of the elements and interrupted above the gap separating them to form a trench. A closure member is placed in the base of the trench covering the gap, after which granulates and a binder which form a flexible material on curing are poured in. Before pouring in the granulates and binder, reinforcements are laid in the trench which are attached to the two structural elements at either end of the closure member. These reinforcements are perforated to allow the granulates to pass through. They therefore provide reinforcement for the joint in areas where there is a risk of tearing due to traction forces which tend to move the elements apart.

Abstract: A vibration resistant expansion joint is provided. The expansion joint includes a sustaining pedestal (1) which is formed from two L-shaped members (111 and 112). A plurality of shim assemblies (12), each containing a bifurcated tooth-like shim (121), are pivotally joined to the sustaining pedestal (1). Additionally provided is a foundation (3) formed of two L-shaped side members, each side member having a slide surface (33, 34) formed along a bottom edge thereof. A stepped bench unit (2), formed of a pair of benches, is slidably mounted on foundation (3).

Abstract: A bridge assembly includes a plurality of platform members which may be secured to support beams via individual platform chassis which are configured to allow tool-less attachment bolt heads thereto. A plurality of specially configured clamps are attached to the free ends of the bolts and the clamps are used to secure the platform members to the platform chassis. The platform chassis are each secured to the outer support beams via L-brackets that are mounted between the chassis and support beams. The support beams include flanged channels wherein the heads of a plurality of bolts may be attached without the need for tools. The platform members may be laid in either a parallel or perpendicular orientation with respect to the outer support beams with two different clamp styles being used depending on the orientation selected.