54results about "Bridge structural details" patented technology

A flange connection system for a concrete structure comprising a plurality of adjacent precast concrete members including a platform having a center panel and a first and second flange extending outward from the center panel in opposing directions. The system includes a first and second bent plate each having a horizontal member attached to the bottom surface of the adjacent flanges and a vertical member perpendicular to the horizontal member. The system includes a spacer plate extending in a vertical direction from about a lower edge of the first vertical member to below the first horizontal member and secured between the vertical members of the first and second bent plate with a plurality of fasteners. The first and second vertical member may flex at an upper portion allowing adjacent flange ends to move relative to one another.

The invention discloses a hyperbolic bridge pier and hyperbolic bridge pier and tower. The bridge pier comprises a bridge pier lower structure, a bridge pier bifurcation structure and a longitudinal linking structure, wherein, the bifurcation starting point of the bridge pier bifurcation structure is fixed on the top of the bridge pier lower structure; two bifurcation components of the bifurcation structure are fixed on the top of the bridge pier by the longitudinal linking structure; and the projections of the outer contour line of the bridge pier along the vertical direction on the bridge longitudinal and lateral directions are hyperbolic. The bridge pier and tower comprise the above bridge pier and a bridge tower, wherein the bridge tower comprises a bright tower bifurcation structure; the middle hollow part of the bright tower bifurcation structure forms a bright hole penetrated by the girder of the bright; the four bifurcation components of the bridge tower bifurcation structure are hinged or fixed to the above two bifurcation components of the bifurcation structure to form a quadrilateral with an upward hollow part along the bridge. The hyperbolic bridge pier and hyperbolic bridge pier and tower have the advantages of strong overall rigidity, good stability, convenient construction, wide application range, attractive appearance and good economy.

The invention discloses an online damage early-warning method of a modular expansion joint of a cable-supported bridge. An overall finite-element model of a beam end is established; a mathematical relevance model of main-beam mid-span deflection and support-beam strain and a mathematical relevance model of a vehicle load and center-beam strain are established according to the finite-element model;a vertical deflection sensor is arranged in a main beam span of the bridge to obtain a daily maximum value of main-beam vertical-deflection, and daily total weight of the vehicle load is obtained byvehicle load information collected by toll stations; and daily support-beam strain and daily center-beam strain are calculated on the basis of the relevance models and the actually measured main-beammid-span deflection and vehicle load, and thus damage early-warning and analysis of a support beam and a center beam of the modular expansion joint are carried out online. According to the method, theproblem of real-time analysis and early-warning of damage between the support beam and the center beam of the expansion joint of the bridge is solved, and protection of the bridge damage and improvement of safety are facilitated.

Provided is a steel bridge deck pavement structure with reinforced construction. The steel bridge deck pavement structure is jointly composed of a prefabricated reinforced steel plate (1), an anticorrosion layer (2), a waterproof layer (3), a lower surface layer (4), a fiber grid (5) and an upper surface layer (6) from bottom to top, and is characterized in that the top surface of the prefabricated reinforced steel plate (1) is provided with the reinforced construction, the fiber grid (5) is composed of longitudinal grid ribs (51) and transverse grid ribs (52) in a mutual interlaced mode, theinteriors of the lower surface layer (4) and the upper surface layer (6) are mixed with reinforced short fibers, and the fiber grid (5) is poured between the lower surface layer (4) and the upper surface layer (6) or into the upper surface layer (6), and achieves common working with the lower surface layer (4) and the upper surface layer (6) through surface construction. The steel bridge deck pavement structure with the reinforced construction has a good interlayer bonding performance, and can effectively prevent the risk of interlayer cracking and pavement layer fatigue cracking, meanwhile, through a novel prefabricated reinforced steel plate mode, the construction technology is simplified, the construction efficiency is greatly improved, the production installment cost is saved, the building cost of projects is reduced, and the normal use and durability needs of a bridge structure can be met.

The invention discloses a bridge detection structure and a detection method thereof. The bridge detection structure comprises a detection ship, an overwater device installed on the detection ship andused for being close to a pier, a fixing device installed on the overwater device and used for surrounding the pier, a lifting device installed on the fixing device and used for entering underwater, and a detection device installed on the lifting device and used for detecting defects of the pier. The overwater device comprises a base, an adjusting assembly installed on the base and a fixing base which is installed on the adjusting assembly and is always parallel to the horizontal plane in the moving process. The fixing device comprises a driving assembly and a supporting assembly installed onthe driving assembly. The lifting device comprises a lifting assembly and an underwater platform assembly installed on the lifting assembly. The bridge detection structure overcomes the defects of theprior art, provides the special underwater detection structure for the bridge pier, and solves the problems that the existing underwater detection of the bridge pier depends on manpower, and the working intensity is high and the detection risk is high.

The invention discloses a cooling overbridge, and belongs to the technical field of overbridges. The overbridge comprises an overbridge body, guardrails and handrails are arranged on the two sides of the overbridge body, the overbridge body comprises a bridge floor upper layer and a bridge floor lower layer, water pipes which are regularly arranged side by side are installed between the upper layer and the lower layer, the water pipes are communicated with water tanks arranged on the overbridge, the periphery of each water tank is provided with a water pump and a water main, each water pump is connected with a water outlet of the corresponding water tank and the corresponding water main, water mains are connected with the water pipes between the upper layer and the lower layer, flowing water which is filled into the water tanks circulates between the water tanks and the water pipes and absorbs heat of the upper layer of the bridge floor covering on the water pipes, and the water pumps are connected with a controller arranged on the overbridge. According to the cooling overbridge, a double-layer bridge floor structure is adopted, the water pipes are installed between the double-layer structure, the cooling function is achieved through the flowing water, and the problems that in the prior art, the bridge floor of the overbridge is hot, and the heat wave is large are solved; the cooling overbridge has the advantages of being simple in structure and obvious in cooling effect.

The invention relates to a buffering and energy dissipation collision avoidance device for a bridge. The buffering and energy dissipation collision avoidance device comprises a collision avoidance structure which sleeves the periphery of a bearing platform of a pier or a collision avoidance pier or a channel pier of the bridge and is provided with a long sliding chute, wherein buffers are distributed between the long sliding chute of the collision avoidance structure and two ends of the bearing platform of the pier or the collision avoidance pier or the channel pier; buffering devices are distributed between the long sliding chute of the collision avoidance structure and two sides of the bearing platform of the pier or the collision avoidance pier or the channel pier; the head of the collision avoidance structure is a streamline-shaped head or a leftwards inverted E-shaped head; height limiting frames for preventing ship collision are arranged on the collision avoidance structure in front of the bridge and on two sides of a channel. The buffering and energy dissipation collision avoidance device for the bridge has the technical advantages that when a ship collides with the head of the collision avoidance structure and the height limiting frames for preventing ship collision, the long sliding chute of the collision avoidance structure moves to press the buffers to do work to dissipate kinetic energy of the ship; meanwhile, under the guide of a leftwards inverted E-shaped slope or a streamline-shaped guide surface at the head of the collision avoidance structure, the ship is subjected to deviation rectification, and the height limiting frames stop a superhigh ship and protect a bridge frame of the bridge; when the side of the ship collides with the collision avoidance structure, the buffering devices on the long sliding chute of the collision avoidance structure protect the pier or the collision avoidance pier.

The invention belongs to the field of highway construction and discloses a capping beam post tensioning end sealing construction trolley. The capping beam post tensioning end sealing construction trolley comprises a truss body, running wheels, a lifting frame, an operation platform and a driving system; bottom beams are arranged at the bottom of the truss body; the running wheels are fixedly arranged at the bottoms of the bottom beams; the truss body comprises a truss bottom beam, a truss top beam, a chord member, a counterweight and jacks; the chord member is arranged between the truss bottombeam and the truss top beam; the operation platform comprises two capping beam underpinning beams, multiple bracket lining beams, a platform plate, an adjustable screw sleeve, a carrying pole beam and two capping beam lifting rods; the top of the lifting frame is hinged at one end of the truss top beam through a pin shaft; one ends of the two capping beam underpinning beams are correspondingly hinged with the bottom of the lifting frame; the other ends of the two capping beam underpinning beams are correspondingly hinged with the capping beam lifting rods; the capping beam lifting rods are hinged with the carrying pole beam on a capping beam; one end of the adjustable screw sleeve is hinged with the lifting frame; and the other end of the adjustable screw sleeve is hinged with the operation platform. According to the capping beam post tensioning end sealing construction trolley, the construction efficiency is enhanced, and the capping beam post tensioning end sealing construction trolley can be widely applied to the construction field.

Disclosed is a waterproofing membrane that comprises a carrier sheet, a pressure sensitive adhesive layer on one surface of the carrier sheet, and a protective coating layer on the adhesive layer. The protective coating layer is highly reflective (optionally textured) and operative to bond to concrete cast against it. Preferably, the protective coating layer comprises cement, polymer, and white pigment, and may optionally or additionally include a filler, a UV absorber and an antioxidant. The protective coating layer protects the membrane against weather exposure, tolerates foot traffic and strongly adheres to concrete cast against it. Also disclosed is a waterproofing membrane comprising a carrier sheet, a pressure sensitive adhesive layer, a protective coating layer (as described above), and a highly releasable bonding layer.

The invention discloses a reinforcing device for reinforcing a bridge pier through a cofferdam-free underwater enlarging section method. The device comprises template systems and limiting devices, wherein the template systems are matched with the bridge pier in shapes, the template systems are arranged outside the bridge pier in a sleeving mode, the plurality of template systems are sequentially overlapped from bottom to top so as to cover the whole bridge pier, the template system located at the bottommost part is fixed on a bridge table, the adjacent template systems are seamlessly connectedthrough bolts I, the limiting devices are arranged between every template system and the pier, the limiting devices are matched with the bridge pier in shapes, the inner sides of the limiting devicesare fixedly installed on the outer surface of the bridge pier, and the outer sides of the limiting devices are in contact with the template systems. According to the device, the template systems andthe limiting devices can be used for construction of the cofferdam-free underwater enlarging section method for reinforcing circular, rectangular or other shape bridge piers or columns, the construction speed is high, the cost is low, and the thickness of a reinforced layer concrete can be effectively ensured to coincide with the design.

The invention discloses a waterproof cord clip comprising a first half ring and a second half ring which are detachably mounted together. First connecting strips extending axially are arranged at thetwo sides of the outer wall of the first half ring; first concave-convex teeth are arranged at the inner sides of the first connecting strips and include grooves and protrusions that are distributed alternately at intervals in the axial direction of the first half ring; and first strip-shaped half slots extending in an axial direction of the first half ring are formed in the outer side of the first connecting strips. Second connecting strips extending axially are arranged at the two sides of the outer wall of the second half ring; second concave-convex teeth are arranged at the inner sides ofthe second connecting strips and are connected with the first concave-convex teeth in a fitting manner; second strip-shaped half slots extending in an axial direction of the second half ring are formed in the outer side of the second connecting strips; and the first strip-shaped half slots and the second strip-shaped half slots are opposite to each other and form sealing space for accommodating asealing strip. Therefore, the sealing performance of connection of the first half ring and the second half ring of the cord clip is improved; and thus rainwater is prevented from entering the inside of the cord clip to protect the cord clip and the main cable from being corroded.

The invention provides a bridge rainwater pipe construction vehicle which comprises a four-wheel drive trolley, a vehicle main frame is installed on the trolley, a rotating mechanism is installed above the center of the vehicle main frame, a gear is arranged below the rotating mechanism, the rotating mechanism is driven by a driving motor installed on the vehicle main frame to rotate, and the rotating mechanism can rotate by 360 degrees in the horizontal direction. An installation part is fixedly installed above the rotating mechanism, a telescopic arm penetrates through the installation part,a lifting box is arranged at one end of the telescopic arm, a lifting arm penetrates through the lifting box, a first construction basket is arranged at the lower end of the lifting arm, a rotating arm is arranged below the first construction basket, and a second construction basket is arranged below the rotating arm. According to the invention, constructors can conveniently conduct multi-personcooperative construction operation on the first construction basket body and the second construction basket body, the safety of the constructors can be effectively guaranteed, the operation efficiencycan be effectively improved, the operation coverage area is comprehensive, the construction basket can adapt to various operation environments, the construction difficulty is reduced to a great extent, and construction is more efficient.

The invention relates to an anti-collision device for a bridge with an arched bridge opening. The anti-collision device includes abutments or bases arranged in a front area and a back area of a bridge pier or an abutment, and anti-collision navigation frames are arranged on bearing platforms of the abutments or bases. Each navigation frame includes a streamline or beveled navigation head, a navigation framework on the channel side and penetrating the bridge opening, and a buffer device, wherein the navigation frame can be placed on a linear moving mechanism which is disposed on each bearing platform, and the buffer device is arranged on the bearing platforms and is used for force balancing or delivering. The navigation frames can be provided with weight balancing devices, auxiliary supports and high limit anti-collision frames, and roller wheel devices for navigation energy dissipation are arranged on the sides of the navigation frames. The anti-collision device has the advantages that when ships yaw and collide the navigation frames, the course can be corrected under navigation of the streamline navigation heads; when the ships exceed the high limit and collide the high limit anti-collision frames, the navigation frames will be driven to drive the linear moving mechanism and make the buffer device to act, the ships consume ship collision energy, then the ship reduce speed and anchor, and thus the bridge frame can be protected.

The invention relates to a pedestrian overpass for municipal engineering, and belongs to the technical field of municipal engineering facilities, the pedestrian overpass comprises an overpass body, a plurality of drying mechanisms are arranged in the deck of the overpass body, and each drying mechanism comprises a bearing plate slidably connected to the interior of the overpass body through a sliding assembly; a drying cavity matched with the bearing plate is formed in one side of the bridge surface of the overbridge body, a drying pipe is arranged on the bearing plate through a plurality of bearing assemblies, and a drying assembly matched with the drying pipe is arranged on one side of the bridge surface of the overbridge body. According to the pedestrian overpass, the interior of the platform bridge body can be conveniently and effectively heated, so that a wet bridge surface can be conveniently and effectively dried, the situation that pedestrians slip when walking on the bridge surface of the platform bridge body can be reduced, and the walking safety of the pedestrians is improved.

The invention relates to a composite pier anti-seismic reinforcement structure and a construction method thereof. The composite pier anti-seismic reinforcement structure comprises a cover beam and a bearing platform which are connected through pier columns, a plurality of vertical grooves are formed in the peripheries of the tops and bottoms of the pier columns, preformed holes matched with the vertical grooves are formed in the lower side surface of the cover beam and the upper side surface of the bearing platform, steel bars are arranged in the vertical grooves, and the steel bars extend into the preformed holes. Common concrete layers are arranged on the peripheries of the tops and bottoms of the pier columns, wherein the vertical grooves are coated with the common concrete layers, theouter sides of the common concrete layers are circumferentially coated with FRP cloth, pouring gaps are reserved between the FRP cloth and the common concrete layers, and the pouring gaps are filled with expansion concrete layers. The composite pier anti-seismic reinforcement structure and the construction method thereof have the advantages of simple structure, reasonable design and convenient construction, joint reinforcement is carried out by the implanted steel bars and FRP materials, the shear resistance bearing capacity, deformation performance, stiffness degradation, ductility, energy dissipation capacity and the like of a pier are improved to varying degrees, the anti-seismic vulnerability of the pier is reduced, a good fixing role can be achieved, and the structure can further be used for reinforcing the pier after an earthquake.

The invention discloses a multi-damping buffer energy dissipation type bridge anti-seismic check block structure. The bridge anti-seismic check block structure comprises a steel corbel, a check blockstructure, steel baffles and damper structures, and the steel corbel is fixed to the upper portion of the side wall of a pier through steel corbel bolts; the check block structure is arranged betweenthe steel corbel and a main beam; the four steel baffles are connected with the four side walls of the check block structure through damper structures correspondingly; and the two ends of each damperstructure are connected with the check block structure and the steel baffles through damper side plate bolts respectively. Through the combined action of the multiple damper structures and a middle collision ball, earthquake energy is buffered and consumed; displacement between a beam body and the bridge piers is limited in the transverse bridge direction, the longitudinal bridge direction and thevertical direction, so beam falling is effectively prevented; and rigid collision between a bridge and the check block is converted into flexible collision inside the bridge anti-seismic check blockstructure, and collision between main bodies is transferred to the check block, so damage of earthquakes to the bridge is reduced, and damage to the check block is also reduced.

The disturbed reinforcement structure and construction method of existing bridges in deep valleys can effectively solve the problems of deformation and stability reinforcement of high-pier long-span bridges in steep slopes and valleys after disturbance, and has the characteristics of good economy, convenient construction, and environmental protection. The reinforcement structure includes: supporting pile foundations and supporting beams. The supporting pile foundations are arranged at intervals in the valley corresponding vertically to the foundation of the reinforced bridge abutment. The supporting beams are fixedly connected to the top of each supporting pile foundation, and their front ends are in close contact with the reinforced bridge abutment. , the rear end extends into the stable bedrock of the valley slope on the corresponding side of the reinforced bridge abutment; the reinforcement piles and soil retaining plates are arranged at intervals on the lower side of the valley in the influence range of the reinforced bridge abutment foundation, and the soil retaining plates are set at intervals Between the reinforcement piles and facing the upstream side of the valley; the waste muck body and the sealing layer, the waste muck body is filled in layers in the valley inside the reinforcement piles and the retaining plate, and the sealing layer is constructed on the top surface of the waste muck body.

A method for reducing the hogging moment of a composite beam at an auxiliary pier of a cable-stayed bridge under the action of live load relates to the technical field of composite beam cable-stayed bridge construction, and comprises the following steps: S1, placing an elastic support on a support padstone, installing a temporary pier above the auxiliary pier, and hoisting the composite beam to enable the elevation of the composite beam to be H0 + L1; wherein H0 is the designed elevation of the finished bridge; l1 is the arching elevation of the composite beam; S2, the upper portions of the elastic supports are fixed to the composite beam through bolts, and the lower portions of the elastic supports are fixed to support padstones through foundation bolts; S3, grouting a gap between the elastic support and the support padstone to form a grouting layer; S4, the temporary piers are dismantled, and the elastic supports are subjected to compressive deformation L1 under the action of the composite beams; in an auxiliary pier support system of the composite beam, under the live load effect of the composite beam, the elastic support generates downward vertical displacement, and the problemthat the composite beam generates hogging moment under the live load effect is solved.

The invention provides a bridge expansion joint connecting and anchoring structure which comprises a beam body, a beam body sealing end and an expansion joint device, wherein embedded anchor bars are arranged in the beam body and the beam body sealing end; the expansion joint device is arranged on the beam body sealing end and comprises deformed steel and expansion joint annular bars; concrete is poured on the beam body and the beam body sealing end; the expansion joint annular bars are in the concrete. The bridge expansion joint connecting and anchoring structure further comprises connecting steel bars, steel bar meshes and at least two pre-embedded steel plates, the two pre-embedded steel plates are arranged on the beam body and the beam body sealing end respectively, the bottom faces of the pre-embedded steel plates are connected with the pre-embedded anchor bars, the connecting steel bars are arranged on the two embedded steel plates in a crossing mode, the lower portions of the connecting steel bars are connected with the two embedded steel plates respectively, the upper portions of the connecting steel bars are connected with the expansion joint annular bars, and the steel bar meshes are arranged in the concrete and connected with the connecting steel bars and the expansion joint annular ribs respectively. The structure has the advantages of high error-tolerant rate and convenience in welding and anchoring operation.

The invention relates to the field of guardrails, and especially relates to an adjustable guardrail structure for a bridge. The guardrail structure comprises guardrails vertically arranged on two sides of the bridge, each guardrail comprises stand columns located at the two ends of the guardrail, a limiting rod extending to the position below the liquid level is arranged at the bottom of each stand column located on the upstream, an obstacle sensing system is arranged between the two limiting rods, an upper cross beam fixedly connected to the upper ends of the two stand columns and a handrailassembly located below the upper cross beam are arranged between the two stand columns located on the downstream, each stand column is of a hollow structure, a vertical stud is rotatably sleeved witheach stand column and extends downwards to the position below the liquid level, the two sides of the handrail assembly are connected to the vertical studs in a screwed mode, a driving device for driving each vertical stud to rotate is arranged at the end part of the vertical stud, and the obstacle sensing system is electrically connected with the driving devices and used for controlling the guardrail assembly to ascend and descend movably. The guardrails can be automatically adjusted to descend according to the liquid level condition so as to intercept large garbage or waterweeds, and the problems that an original fixed guardrail is single in structure and few in function are solved.

The invention relates to the field of bridge and building inhaul cables, in particular to an inhaul cable body with a fireproof shell and a manufacturing method of the inhaul cable body. The inhaul cable body with the fireproof shell comprises an inhaul cable body (1) and is characterized by further comprising fireproof paint (3), a protective sleeve (4), partition plates (5) and sealing gaskets (6), the partition plates (5) are sequentially fixed to the inner side wall of the protective sleeve (4), the inhaul cable body (1) penetrates in from one end of the protective sleeve (4) and penetrates out from the other end, and the inhaul cable body (1) and two ports of the protective sleeve (4) are sealed by the sealing gaskets (6). The manufacturing method of the inhaul cable body with the fireproof shell is characterized by comprising the following steps in sequence: 1, cutting; 2, plate welding; 3, painting: painting fireproof paint (3) on the inner side walls of two half sleeves (41) respectively; 4, splicing; and 5, sealing. The inhaul cable body is good in fireproof performance and long in service life.

The invention provides a cable bent tower box type steel anchor beam and a construction method. The construction method comprises the main construction steps: (1) conducting construction preparation;(2) checking and accepting the pre-assembly precision of the steel anchor beam; (3) integrally pre-splicing the steel anchor beams; (4) transporting the steel anchor beams; (5) mounting a lifting appliance on the steel anchor beam; (6) mounting a first section of steel anchor beam; (7) heightening and mounting the steel anchor beam tower; and (8) controlling the mounting precision of the steel anchor beam and the steel corbel. The cable bent tower box type steel anchor beam and the construction method have the advantages of being high in construction efficiency and high in assembling precision, having good technical supportability and design and application of the assembling jig frame, greatly improving the assembling construction efficiency of a steel anchor beam and a steel corbel unit,being convenient and reliable in assembling precision regulation and control and remarkable in quality control effect, and bringing good construction and economic benefits to projects and enterprises.

The invention discloses a bridge shock absorption and falling prevention device, and belongs to the field of bridge shock absorption. The bridge shock absorption and falling prevention device body includes two-way hinged supports 1, protective sleeves 5, a pair of piston rods 6, oil cylinders 7 and damp fluids 8, wherein the pair of piston rods are arranged in the bridge shock absorption and falling prevention device, the oil cylinders are filled with the damp fluids, and the hinged supports 1 are connected to panels at the ends of a bridge. Under the action of an earthquake or other external force, the displacement of the bridge can drive the piston rods 6 to move in the damp fluids 8, so that a role of reducing the effect of external forces can be played and it is ensured that the two-way hinge supports at both ends can play a role under the action of external forces in most directions, and meanwhile when the tension reaches the limit, the bridge is locked, thus falling of the bridge is effectively prevented. According to the bridge shock absorption and falling prevention device, the energy brought by the external force is consumed, the large displacement of the bridge is limited, the bridge can be locked to be prevented from falling when the bridge moves beyond the displacement, the fatigue property is good, installation and disassembly are convenient, and the application range is wide.