1189results about "Bridge repair" patented technology

The invention relates to the field of intelligent transportation systems, discloses an intelligent highway maintenance system and method, and aims to solve the fundamental defects that in the prior art, the data acquisition dimension is single, the maintenance decision depends on artificial experience, and prospective prediction is lacked. The method comprises the following steps: acquiring multi-modal dynamic sensing data covering a whole road domain; constructing and updating a four-dimensional space-time digital twinborn model in real time; driving the causal graph neural network model to perform structure health state prediction and diagnosis; generating an active maintenance instruction through a multi-objective optimization engine; and the autonomous maintenance execution unit is dispatched to complete unmanned closed-loop operation. According to the method and the system, fundamental transformation of road maintenance from passive response to active prevention, from artificial experience to intelligent decision making and from discrete operation to closed-loop automation is realized, and the maintenance efficiency, the safety and the health level of the whole life cycle of the road are remarkably improved.

The invention relates to the technical field of beam bridge splicing, in particular to a large-span concrete continuous beam bridge splicing construction method based on intelligent construction. The method comprises the following steps: acquiring digital modeling data of a left bridge and a right bridge to be spliced; analyzing the digital modeling data, and determining the dynamic stress distribution of the whole construction process; acquiring deformation monitoring data in real time, analyzing the deformation monitoring data, and determining a coordinated deformation rule of the left and right bridges; and generating a splicing construction scheme according to the dynamic stress distribution and the coordinated deformation rule. And the decoupling problem of a digital model and a physical entity is eliminated. The problem of stress control blind areas is solved, stress space-time evolution is quantified, it is ensured that stress prediction covers all stages of construction, and the blind areas of a conventional static model are avoided. The problem of quantitative deficiency of the coordination deformation rule is solved, and the defect of neglecting the deformation coordination is avoided. The problem of construction decision lag is solved, the structural damage probability and temperature cracks are reduced, and coupling of construction execution and a physical mechanism is ensured.

The invention discloses a high-efficiency cable intelligent control method and system for a steel box truss arch bridge, and the method comprises the steps: 101, sampling the tensioning force of all cables according to a preset sampling period, generating the tension time sequence data of all cables, dividing the tension time sequence data of each cable into a plurality of main windows, each main window is divided into a plurality of sub-windows; 102, sub-windows in each main window are divided into static state sub-windows and dynamic state sub-windows, and the main windows with the number of the dynamic state sub-windows exceeding a dynamic number threshold value serve as dynamic section main windows; and step 103, judging whether each dynamic state sub-window in the dynamic section main window has cable drift or not, and if the cable drift occurs, adjusting the cable.

The invention relates to the technical field of bridge engineering maintenance decision, and discloses a bridge maintenance decision method based on big data. The method comprises the steps of collecting bridge monitoring data through a sensor network, performing hierarchical processing on an original data stream, identifying and packaging abnormal fluctuation, trend change and a periodic mode, and forming a structured health event sequence. And dynamically constructing and updating the digital sign profile of the bridge in combination with the design parameters and the material degradation model. And when a decision is triggered, simulating a performance evolution path under multi-factor coupling based on the profile, generating a future maintenance scene set, and matching and assembling a preliminary plan from historical cases and the knowledge graph. And outputting a final maintenance instruction list sorted according to priorities by performing resource and time coupling analysis and multi-target tradeoff on all plans. According to the method, deep analysis and prospective simulation of the bridge state are realized, and the intelligence, accuracy and performability of maintenance decision making are improved.

The invention relates to a bridge bent cap dismantling construction method, and belongs to the technical field of bridge reconstruction and extension construction. The method aims at solving the technical problems that a traditional dismantling process is low in efficiency and high in safety risk, and a reserved structure is prone to being damaged. According to the technical scheme, the method comprises the steps that cutting, blocking and hoisting equipment is planned according to the size and weight of the bent cap; a diamond wire sawing machine is adopted for cutting, and lifting force is continuously applied by hoisting equipment in the whole cutting process; construction is carried out according to the sequence that a bent cap main body part between the pier columns is cut off firstly, then a supporting system and an operation platform are erected on the pier columns, and then bent cap cantilever parts on the outer sides of the pier columns are cut off; and finally, crushing treatment and column top fine chiseling are conducted on a platform, the elevation is accurately controlled, and the steel bars are stripped. The method is mainly used for safe, efficient and accurate dismantling of the old bent cap in highway and urban bridge reconstruction and extension projects.

Described herein is a support element that may be a cantilever arm and a support structure being formed from multiple support elements for example to form a platform. Methods of assembly and use are also described. In one aspect, a support element is described with an elongated shape, a distal end and a coupling end and a cantilever form, where the coupling end of the support element is configured to couple with a structural member, the support element further configured to rotate once coupled from an inclined or declined position to a substantially horizontal plane, the support element once rotated to a substantially horizontal plane, extending generally orthogonally away from the structural member to a termination point about the distal end of the support element.

The invention relates to the technical field of bridge pier construction guidance and monitoring, in particular to an intelligent sensing type expanded pier and a construction method. The expansion pier comprises an optical fiber network system and an intelligent steel mold, and the optical fiber network system comprises armored optical fibers and reinforced protection optical fibers special for a normal water level, is embedded in an expansion section and is fixed to a steel reinforcement framework; pressure, displacement and three-dimensional positioning sensors are arranged in the intelligent steel mold, and the intelligent steel mold is connected with a construction monitoring platform through a wireless transmission module. The method comprises the steps of planning an optical fiber path based on original bridge pier stress analysis, customizing and calibrating an intelligent steel mold containing a sensor, pouring concrete and monitoring and adjusting parameters in real time after the steel mold is assembled, embedding optical fibers when the concrete is poured to a preset elevation, and regularly collecting optical fiber data and establishing a health model in a bridge operation stage. Structural expansion and health monitoring are deeply fused, the construction quality is managed and controlled in real time, the operation risk is early warned in advance, data support is provided for intelligent bridge management and maintenance, the service life of a bridge is prolonged, and the whole life cycle cost is reduced.

The invention discloses a bridge cutting dynamic deviation correction method and system based on multi-modal sensing, relates to the technical field of bridge construction and demolition, and solves the technical problems of realizing high-precision self-adaptive cutting under complex working conditions, reducing rope breakage rate and track deviation and improving construction efficiency and safety. By fusing the fiber grating, ultrasonic wave and machine vision technologies, the monitoring limitation of a single sensor is broken through, multi-mode synchronous sensing of a stress field, a temperature field, a reinforcing steel bar position and geometric deformation is realized, a complete data basis is provided for intelligent decision making, and multi-source data is fused and denoised by adopting wavelet transform and principal component analysis, so that the accuracy and the reliability of the system are improved. The robustness of the system in vibration, chipping interference and temperature drift environments is improved, and the deviation correction efficiency is continuously improved by predicting a reinforcing steel bar dense area and a stress sudden change point in real time, dynamically adjusting cutting parameters, prolonging the service life of a rope saw, reducing construction interruption and introducing a residual feedback and iterative learning mechanism.

The invention discloses a concrete bridge preventive maintenance decision-making method based on degradation prediction, and relates to the technical field of bridge degradation prediction maintenance, and the method comprises the steps: collecting the degradation characteristic data of a concrete bridge through a bridge detection device; according to the method, various types of degradation characteristic data are collected through the bridge detection equipment, the standardized bridge state characteristic vector set is generated, the data-mechanism fusion inversion model is adopted, the actually collected data and the inherent mechanism of bridge degradation are combined, the estimation result is made to better conform to the actual situation, and the estimation accuracy is improved. Dynamic data assimilation is carried out according to a state space model, a probabilistic estimation set of a degradation driving state is input into a predetermined bridge degradation mechanism model for long-term deterministic simulation prediction to generate a plurality of future performance degradation paths, and all the paths form a degradation track cloud picture reflecting prediction uncertainty; the optimal maintenance strategy set can reduce the expected life cycle cost to the maximum extent on the premise that the bridge maintenance requirement is met.

The invention relates to a bimodal detection device for an underwater bridge pile and a detection and repair robot system, and belongs to the technical field of underwater structure detection and repair robots, the bimodal detection device comprises a turbidity sensor used for continuously sampling a working water area to determine the turbidity; the main controller is used for controlling the forward-looking sonar to scan the bridge pile to obtain an acoustic image when the turbidity is greater than or equal to a preset value; the data processing unit is used for identifying a suspected disease area based on the acoustic image; the main controller is also used for controlling the laser scanner to obtain three-dimensional point cloud of the suspected disease area and controlling the visible light camera to obtain a visible light image of the suspected disease area; and the data processing unit is also used for carrying out defect identification on the bridge pile based on the three-dimensional point cloud and the visible light image. According to the bimodal detection device for the underwater bridge pile, through a bimodal detection mode combining acoustics and optics, accurate recognition of apparent defects of the bridge pile in a muddy water environment is achieved.

The invention relates to the technical field of welding, in particular to an in-service steel bridge U-rib assembly outer weld seam welding throat crack double-face welding repairing method which comprises the following steps that firstly, a U-rib inner welding construction process hole is formed in the inlaying section position, close to a crack, of a U rib; secondly, cleaning and derusting are conducted on an inner corner to-be-welded area, corresponding to the crack, of the U rib; thirdly, elevation angle welding bottom sealing is conducted on the inner angle, corresponding to the crack, of the U rib; fourthly, welding throat cracks are removed from the outer fillet weld of the U-shaped rib, a U-shaped groove is formed, and the two sides of the U-shaped groove are cleaned till the natural metal color appears; fifthly, the inner wall of the U-shaped groove is checked, and it is ensured that cracks are thoroughly removed; sixthly, the inner wall and the periphery of the U-shaped groove are cleaned up; and seventhly, filling welding is conducted on the U-shaped groove through a multi-layer and multi-pass arc welding technology. According to the method, welding is conducted from the inside first, then repairing is conducted from the outside, the problem of welding throat cracking is effectively and radically solved, and the repairing effect is obvious.

The application discloses a kind of urban bridge prefabricated crash barrier and beam assembly gap outer formwork system and urban bridge disease crash barrier replacement construction method, the outer formwork system includes the outer formwork component being attached to the outer side of prefabricated crash barrier and beam body across assembly gap, the outer formwork component includes steel formwork and the upper and lower two groups of sliding groove symmetrically welded in its inner side;Fixed rod is multiple, and the upper and lower two groups are slidably installed in two groups of the sliding groove, and the upper and lower two groups of fixed rod are respectively welded on the bottom reinforcement of prefabricated crash barrier and the top reinforcement of beam body;Reinforcing bar is welded at the intersection of fixed rod and the bottom reinforcement of prefabricated crash barrier and the intersection of fixed rod and the top reinforcement of beam body.The application has the advantages of simple installation, time-saving and labor-saving;Without the aid of climbing car, vehicle crane is carried out to install and remove outer formwork, avoids the risk of high-altitude operation, does not occupy ground traffic road, simplifies construction process, improves the safety of on-site operation.

The utility model discloses a road bridge crack reinforcing structure which comprises a road bridge, a crack and a concrete pouring body, the crack is arranged on the upper end face of the road bridge, a reinforcing plate is arranged in the crack and horizontally arranged in the crack, a groove is formed in the upper end of the reinforcing plate, and the concrete pouring body is arranged in the groove. The bottom of the groove is provided with three pouring openings, the three pouring openings are formed in the bottom of the groove side by side at equal intervals, the pouring openings communicate with the crack, an asphalt filling layer is arranged above the reinforcing plate, and the lower end of the asphalt filling layer is attached to the reinforcing plate and the concrete pouring body. According to the crack reinforcing structure, the cracks are cleaned firstly, the reinforcing plates are transversely embedded into the cracks, then gaps are filled by pouring concrete, the transverse stress strength of the reinforcing structure is improved, the repaired cracks are effectively prevented from cracking again, and the crack reinforcing effect is improved.

This invention relates to the field of bridge reinforcement technology, and more particularly to an external prestressed reinforcement structure for bridges, including a bridge body and reinforcement components. The reinforcement components include a fixing member with a fastening bolt at its lower left end. The fixing member is threadedly connected to the bridge body via the fastening bolt. This invention, by incorporating components such as a support plate, sliding roller, elastic compression plate, and return spring, can automatically adjust its position during the natural shrinkage of the concrete repair layer. The sliding roller slides at the bottom of the elastic sealing plate, and in conjunction with the tension of the return spring, continuously applies reverse pressure, ensuring that the sealing plate remains tightly fitted to the repair layer. The elastic compression plate, under the action of the support spring and telescopic sleeve, can evenly distribute pressure, adapting to the curvature changes of the repair layer, avoiding localized stress concentration, and ensuring that the sealing protection of the concrete repair layer does not fail during the shrinkage and shaping process, preventing crack recurrence.

The utility model relates to the technical field of bridge construction, in particular to a bridge beam plate reinforcing structure which comprises a box beam arranged at the upper end of a foundation pile, and a fixing mechanism is fixedly arranged on the side wall of the box beam. The fixing mechanisms on every two adjacent box girders are arranged at the same height, a transverse pulling mechanism is arranged between every two fixing mechanisms at the same height in a clamped mode, and the transverse pulling mechanisms and the fixing mechanisms are connected in a sliding mode in the longitudinal direction of the box girders. According to the reinforcing structure of the bridge beam plate, on the basis that the structure of the bridge beam plate is reinforced, the influence generated by the telescopic stress of the bridge beam plate is avoided.

The invention discloses a new and old beam UHPC transverse connection bridge floor structure and a calculation method and construction method thereof.The new and old beam UHPC transverse connection bridge floor structure comprises an old main beam, a new main beam, an old bridge floor concrete pavement layer, a new main beam bridge floor concrete pavement layer, a UHPC connecting plate, a stainless steel plate and a debonding layer structure, the new main beam is arranged on the side edge of the old main beam in parallel, and a set distance is reserved between the new main beam and the old main beam; the old bridge deck concrete pavement layer and the new main beam bridge deck concrete pavement layer are respectively paved at the tops of the old main beam and the new main beam, and a reserved connecting groove is formed at the transverse butt joint of the old main beam and the new main beam; the two ends of the stainless steel plate are arranged at the tops of the new main beam and the old main beam correspondingly, and the UHPC connecting plate is poured into the reserved connecting groove. And debonding layer structures are arranged between the UHPC connecting plates and the new and old main beams, the outer side bottoms of the debonding layer structures are arranged at the tops of the stainless steel plates, and the inner side bottoms of the debonding layer structures are supported at the tops of the new and old main beams. By additionally arranging the debonding layer, the transverse calculation length of the UHPC connecting plate is prolonged, reasonable weakening of the transverse connecting rigidity is achieved, and the transverse rigidity is dynamically adjusted by adjusting the plate thickness and length of the UHPC connecting plate.

This application relates to the technical field of arch bridge repair construction, and in particular to a method for concrete pouring in a confined space, comprising the following steps: S1, construction preparation; S1.1, transporting the pouring equipment to the pouring location; S1.2, providing formwork support; S1.3, opening pouring holes in the formwork and installing pouring pipes; S1.4, opening an overflow hole at the highest point of the pouring location; S2, pouring; S2.1, connecting the pouring equipment and the pouring pipes, and using the pouring equipment to deliver concrete into the pouring pipes; S2.2, observing whether grout is flowing from the overflow hole. If grout is flowing, observe whether the hole is full. If the hole is full, stop pouring and seal the overflow hole. This application, through the design of the overflow hole, makes it more intuitive to fill the gap between the arch corrugated steel plate and the arch web with concrete, reduces voids between the arch corrugated steel plate and the arch web, and enhances the reinforcement of the arch bridge by the arch corrugated steel plate.

The invention discloses a suspension bridge main cable with a dehumidification structure and a dehumidification method, the suspension bridge main cable comprises a cable strand, a winding wire and a wrapping tape, the winding wire is wound outside the cable strand, and the wrapping tape is wound outside the winding wire; each dehumidification assembly comprises a dehumidification inner cylinder and a shell, the inner cylinder is fixedly connected with a convex column, the convex column and the shell are integrally formed, an airflow channel is formed between the convex column and the shell, the shell is provided with a second through hole matched with the channel, one end of the channel is communicated with a negative pressure dehumidification mechanism, a moisture absorption layer is arranged outside the shell, and a heating pipe is fixedly connected in the moisture absorption layer; a one-way nozzle and a sliding movable dehumidification assembly are arranged in the inner cylinder, and the assembly sprays a dehumidification medium to the main cable through the nozzle. Compared with the prior art, dry gas can penetrate through the main cable, targeted drying is achieved, false dehumidification is avoided, and the situation that the service life of the main cable is shortened due to moisture is prevented.

The application discloses a grouting reinforcing device for bridge foundation piles and belongs to the technical field of reinforcing equipment. The device mainly aims at the problem that the existing products need to be cooperated by multiple people and their structures are easy to be damaged and maintained during actual operation, and provides the following technical scheme. The device comprises a bottom plate for bottom laying and a side protection mechanism for foundation pile reinforcement. The bottom plate and the side protection mechanism are assisted and supported by a supporting mechanism. The side protection mechanism is composed of a side plate, an extension plate and a limiting assembly. The device can be operated by one person instead of multiple people during height applicability adjustment, reduces operation difficulty and labor cost. The setting of the locking assembly not only guarantees the convenience of operation during angle adjustment, but also can share the supporting force after angle adjustment, guarantees the service life of the product, reduces the maintenance cost, and further improves the practicality of the product.

The application discloses a rope climbing device, which comprises a moving chassis, a supporting roller mechanism and at least two power mechanisms, wherein the rollers of the supporting roller mechanism are used for rolling along the handrail ropes to bear the moving chassis to move along the handrail ropes; each power mechanism comprises a power piece and a power roller connected with each other, the power piece is arranged on the moving chassis and is used for driving the power roller to rotate; wherein the power rollers of the two power mechanisms are used for being oppositely or oppositely pressed on two parallel handrail ropes to enable the power piece to drive the power roller to roll along the handrail ropes. Under the action of the power mechanisms, the moving chassis can continuously move along the handrail ropes. Obviously, the rope climbing device has the advantage of fast climbing speed, and correspondingly, the working efficiency of the main cable maintenance robot is improved.

The invention relates to an integrated dismantling method and system for an arched beam of a tied-arch bridge and a storage medium, and the method comprises the following steps: arranging a temporary supporting structure under the tied-arch bridge, and carrying out consolidation treatment on a support of the tied-arch bridge; demolition operation is carried out on the bridge deck system structure of the arch bridge in sequence; an arched girder and a stiffening girder of the main bridge are divided into a plurality of large sections in the longitudinal bridge direction, and the large sections are sequentially subjected to arched girder integrated dismantling operation; and dismantling the residual components of the arch bridge so as to complete dismantling of the arched beam of the tied-arch bridge.

The utility model discloses a high-strength bridge box beam widening structure, which relates to the technical field of bridge box beam widening structures and comprises a top plate, a corrugated steel web is mounted at the bottom end of the top plate, a bottom plate is mounted at one end of the corrugated steel web, and a supporting mechanism is mounted on one side of the corrugated steel web. The supporting strip is inserted into the second inserting opening, the first penetrating reinforcing steel bar is inserted into the surface of the third inserting opening, then the supporting strip and the first penetrating reinforcing steel bar are welded to the surfaces of the second inserting opening and the third inserting opening respectively, the first penetrating reinforcing steel bar is inserted into the surface of the first inserting opening, and then the supporting strip and the first penetrating reinforcing steel bar are welded. And the first through steel bars are fixed, so that the plates can be transversely and longitudinally limited, the whole supporting mechanism is stably supported and fixed, and the whole box beam is powerfully supported.

To provide a scaffold panel support member capable of easily installing a plate-like scaffold panel in an erected state on a horizontal member extending in a horizontal direction among a plurality of scaffold columnar members constituting a part of a scaffold.SOLUTION: A scaffold panel support member 1 is a member for supporting a plate-like scaffold panel in an erected state on at least one of a plurality of horizontal columnar members constituting a part of a suspended scaffold. The scaffold panel support member 1 has: a support member body 10 having a groove part 10a opened upward so that a lower end part of the scaffold panel can be inserted and extending in one direction and having a U-shaped cross-section which is a columnar member long in the one direction; and a horizontal columnar member connecting part 20 connected to the support member body 10 and connecting the support member body 10 to a horizontal columnar member 100b.SELECTED DRAWING: Figure 2

The utility model provides a hinge joint reinforcing device for a prefabricated hollow slab girder bridge, and relates to the technical field of hinge joint reinforcing. The prefabricated hollow slab girder bridge hinge joint reinforcing device comprises a supporting plate, an air outlet plate used for blowing air to a hinge joint is installed on the inner bottom wall of the supporting plate, a power mechanism used for providing wind power is arranged below the air outlet plate, and two connecting mechanisms arranged in a mirror image mode are arranged on the outer surface of the supporting plate; and rotatable positioning rollers are arranged at the ends, away from the air outlet plate, of the two connecting mechanisms. According to the hinge joint reinforcing device for the prefabricated hollow slab girder bridge, the positioning roller rotates and advances in the hinge joint, so that the air outlet plate is aligned with the hinge joint all the time in the moving process, dislocation is avoided during moving, the effect of avoiding dislocation is achieved, and the problem that when the air blowing position is moved and replaced, due to the fact that no limitation exists, alignment is conducted by workers is solved; and when position deviation occurs, adjustment needs to be carried out, and the operation is troublesome.

This invention provides a prestressed UHPC flexural reinforcement structure for the negative bending moment zone of a concrete bridge deck. It includes prestressed steel strands laid on the concrete bridge deck, a UHPC reinforcement layer cast into the concrete bridge deck and bonded to the prestressed steel strands to form an integral structure, a precast UHPC anchoring device, and a precast steel-UHPC turning device. The UHPC reinforcement layer is cast in place using quick-setting, shrinkage-reducing UHPC material and is reinforced with a toughening steel mesh. The precast steel-UHPC turning device redirects the prestressed steel strands from the upper edge to the lower edge of the concrete bridge deck. The prestressed steel strands are anchored to the lower edge of the concrete bridge deck by the precast UHPC anchoring device. The prestressed UHPC flexural reinforcement structure for the negative bending moment zone of a concrete bridge deck provided by this invention is convenient to construct, highly efficient in reinforcement, and has good durability. This invention also provides a design method and a construction method for the prestressed UHPC flexural reinforcement structure for the negative bending moment zone of a concrete bridge deck.

The utility model discloses a welding device for repairing a bridge inhaul cable, which relates to the technical field of bridge maintenance and comprises an inner sheath, outer sheaths are rotatably mounted on the front side and the rear side of the inner sheath respectively, and the two outer sheaths are rotatably connected with the inner sheath through two rotating assemblies respectively. Each of the inner sheath and the two groups of outer sheaths comprises two shells which are symmetrically distributed up and down, two groups of locking assemblies are symmetrically and fixedly mounted on the left and right sides of the shells of the inner sheath and the two groups of outer sheaths, and the arc-shaped groove of the driving wheel is tightly attached to the curved surface of the inhaul cable, so that the contact area and the friction force are effectively increased; therefore, it is ensured that the device has stable driving adhesive force and crawling capacity on an inclined or vertical cable face, self-locking is formed through a locking assembly and a limiting tooth block pressed by a spring through a rack, secondary fastening is assisted by a bolt, double anti-sliding guarantee is provided for an operation position, displacement generated in the welding process is prevented, and the service life of the device is prolonged. And the precision and continuity of repairing operation are ensured.

This invention relates to an integrated demolition and construction method for rebuilding a suspension bridge on the same site after demolishing an old rigid frame bridge. The method involves first demolishing the old bridge, then constructing the anchorages, main towers, and side spans of the new suspension bridge, installing the main cables and cable-mounted cranes, and using the cable-mounted cranes to dismantle the closure section of the middle span, the side spans, and the cantilever of the main beam of the middle span of the old bridge, and hoisting the steel box girder of the new suspension bridge. Simultaneously, crawler cranes are used to sequentially dismantle the closure section of the side spans, the cast-in-place section of the side spans, and the side piers of the old bridge. This invention allows for overlapping and simultaneous demolition and construction, which helps shorten the construction period. Utilizing the old bridge deck as a traction platform for the pilot cable of the new suspension bridge across the river does not affect navigation and saves costs. Using the cable-mounted cranes from the new suspension bridge construction for demolition ensures high construction efficiency and safety.

To provide a joint structure of a floor slab capable of reducing construction cost by shortening a width between joint end faces.SOLUTION: In a joint structure of the floor slab 1, a diameter-expanding bearing member 9 having a diameter larger than the diameter of a reinforcing bar is fixed to the end of the reinforcing bar 5, and storage parts 12,12.... opened to the opposite side for storing the diameter-expanding bearing member 9 are recessed in the joint ends of the opposed floor slab members 2 and 3.SELECTED DRAWING: Figure 1

The invention relates to a detachable prefabricated bridge deck slab joint connection structure and a construction method.The structure comprises two prefabricated bridge deck slabs, vertical steel plates, an upper U-shaped steel plate and a lower U-shaped steel plate, the vertical steel plates are embedded in the end faces of the prefabricated bridge deck slabs, and the free faces of the vertical steel plates of the two prefabricated bridge deck slabs are tightly attached; the upper U-shaped steel plate and the lower U-shaped steel plate are buckled on the upper edge and the lower edge of the vertical steel plate, key teeth are arranged at the tail end of the upper U-shaped steel plate, the key teeth of the upper U-shaped steel plate are inserted into the prefabricated bridge deck slab, the vertical steel plate and the lower U-shaped steel plate, and the tail ends of the key teeth are riveted with ring groove rivet lantern rings; during construction, the end faces of the vertical steel plates of the prefabricated bridge deck slab are aligned, the upper U-shaped steel plate and the lower U-shaped steel plate are sequentially installed, and the ring groove rivet lantern rings are riveted; during dismounting, the components are separated after the ring groove rivet lantern ring is broken, and the bridge deck slab is rapidly replaced. Full-mechanical connection is adopted, on-site wet pouring and welding operation is greatly reduced, the construction efficiency is high, the maintenance cost is low, and the method is suitable for permanent and temporary bridge structures.