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Highway intelligent maintenance system and method
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.
Owner:SHANGGONG SHUZHI (CHONGQING) CONSTRUCTION TECHNOLOGY CO LTD
River channel pier anti-scouring device
The utility model discloses an anti-scouring device for a river bridge pier, which relates to the technical field of bridge engineering and comprises a bottom support hoop, a first arc-shaped protective cover, a first mounting plate and a second arc-shaped protective cover, and one end of the top of the bottom support hoop is fixedly connected with the first arc-shaped protective cover. First mounting plates are fixedly connected to the two ends of the top and the two ends of the bottom of the first arc-shaped protection cover correspondingly, a second arc-shaped protection cover is slidably connected to the other end of the top of the bottom supporting hoop, and second mounting plates are fixedly connected to the two ends of the top and the two ends of the bottom of the second arc-shaped protection cover correspondingly. According to the bottom supporting hoop, the first arc-shaped protection cover, the first mounting plate and the second arc-shaped protection cover, the bridge pier is protected on the basis of buffering water flow, and therefore the problem that an existing river channel bridge pier anti-scouring device cannot buffer the water flow, and the anti-scouring effect is poor is solved.
Owner:HARBIN XINCHANG MUNICIPAL ENGINEERING CO LTD
In-service steel bridge U rib and top plate crack double-face welding repairing method and application thereof
PendingCN120990028ABridge erection/assemblyBridge strengtheningBridge engineeringArchitectural engineering
The invention relates to the technical field of bridge engineering, in particular to an in-service steel bridge U rib and top plate crack double-face welding repairing method and application thereof. The method comprises the steps that the position of a crack is determined, a bridge deck pavement layer above the crack is removed, and the surface of a bridge deck slab in a crack area is cleaned; flattening the bridge deck slab on the two sides of the crack, and fixing the flattened bridge deck slab; u-rib internal welding construction process holes are formed; u rib inner welding reinforcing welding and weld leg increasing welding are carried out in an inner corner area where the U rib with the cracks is connected with the top plate; sealing and repairing the construction process hole; carrying out carbon arc air gouging on the crack above the bridge deck slab, and forming a gouging groove in the bridge deck slab; and polishing and multi-layer and multi-pass welding are carried out on the planed groove. The method is fused with an internal welding technology, is a comprehensive repair scheme with root treatment, double reinforcement, controllable deformation and reliable quality, thoroughly overcomes the technical defects of treatment of symptoms, no treatment of root causes, easy secondary damage, poor reliability and the like in the prior art, and remarkably prolongs the service life and the safety performance of the in-service steel bridge.
Owner:WUHAN LIXIN AUTOMATION TECH CO LTD
Large-span concrete continuous beam bridge splicing construction method based on intelligent construction
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.
Owner:CHINA RAILWAY BRIDGE BUREAU OF THE NINTH ENG CO LTD
Galvanized bridge steel wire winding device
The invention provides a galvanized bridge steel wire winding device, and relates to the technical field of bridge construction equipment, the galvanized bridge steel wire winding device comprises a connecting seat, a clamping device I, a connecting guide rail, a separable winding mechanism, a walking device and a clamping device II; the device has the advantages of being reasonable and simple in structure, low in production cost, convenient to install and complete in function, stable fixation of the device and a bridge main cable can be achieved through the synergistic effect of multiple clamping structures, the situation that the device shakes or is separated from the main cable in the operation process is effectively avoided, operation safety is guaranteed, winding uniformity of galvanized steel wires is guaranteed, and the service life of the device is prolonged. The protection effect of the main cable is improved; the winding mechanism capable of being separated and combined is adopted, the opening and closing state of the winding mechanism can be flexibly adjusted in cooperation with a specific driving structure, the device can adapt to bridge main cables with different diameters, frequent replacement of assemblies or adjustment of the overall structure is not needed, operation is convenient and fast, consumed time is short, and meanwhile the installation difficulty of winding operation of the middle section of the bridge main cable is reduced.
Owner:BAOSTEEL GRP NANTONG WIRE PROD
Efficient cable intelligent control method and system for steel box truss arch bridge
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.
Owner:GUIZHOU BRIDGE CONSTR GROUP
High-performance concrete repairing material, application and concrete structure repairing method
The invention discloses a high-performance concrete repairing material, application and a concrete structure repairing method, and belongs to the technical field of concrete structure repairing. The high-performance concrete repairing material is prepared from Portland cement, rapid hardening cement, an inert mineral admixture, an early strength agent, a submicron mineral admixture, a nano material, an anti-freezing binder, fibers, a retarder, a volume compensating agent, fine aggregate, coarse aggregate, a water reducing agent, a defoaming agent and water. Through the interaction of all the components, the functions of early strength, volume stability, freezing resistance, salt freezing resistance, fracture resistance, shrinkage resistance and the like are achieved, through the synergistic effect of all the components in the material, the overall performance of the material is improved, and the material has excellent adaptability and multifunctionality under different environmental conditions; therefore, long-term stable guarantee is provided for application in various damage scenes, and the proportion of each component of the material can be adjusted according to actual requirements of concrete structures so as to meet efficient repair in different damage scenes.
Owner:SHANDONG TRAFFIC PLANNING DESIGN INST
Rapid erection device and construction method for bridge flood damage beam and slab
Owner:ROAD & BRIDGE INT CO LTD +1
Bridge maintenance decision-making method based on big data
PendingCN121882603AData processing applicationsDesign optimisation/simulationBridge engineeringKnowledge graph
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.
Owner:JIANGSU LIANXU HIGHWAY +1
Municipal bridge anti-seismic reinforcing structure and construction method
PendingCN120945817ABridge structural detailsBridge erection/assemblyArchitectural engineeringShock resistance
The invention discloses a municipal bridge anti-seismic reinforcing structure and a construction method, and relates to the technical field of municipal engineering.The municipal bridge anti-seismic reinforcing structure comprises a base fixed to the top of a pier, a top plate fixed to the bottom of a bridge and a supporting column located between the base and the top plate, and the bottom of the supporting column is fixed to the base through a shearing bolt; the shear bolts are fractured, so that the supporting columns slide on the base, and shock isolation is carried out between the pier and the bridge; the bottom of the arc-shaped seat is in contact with the top of the supporting column and is an arc-shaped contact surface, and vibration force acting on the bridge drives the arc-shaped seat to swing at the top of the supporting column, so that the vibration force is counteracted by utilizing gravitational potential energy of the arc-shaped seat and friction force between the arc-shaped contact surfaces. Through arrangement of the memory alloy, the arc-shaped seats, the copper plates and the supporting columns, the shock resistance of the structure is effectively improved.
Owner:JIJIAN (CHONGQING) URBAN CONSTRUCTION DEVELOPMENT CO LTD
Construction method for dismantling bent cap of bridge
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.
Owner:THE SECOND ENG CO LTD OF THE CCCC THIRD HIGHWAY ENG
Support element, support structure and related aspects
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.
Owner:MODDEX NZ LP
Diamond type cable bent tower cross beam bottom die support-free overall segmented dismantling construction method
The invention discloses a support-free integral segmented dismantling construction method for a bottom die of a diamond-shaped cable bent tower cross beam. The support-free integral segmented dismantling construction method comprises the following steps that S1, the bottom die is fixed on the cable bent tower cross beam through a suspender device; s2, connection between the bottom die and the tower column is removed, and then the bottom die is integrally lowered by 1.3-1.8 m through a suspender device; s3, the bottom die is divided into a plurality of subsections in the width direction of the cable bent tower, and each subsection corresponds to one set of suspender devices; s4, lifting hooks of the first tower crane and the second tower crane are connected with the two ends of the same bottom die section correspondingly; s5, the bottom die sections connected by the lifting hooks of the first tower crane and the second tower crane are cut, so that the bottom die sections are separated from other bottom die parts; s6, the suspender device of the bottom die segment is loosened, lifting hooks of the first tower crane and the second tower crane drive the bottom die segment to move downwards, and the bottom die segment is transferred to a storage area through cooperation of the first tower crane and the second tower crane; and S7, the steps S4 to S6 are repeated until all the bottom dies are transferred to the storage area.
Owner:CRCC HARBOR & CHANNEL ENG BUREAU GRP
Intelligent sensing type expanded pier and construction method
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.
Owner:CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP CO LTD +2
Bridge cutting dynamic deviation correction method and system based on multi-modal sensing
PendingCN121246043ABiological modelsCharacter and pattern recognitionPrincipal component analysisMulti source data
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.
Owner:CHINA MCC17 GRP CO LTD
Suspension type hanging bracket for bridge reinforcing construction and construction method of suspension type hanging bracket
PendingCN120867212ABridge erection/assemblyBridge strengtheningArchitectural engineeringStructural engineering
Owner:FUJIAN HUACHENG ROAD & BRIDGE ENG CO LTD
Degradation prediction-based concrete bridge preventive maintenance decision-making method
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.
Owner:JIANGSU YANGTZE RIVER EXPRESSWAY MANAGEMENT CO LTD +1
Self-resetting energy dissipation damping device for anti-seismic support of bridge
InactiveCN120867191AClimate change adaptationBridge structural detailsResidual deformationEnergy control
The invention relates to the technical field of bridge damping devices, in particular to a self-resetting energy dissipation damping device for a bridge anti-seismic support. Comprising a damping assembly and a steel member, and the damping assembly comprises a cover plate, a locking screw rod, an elastic piece and a core body; the two cover plates are oppositely arranged and connected through a plurality of locking screws, the two ends of each locking screw make contact with the cover plates through elastic pieces, a containing space is formed between the two cover plates, the core bodies are arranged in the containing space in pairs and are in sliding connection with the locking screws, and one end of each core body is fixedly connected with a steel member; through a graded energy dissipation mechanism and a self-resetting function, energy input by an earthquake can be effectively dissipated, structural response can be controlled, damage can be reduced, residual deformation can be inhibited, the anti-seismic adaptability and post-earthquake recovery capability of a bridge structure can be remarkably enhanced, and the bridge safety requirements under multiple earthquake magnitudes and multiple working conditions can be met.
Owner:QINHUANGDAO ROAD&BRIDGE CONSTRUCT DEV CO LTD +2
Cement-based composite coiled material for emergency rescue and rapid construction method
The invention relates to the technical field of civil engineering materials, in particular to a cement-based composite coiled material for emergency rescue and a rapid construction method.The cement-based composite coiled material for emergency rescue comprises a stereoscopic three-dimensional structure fabric and hydraulic cement-based filler, the stereoscopic three-dimensional structure fabric is filled with the hydraulic cement-based filler, and the hydraulic cement-based filler is arranged in the stereoscopic three-dimensional structure fabric. One side of the bottom of the three-dimensional structure fabric further comprises a waterproof wear-resistant coating; the hydraulic cement-based filler is prepared from the following components in parts by weight: 30 to 45 parts of high belite sulphoaluminate cement, 10 to 20 parts of ordinary Portland cement, 10 to 15 parts of fly ash, 5 to 8 parts of alpha-semi-hydrated gypsum, 3 to 5 parts of an expanding agent, 0.5 to 1.5 parts of a polycarboxylic acid type water reducing agent, 25 to 35 parts of silica sand and 0.1 to 0.8 part of a thickening time control agent. The prepared cement-based composite coiled material for emergency rescue has good tensile property, and the prepared cement-based composite coiled material meets the one-day compressive strength gt; the 28-day compressive strength is gt; the pressure is 65 MPa; the one-day tensile strength is gt; 3.5 MPa, 28-day tensile strength gt; and the performance index requirement of 5.5 MPa is met.
Owner:NANJING HYDRAULIC RES INST
Floor slab erection method
PendingJP2025161167ABridge structural detailsBridge erection/assemblyFloor slabStructural engineering
To shorten the working time required for floor slab erection.SOLUTION: A floor slab erecting method includes an installation step of installing a trailing floor slab 20B adjacent to a preceding floor slab 20A installed previously, a fastening step of fastening a preceding floor slab 20A and a trailing floor slab 20B by a fastening member 40 with a spacer 40 interposed in a gap G1 between the preceding floor slab 20A and the trailing floor slab 20B, and a moving step in which at least one of a conveying truck 16 for conveying a floor slab 2b different from the preceding floor slab 20A and the following floor slab 20B and lifting trucks 15, 17 for lifting the other floor slab 2b moves the upper surfaces of the preceding floor slab 20A and the trailing floor slab 20B as a traveling surface S1.SELECTED DRAWING: Figure 4
Owner:KAJIMA CORP
Stiffening rib welding seam reinforcing structure of orthotropic steel bridge deck
The utility model relates to a reinforcing rib welding seam reinforcing structure of an orthotropic steel bridge deck slab, belongs to the technical field of bridge engineering, fully utilizes the characteristics of high strength, corrosion resistance, light weight and the like of an FRP (Fiber Reinforced Plastic) material, and has the characteristics of simple structural form and light weight. The FRP profiles are adhered to the two sides of the weld joints of the stiffening ribs of the orthotropic steel bridge deck, and the stiffening ribs of the weld joints which may generate fatigue cracks and the steel bridge deck are connected into a whole through the FRP profiles, so that the overall bearing capacity and the anti-fatigue performance of structural members are enhanced, and the repair reliability is guaranteed. And meanwhile, the method has the characteristics of easiness in construction and short construction period, and the influence of repairing and reinforcing operation on road traffic operation is reduced.
Owner:XIAN UNIV OF SCI & TECH
Bimodal detection device for underwater bridge pile and detection and repair robot system
PendingCN121721019AAnalysing solids using sonic/ultrasonic/infrasonic wavesImage analysisLaser scanningTurbid water
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.
Owner:WUHAN UNIV OF TECH
Cutting method
ActiveJP7765848B1Bridge structural detailsBridge erection/assemblyStructural engineeringMechanical engineering
To provide a cutting method with higher work efficiency. [Solution] After forming a pair of first cutting grooves 1, 1, a first annular cutting groove 10 of a relatively large diameter is formed at each of the four corners of the cut piece portion CP so as to be inscribed in the first cutting groove 1 and the second cutting groove 2, respectively, and a second annular cutting groove 20 of a relatively small diameter is formed so as to be inscribed in the first cutting groove 1 and the second cutting groove 2, respectively, and so that a part of the area surrounded by the second annular cutting groove 20 overlaps with the area surrounded by the first annular cutting groove 10, and a communicating recess RT is formed by chipping off the protruding part of the area surrounded by the second annular cutting groove 20 that does not overlap with the area surrounded by the first annular cutting groove 10.
Owner:SAGA CORE & CUTTER IND CO LTD
Double-side welding repair method for outer weld seam welding throat cracks of in-service steel bridge U-rib assembly
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.
Owner:WUHAN LIXIN AUTOMATION TECH CO LTD
Urban bridge prefabricated anti-collision wall and beam assembly gap outer formwork system and urban bridge disease anti-collision wall replacement construction method
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.
Owner:SHANGHAI MUNICIPAL CONSTR
Road and bridge crack reinforcing structure
ActiveCN223880223UClimate change adaptationBridge erection/assemblyArchitectural engineeringStructural engineering
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.
Owner:毕洋
Bridge external prestress reinforcing structure
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.
Owner:ANHUI ZHONGJIU PLANNING & DESIGN CO LTD
Reinforcing structure of bridge beam plate
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.
Owner:BINZHOU HIGHWAY EXPLORATION DESIGN INST
A smart force-measuring support and a method for quick sensor replacement
This application relates to an intelligent force-measuring support and a method for quickly replacing its sensor. The support includes: a sensor pad with a receiving groove; a support body disposed within the receiving groove and used for connection to a main beam; a force sensor disposed at the bottom of the receiving groove for monitoring the force on the support body; and a replacement pad disposed at the bottom of the sensor pad. When the support body is embedded in the receiving groove and in contact with the force sensor, the height of the support body submerged in the receiving groove is less than the thickness of the replacement pad. When the force sensor needs to be replaced, this application only requires supporting the main beam to relieve the pressure on the replacement pad, or lifting the main beam 1-2 mm to separate the sensor pad from the replacement pad, and then pulling out the replacement pad. Afterward, the sensor pad can be completely detached from the support body, allowing the sensor pad to be pulled out from the bottom of the support body to replace the sensor. This enables rapid sensor replacement without replacing the support body, reducing replacement difficulty and costs.
Owner:CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD +1
Modular underwater pier reinforcing device and construction method thereof
PendingCN120967837ABridge structural detailsBridge erection/assemblyArchitectural engineeringCofferdam
The invention discloses a modular underwater pier reinforcing device and a construction method thereof, and belongs to the technical field of pier reinforcing and repairing. The device comprises a floating platform, a widened and reinforced sleeve and a buffer layer, the floating platform is provided with a platform body through hole, the platform body through hole is matched with the pier in shape, and the platform body through hole is used for containing the pier; the widened reinforcing sleeve is arranged on the floating table and provided with a sleeve channel, and the sleeve channel is used for containing the pier; when the bridge pier is located in the sleeve channel, the portion between the bridge pier and the widened reinforcing sleeve is filled with a buffer layer, and the buffer layer provides buffer for the bridge pier. The waterproof floating platform is matched with the arrangement of the widened reinforcing sleeve, cofferdam-free rapid construction can be conducted underwater, the construction period is shortened, and the repairing efficiency of pier reinforcement is improved; and the widened reinforcing sleeve is matched with the buffer layer, the advantages of a section increasing reinforcing method, an FRP reinforcing method and a steel plate wrapping reinforcing method are fused, and the repairing effect of pier reinforcing is improved.
Owner:GUANGDONG UNIV OF TECH