248 results about "Bridge type" patented technology

The invention provides a VAE-ALSTM-based bridge structure state anomaly detection method and system, and the method comprises the steps: carrying out the standardization and sliding window segmentation of vibration monitoring data, extracting potential features through a variational auto-encoder, and carrying out the time sequence prediction and reconstruction in combination with an attention-enhanced long-short-term memory network, thereby achieving the detection of the abnormal state of a bridge structure. Fusing the prediction error and the reconstruction error to generate an abnormal score; a threshold value is automatically set through quartile distance statistics, and self-adaptive judgment under different bridge types is achieved; when the score crosses the boundary, real-time alarm is triggered; the system correspondingly comprises a data preprocessing and sample construction module, a VAE-ALSTM model construction module, a training stage prediction and reconstruction module, an error calculation and anomaly scoring module, a threshold setting module and an anomaly judgment and alarm module. The method and the system do not need manual threshold parameter adjustment, are high in precision and good in real-time performance, and can be widely applied to the fields of bridge health monitoring, operation and maintenance early warning and the like.

The invention discloses a bridge substructure modeling scheme generation method and device, equipment and a medium, and relates to the technical field of bridge engineering, and the method comprises the steps: obtaining bridge superstructure design input parameters, constructing substructure design task information, and generating design parameters through big language model reasoning; and a modeling script is automatically generated, and structural response calculation is carried out. Different modeling strategies are judged and executed according to the calculation result, finally, a target modeling scheme meeting the requirement is intelligently generated, design parameter generation and automatic modeling of the bridge substructure in a non-standard bridge type scene are achieved, and the design efficiency and accuracy are improved.

The invention discloses a bridge health monitoring system which comprises a sensing layer, a transmission layer, a processing layer and an application layer which are in communication connection in sequence. The sensing layer synchronously collects structural mechanics, environmental influence and traffic load data through multi-source heterogeneous sensing nodes, and the sensing nodes adopt a solar energy and vibration energy double-source energy supply and low-power-consumption mechanism; the transmission layer adopts a'wireless private network + edge gateway 'mixed mode, and has data caching and breakpoint resuming functions; the processing layer analyzes data through a deep learning fusion algorithm based on an attention mechanism, and realizes dynamic early warning threshold adaptive adjustment in combination with a Bayesian reasoning model; and the application layer provides a visual interface, graded early warning and targeted maintenance decision suggestions. The system achieves the precise monitoring of the full life cycle of the bridge, improves the evaluation accuracy and system stability, reduces the operation and maintenance cost, provides scientific support for the safe operation and maintenance of the bridge, is suitable for the health monitoring scenes of various bridge types, and greatly improves the accuracy of the evaluation of the health state of the bridge.

The invention discloses a structure health monitoring method based on a multi-parameter integrated sensor, relates to the technical field of bridge structure health monitoring, and solves the problems that in the prior art, bridge structure health detection is not comprehensive, and bridge structure response is separated from the actual use state. The method comprises the steps that a comparison bridge similar to a target bridge is matched according to bridge type data, bridge index data of the comparison bridge are analyzed, and a priority monitoring sequence of the target bridge is obtained through analysis; obtaining the maximum allowable load of the target bridge, and detecting the structural health condition of the target bridge according to the first priority monitoring target; analyzing the use condition of the target bridge according to the real-time monitoring data and the second priority monitoring target; the damage condition of the corresponding bridge floor of the target bridge is analyzed according to the bridge index data, whether the target bridge has the passing condition or not is judged, mutual hooking of the bridge structure and the use state is achieved, and then comprehensive detection of the bridge structure is achieved.

The utility model discloses a double amplification energy consumption mechanism used between railway pier beams and a railway, comprising a rotation amplification device, one end of which is arranged at the bottom of a main beam and the other end of which is arranged on a pier; one end of the bridge-type amplifying device is connected with the rotary amplifying device, the other end of the bridge-type amplifying device is connected with a bridge pier lug plate, and the end of the bridge pier lug plate is arranged on the bridge pier; the self-resetting energy consumption damping device is arranged in the bridge type amplifying device; the self-resetting energy dissipation damping device comprises a self-resetting assembly and an energy dissipation assembly, and the self-resetting assembly and the energy dissipation assembly are of an integrated structure. According to the mechanism, through mutual cooperation of the rotation amplifying device, the bridge type amplifying device and the self-resetting energy dissipation damping device, the energy dissipation capacity of a bridge structure is improved, the relative displacement between a pier and a pier beam is reduced, structural resetting after an earthquake and energy consumption in the earthquake are achieved through self-resetting energy dissipation, damage to components of a bridge main body structure is avoided, and the service life of the bridge is prolonged. Damage control and post-earthquake function restorability of the bridge structure are achieved.

The invention discloses a bridge vortex-induced vibration sensitive pneumatic structure detection method and system based on three-dimensional laser scanning, and belongs to the technical field of bridge engineering and structural health monitoring. Three-dimensional point cloud data of a bridge structure are obtained through three-dimensional laser scanning, and geometric features are extracted after preprocessing; a pre-trained machine learning model is used for identifying the type of the component, shape comparison with a standard bridge type database is carried out, and whether the part has sensitive aerodynamic characteristics easily causing vortex vibration or not is comprehensively judged; for the sensitive characteristics, vortex-induced vibration risk parameters are calculated based on geometric parameters and compared with the inherent dynamic characteristics of the bridge to determine the risk level; for non-sensitive features, the evaluation is terminated. The method is mainly used for rapid evaluation of vortex-induced vibration risks in bridge design, construction and operation stages, provides technical support for bridge safety monitoring and maintenance, effectively prevents vortex-induced vibration accidents, and improves bridge durability and operation safety.

The invention discloses a bridge type hoisting device for hoisting large equipment, and relates to the field of hoisting devices.The bridge type hoisting device comprises two movable sliding rails, a mounting sliding rail is slidably mounted on the two movable sliding rails, a hoisting trolley is mounted on the mounting sliding rail, and a hoisting motor, a steel cable winding drum and a speed reducer are mounted on the hoisting trolley; and a motor shaft is mounted on the hoisting motor. It needs to be explained that in the embodiment of the invention, when the hoisting trolley hoists large equipment, the dustproof box and the two bottom side sealing plates are synchronously opened for heat dissipation, and when hoisting is completed, the dustproof box and the two bottom side sealing plates are synchronously closed, so that the problem that the equipment on the hoisting trolley is corroded due to dust accumulation or long-term exposure is avoided; the safety of each device on the hoisting trolley is ensured; in addition, the hoisting steel cable can be automatically lubricated during use, and when the hoisting trolley stops using, the lubricating head is sealed through the lubricating sealing plate, so that the purpose of automatically opening and closing the lubricating head is achieved, and waste of lubricating oil is avoided.

The application discloses a bridge substructure modeling scheme generation method and device, equipment and medium, relates to the field of bridge engineering technology, and comprises the following steps: obtaining bridge superstructure design input parameters, constructing substructure design task information, generating design parameters by using a large language model reasoning, and then automatically generating a modeling script and performing structure response calculation. According to the calculation result, different modeling strategies are judged and executed, and finally a target modeling scheme meeting the requirements is intelligently generated, the design parameter generation and automatic modeling of the bridge substructure in a non-standard bridge type scene are realized, and the design efficiency and accuracy are improved.

The utility model belongs to the technical field of the shell fragment, and disclose a kind of combination bridge type shell fragment, including crossbeam, the lower surface of crossbeam is fixedly connected with first shell fragment, the lower surface of crossbeam is fixedly connected with second shell fragment, the lower surface of crossbeam is fixedly connected with insulating film, double-faced adhesive is provided on insulating film, first shell fragment, second shell fragment are provided with multiple shell fragment pressing area.Installation by the way of assembly, assembly can be disassembled, it is convenient to detect, repair or replace damaged part, without replacing entire shell fragment, reduce maintenance cost, modular design can realize the standardization and reuse of parts in batch production, reduce mould and production time, to reduce production cost, it is convenient to be integrated into integral system quickly, shorten assembly time, with high reliability, good elastic response and excellent electrical safety performance, ensure that shell fragment still can keep good conduction state under multiple plug or working environment change, guarantee the smoothness of pressing and disconnecting action.

The application discloses a bridge section catenary support post position automatic arrangement method and device, equipment and a storage medium, and relates to the technical field of electrified railway catenary, and comprises the following steps: configuring standard span, maximum span, minimum span and maximum allowable value of adjacent span difference as design parameters in an initial catenary plane layout; automatically obtaining bridge and bridge pier table attributes based on a bridge table and a bridge pier table; performing support offset arrangement calculation based on the design parameters and the bridge and bridge pier table attributes to obtain selected support positions; and automatically arranging catenary support posts based on the selected support positions, so as to meet the requirements of bridge type description, catenary support post position and bridge pier table distance setting, and catenary support post automatic arrangement of a bridge section.

The utility model discloses a convenient overhauling's take material car wheel set relates to bridge type mix uniformity take material machine technical field, including fixed establishment, still including walking mechanism, the fixed establishment includes fixed frame, the fixed frame bottom is opened with fixed groove, the both ends outside bottom of fixed frame is equipped with the clamping plate, be equipped with connecting bolt between the clamping plate and fixed frame, the walking mechanism includes driven shaft, the driven shaft is located in fixed groove inboard, the both ends outside of driven shaft all rotatory sleeve and have bearing, two the bearing outside sleeve and have the car wheel, the both ends outside of car wheel all are equipped with the through cover. The utility model discloses a fastening bolt is through the through cover and is connected with the car wheel inner wall thread, can with the bearing frame oil seal fixed to the position of car wheel and driven shaft contact, through fixed groove and clamping plate can fix driven shaft, so that the car wheel can be in the inboard of fixed frame, so that the staff can conveniently overhaul and dismount car wheel.

The application provides a structure multi-form swivel construction error elimination method, belongs to the field of bridge construction error control, and is used for solving the problems that the structure multi-form swivel construction error elimination method in the related art has single-link optimization, poor adaptability, weak cooperation and cannot meet the accurate error control of beam bridges, arch bridges and cable-stayed bridges in horizontal swivel, vertical swivel and combined swivel. The method first identifies the bridge type and the swivel form, constructs a full-link framework containing multiple units and cross-layer cooperation, generates an adaptive physical field module and anti-noise processes data, dynamically optimizes pre-correction instructions after multi-agent stage prediction, and forms a closed loop through sensitivity-driven iterative optimization. The method can realize accurate error control of multi-form swivel, and improve adaptability and cooperation.

The embodiment of the application provides a kind of based on BIM bridge model intelligent construction method and system, belong to based on BIM bridge model intelligent construction field;The method includes collecting bridge model construction related data and pre-processing, according to the bridge model construction related data after pre-processing, component library is established;The geometric linkage rule and topological connection logic of component in the component library are defined, and the initial BIM bridge model is generated through the generation of adversarial network;Lightweight finite element calculation is carried out on the initial BIM bridge model, and the optimized BIM bridge model is obtained;After the specification conflict detection and conflict parameter adjustment of the optimized BIM bridge model, the final bridge model is obtained.The application constructs parameter relation matrix and dynamic linkage mechanism, introduces the generation of complex bridge type in adversarial network, and introduces graph convolution network in adversarial network, to ensure that bridge topology is reasonable and parameters are dynamically linked.

The utility model relates to a cantilever crane with an adjustable stand column height, which relates to the field of crane equipment and comprises a telescopic stand column mechanism, a rotary arm, a rotary driving device arranged on the rotary arm and an electric hoist, the telescopic stand column mechanism comprises an inner stand column, an outer stand column, a lifting driving assembly and a guiding assembly, a mounting sliding groove is formed in the outer stand column, one end of the inner stand column is inserted into the mounting sliding groove, the other end of the inner stand column is connected with the rotating arm, and the lifting driving assembly is used for driving the inner stand column to ascend and descend in the mounting sliding groove; the guide assembly is used for guiding lifting of the inner stand column. When the cantilever crane works, the inner stand column is lifted, so that the cantilever crane can meet the lifting height of lifted objects, and when the bridge type double-beam crane needs to be used, the inner stand column is lowered, so that the safety in the lifting process is improved, and collision accidents are reduced.

A milling device for inner and outer cutting edges of a bolt clipper belongs to the technical field of bolt clipper production, and comprises a base and a workbench, the workbench is arranged on the base, an inner cavity space capable of accommodating an object is arranged in the workbench, two groups of clamping units are oppositely arranged in an inner cavity of the workbench, and two groups of bridge-shaped clamping plates are connected to the two groups of clamping units in parallel; the upper end of the bridge-shaped clamping plate is movably arranged on the table top of the workbench in a penetrating mode, a plurality of sets of chip removal holes are formed in the table top of the workbench and are close to the bridge-shaped clamping plate, a collecting hopper is arranged in an inner cavity of the workbench, and the collecting hopper is arranged between the two sets of clamping units and below the chip removal holes. And a recycling groove is formed in the lower wall of the inner cavity of the workbench, a collecting box is detachably arranged in the recycling groove, and the collecting box is arranged below the collecting hopper, so that the bolt clippers can be stably clamped, and meanwhile, waste chips generated in the milling process can be conveniently collected and cleaned.

The invention discloses a multi-dimensional compensation collaborative marine embarkation trestle hydraulic driving system, and belongs to the technical field of ocean engineering. In order to solve the problems that a traditional trestle is low in adjusting precision and poor in collaboration, the system achieves multi-dimensional compensation collaboration through a height adjusting mechanism, a power mechanism and a rotary adjusting assembly. The height adjusting mechanism drives a moving plate to move longitudinally through four electric push rods I to adjust the height of the bridge type support. The power mechanism extrudes hydraulic oil through the hydraulic push plate, and pushes the bridge type support to move transversely through the oil conveying flexible pipe I and the hydraulic cylinder I; the rotary adjusting assembly stretches out and draws back through differentiation of a hydraulic flow dividing box and a hydraulic cylinder II. According to the system, the change of an offshore environment is detected in real time through a sensor and monitoring equipment which are mounted on a trestle, a servo proportional valve with high precision and a hydraulic sensing system are adopted, a hydraulic system forms closed-loop control, the relative movement between a ship body and a platform is eliminated through six-degree-of-freedom real-time compensation, and the accidents of'kowtows' or'extrusion 'are avoided.

The utility model discloses an auxiliary device for discharging, and relates to the technical field of electronic device processing devices. The at least two fixing blocks are respectively mounted at the head end and the tail end of the bottom plate; the guide columns are arranged in parallel at intervals, and the two ends of each guide column are connected with the fixing blocks respectively; the auxiliary blocks are mounted at the head end and the tail end of the bottom plate correspondingly, and the auxiliary blocks are located on the two sides of the fixing block; the adjusting assembly is movably installed on the guide column, the adjusting assembly is located between the fixing blocks, and a plurality of lead grooves are formed in the adjusting assembly; and one end of the pulling assembly penetrates through one of the fixing blocks and then is connected with the adjusting assembly, and the pulling assembly drives the adjusting assembly to do telescopic motion when moving. According to the utility model, the technical problem that the efficiency is low when the existing bridge type electronic component is subjected to plastic package transfer is solved.

The utility model discloses a bridge type steel expansion joint cleaning device relates to bridge maintenance technical field, including the grip lever, and the adjustable length adjusting lever is arranged in the grip lever, and the tail end fixed mounting of grip lever has the anti -drop handle, is provided with length locking mechanism on the grip lever and length adjusting lever, and the bottom of length adjusting lever is provided with the cleaning plate angle adjusting mechanism, is provided with the cleaning plate on cleaning plate angle adjusting mechanism, and the adjustable shovel knife is arranged on the cleaning plate, and is provided with shovel knife fixing mechanism on the cleaning plate and shovel knife, and is provided with cleaning illumination mechanism on length adjusting lever, in the utility model, through the setting of cleaning plate, shovel knife, cleaning plate angle adjusting mechanism, shovel knife fixing mechanism, cleaning illumination mechanism, length adjusting lever, length locking mechanism etc. structure, can shovel and dig out stubborn material, and the cleaning effect of expansion joint is better, and main spotlight and side photo lamp can light the space in expansion joint, and the expansion joint is observed conveniently, and the use of device is convenient.

1. The name of the design product: bridge type chain. 2. The use of the design product: the design product plays a role in traction and protection for the built-in cable, oil pipe, gas pipe, water pipe, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The utility model relates to the field of shoe manufacturing, in particular to a bridge type supporting structure and a shoe sole with the supporting structure, which comprises a half sole part used for supporting the half sole of a human body, an arch part used for supporting the arch of the human body and a heel part used for supporting the heel of the human body, the arch part is connected with the heel part through a second connecting strip; the half sole part comprises two first potential energy pieces which are connected with each other, and a first containing cavity is formed in each first potential energy piece; the arch part comprises two second potential energy pieces which are connected with each other, and a second accommodating cavity is formed in each second potential energy piece; the heel part is provided with a third accommodating cavity; the shoe sole with the supporting structure can have good supporting performance and comfort.

The utility model discloses a bridge type pin header connector, which relates to the technical field of connectors, and comprises a base, a plurality of first bridge type pin headers are fixedly connected to the top end inside the base, a plurality of second bridge type pin headers are fixedly connected to the top end inside the base at the same time, and the first bridge type pin headers and the second bridge type pin headers are located at the top end inside the base. The first bridge-type pin header and the second bridge-type pin header are fixedly connected to one side of the outer wall of the base, the first bridge-type pin header and the second bridge-type pin header are distributed in a staggered mode, a plurality of first structural parts and a plurality of second structural parts are fixedly connected to one side of the outer wall of the base at the same time, and the first structural parts and the second structural parts are arranged in a staggered mode. The overall bending resistance of the device and the bending strength of the second bridge-type pin header are further improved, and the situation that the first bridge-type pin header and the second bridge-type pin header are deformed and even fractured due to insufficient strength at the bending position after multiple times of plugging is avoided.

The application relates to the technical field of logistics storage, and discloses a bridge type material box stacking machine which comprises a first walking mechanism, a second walking mechanism, a rotating mechanism, a stand column, a lifting mechanism, a cargo carrying mechanism and a brake mechanism. The brake mechanism comprises a first mounting seat, a telescopic cylinder and a brake assembly, the first mounting seat is fixedly connected to the stand column, a first containing cavity is arranged in the first mounting seat, the brake assembly is movably arranged in the first containing cavity, the telescopic cylinder is fixedly connected in the first containing cavity, the telescopic cylinder is provided with a push rod, the push rod is connected to the brake assembly, and the telescopic cylinder drives the brake assembly to move in a third direction. The first direction, the second direction and the third direction are perpendicular to each other. Compared with the prior art, the bridge type material box stacking machine can reduce the probability of gear fracture or plastic deformation and improve the use stability of the stacking machine.

The invention discloses a large-stroke-high-frequency-response cascade cross-scale cutter servo device and a control method. The large-stroke-high-frequency-response cascade cross-scale cutter servo device comprises a cutter mounting platform, a flexible guide mechanism, a capacitive displacement sensor, a piezoelectric actuator, an upper cover plate, a lower cover plate, a measuring baffle, a left side plate, an amplification output block, a pre-tightening wedge block, a base body and the like. The flexible guide mechanism is composed of flexible hinges, installed in the base body and symmetrically distributed, the two piezoelectric actuators are embedded into the flexible guide mechanism and arranged at the front end and the middle of the flexible guide mechanism respectively, and the large piezoelectric actuator adopts a lever displacement amplification mechanism for transmission of a thick platform. A bridge type displacement amplification mechanism is adopted for transmission of the small piezoelectric actuator to be used for a fine platform, a cutter installing platform is installed at the position of a cutter holder at the front end of the flexible guide mechanism, an upper cover plate and a lower cover plate are used for installing capacitive displacement sensors and fixing the flexible guide mechanism respectively, and the capacitive displacement sensors are arranged in the middle of a base body of the flexible guide mechanism and on the rear side of the base body respectively.

The utility model belongs to the technical field of liquid cooling plates, and particularly relates to an arch bridge type reinforced wide-flow-channel fin liquid cooling plate, which comprises a liquid cooling plate, a lower substrate is welded at the top of the liquid cooling plate, an upper substrate is welded at the bottom of the liquid cooling plate, and a flow channel cavity is reserved in a whole formed by the liquid cooling plate, the lower substrate and the upper substrate. The transverse beams and the vertical beams which are arranged in a staggered mode are arranged to support the lower base plate and the upper base plate, so that the interior of the runner cavity is reinforced, the overall structural strength is improved, the battery bulging phenomenon is reduced, the arc-shaped grooves are formed, cooling liquid can normally circulate when flowing through the transverse beams through the arc-shaped grooves, and the cooling effect is improved. According to the liquid cooling device, the cooling liquid can be guided to flow, the cooling liquid can be buffered and kept stable by forming the first transition round corner, air bubbles are prevented from being generated when the cooling liquid flows out by forming the second transition round corner, noise generated during liquid cooling is further reduced, and material corrosion is reduced.

The invention relates to a viaduct type non-ODD data construction method and device, equipment and a medium. According to the invention, at least one piece of road vertical crossing relation data is obtained from map data, and the at least one piece of road vertical crossing relation data is associated with road network data to obtain at least one road pair. And filtering out the target road pair in the at least one road pair to obtain at least one elevated road pair, so that the upper road section data included in the at least one elevated road pair is the road section data of the viaduct type. The road section data which is not marked as the viaduct road section but actually the viaduct road section can be determined through the map data, and the defect that the viaduct road section is excavated only according to the existing road section type in the road network data is overcome. Furthermore, accurate and complete non-ODD data of the viaduct type can be constructed according to the above road section data included in the at least one viaduct pair and a viaduct road section data set obtained from the road network data.

The utility model relates to the technical field of discharging devices of bridge type grab ship unloaders, and discloses a discharging device of a bridge type grab ship unloader, which comprises a top frame, a hydraulic lifter, connecting rods and a grab bucket, the hydraulic lifter is assembled at the bottom of the top frame and connected with the grab bucket, the connecting rods are assembled at four corners of the bottom of the top frame, and the grab bucket is connected with the connecting rods. The grab bucket is assembled outside the connecting rod, a transverse shaft is assembled inside the grab bucket, the transverse shaft is rotationally connected with the connecting rod, knocking mechanisms are assembled on the two sides of the outer portion of the transverse shaft, each knocking mechanism comprises a gear and a push plate, the outer portion of each gear is connected with a gear ring in a meshed mode, and the gear rings are connected with the connecting rod. According to the discharging device of the bridge type grab ship unloader, the situation that materials are clamped on the inner wall of the grab and cannot be normally discharged, so that the discharging efficiency of the materials is reduced is avoided, meanwhile, the knocking mechanism does not need to be driven by additional power, the overall linkage of the device is improved, and energy loss is reduced.

The application provides an intensive single-column pier overload overturning risk assessment method based on a convolutional neural network, belongs to the technical field of bridge engineering safety assessment, integrates vehicle load parameters, temperature effects, concrete creep and vehicle-bridge interactive dynamic amplification factors in a multi-dimensional tensor input, uses stage-by-stage training and gradient descent optimization of the convolutional neural network, realizes second-level reaction force prediction and dynamic amplification adjustment value output, expands the reaction force data through a synthetic overturning axis method, controls the error within a reasonable range, after integration with an existing bridge health monitoring system, can collect sensor data in real time, outputs a four-level risk grade, which is safety, criticality, danger and immediate intervention respectively, thereby reducing bridge maintenance costs, avoiding resource waste, improving structural stability in a high traffic volume environment, and being suitable for various bridge types such as straight bridges and curved bridges, realizing intensive assessment of single-column pier bridge overload overturning risk, and greatly improving the real-time performance and accuracy of the assessment.

The utility model discloses a soft rock tunnel yielding supporting structure which comprises a yielding steel sleeve embedded in a sprayed concrete layer, and the yielding steel sleeve is provided with an arc-shaped inner steel plate and an arc-shaped outer steel plate which are coaxially arranged at intervals. A plurality of bridge type yielding pieces are uniformly arranged between the inner steel plate and the outer steel plate; the yielding supporting structure further comprises at least two temporary supporting rods which are used for temporarily installing and supporting the wall face rock mass after excavation is completed and dismantling the supporting wall face rock mass after the tunnel wall face rock mass is stable. One end of the temporary supporting rod is connected to the sprayed concrete layer, and the other end is connected to the excavated ground. The structure solves the problem that an existing yielding supporting structure using I-shaped steel as a soft rock stratum is prone to being damaged at the arch angle position.

The application discloses a kind of double-bridge type hoisting equipment anti-interference trajectory tracking and anti-swing control method, construct the dynamics model of variable rope length double-bridge type hoisting equipment under the condition of unknown external disturbance, the dynamics model is expressed as the dynamics model of cascade system form by separating the dynamics model of energy drive state and cannot drive state, the actual coordinates of load centroid are subtracted from the desired trajectory vector of load centroid to obtain trajectory error vector, the load position error integral is obtained by trajectory error vector, then LSNF function is constructed, position control parameter matrix and speed control parameter matrix are defined, then pseudo-controller is constructed, speed error vector is constructed, finally actual controller is constructed according to speed control parameter matrix, speed error vector, trajectory error vector, pseudo-controller and the dynamics model of cascade system form.Using the technical scheme, the load positioning is more accurate, and the anti-interference ability of cable is stronger.

This utility model relates to the field of bridge engineering technology and discloses a bridge seismic reinforcement anti-fall beam bracket. The bracket consists of a steel bracket, anchor bolts, and buffer elastic pads. Through a simple structural design, it effectively extends the overlap length from the bridge beam end to the pier, abutment cap, or cap beam edge, thereby preventing beam collapse under extreme seismic loads. The steel bracket is welded from a connecting plate and a support plate arranged at right angles, and its overall rigidity is enhanced by stiffening plates. The connecting plate is fixed to the pier cap beam by anchor bolts, making installation convenient and stable. Buffer elastic pads are installed on the upper surface of the support plate, which can absorb and buffer the impact energy of the beam on the bracket under seismic action, further improving seismic performance. This utility model is applicable to existing bridges of different bridge types, spans, and bearing types, with strong compatibility, minimal modification work, and significantly improves the seismic resistance of existing bridges, providing a reliable guarantee for the safe operation of bridges throughout their entire life cycle.