15 results about "Cross bridge" patented technology

The invention discloses a vehicle load identification method based on a multi-modal large model, and the method comprises the following steps: selecting a reference bridge in a region for testing, and obtaining a reference bridge case library; analyzing the new bridge through a multi-modal large model, and matching a plurality of reference bridges most similar to the core characteristics of the new bridge from a reference bridge case library; the multi-modal large model migrates a load response model and model parameters of the reference bridge case to a new bridge through a case reasoning mechanism; and according to the structural difference between the new bridge and the matched reference bridge and the actual working condition of the new bridge, the multi-modal large model carries out architecture reconstruction on the migrated load response model. The method has the beneficial effects that the new bridge can directly reuse the model parameters and the load response rule of the reference bridge through the constructed reference bridge case library in combination with the retrieval enhancement generation and bridge-crossing knowledge migration mechanism of the multi-modal large model, so that the time cost and the economic cost of bridge-crossing deployment can be greatly reduced.

The utility model relates to the technical field of damping devices, and discloses an improved damping front fork which comprises an upper fork bridge, two front fork sleeves and two spring seats, a vertical pipe is fixedly connected to the middle of the upper surface of the upper fork bridge, and front fork branch pipes are arranged in the front fork sleeves. The upper ends of the front fork branch pipes are fixedly connected with the middles of the two sides of the lower surface of the upper fork bridge, sealing rings are fixedly connected with the upper surfaces of the front fork sleeves, and guide sleeves are arranged in the front fork sleeves. The front fork branch pipe is connected with the upper bridge and the lower fixing piece and is in sliding fit with the front fork sleeve, a stable telescopic structure is constructed, stress is effectively transmitted and dispersed, structural stability under complex road conditions is guaranteed, the damping spring is connected with the spring seat and the fixing piece, vibration energy is efficiently absorbed and buffered, vibration impact is relieved through stretching and retracting of the front fork branch pipe, and the service life of the front fork branch pipe is prolonged. And the guide sleeve and the gasket assist the front fork branch pipe to slide stably, so that the performance of the damping system is improved.

The application discloses a vehicle load identification method based on a multi-modal large model, which comprises the following steps: selecting a reference bridge in a region for testing to obtain a reference bridge case library; analyzing a new bridge through a multi-modal large model to match a plurality of reference bridges with the closest core characteristics of the new bridge from the reference bridge case library; the multi-modal large model migrates the load response model and model parameters of the reference bridge case to the new bridge through a case reasoning mechanism; and the multi-modal large model reconstructs the migrated load response model according to the structural differences between the new bridge and the matched reference bridge and the actual working conditions of the new bridge. The application has the beneficial effect that, through the constructed reference bridge case library, the generation of the multi-modal large model retrieval enhancement and the cross-bridge knowledge migration mechanism, the new bridge can directly reuse the model parameters and load response law of the reference bridge, thereby greatly reducing the time cost and economic cost of cross-bridge deployment.

The utility model relates to the technical field of continuous beam monitoring, and discloses an automatic monitoring device for continuous beam expansion of a river-crossing bridge, which comprises a transverse supporting plate, vertical bars are detachably mounted at four corner ends of the transverse supporting plate, and a plurality of displacement type fixing structures are slidably mounted at the top of the transverse supporting plate. And a fiber grating sensor is detachably mounted on the displacement type fixing structure. According to the automatic monitoring device for the expansion of the continuous beam of the river-crossing bridge, the fiber grating sensors are detachably mounted on the displacement type fixing structure, the displacement type fixing structure is movably fixed on the transverse supporting plate, when each fiber grating sensor is mounted, drilling pre-embedded mounting is not needed, the drilling process is optimized, the working efficiency is improved, and the cost is reduced. Meanwhile, the distance between every two adjacent fiber grating sensors can be rapidly and accurately adjusted, repeated drilling operation is not needed when the sensors are repaired or replaced subsequently, the sensors can be directly disassembled, replaced and repaired, and the maintenance cost is reduced.

The utility model discloses a mass block suitable for the tuned mass damper of cross-sea bridge, it includes the mass block body of inside hollow, the inside hollow inside filling has counterweight of mass block body, and mass block body includes the front end body and rear end body of being connected, and the front end body is hemispherical shell, and the rear end body is streamline shell, the utility model discloses under the sea current impact, and the front end body is located upstream and first receives the impact, and the rear end body is located downstream and rear end body is streamline and can destroy tail flow field, dissipate impact energy, reduce the water flow resistance that mass block whole received, effectively improve mass block stress performance.

The utility model discloses a kind of river-crossing bridge deck water taking devices, including the support mechanism for crossing bridge deck left and right width, water taking mechanism and the cross-width passageway assembly of being laid on support mechanism, water taking mechanism includes water pump, main pipeline, branch pipeline, tee joint and electric cabinet, electric cabinet is electrically connected with water pump, the water outlet of water pump is connected with the first end of main pipeline, the second end of main pipeline is connected with two branch pipelines by tee joint, to realize water supply to bridge deck left and right width simultaneously;The river-crossing bridge deck water taking device of the utility model, when encountering river-crossing bridge deck water taking device or water receiving vehicle failure, when needing overhauling, can directly cross width through cross-width passageway assembly, to install electric cabinet side and disconnect total power supply, avoid from one-way long distance detour, other special circumstances need to cross width, all can from here, safety condition meets requirement, save a lot of detour time, it is simple in structure, convenient to operate, can realize bridge deck left and right width water taking simultaneously.

The utility model relates to a rectifier bridge module with a current monitoring function, which comprises pins, a carrier plate, a span bridge, a current monitoring span bridge, a Hall current sensor, an insulating cover and six rectifier diodes, and is characterized in that the carrier plate, the span bridge, the current monitoring span bridge, the Hall current sensor and the rectifier diodes are all positioned in the insulating cover; the pins comprise a direct-current anode pin, a direct-current cathode pin and three alternating-current pins; the carrier plate comprises a left current-conducting plate, a right current-conducting plate, a substrate, a current monitoring current-conducting plate and three middle current-conducting plates; the left current-conducting plate, the three middle current-conducting plates and the right current-conducting plate are sequentially arranged from left to right, the three middle current-conducting plates are sequentially arranged from top to bottom, and the current monitoring current-conducting plate is arranged below the right current-conducting plate. The beneficial effects of the utility model are that current monitoring can be realized, the Hall current sensor is arranged in the insulation cover, the anti-interference capability and the consistency are strong, the overall size is small, the installation steps are few, and the cost is reduced.

A main bridge of the cable-stayed bridge comprises a low tower, a high tower, a main beam and a stay cable, the low tower and the high tower are arranged in the longitudinal direction of the bridge, the main bridge is divided into a first side span, a middle span and a second side span which are sequentially arranged, the main beam is supported on the low tower and the high tower, and the stay cable is supported on the middle span. The main beam is arranged between the low tower and the high tower and is divided into a main beam weight area located in a side span and a main beam standard section located in a main span by the low tower and the high tower, a vertical support is arranged between the low tower and the main beam, and the high tower and the main beam are fixedly connected through tower beam piers, so that the main bridge forms a'consolidation + semi-floating 'structural system; the low tower and the high tower adopt single-column type bridge towers in the transverse bridge direction, the vertical surface of the appearance is in a swan neck shape, a lower tower column adopts a variable cross-section straight line form, an upper tower column adopts a uniform cross-section section, and the uniform cross-section section of the upper tower column in the bridge direction adopts a circular curve shape in the vertical direction. According to the scheme, the structure is attractive, the structure is reasonable, and design and construction are convenient.

This utility model belongs to the field of safety passage technology and discloses a pedestrian safety passage for bridge crossings, including a support frame and a safety passage component for covering the support frame. The safety passage component has through slots on the left and right sides and a square slot on the rear side. A light-shielding component is embedded at the top of the safety passage component. A folding ladder rotates inside the safety passage component. The first and second steps have two states: when the first and second steps are in a vertical state, the folding ladder is in a folded state; when the first and second steps are in a parallel state, the folding ladder is parallel to the safety passage component. Through the above solution, the problems of adding two sets of fixed ladders at the entrance and exit, requiring simultaneous movement on both sides when movement is needed, resulting in inconvenience, and the need for passages to withstand high humidity and strong corrosion environments during the construction of bridges across rivers, where passages built with ordinary steel are prone to rust and reduced structural stability, are solved.

The application belongs to the technical field of bridge erection, and discloses a cross bridge rotating construction method and a bridge. The cross bridge rotating construction method comprises the following steps: installing a rotating seat body; installing a first cross beam; the first cross beam is installed on a first pier and the rotating seat body; erecting a cable tower; connecting a first cable; rotating the rotating seat body by 180 degrees to install a second cross beam, connecting a second cable; installing a first counterweight on the first cross beam between the second pier and a third pier, so that the whole cross beam is balanced with the first counterweight; rotating the rotating seat body by 180 degrees, so that the whole cross beam is synchronously rotated by 180 degrees together with the cable tower, the first counterweight, the first cable and the second cable, and the whole cross beam is supported by the first pier, the rotating seat body, the third pier and a plurality of piers on the side of the third piers away from the second pier; S10, removing the cable tower, the first cable, the second cable and the first counterweight, replacing the rotating seat body with a first support, and fixing the whole cross beam on each pier.

This application relates to the field of electrode battery manufacturing technology, specifically disclosing a composite stacking device based on batch transfer, comprising: a stacking table, several conveyor lines, a cross bridge, and a transfer component; the cross bridge spans the stacking table and the several conveyor lines; the transfer component is slidably disposed on the cross bridge; the transfer component is used to transfer materials in batches from the conveyor lines to the stacking table for stacking. In this solution, the transfer component can transfer materials in batches from the conveyor lines to the stacking table, thereby achieving rapid material loading for the stacking table and improving stacking efficiency, solving the problem of low efficiency in existing one-by-one transfer methods.

The application discloses a kind of cross bridge displacement monitoring data reconstruction method, device and equipment, belong to bridge structure health monitoring and data processing technical field.The method comprises: obtaining the monitoring data of first bridge;Determine the time-varying delay that monitoring data is mapped to the time axis of second bridge based on the space-time transmission characteristics of homologous excitation;First bridge modal characteristics are obtained by projecting monitoring data to modal characteristic space;The graph neural network model based on structural dynamics constraint, macro energy constraint and historical deformation mode constraint is updated to learn the transverse coupling relationship between second bridge space measuring points;Predicted modal characteristics are output based on modal characteristics and time-varying delay using the model and reconstructing second bridge monitoring data.The application realizes the fusion of physical mechanism and data driving, effectively solves the problem of single-bridge data missing, and improves the physical consistency and confidence of reconstructed data.

This invention relates to the field of bridge demolition technology, and more particularly to a method for demolishing continuous bridge box girders while maintaining navigation. The method employs pre-construction of the new bridge to achieve zero road traffic interruption, and establishes a spatially coordinated force-bearing system by setting up a transverse connecting truss between the two old bridges. A foundation coupling settlement prediction model is established to monitor and dynamically match the demolition rate in real time to maintain dynamic equilibrium of the foundation forces. A four-floating crane spatial coupling synchronous control system is used for the navigation span, incorporating wave field interference effects to correct the lifting speed, achieving synchronous symmetrical lifting of the two bridge areas. The purpose of this invention is to solve the safety and efficiency problems encountered during the synchronous demolition and construction of parallel double continuous box girder bridges, including road and waterway traffic interruption, uneven settlement of the shared foundation of the two bridges, structural stress imbalance during demolition, and wave field interference during multi-floating crane coordinated lifting.

This application provides a method, system, medium, and electronic device for flood prevention early warning of cross-river bridges. The method includes: collecting multi-source basic information about the cross-river bridge; collecting multi-dimensional real-time data on the upstream and downstream pier areas of the bridge; constructing a bridge-river channel flooding model based on the multi-source basic information; performing simulation analysis based on the bridge-river channel flooding model to generate an intelligent early warning mechanism; and making early warning judgments based on the multi-dimensional real-time data using the intelligent early warning mechanism, and outputting early warning response results. The solution provided in this application can improve the early warning capability for flood prevention of cross-river bridges.

The invention provides a dissolved geology river-crossing bridge foundation construction method, which relates to the technical field of bridge foundation construction, and comprises the steps of pile foundation hole forming and cleaning, anchor rod hole site measurement lofting and drilling, hollow anchor rod installation and grouting preparation, pressure grouting, reinforcement cage lowering, pile body concrete pouring and the like. The foundation bearing capacity can be remarkably improved, meanwhile, pile foundation deformation is restrained, and horizontal resistance is enhanced.