1577 results about "Structural element" patented technology

The invention relates to the technical field of engineering management and control, in particular to an electric power engineering construction management and control method and system based on digital twinning. The method comprises the following steps: acquiring heterogeneous sensing data of a construction area, and carrying out dynamic modeling on a structural member to obtain a member-level digital twin grid; performing environmental factor-material performance response coupling based on the component-level digital twin grid to obtain a material environmental response distribution diagram; component environment sensitivity dynamic injection is carried out according to the component-level digital twin grids, and a construction process dynamic map is obtained; performing multi-mode construction state field deduction based on the construction process dynamic map to obtain a construction state evolution distribution field; and performing reversible process scheduling optimization and simulation according to the construction state evolution distribution map to obtain a reversible scheduling optimization map. The efficiency of electric power engineering construction and the resource utilization rate can be improved.

The invention discloses a power monitoring regulation and control system and method used in the operation process of a ship lock miter gate, and relates to the technical field of ship locks. The method comprises the following steps: firstly, monitoring the vibration state of each structural member of the ship lock miter gate, calculating a rigidity evaluation value of the ship lock miter gate, adjusting an electric control signal of a proportioning pump according to the rigidity evaluation value, and optimizing the non-deformability of a gate body structure; secondly, the dynamic stress of the door body is monitored, the dynamic stress safety evaluation value of the ship lock miter gate is obtained, the output frequency of the motor is adjusted through the frequency converter, and structural overload can be avoided; and finally, the back pull rod prestress monitoring and adjusting module adjusts the prestress of the back pull rod in combination with the vibration state, the dynamic stress and other characteristic data, so that the stability and the structural safety of the door body are kept. Structural damage caused by excessive vibration or stress overload can be avoided, the service life of equipment is prolonged, and stable operation of a ship lock system is ensured.

The invention relates to the technical field of ruin three-dimensional construction, in particular to a ruin three-dimensional model construction method fusing SLAM point cloud and image features, which comprises the following steps: acquiring a depth image and RGB data, aligning and eliminating inconsistent data according to a timestamp, calculating a frame rate to node ratio, establishing a binding relationship between an image and a point cloud, and extracting three-dimensional coordinate points. Recognizing and classifying geometric structures, evaluating texture and edge response, adjusting resolution, analyzing static and dynamic structures, eliminating dynamic interference, calculating geometric curvature and fitting error, optimizing three-dimensional model display, and obtaining detail reduction degree scores. According to the method, through accurate synchronization of the point cloud data and the RGB image, strict verification of timestamp matching and data consistency is allowed, data errors and noise are significantly reduced, the accuracy and reliability of the model are ensured, structural elements are identified, dense areas of geometric structures are refined and analyzed, richer data level support is provided, and the method is suitable for large-scale popularization and application. And higher-quality data is provided for archaeological research.

The invention discloses a method for detecting the quality of a functional layer of a building outer wall by an unmanned aerial vehicle, and particularly relates to the technical field of building outer wall detection.The method comprises the steps that firstly, an infrared image of a building outer wall facing object is collected through the unmanned aerial vehicle, pixel points and remaining pixel points of a serious hollowing area are determined, and the abnormal degree of the remaining pixel points is calculated; clustering is carried out by adopting a defect probability-based region growing method; based on seed point screening of morphological preprocessing, structural elements of different sizes are comprehensively determined to be used through weighted summation calculation according to the jitter frequency of the unmanned aerial vehicle and the image resolution, and noise is filtered step by step. Generating a multi-scale pyramid for the original image, and detecting candidate seed points at each level; sorting and preferentially selecting the candidate seed points based on the morphological closure degree and the shape regularity of each candidate seed point; pixel points in the neighborhood of the growth seed points are merged to obtain all hollow defect connected domains; and judging the quality condition of the building outer wall functional layer according to the area of the hollowing defect connected domain.

Insulated panels having suitable surface members separated by an inner layer of insulated foam are used for the walls and as structural members for the floor and roof of a building structure. A rigid frame supports the wall, floor and roof insulated panels. The wall insulated panels are supported on the exterior of the frame by rigid brackets with the insulated panels being suitably flashed or capped.

The invention provides a design method and device of a metallurgical pipeline and a program product, path planning design of the metallurgical pipeline is carried out in a pre-constructed three-dimensional metallurgical factory scene, the three-dimensional metallurgical factory scene is constructed through an imported building structure model, and the three-dimensional metallurgical factory scene comprises arrangement information of equipment and structural members of a building. The design method comprises the following steps: S1, acquiring a starting point position, an end point position, a prohibited area, process parameters and constraint conditions of a metallurgical pipeline input by a user; and S2, according to the starting point position, the terminal point position, the forbidden area, the process parameters and the constraint conditions, performing path search in the three-dimensional metallurgical factory scene through a predetermined path planning algorithm and a pre-trained pipeline layout prediction model to obtain a metallurgical pipeline planning path. By means of the technical scheme, the design efficiency can be improved, the construction cost is reduced, and the building safety is ensured.

The invention relates to the technical field of solid deformation measurement, particularly provides an intelligent detection and deviation correction system for steel structure construction, and solves the problems that in the prior art, solid deformation measurement means are limited, deviation can be found only through static measurement or post analysis, and the measurement accuracy is poor. And real-time monitoring and dynamic correction in the construction process cannot be realized. The system comprises a virtual model module integrated with various sensors and used for collecting steel structure component data in real time; the steel deviation prediction module constructs a steel deviation prediction model and trains the steel deviation prediction model according to the analysis result of the construction physical model; inputting the construction physical model into the steel deviation prediction model, and predicting a deviation trend; a correction suggestion generation module generates a correction suggestion according to the predicted deviation trend; and triggering an automatic adjustment instruction based on the correction suggestion. Through organic combination of the virtual model, deviation prediction and correction suggestions, intelligent monitoring and deviation correction of the steel structure construction process are realized.

The invention provides a multi-order segmentation-based structural member linetype rapid identification method and system, and relates to the technical field of engineering structure intelligent detection, and the method comprises the steps: obtaining an original image of a structural member; performing coarse segmentation on the original image to generate an initial binary mask of the structural member; automatically screening out a target mask region containing a foreground prompt point through a connected domain analysis mode; calculating bounding box coordinate information of a bounding rectangle of the target mask region through a contour detection mode; extracting a corresponding target area sub-image from the original image; adopting a super-resolution reconstruction model to enhance the sub-image of the target area; performing sub-image division on the enhanced target area sub-image; fine segmentation is carried out on the sub-images, and a high-precision mask is determined; mapping the high-precision mask to an original image through coordinate mapping; and combining an edge detection algorithm to extract an outer contour line of the structural member to complete linetype identification of the structural member.

Based upon the identification of a structural member, a projective path and final attachment location for the structural member is presented to the crane operator. Further, the dimensions of each structural member are determined and compared against a construction site database. Structural members not conforming to the dimensions listed in the construction site database are identified and the crane operator alerted.

The invention provides a camper having strut system that reinforces the body of the camper without the use of structural elements such as walls or cross-bars at the rear of the camper. The strut system can be used with pop-up or wedge-type campers to provide a camper that is free of any structural elements between the sidewalls at the rear of the camper. By avoiding the use of structural elements between the sidewalls at the rear of the camper, the strut system provides a camper with a rear opening that is structurally sound and free of any obstructions making it easier to enter, exit, load, and unload the camper. The invention also provides a latching system, an awning system, and hatch securing system for use with a camper.

The invention relates to the technical field of concrete structure damage detection, in particular to a post-fire RC structure burst damage three-dimensional segmentation method, which comprises the following steps: firstly, determining the type and three-dimensional characteristics of post-fire RC structure member surface concrete burst damage, and constructing a corresponding three-dimensional point cloud data set for network training and verification; and then based on a KP-FCNN network structure, a KPConv layer is improved and optimized, so that the detection and segmentation precision is improved, the model size is reduced, the reasoning time is remarkably shortened, the optimal segmentation precision of 82.3% is achieved under the working conditions of different damage degrees, automatic damage segmentation of the burst damage of the concrete structure after the fire disaster is realized, and the automatic damage segmentation of the burst damage of the concrete structure after the fire disaster is realized. And technical support is provided for subsequent damage three-dimensional quantification and deployment to an unmanned aerial vehicle system.

Structural support apparatuses, systems, and methods are disclosed herein, where the structural support may include a rod having an upper end and a lower end, a base configured to be operatively coupled with the lower end of the rod and a foundation, and a mount assembly comprising a bracket configured to be operatively coupled with a structural member, and a mount connector operatively coupling the bracket to the upper end of the rod. The mount connector is configured to allow the rod to rotate with respect to the bracket while restricting separation of the bracket from the rod. The structural support apparatus is configured to allow for vertical adjustment of the structure without having to remove the bracket from a structural member of the structure.

The invention provides a structural engineering bearing capacity field detection method, and belongs to the technical field of structural engineering detection.The structural engineering bearing capacity field detection method comprises the steps that a multi-axial acceleration sensor and a strain gauge array are installed on the surface of a to-be-detected structural member, and an intelligent loading device is adopted to apply incremental loads; a mobile data acquisition terminal is utilized to acquire vibration response data and strain response data in real time, modal parameters are extracted based on a frequency domain analysis method to establish a load-modal parameter relation curve, the bearing capacity of a component is analyzed and calculated, a graph theory shortest path algorithm is adopted to optimize load transmission path analysis, and the load transmission path analysis is optimized. The bearing performance of the component is accurately evaluated through the structural response prediction model based on the Transform architecture, the technical integration of multi-dimensional detection data fusion, intelligent loading control, quantitative bearing capacity evaluation and accurate performance prediction is realized, and the technical problem of insufficient detection precision of the bearing capacity of the structural component is solved.

The invention discloses a method for rapidly evaluating the safety of a structure after a bridge fire, and the method comprises the steps: obtaining an air temperature, flue gas speed distribution, air pressure distribution and a flame flue gas image through simulating a fire scene; the method comprises the following steps: when simulating that a fire enters a fire quasi-steady-state stage, obtaining a fire smoke image for completely describing a dynamic change process of thermal plume and a smoke speed distribution image and an air pressure distribution image above a fire source, and forming a training sample; constructing a long and short term memory network model; training the model; shooting a flame smoke image of a fire scene, inputting the flame smoke image into the trained long-short term memory network model, and outputting a smoke speed distribution image; calculating a final fire source heat release rate according to the flame smoke image and the smoke speed distribution image; the average temperature of the components in the cable at different moments is calculated; according to the average temperature of the components in the cable at different moments, whether the structural components lose efficacy or not is judged. According to the invention, the monitoring accuracy and timeliness are improved.

The invention discloses a method, a device, equipment, a medium and a product for calculating carbon emission of a steel structural component, and the method comprises the steps: carrying out the data monitoring and collection of a prefabrication process of each steel structural component, so as to obtain energy consumption data, material consumption data and environment CO2 concentration dynamic change data; calculating the unorganized dissipation amount of the greenhouse gas according to the dynamic change data of the CO2 concentration of the environment; according to the energy consumption data, the material consumption data and the unorganized greenhouse gas dissipation amount, calculating the carbon emission of each steel structural member prefabricating process and the carbon emission of a workshop sharing project; and adding the carbon emission of the prefabrication process and the carbon emission of the workshop sharing project to obtain the carbon emission of each steel structural member in the prefabrication process. According to the method, all energy and material consumption generated due to component prefabrication requirements in the steel component prefabrication stage, carbon emission of workshop shared projects and carbon emission caused by unorganized greenhouse gas dissipation are considered, and therefore the accuracy of calculation of the carbon emission of the steel structural component can be effectively improved.

The invention belongs to the technical field of image processing, and particularly relates to a casting surface defect detection method and system based on image segmentation, and the method comprises the steps: obtaining a gray-scale image and a brightness background image of a vortex casting to be detected, and calculating the illumination deviation of each position in the image; segmenting the grey-scale map of the vortex casting to be detected by using an Otsu method to obtain a binary image; constructing a circular structural element according to the width of the optical interference region and the resolution of the imaging equipment; performing corrosion operation on the binary image based on the structural elements to generate a structural saliency image; obtaining a defect saliency value by using a product of a gray value and an illumination deviation in the structure saliency map; and calculating a segmentation threshold value based on the statistical characteristics of the defect-free sample, and identifying the position of which the defect saliency value is greater than the segmentation threshold value as a defect point. Through physical constraint and illumination feature fusion, the problem that a dark vortex structure and a real defect are difficult to distinguish is effectively solved, and the detection precision is improved.

The invention discloses a BIM-based building construction monitoring method, and the method comprises the steps: arranging a data collection device at a construction site, and obtaining multi-source data, such as structural members, construction machinery, spatial positions of operators, construction states, safety indexes and environmental parameters; automatically mapping multi-source data to a BIM three-dimensional model through an adaptive coordinate transformation and semantic recognition algorithm, matching the multi-source data with construction plan nodes, and generating a BIM construction state model reflecting a field state in real time; the system automatically compares the model with a construction plan model, identifies a state and calculates deviations such as progress, position, size, quality and safety; the method comprises the following steps: displaying deviation parts and potential safety hazards in a BIM interface in a highlight manner, superposing rectification suggestions, issuing a construction adjustment instruction confirmed by a manager to a field terminal, and storing monitoring, comparison, early warning and processing records in a database according to a time sequence to form a digital file; and real-time intelligent monitoring and visual management of construction progress, quality and safety are realized.

The invention discloses an automatic welding clamp for manufacturing a concrete structural member reinforcement cage, which comprises a base and a reinforcement cage body, the reinforcement cage body comprises an annular rib and a main rib, the upper end of the base is fixedly connected with a vertical plate, and the side wall of the vertical plate is provided with a turntable driven by a driving motor to rotate; a driving assembly is arranged on the side wall of the rotating disc, and a plurality of fixing rods are fixedly connected to the side wall of the driving assembly. The device is reasonable in structural design, the multiple fixing rods can synchronously get close to each other or get away from each other, the annular rib is supported and fixed through the interior of the annular rib, two U-shaped supporting plates can support a main rib, two limiting plates get close to each other to further clamp and fix the main rib, and the main rib is controlled to move to be stably attached to the annular rib; the main ribs can be welded to the annular ribs conveniently, then the main ribs can be welded in sequence, operation is easy and convenient, and the safety and the welding effect in the welding process can be guaranteed.

A portable, handheld system designed for anchoring and securing ladders, pump jack scaffolding, and walkways on pitched roofs or inclined surfaces. The invention includes three platform configurations, each with a variable pitch adjustment for leveling across multiple roof angles: (1) a ladder stop platform equipped with a 360-degree stop mechanism for multi-directional ladder stabilization; (2) a pump jack platform that provides a stable base for supporting pump jack systems and scaffolding; and (3) a walkway platform configured with parallel plank attachment bars and integrated guardrails for safe foot traffic. Each platform features anchor beds for secure attachment to structural elements like roof trusses and reinforced lateral rib members for uniform load distribution, enhancing structural integrity and load-bearing capacity across the system.

A leveling device which can be selectively deployed and actuated to raise, lift, or stabilize a structural member or other element with respect to a support surface. In some embodiments, the leveling device may include an extendable device frame. The device frame may be selectively extendable to various lengths. A frame extension assembly may operably engage the device frame. The frame extension assembly may be configured to facilitate selective extension or lengthening and retraction or shortening of the device frame. The device frame may be selectively lockable at the selected extended length. In application of the device, the device frame may be deployed in place between a floor or other support surface and an elevated structural member to be raised, leveled, or stabilized. The frame extension assembly may be deployed from the pre-extended position to the extended position to extend the device frame and raise, level or stabilize the structural member.

The invention discloses a simplified analysis simulation method for a nine-supporting-rod infilled wall, and the method comprises the following steps: 1, determining nodes of peripheral vertical and horizontal structural members, determining two end points and a middle node of a middle elastic-plastic supporting rod, additionally arranging two nodes at the same positions of the two end points respectively, determining local nodes of the horizontal structural member; 2, a filler wall nine-supporting-rod simplified model composed of eight filler wall rigid supporting rods and filler wall middle elastic-plastic supporting rods is constructed; 3, fiber discretization is conducted on the elastic-plastic supporting rod in the middle of the infilled wall, each fiber represents a small area on the cross section and has different positions, cross section areas and material attributes, and the coupling earthquake response inside and outside the plane of the infilled wall is analyzed. The method is mainly used for analyzing the earthquake response inside and outside the infilled wall plane under the earthquake action, the actual working state of the infilled wall can be better reflected under the condition that the accuracy is ensured, and engineering application is facilitated.

The invention relates to the technical field of structural analysis, and provides a structural model generation method and device based on an architectural drawing, equipment and a medium, which can reconstruct a line unit of a basic architectural drawing according to a line type assignment rule so as to realize visual distinguishing of component information. The drawing exchange format file processing library is called to accurately extract drawing information of the target architectural drawing and write the drawing information into the dictionary, so that hierarchical management and control of information can be realized, and component information confusion is avoided; each structure model standard layer is created according to the building drawing information file and the modeling information file, nodes are added to each structure model standard layer based on a node duplicate removal mechanism, and efficient node creation can be realized on the premise of avoiding repetition; structural component modeling is carried out on the basic framework according to the modeling information file and the pre-processing parameter file, pre-processing parameter configuration and model data engineering output processing are carried out on an initial structural model to obtain a target three-dimensional structural model, and therefore accurate modeling of the three-dimensional structural model is automatically achieved.

The invention is suitable for the technical field of steel structure wind-induced dynamic response analysis, and provides a construction method and device for a hysteresis parameter model of a steel structure component under the wind load effect, and the method comprises the steps: constructing a refined finite element model of the steel structure component; monotonic load is applied to the steel structural member, monotonic loading performance simulation of the steel structural member is carried out, and a simulated monotonic loading curve of the steel structural member under the monotonic load effect is obtained; applying a wind load to the steel structural member and simulating the hysteretic performance of the steel structural member to obtain a simulated hysteretic curve of the steel structural member under the action of the wind load; performing parameter identification on the simulated monotonic loading curve and the simulated hysteretic curve to obtain hysteretic parameters of the component, including skeleton curve parameters and cumulative plastic deformation capacity parameters; according to the skeleton curve parameters and the cumulative plastic deformation capacity parameters, a hysteresis parameter model of the steel structural member is obtained through regression analysis, and hysteresis parameters and response performance of the steel structural member under the wind load effect can be predicted more accurately.

The utility model relates to a gravity type bridge combined anti-seismic check block which comprises a cover beam and a box beam erected at the upper end of the cover beam, steel sliding blocks with arc-shaped bottoms are fixedly arranged at the bottoms of the two sides of the box beam, slope section check blocks are arranged on the two sides of the cover beam, and sliding connection slope sections of the slope section check blocks and the steel sliding blocks are in an obliquely upward cambered surface shape from inside to outside. Two upper support cushion stones are fixedly arranged on the lower end face of the box girder in a spaced mode, two lower support cushion stones are fixedly arranged on the upper end face of the cover beam, two lower auxiliary check blocks are fixedly arranged on the upper end face of the cover beam between the two lower support cushion stones in a spaced mode, and the upper ends of the two lower auxiliary check blocks are fixedly connected with upper auxiliary check blocks through high-strength anti-shearing bolts. The traditional rigid collision between the baffle block and the main beam is converted into flexible sliding of materials between the sliding block and the slope section, and the kinetic energy of an earthquake is fully converted into the action of lifting the gravity of the main beam and the friction among the materials, so that the effects of energy dissipation and shock absorption are realized, and multiple earthquake-proof defense lines can be realized; and the anti-seismic capacity and the recovery capacity of the bridge are remarkably improved on the premise of protecting structural members of the bridge.

The utility model relates to a sliding shock insulation modular building which comprises a module group forming a building main body. The building foundation is used for bearing the module group; the sliding layer is arranged between the module group and the building foundation and comprises an upper sliding interface and a lower sliding interface which are fixedly connected with the bottom of the module group and the top of the building foundation respectively, and a sliding medium arranged between the upper sliding interface and the lower sliding interface; and the sliding starting control part is connected with the module group and the building foundation and is used for controlling the sliding starting state. Compared with the prior art, the earthquake response of an upper modular building can be reduced, non-structural members in the modules can be protected, the module units are lighter in design, the connection between the adjacent modules is simpler, and the connecting structure adapts to the characteristics of various layouts and stress; the anti-seismic performance of the modular building is improved through simple sliding seismic isolation measures which are low in manufacturing cost and convenient to construct.

In various embodiments, a room-based design application automatically generates a design for a floor structure of a building. In operation, the room-based design application generates blocks representing portions of the floor structure that are delineated by walls based on a room plan included in a computer-aided design of the building. The room-based design application modifies the blocks based on a spanning length to generate partitions. Each partition represents a different portion of the floor structure that can be spanned by a structural element that has the spanning length in at least one direction. Based on the partitions, the room-based design application determines wall classifications for the walls. The room-based design application generates at least a portion of the design for the floor structure based on the wall classifications and the partitions.

The present invention corresponds to a formwork mechanism for casting and molding concrete, comprising a coffer having a sheet and four plates around the sheet perimeter. Each plate has holes arranged on its front face. Also, the formwork mechanism includes a structural element, connected to one of the plates by fixing means. On the other hand, the structural element has lateral perforations that are aligned with the holes of one of the coffer plates. Fixing means pass through the holes and side holes. The structural element may be a beam, a three or four-beam T, and combinations thereof. On the other hand, using several coffers interconnected with structural elements, formworks are constructed for casting flat reticular slabs; and also for curved reticular slabs with greater slab thickness near the beams supporting the slabs in comparison to the span of the slabs.

The invention relates to the technical field of bridge anti-seismic performance analysis, and particularly discloses a bridge anti-seismic performance real-time analysis method and system based on a graph neural network, and the method comprises the following steps: 1, constructing a bridge inter-span structure graph representation: taking each span of a bridge as a node in the graph, structural elements such as connecting beams and supports between the spans are used as edges between the nodes to form a structural diagram representation of the bridge; each node comprises cross geometric attributes, material characteristics and seismic load information as input characteristics, 2, encoder processing: converting the input characteristics of each node into a higher-dimension hidden embedded layer vi through a linear single-layer perceptron (SLP) by using an encoder, and providing appropriate input for subsequent information transmission and structure response prediction; according to the method, the bridge structure is converted into graph representation, the calculation efficiency is improved, the complexity of traditional finite element analysis is reduced, the method can adapt to different types of bridge structures, and the adaptability of the model is enhanced.

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.