28451results about "Building material handling" patented technology

The invention relates to a steel truss girder digital pre-assembly method and system based on three-dimensional laser scanning, and belongs to the technical field of constructional engineering. The method comprises the following steps: calculating a three-dimensional coordinate and a scanning angle of a scanning observation station based on a steel truss girder design model and field environment point cloud data to obtain observation station layout position parameters; controlling a three-dimensional laser scanner to scan the steel truss girder section by section according to the arrangement position parameters of the observation station, and acquiring original point cloud data of each section of the steel truss girder; performing spatial alignment and noise reduction processing on the original point cloud data to obtain standardized point cloud data; based on the standardized point cloud data, feature parameters of all the segments are segmented and extracted, digital splicing is carried out, and a steel truss girder three-dimensional point cloud model is generated; based on the steel truss girder design model and the steel truss girder three-dimensional point cloud model, the displacement deviation value and the angle deviation value between the segments are calculated, and an assembly error result is obtained; and generating a construction correction parameter set based on the assembly error result. The assembling precision of the steel truss girder can be improved.

The invention relates to the field of integrated manufacturing systems, and discloses a modular integrated building curtain wall system and a mounting method thereof. The system comprises an MIC main body structure module; a curtain wall unit module; the modularized connecting structure comprises a horizontal plug-in type connecting assembly with a deformation compensation gap and a vertical socket-and-spigot type connecting assembly. The socket type connecting assembly is provided with a temperature deformation self-adaptive adjusting mechanism, and the adjusting mechanism comprises a socket structure with a memory alloy sleeve; the BIM intelligent integrated interface comprises a control module and is used for acquiring real-time pose data corresponding to the curtain wall unit module through a preset laser positioning reflector plate; kalman filtering fusion is carried out based on preset parameters of the BIM model and preset wireless stress sensor actual measurement data, and a pose correction amount is generated; and generating an MIC main body structure module, a curtain wall unit module and corresponding module installation information according to the real-time pose data and the pose correction amount. And a more efficient, accurate and economical technical scheme is provided for production of building curtain walls.

The invention discloses a hydration heat monitoring and dynamic regulation and control method and system in a mass concrete pouring process, and relates to the technical field of concrete pouring, and the method comprises the steps: pre-burying a plurality of dual-mode temperature measurement probes in concrete, collecting dual-mode temperature field data in the concrete in real time, and synchronously collecting environmental parameters; carrying out preprocessing, dynamic weight distribution and data fusion on the obtained dual-mode temperature field data; according to the unsteady state heat transfer equation and the hydration heat model, a finite element heat conduction model is constructed, and the total hydration heat and the temperature difference trend are inverted through actually measured temperature field data; predicting a concrete core and surface temperature difference and a surface and environment temperature difference in a future set time period by combining an LSTM neural network model; and according to the predicted temperature difference result, the cooling water flow rate and the cooling water temperature are subjected to closed-loop regulation. Through the combination of dual-mode sensor temperature measurement and heat inversion, the hydration heat temperature difference in the concrete can be predicted in advance, a cooling scheme is regulated and controlled in real time in a linkage mode, and temperature stress cracks are avoided.

The invention discloses a high and large formwork engineering supporting system construction method, and belongs to the technical field of building engineering. Comprising the following steps: step 1, arranging intelligent nodes in a high and large template support system to realize information sharing and group cooperative regulation and control among the nodes; step 2, dividing the support system into a plurality of mutually associated load control areas, and setting differentiated load control parameters; step 3, automatically optimizing a pouring path; 4, when the concrete strength reaches a preset threshold value, the supporting rigidity or the reserved deformation amount is automatically adjusted according to a preset program, and the concrete structure bears the dead weight step by step; 5, the temporary load is automatically compensated, when the load exceeds a safety threshold value, a load redistribution mechanism and a reinforcing device are triggered, meanwhile, an alarm is started, and abnormal data are pushed; and step 6, continuously optimizing control parameters, accumulating construction data, constructing a digital construction record and a knowledge base, and realizing intelligent iterative upgrading of the construction method.

The invention provides an intelligent maintenance method and system for the wall of a squat silo, and the method comprises the steps: applying controllable environment parameters to a concrete test block group with the same proportion through an environment simulation device, and obtaining test block deformation data, moisture content data and stress data; performing time sequence correlation mapping on the test block deformation data, the moisture content data and the stress data and environmental parameters to obtain a maintenance decision data set; acquiring a real-time environment vector through a sensor network deployed on the site of the squat silo; inputting the real-time environment vector into a maintenance decision model, and generating a spraying control instruction by matching the maintenance decision data set; and driving a spraying system to execute operation according to the spraying control instruction, and dynamically correcting spraying parameters based on moisture monitoring data. According to the method, through data-driven intelligent maintenance decision and dynamic closed-loop control, the crack risk of the wall of the squat silo is remarkably reduced, meanwhile, water resource consumption is reduced, and double breakthrough of maintenance quality and resource efficiency is achieved.

The invention relates to the technical field of intelligent construction, and discloses a construction steel structure fabricated building assembly method which comprises the steps that real-time pose data of a steel structure component is collected through a multi-source sensor array; performing multi-rate fusion processing on the pose data to generate six-dimensional state estimation containing position and pose errors; constructing an error matrix in the Lie group SE (3) space based on the state estimation, wherein the error matrix represents the deviation between the component pose and the target pose; and establishing a matrix differential equation model according to the error matrix, and solving an optimal compensation control quantity in a future time domain in a rolling manner through a model prediction control algorithm. Through combination of Lie group space error modeling and rolling time domain optimization, the system can sense the pose deviation of a component in real time and dynamically adjust a control strategy, limitation of traditional static error compensation and online parameter identification and disturbance suppression under complex working conditions are broken through, and uncertainty caused by dynamic changes of a construction environment is effectively dealt with.

The mass concrete curing method based on the intelligent temperature control system comprises the following steps that concrete is divided into a top layer, a bottom layer and a middle layer, each layer is provided with an independent temperature control pipeline, and temperature monitoring points are designed; constructing a three-dimensional thermal field finite element model containing a hydration heat release function, temperature control pipeline heat sink and boundary conditions, and generating data by using a calculation result of the finite element model to train a neural network prediction model; a temperature control pipeline and a temperature monitoring point are installed before mass concrete is poured, and heat preservation is covered after pouring; data is collected in real time and input into the prediction model, the predicted temperature of each temperature monitoring point is output, if the temperature difference control threshold value or the temperature reduction control threshold value is exceeded, temperature control pipeline parameters and heat preservation measures of the corresponding layer are adjusted, and a temperature control strategy is executed after calculation is repeated till the requirement is met. The concrete temperature field is accurately controlled, temperature difference over-limit is effectively avoided, and the mass concrete curing quality is improved.

The invention relates to the technical field of concrete vibration, in particular to an intelligent concrete vibration system and method. The intelligent concrete vibrating system comprises a planning module used for selecting a current vibrating area from a to-be-vibrated range according to construction parameters of the to-be-vibrated range; the multi-dimensional sensor is used for collecting multi-dimensional parameters of the vibrating equipment during vibrating in the current vibrating area; the multi-dimensional parameters comprise vibration frequency, vibration pressure and concrete temperature; the decision module is used for determining a current vibration strategy required by the current vibration area according to multi-dimensional parameters during vibration in the current vibration area, and determining a next vibration area corresponding to the current vibration area in each to-be-vibrated area in the to-be-vibrated range; and the control module is used for controlling the vibrating equipment to perform vibrating operation in the current vibrating area according to the current vibrating strategy, and controlling the vibrating equipment to perform vibrating on the next vibrating area after the vibrating operation of the current vibrating area is executed.

The invention discloses an intelligent control method and system for ALC plate wall transportation and installation based on robot collaboration, and relates to the technical field of building robot collaborative operation, and the method comprises the steps: collecting global data of a construction site, extracting ALC plate position, obstacle distribution and installation site information, constructing a comprehensive path evaluation model, and screening an optimal transportation operation path. A grabbing point and grabbing parameters are determined, and a target ALC plate is recognized and grabbed; the advancing posture of the robot and the stress change condition of the ALC plate are continuously collected; and after counterpoint installation, the robot collects posture, stress and fixed state data of the ALC plate after installation through a sensor, and quality judgment is carried out. According to the method, through construction site global modeling and comprehensive path evaluation, transportation path planning of the ALC plates is optimized, high-precision operation of the whole plate carrying and mounting process is achieved, the construction efficiency and the mounting quality are improved, and good intelligent, self-adaptive and engineering application values are achieved.

The invention discloses a fabricated building curtain wall assembly control system and method in the technical field of building industrialization. The method comprises the steps that building curtain wall assembly data are obtained; respectively inputting the building curtain wall assembly data into the module adaptation degree calculation model, the dynamic load distribution calculation model and the connection efficiency evaluation function calculation model to obtain an adaptation degree coefficient, a dynamic load value and a connection efficiency index; performing dynamic adaptation on the curtain wall unit and the building main body structure based on the adaptation degree coefficient; performing real-time positioning deviation compensation in the installation process based on the dynamic load value; and performing quantitative control on the connection node strength and the overall load distribution based on the connection efficiency index. Compared with the limitation of geometric accuracy and structure safety separation control in the traditional process, the scheme synchronously completes curved surface matching degree improvement and aerodynamic performance optimization in the curtain wall unit installation process, and the industrial pain point that modeling accuracy and wind resistance of a special-shaped curtain wall are difficult to consider at the same time is fundamentally solved.

The invention discloses a mechanical arm obstacle avoidance path planning method based on an improved RRT-Connect algorithm, a smearing mechanical arm and a masonry robot. The mechanical arm obstacle avoidance path planning method comprises the steps that firstly, a fixed sampling function is adopted in a three-dimensional space formed by a starting point Xinit and a target point Xgoal of a path to generate a fixed point; and respectively and simultaneously constructing four random trees between the starting point and the fixed point and between the fixed point and the target point to carry out path search, and generating a path from the starting point to the target point. A target guiding sampling method based on a heuristic function can be introduced into the algorithm of the four-random-tree collaborative path searching mechanism, and the sampling probability is adjusted; and a better path planning effect is achieved by setting a self-adaptive step length strategy, a greedy strategy and other technical means. According to the method, the path planning of the mechanical arm is realized by setting the fixed sampling points to perform the four-way RRT-Connect algorithm, so that the rapid planning is ensured, the path time consumption is reduced, the collision with an obstacle is avoided, and the robustness of the path is enhanced.

The invention discloses an intelligent machine construction method and system for ground concrete base troweling, and relates to the technical field of intelligent construction.The intelligent machine construction method comprises the steps that an intelligent robot collects sensing data of a concrete base in a construction area in real time; the sensing data is analyzed through a preset algorithm to generate a construction strategy, and troweling operation is automatically completed; in the troweling operation process, the intelligent robot transmits real-time sensing data to the cloud platform, and a closed-loop monitoring system of construction quality is formed. Through preset path planning, parameter adjustment and an image recognition algorithm, accurate matching of troweling operation with the base layer state is achieved, troweling uniformity is improved, manual dependence is reduced, perception data in the robot operation process are uploaded to the cloud platform in real time, comparative analysis and feedback control are carried out, and the troweling efficiency is improved. Quality problems can be recognized and corrected in real time, construction data in the whole process can be traced, and remote construction supervision is visualized.

The invention provides a construction method of a prefabricated multi-ribbed cavity floor, and belongs to the technical field of prefabricated multi-ribbed plate construction. The construction method of the prefabricated multi-ribbed cavity floor comprises the steps of full-hall scaffold building, main keel laying, overall leveling and the like. The construction method comprises the steps that S1, full-hall scaffold building is conducted, specifically, when a full-hall scaffold is built, vertical rods on the upper layer and the lower layer are required to be aligned, the vertical rods are uniformly arranged from the two sides of a cast-in-place ribbed beam, the vertical rods are arranged at the intersection positions of floor elastic bidirectional lines, and scaffold boards are laid under the vertical rods; S2, main keels are laid, specifically, when the main keels are installed, the main keels are required to be arranged in order and not to be inclined, and the two vertical rods at the intersection positions must abut against the main keels; and S3, overall leveling is conducted, specifically, after the main keels are laid, overall leveling is conducted according to control lines, and full-hall scaffold formworks are hoisted on the main keels. The cavity formworks are supported by placing the modularized cavity formworks which are machined and formed in a factory-like mode, and accurate and rapid installation of an upper plate of the prefabricated multi-ribbed plate is achieved by installing limiting square pipes.

The invention discloses a fabricated building based on a BIM technology and a construction method, and relates to the technical field of fabricated buildings. The structure comprises a floor and a prefabricated wall body, multiple sets of embedded steel bars are arranged at the top of the floor, the outer sides of the embedded steel bars are sleeved with positioning assemblies, multiple sets of assembling holes are formed in the bottom of the prefabricated wall body, the inner diameter of each assembling hole is larger than the outer diameter of each embedded steel bar, and each positioning assembly comprises a positioning outer cylinder and an adjusting inner cylinder; and the adjusting inner cylinder is sleeved on the embedded steel bar. A limiting piece is controlled to slide downwards along a guide hole, at the moment, a telescopic rod can slide in the direction of a positioning outer cylinder, and along with continuous descending of a prefabricated wall, the lower half portion of the hinged position of a positioning supporting rod continuously swings inwards, the upper half portion of the hinged position of the positioning supporting rod swings outwards, and the telescopic rod slides into a sliding cavity; therefore, the gap can be adjusted while the position stability of the prefabricated wall is guaranteed, a cushion block does not need to be independently arranged, construction is easy, and the construction precision is high.

A U-shaped recycled concrete composite beam, and a design and construction method therefor, the U-shaped recycled concrete composite beam comprising a prefabricated concrete casing (11) and cast-in-place compression-zone concrete (12), wherein the prefabricated concrete casing (11) is a recycled concrete casing, and has a U-shaped appearance; the cast-in-place compression-zone concrete (12) is high strength concrete, and the cast-in-place compression-zone concrete (12) is concrete with a strength grade of C50-C80; the thickness h1 of the bottom of the prefabricated concrete casing (11) is not less than 80 mm, and the widths b1 and b3 of lateral surfaces of the prefabricated concrete casing (11) are both not less than 45 mm; the width b2 of the cast-in-place compression-zone concrete (12) is not less than 100 mm; and a steel bar cage is provided in the U-shaped recycled concrete composite beam to serve as a framework. Compared with the prior art, the fire-resistant characteristic of recycled concrete and the excellent mechanical properties of high-strength concrete are fully exerted, the flexural bearing capacity and ductility of the recycled concrete beam can be effectively improved at room temperature, the bursting phenomenon of a fire-exposed surface is reduced at a high temperature, and the temperature field in the beam is significantly reduced.

The invention provides a spoke type cable-supported grid structure construction method and system based on force shape coordination, and relates to the field of building engineering construction. The method comprises the steps that a cable net shape distribution model is constructed; performing reverse force pushing and construction stage segmentation to obtain a plurality of expected construction stages and a plurality of expected form distributions; monitoring and acquiring first actual form distribution of the first expected construction stage, and performing cable net lifting and tensioning collaborative operation optimization in combination with second expected form distribution to obtain second optimal lifting and tensioning operation parameters; and the construction operation of the second expected construction stage is executed until the whole construction period is completed. The technical problem that the construction precision and the construction efficiency are affected due to the fact that synchronous operation of lifting and tensioning cannot be accurately controlled in a traditional construction method is solved, it can be ensured that each construction stage can accurately achieve the design target through accurate force shape coordination, synchronous control of lifting and tensioning operation and real-time monitoring and optimization adjustment, and the construction efficiency is improved. And the construction precision and efficiency are improved.

The invention relates to the technical field of building construction, in particular to a construction method of a variable-curvature super-depth fusiform skylight in a steel structure, and solves the construction problem of a complex space curved surface through digital design, factory prefabrication, intelligent installation and real-time monitoring and compensation. Through a digital twin-driven construction technology system, the worldwide problems of the variable-curvature ultra-deep steel structure in the aspects of form precision, mechanical stability and construction efficiency are solved, a technical normal form capable of being popularized is provided for the ultra-deep and variable-curvature steel structure, and building form innovation is promoted. And meanwhile, the dependence on manpower is reduced through modular and mechanical operation, the construction period is shortened, the safety is improved, and the cost is reduced by combining prefabricated unit components with dynamic monitoring.

An apparatus for screeding concrete to produce a level finished surface includes a frame assembly having a front end and rear ends and a pair of spaced vertically oriented stabilization legs supporting a generally horizontal front member. An extendable boom assembly is provided having front and rear ends, and an exterior boom section pivotably secured to the frame assembly proximate said rear end. The extendable boom assembly is also adjustably mounted on said front member to allow generally lateral motion of the boom.

The invention discloses an old wind power plant fan foundation small-to-large capacity increasing structure and a transformation construction method. The old wind power plant fan foundation small-to-large capacity increasing structure comprises an original fan foundation, a newly-poured reinforced concrete foundation, a vertical anchor bolt cage connecting system and a radial anchor bolt connecting system. The connecting structure of the bottom section of the new fan tower drum and the new fan foundation comprises a vertical anchor bolt cage connecting system and a radial anchor bolt connecting system. The vertical anchor bolt cage connecting system is fixed in the original fan foundation, and the radial anchor bolt connecting system is fixed in the newly-poured reinforced concrete foundation. According to the new fan foundation, the diameter of the middle pier is expanded so as to arrange a new tower tube, the height of the middle pier is not changed, the height of the middle pier of the newly-poured foundation almost does not need to be increased, and the using amount of concrete is greatly reduced. Meanwhile, according to the structure, an original vertical anchor bolt cage connecting system is reserved, a radial anchor bolt connecting system is adopted for enhancing connection between the bottom section of the fresh air fan tower barrel and the fan foundation, the transformation cost and the connection reliability are effectively controlled, and the maximization of reutilization of the original fan foundation and the controllability of the cost of the fresh air fan foundation are achieved.

The invention discloses a method for preventing and controlling temperature stress cracking of a mass concrete structure. The method comprises the following steps: preparing low-heat high-toughness concrete; low-heat high-toughness concrete is adopted for pouring a mass concrete structure, and simulation calculation is conducted on a transient temperature field and time-varying temperature stress in the mass concrete construction process; and according to a simulation calculation result, in order to avoid temperature stress cracking in the mass concrete structure, the concrete mold entering temperature, the pouring procedure and the construction maintenance are adjusted in good time. The method can be used for preparing the material capable of reducing the adiabatic temperature rise peak value of the mass concrete and improving the tensile strength of the concrete, reasonably determining the pouring construction maintenance system of the mass concrete, and preventing the mass concrete structure from cracking due to the fact that the temperature stress exceeds the allowable tensile strength of the concrete in the construction process.

The invention discloses a cave depot type data center based on underground river construction and a construction method and an operation method thereof, and belongs to the technical field of cave depot type data center construction. The data center comprises a mountain body, an underground river is developed in the mountain body, the underground river flows through a karst cave in the mountain body, a plurality of equipment storage tunnels are arranged on one side or two sides of the underground river in the mountain body, and the equipment storage tunnels are communicated with the karst cave through slope connecting tunnels. An equipment cabinet and a liquid heat exchanger are arranged in the equipment storage tunnel, a river water conveying assembly is connected to the liquid heat exchanger, and the end, away from the liquid heat exchanger, of the river water conveying assembly penetrates through the slope connection tunnel and extends into the underground river. The liquid cooling mode is adopted for cooling and heat dissipation of the equipment cabinet, the direct temperature control mode remarkably improves the heat dissipation and cooling effects of the IT equipment cabinet, meanwhile, the heat exchange efficiency is high, and the operation energy consumption of a data center can be reduced.

The invention discloses a prefabricated wallboard assembly structure and an assembly method thereof, and relates to the technical field of building prefabricated wallboards, the prefabricated wallboard assembly structure comprises a first wallboard and a second wallboard, a plurality of inserting grooves are formed in one side of the first wallboard, and hydraulic expansion splicing mechanisms are symmetrically mounted in the inserting grooves up and down; the hydraulic expansion splicing mechanism is composed of a metal sleeve, meshing teeth, a sealing rubber ring, a piston and an oil injection mechanism, the metal sleeve and the inserting groove are welded and fixed, an oil cavity is formed in the metal sleeve, multiple sets of mounting grooves are formed in one end of the metal sleeve, four annularly-distributed sliding grooves are formed in the outer sides of the mounting grooves, and the sliding grooves are communicated with the oil cavity. A plurality of inserting blocks are arranged on one side of the second wallboard, connecting holes are formed in the inserting blocks in an up-down symmetrical mode, a plurality of meshing grooves are formed in the inner ends of the connecting holes, and the problem that most existing prefabricated wallboards are connected through bolts, stress concentration is prone to occurring, and consequently the structural stability is reduced is solved.

To provide a construction and management method of a columnar body capable of controlling a horizontal position, an inclination angle, and a height of a columnar body such as a pile with high accuracy, with a simple structure, and to provide a construction and management system of the columnar body.SOLUTION: A construction and management method of a columnar body includes: an imaging step of acquiring a photographed image of the columnar body so that two or more gauge marks capable of acquiring the coordinates are included in the photographed image, by a camera capable of acquiring the coordinates of an imaging position; a 3D data creation step of creating 3D data including the coordinates of the imaging position and the coordinates of the gauge marks, and a 3D model of the columnar body arranged at a predetermined horizontal position, an inclination angle, and a height; an image synthesizing step of generating a composite image by synthesizing the 3D model with the photographed image based on the positions of the gauge marks in the photographed image and the coordinates of the imaging positions and the coordinates of the gauge marks in the 3D data; and an adjustment step of adjusting the horizontal position, inclined angle, and height of the columnar body so that a difference between the position of the columnar body in the composite image and the position of the 3D model becomes equal to or less than a predetermined allowable error.SELECTED DRAWING: Figure 1

The invention relates to a high-speed railway box girder longitudinal bar distribution method, which comprises the following steps of S1, setting a longitudinal bar datum line at a preset position of a box girder template through a high-precision laser measurement tool and a digital positioning system, and ensuring that the initial position of a longitudinal bar is accurately butted with a design drawing, so that the distribution error is reduced to the greatest extent; through a high-precision laser measuring tool, a digital positioning system and laser scanning equipment, it is ensured that the arrangement precision of longitudinal bars reaches the millimeter level, the distribution error is reduced to the maximum extent, the construction quality is ensured, manual intervention is reduced through an automatic steel bar bracket mounting device and an automatic binding device of a multi-axis mechanical arm structure, and the construction efficiency is improved. The construction efficiency is improved, it is ensured that the installation precision of the steel bars is highly consistent with the design requirement, in addition, a real-time monitoring system is arranged in the whole material distribution process and comprises a sensor, a visual recognition system and a holographic projection technology, and deviation can be detected and corrected in real time in the longitudinal bar arrangement process.

The invention discloses a double-row steel sheet pile cofferdam construction method, which comprises the following steps of: before construction, measuring the original riverbed elevation of a cofferdam piling area, organizing steel pipes to enter a site according to a cross-section diagram and a construction sequence of a cofferdam, timely removing and recording if stone blocks and the like at the river bottom are measured in the measurement process, and before construction, checking and maintaining all mechanical equipment, so that the construction efficiency is improved. After entering the field, the steel pipes are stacked according to specifications, varieties and classifications, before pile conveying, the models and the number of the steel pipes used during construction are determined, and the steel pipes are arranged strictly according to the designed section. Compared with a construction scheme of adopting a Larsen steel sheet pile cofferdam and a temporary construction platform, the construction cost, the rental cost, the earthwork transportation cost, the earthwork compaction cost, the earthwork filling excavation filling cost and the like of temporary facilities can be saved, building construction is carried out in a water area needing a large area, the construction period is long, and the construction cost is low. The method is more economical and reasonable when being used for constructing structures in water under the conditions of high water level and the like.

The invention discloses a wall engineering building robot collaborative construction operation method and system, and relates to the technical field of prefabricated building construction intelligent control, and the method comprises the steps: building a component parameterized model based on a building information model, extracting wall construction parameters, generating a standardized component splitting rule, and carrying out construction input. Construction task scheduling information is obtained through multiple types of building robots, and the wall body measuring and positioning and component carrying and installing processes are executed. And construction path adjustment and collaborative scheduling optimization are carried out based on construction real-time data, and robot quality detection feedback and operation task dynamic correction are completed. The method is high in overall adaptability and fault tolerance, the construction quality and efficiency can be improved, the problems of static distribution, uncontrollable errors, unintelligent scheduling and the like in the prior art are solved, and the method has good engineering landing performance and system integration prospects.

The present disclosure provides a cylindrical structure construction platform that both a first telescopic portion and an elastic member drive a guiding wheel to tightly abut against an outer template, adjusting radial positions of a pouring pipe and a tamping device according to an outline of the outer template by a second telescopic portion to reduce construction errors, adjusting an inclination angle of the guiding wheel by an adjusting mechanism, a slewing mechanism driving a rotary table to drive the guiding wheel to climb along a surface of the outer template, the pouring pipe is poured layer by layer from the bottom to the top of a pouring cavity to reduce a height difference during pouring for further reducing generation of air holes, the tamping device vibrates layer by layer from the bottom to the top of the pouring cavity to further eliminate the air holes.

The invention discloses an intelligent concrete automatic curing system and method based on real-time monitoring, and the system comprises a multi-parameter sensing module which collects the environment parameters and internal structure parameters of a concrete structure through a plurality of sensors and label identification codes, and an edge calculation module which is used for carrying out the preprocessing, feature extraction and emergency decision-making of collected data. The cloud intelligent module is used for storing data, establishing a prediction model and generating a dynamic maintenance strategy; the maintenance execution module is used for adjusting and executing spraying, temperature control or crack repair operation according to the maintenance strategy; by integrating structural strain, crack detection and environment air pressure monitoring, the limitation of traditional single temperature and humidity monitoring is broken through, multi-dimensional sensing and accurate diagnosis of concrete are achieved, meanwhile, the system combines a physical model and a data driving model, the self-adaptive optimization capability is achieved, and the system is suitable for large-scale popularization and application. And the edge gateway is adopted to process emergencies, and the cloud platform is responsible for global optimization, so that the system gives consideration to the real-time performance and the calculation depth, and the maintenance efficiency and the concrete quality are effectively improved.

The invention discloses a pre-embedded latticed column dynamic aligning and straightening device and a construction method thereof, the device comprises an adjusting mechanism, a locking piece and a supporting steel frame installed on the ground, the supporting steel frame surrounds the periphery of a latticed column, and a composite sensing system is further arranged at the top of the latticed column; wherein one end of the supporting steel frame is arranged in the movable platform in a sleeved mode, the supporting steel frame and the latticed columns are provided with mutually-corresponding preset hole positions for the locking pieces to penetrate through, the adjusting mechanism comprises a plurality of telescopic pieces extending in the vertical direction and the horizontal direction, one end of each telescopic piece extending in the horizontal direction makes contact with the supporting steel frame, and the other end of each telescopic piece makes contact with the latticed columns. The fixed end of the telescopic piece extending in the vertical direction is arranged on the movable platform, and the movable end of the telescopic piece is in contact with the supporting steel frame. According to the method, the straightening efficiency is improved, the couple unbalance and welding seam cracking risks of multi-equipment cooperative adjustment are reduced, a real-time feedback closed-loop control mechanism is formed, and the problem of manual reading error accumulation is avoided.

The invention discloses a large-span truss hoisting and splitting system and method based on digital twinning, and belongs to the technical field of building construction, and the system comprises a physical entity unit, a data acquisition and transmission unit, a digital twinning model unit, a function service and data analysis unit and an application and interaction unit. According to the invention, through real-time sensing of a physical entity state, multi-source data fusion transmission, high-precision digital twinning modeling, intelligent simulation analysis and decision optimization, and fusion of multi-modal man-machine interaction, a virtual control system which is in whole-course synchronous mapping and bidirectional interaction with a physical entity is constructed; according to the method, real-time visual monitoring, trend prediction and risk early warning of the hoisting and splitting process can be achieved, scheme preview and dynamic optimization are supported, virtual-real fusion operation guidance is achieved through the AR technology, and the safety, precision and efficiency of hoisting and splitting operation of the large-span truss are improved.