25 results about "Constructability" patented technology

The invention relates to the technical field of data processing, and discloses a three-section combined structure design method and system for an ultrahigh wind power generation tower. The method comprises the following steps: analyzing wind speed distribution data through a wind load-structural dynamics-material mechanics coupling algorithm to obtain rigidity distribution functions and frequency avoidance constraints of three functional partitions, performing multi-objective optimization on a lower truss section to obtain geometric parameter configuration, performing fluid-solid coupling vibration control design on a middle multi-edge transition section, and performing multi-functional partition design on the middle multi-edge transition section. And aeroelastic instability prevention and control design is carried out on the upper cylindrical section, integrated dynamic coordination processing is carried out on the three-section structure, multi-working-condition verification is carried out through a large eddy simulation-finite element coupling verification algorithm, and target design parameters are obtained. The wind power tower drum solves the technical problems that the existing wind power tower drum technology cannot break through the limitation of the 360-meter super height and cannot meet the requirements of structural safety, economical efficiency and constructability at the same time.

The invention relates to a CFD-based in-situ 3D printing shield secondary lining constructability optimization method, and belongs to the technical field of tunnel construction. The method comprises the following steps: constructing a joint simulation platform, calibrating the size of a single-layer secondary lining, establishing a CFD simulation geometric model, setting boundary conditions of a physical field, simulating a printing process, and optimizing a construction process based on a simulation result. According to the method, the quality source items of concrete layer-by-layer stacking in the in-situ 3D printing secondary lining process are loaded and simulated by configuring the UDF, and the single-layer secondary lining size calibration result is synthesized, so that the function relationship between the quality source items and absolute coordinates in a closed calculation domain is established; according to the in-situ 3D printing shield secondary lining construction method, the effect of multi-layer printing of fresh concrete along with movement of a spray head is simulated, the overall efficiency of modeling simulation is improved, good universality is achieved, and an in-situ 3D printing shield secondary lining construction scheme with higher constructability can be planned according to different tunnels.

The invention discloses a CFD (computational fluid dynamics)-based TBM (tunnel boring machine) wet spraying primary lining constructability optimization method, and belongs to the technical field of tunnel construction. The method comprises the following steps: constructing a CFD geometric model comprising a jet nozzle, a tunnel ring surface and a closed computational domain, setting a multiphase flow model, viscosity parameters and a dynamic particle jet source, and simulating a concrete jet deposition process; representing partial liquid state behavior of sprayed concrete deposited on the wall surface based on the wall surface liquid film thickness, correcting a simulation result by synthesizing a scale factor after representing the actual spraying layer thickness, and introducing the scale factor to correct a simulation deviation; and the spraying angle, the spraying speed and the accelerator mixing amount are optimized in combination with the correction result, and optimal process parameters are generated and transmitted to a TBM control system to be executed. According to the method, physical experiments are replaced by virtual simulation, construction process visualization and result prediction are achieved, and the method is good in universality, high in simulation efficiency and suitable for efficient construction of the primary lining.

This utility model belongs to the technical field of reinforced concrete composite shear wall building structures in civil engineering, specifically relating to a bidirectional hollow slab composite shear wall with opening-narrowing stirrups. By setting opening-narrowing stirrups corresponding to the horizontal holes of the bidirectional hollow slab at the edge members at both ends of the shear wall, and by setting longitudinal reinforcement distributed within the wall and longitudinal reinforcement of the edge members at the corresponding positions of the vertical holes of the bidirectional hollow slab and the opening-narrowing stirrups, the structure not only meets design requirements and facilitates construction, but also, due to the special structure of the opening-narrowing stirrups, the constraint area of ​​the opening-narrowing stirrups on the core concrete can be adjusted by the angle formed by the longitudinal and horizontal sections. This allows the constraint effect of the opening-narrowing stirrups on the core concrete to gradually decrease towards the opening end, forming a vertical energy dissipation zone under large horizontal lateral displacement. This effectively controls the structural failure mode and energy dissipation method, achieving a unity of constructability, good economy, and seismic performance in the new composite shear wall structure.

The invention belongs to the technical field of 3D printing concrete materials, and particularly relates to 3D printing waste glass recycled lightweight aggregate concrete and a preparation method thereof. The concrete is prepared from the following raw materials: cement, silica fume, fine aggregate, waste glass recycled lightweight aggregate, a viscosity modifier, nano silicon dioxide, nano cellulose fibers, a water reducing agent, fly ash, a defoaming agent and water. The lightweight 3D printing concrete with different densities is prepared by replacing sand with the lightweight aggregate prepared by recycling the waste glass, the tackifier, the thixotropic agent, the nano-crystalline cellulose fiber, the water reducer and the fly ash are used for competitive synergistic effect to improve the water-retaining property and the rheological property, a nano-micron multi-scale synergistic system is constructed, multi-stage particle accumulation is effectively realized, and the 3D printing concrete with different densities is prepared. The problems that the constructability is difficult to improve while the density of conventional 3D printing lightweight aggregate concrete is reduced and the lightweight aggregate of low-density 3D printing concrete floats upwards are solved, the printable window time is prolonged, and the interface performance of an aggregate matrix is enhanced.

This invention relates to a method and system for improving the constructability of inclined 3D printed concrete based on finite element simulation. The method includes: modeling the inclined 3D printed structure, performing strip division, segment division, and mesh division to obtain the target model, constructing a set of elements and nodes for each segment, and setting the model parameters of the target model; activating the element set, nozzle constraints, and extrusion pressure of the corresponding segment segment by segment, assigning age variables to the activated nodes, and applying gravity to the activated parts; performing finite element calculations on the segment-by-segment activation process until the structure is significantly damaged, obtaining the maximum printable height and corresponding deformation before damage; adjusting the process parameters, remodeling if the initial inclined 3D printed geometry changes, otherwise resetting the process parameters until the maximum printable height is maximized and the corresponding deformation is minimized. Compared with the prior art, this invention improves the current situation where existing models have insufficient fidelity in reproducing the inclined 3D printed concrete process and low prediction accuracy.

A coping and a panel including same can be stably fixed without the need for a post process by a simple fastening method in which the coping is fitted and fastened from top to bottom when the coping is installed, and the risk of water leakage can be greatly reduced by forming a drain space into which water flows. According to the present invention, the coping is configured in a dry type, so that environmental pollution can be reduced and constructability can be improved without a post-process. The present invention employs a dry construction method which enables adaptive construction by mechanical assembling such as bolt tightening without using an adhesive which requires waiting for curing, and thus requires lower difficulty of construction than wet construction, requires short construction period, and enables construction regardless of season, thereby achieving a high construction efficiency.

The application relates to the technical field of computer-aided design. A power engineering design scheme optimization method is disclosed, which comprises the following steps: receiving a power engineering design scheme, establishing an engineering structure three-dimensional model according to component geometric parameters, spatial positions and connection relationships; constructing a construction deviation model corresponding to an engineering construction process, introducing the construction deviation model into the engineering structure three-dimensional model to simulate the construction process, and obtaining state change information of each structure node in the construction process; identifying the propagation of the construction deviation in the engineering structure and the construction risk caused by the construction deviation according to the state change information; generating a candidate design adjustment scheme based on the construction deviation propagation and the construction risk, and obtaining an optimized design scheme through simulation screening and outputting corresponding modification prompts. The application can identify the construction deviation propagation and risk evolution in the design stage, and automatically generate an optimized design scheme, so as to improve the constructability and safety of the power engineering design scheme.

The application discloses a kind of transmission line constructability automatic checking method, belong to transmission line construction technical field, this method passes through multi-source data access and fusion, constructability automatic checking, change increment synchronization and feedback monitoring collaborative mechanism, solve the problem of the existing technology in multi-source data space-time reference not unified, multi-frequency heterogeneous data dynamic synchronization mechanism is missing and the waste of full-amount rechecking computing resources, can be realized in the whole process of transmission line construction to the automatic checking of constructability, effectively improve the accuracy and efficiency of checking;Realize the mode upgrading from full-amount checking to local incremental checking, and the checking calculation amount is reduced by more than one order of magnitude;Through the feedback monitoring mechanism of the version change of continuous monitoring data source and early warning, realize the automatic selective rechecking driven by data change, significantly improve the timeliness of construction decision.

To provide a column-slab joint structure that enables simplification of the structure and improvement of constructability. [Solution] The column slab joint structure according to the present invention comprises a reinforced concrete slab and upper floor columns and lower floor columns separated by the reinforced concrete slab, wherein the reinforced concrete slab is joined to the upper floor columns and lower floor columns by a joint member made of precast reinforced concrete, at least one of the upper floor columns and lower floor columns has a recess on its end face, and the joint member has a protrusion that fits into the recess.

The present application relates to the technical field of 3D printing, and discloses a 3D printing large-scale building practical slicing and path planning method, which comprises the following steps: globally planning a path for avoiding obstacles in the horizontal and vertical directions of a building model, and dividing a printing area; slicing the printing area; determining a local printing path for a specific wall position, and making a printing path for a force-bearing wall, which is to first walk along the outer contour of the wall and then walk along the inclined web member of the internal truss of the wall; for a non-force-bearing wall, first walk along the outer contour and then walk along the Z shape; the end point of the lower layer is the start point of the upper layer; and analyzing whether the interval time between layers exceeds the initial setting time of the concrete. The present application makes the working radius of the 3D printer free of obstacles and covers the force-bearing wall, and the number of printer movements is minimized; the wall is continuously printed, the concrete printing is ensured not to be interrupted, and the empty walking rate is reduced; the printing head can avoid sharp turns, the amount of printing material is small; and the constructability before the initial setting of the concrete, the printing appearance quality, the eccentric compression strength after the final setting, the stiffness and the stability are satisfied.

The present application relates to the field of data processing technology, and discloses a method and system for designing a three-section combined structure of an ultra-high wind power tower. The method comprises: analyzing wind speed distribution data through a wind load-structural dynamics-material mechanics coupling algorithm to obtain the stiffness distribution function and frequency avoidance constraints of the three functional partitions, performing multi-objective optimization on the lower truss section to obtain the geometric parameter configuration, performing fluid-solid coupling vibration control design on the middle multi-faceted transition section, performing aeroelastic instability prevention and control design on the upper cylindrical section, performing integrated dynamic coordination processing on the three-section structure, and performing multi-working condition verification through a large eddy simulation-finite element coupling verification algorithm to obtain the target design parameters. The present application solves the technical problem that existing wind power tower technology cannot break through the 360-meter ultra-high height limit and simultaneously meet the requirements of structural safety, economy, and constructability.

The invention relates to a post-construction method of a pipe-jacking receiving well, which comprises the following steps: step S101, pipe-jacking construction: performing pipe-jacking construction to a design position of the receiving well; s103, grouting reinforcement and pile foundation construction are conducted, specifically, a first pipe joint fixedly installed at the rear end of the pipe jacking machine head is a connecting pipe joint, and grouting reinforcement is conducted on a soil body on the peripheral side of the connecting pipe joint; constructing a plurality of pile foundations, wherein one pile foundation penetrates through the connecting pipe joint; and S105, receiving well construction is conducted, specifically, the receiving wells are constructed at the multiple pile foundations. According to the post-construction method, construction of the starting well is conducted firstly, then pipe jacking construction is conducted, projects such as surrounding important buildings, construction under construction, high-speed railway construction and civil land expropriation and demolition can be traversed firstly, and finally receiving well construction is conducted, so that the working efficiency of pipe jacking construction can be improved, and synchronous construction with surrounding special buildings can be achieved; in addition, the connection between the jacking pipe and the receiving well can be improved, the overall stability between the jacking pipe and the receiving well is improved, and the reasonability and feasibility of sequential construction between the jacking pipe and the receiving well are improved.

The invention belongs to the technical field of civil engineering concrete laminated shear wall building structures, and particularly relates to a construction method of a bidirectional evacuation plate laminated shear wall connected by opening narrowing stirrups. The opening narrowing stirrups corresponding to the horizontal holes of the two-way evacuating plate are arranged at the edge components at the two ends of the shear wall, and the in-wall distribution longitudinal bars and the edge component longitudinal bars are arranged at the corresponding positions of the vertical holes of the two-way evacuating plate and the opening narrowing stirrups respectively, so that the structure can meet the design requirement, and construction is facilitated; due to the special structure of the opening narrowing stirrup, the restraining area of the opening narrowing stirrup on the concrete in the core area can be adjusted and controlled through the included angle formed by the longitudinal section and the horizontal section, the restraining effect of the opening narrowing stirrup on the concrete in the core area is gradually reduced towards the opening end, and a vertical energy dissipation area can be formed under large horizontal lateral movement; the structural damage mode and the energy consumption mode are effectively regulated and controlled, and the unity of constructability, good economical efficiency and anti-seismic performance of the novel superimposed shear wall structure is achieved.

A prefabricated part non-rib-out connecting device comprises a first embedded part, a second embedded part and a connecting part, the embedded end of the first embedded part is embedded in a first prefabricated part, the connecting end of the first embedded part extends out of the first prefabricated part, the embedded end of the second embedded part is embedded in a second prefabricated part, and the connecting end of the second embedded part extends out of the first prefabricated part. The connecting end of the second embedded part extends out of the second prefabricated part, in the assembling state, the connecting end of the second embedded part is supported on the connecting end of the first embedded part in the vertical direction to achieve middle bearing and lower bearing and inserting of the first embedded part and the second embedded part, and the connecting part is used for connecting the upper portions of the first embedded part and the second embedded part to achieve upper pulling connection; according to the device, the situation that hoisting time is continuously occupied due to steel bar interference can be avoided, the construction procedures of component positioning, fixing, supporting and the like can be reduced, the project constructability is remarkably improved, the construction period is shortened, and meanwhile effective control over the project construction cost and quality is facilitated.

The present invention relates to prefabricated shear reinforcement that is built in the interior of a slab around a column, more specifically to prefabricated shear reinforcement that is capable of having a plurality of bottom and top main bars whose one end extending into a column and a spiral stirrup bent continuously to form a plurality of rectangular shapes surrounding the bottom and top main bars, thereby having excellent fabrication, constructability, and space utilization, providing economical advantages, minimizing labors needed on a construction site, and reducing a period of construction.

The application discloses a novel multi-time scale scheduling method of a power system, and relates to the technical field of power system scheduling control, and comprises the following steps: S1, constructing a space-time state atlas; S2, using the state atlas to perform regional constructability mapping analysis; S3, using a network construction capability matrix to construct a resource allocation time sequence structure under a multi-time scale; S4, using the network construction capability matrix and a resource regulation atlas to perform regulation link constraint integration; S5, using a regulation capability structure to perform scheduling hierarchical regulation structure fusion; and S6, using response mapping to generate a scheduling output of constraint fusion. Through the setting of a regional response behavior evaluation mechanism based on a residual mapping and a response reconstruction model, response trajectory deviation information of regional resources under a multi-time scale can be dynamically extracted, and a residual dominant partition dynamic adjustment basis is established, so that resource scheduling of different regions under a future time scale is optimized and adjusted according to response trend evolution.

To improve workability at construction sites while ensuring reinforcement effect of a framework even when large seismic forces act on a building.SOLUTION: A framework reinforcement structure for reinforcing a framework of a building comprises: at least one dividing member that extends inside the framework along a vertical direction and divides the inside of the framework into a plurality of regions in a front view of the framework; and at least one wooden brace that extends along a diagonal direction in either one of a pair of adjacent regions out of the plurality of regions inside the framework.SELECTED DRAWING: Figure 1

The application relates to a magnetic field controlled 3D printing concrete constructability improving device and method, wherein the 3D printing device comprises a printing unit, a magnetic field unit and a control unit; the printing unit comprises a printing platform and a printing device body arranged above the printing platform; the magnetic field unit is used for applying a magnetic force to concrete on the printing platform; and the control unit comprises a printing control element connected with the printing unit and used for controlling the printing device body to extrude the concrete, and a magnetic field control element connected with the magnetic field unit; during printing, the control unit controls the magnetic force size according to the printing height and the concrete hardening state, so that the concrete does not deform. Compared with the prior art, the application can solve the problem that 3D printing concrete is prone to overturning and collapse, the method can obtain higher concrete constructable layers and a stable printing construction process, the 3D printing concrete constructability is improved, the printing operation is convenient, the concrete performance is excellent, and an automatic additive manufacturing process is realized.

The invention relates to the field of BI parameter design, and discloses an AI-based BI parameterization design automatic optimization system, which performs autonomous learning and optimization on BI data through an AI engine fusing reinforcement learning and Bayesian optimization, and automatically generates a design scheme, and the structure, energy consumption, constructability and regulation compliance indexes of the system calculation scheme. According to the method, the problem severity degree is intelligently evaluated, the problem severity degree is divided into a mild problem, a moderate problem and a severe problem, differential processing strategies of parameter fine adjustment, algorithm iteration and scheme regeneration are adopted for different levels, unnecessary global recalculation in a traditional method is avoided, calculation resources are remarkably saved, and the method is suitable for large-scale popularization and application. Meanwhile, the system supports VR immersive man-machine interaction, scheme evaluation and adjustment are facilitated, and the design efficiency, the automation level and the scheme quality are effectively improved.

The invention relates to a pre-assembled shear-resistant steel bar installed in a bottom plate around a column, in particular to a pre-assembled shear-resistant steel bar which comprises a plurality of lower main steel bars and upper main steel bars with one ends extending towards the inner side of the column respectively, and folding shear-resistant steel bar strip steel wires continuously bent into a quadrangle to surround the lower main steel bars and the upper main steel bars. The device has good manufacturability, constructability and space utilization rate, is economical and practical, and can reduce the labor force of a construction site and shorten the construction time. The pre-assembled shear reinforcement according to the present invention is mounted inside a floor around a column, and is characterized by comprising: a plurality of lower main reinforcements provided on the lower side inside the floor, one end of each of the lower main reinforcements extending toward the inside of the column; the upper main reinforcements are arranged on the upper side of the interior of the bottom plate and are parallel to the lower main reinforcements, and one ends of the upper main reinforcements extend towards the inner side of the column; and the folding type shear-resistant steel bar strip steel wires are continuously bent into quadrangles so as to surround the lower main reinforcements and the upper main reinforcements.

The invention discloses a maintainability safety check analysis method and system for oil and gas field project assets, and the method comprises the steps: compiling a maintainability project asset classification table according to a project construction flow chart and a project asset list, and generating a check card of each type of maintainability project assets according to the maintainability project asset classification table, and performing maintainability safety inspection on each device in the project construction three-dimensional model based on the inspection card, analyzing and outputting an inspection report, and making a rectification list based on the inspection report and tracking. Daily operation, maintenance inspection and analysis are carried out on project assets in the project construction stage from the angles of owner operation and maintenance, project constructability, operability and maintainability are unified, oil and gas field projects are more efficient and have more economic benefits in the whole life cycle, and a large amount of construction investment and operation and maintenance cost can be saved for owners.

The present application relates to the oil and gas drilling engineering technical field, specifically relates to a kind of directional drilling track optimization method based on GRU-MPC fusion model, constructs the time series prediction model of drill bit track state in the process of while drilling, introduce the rolling prediction of track state in the well to be drilled well length by gate cycle unit network, and the prediction result is as state prediction model in model predictive control.On this basis, in combination with engineering constructability constraint, construct the multi-objective evaluation function of fusing track deviation, trajectory smoothness, drilling efficiency and control stability, and realize the adaptive decision of track optimization under different working conditions by dynamic weight adjustment mechanism.System carries out prediction evaluation to candidate control sequence in each control cycle, only executes the optimal control decision of current cycle, and repeats the above-mentioned prediction and optimization process after obtaining new while drilling data, to realize the rolling multi-objective optimization of directional drilling track control.

To provide a structure that can improve constructability. [Solution] The device comprises one member 1, the other members 2a, 2b, and connecting fittings 3a, 3b. One member 1 is inclined downwards in the front-rear direction. The connecting fittings 3a, 3b are U-shaped with opposing pieces 4, 5 in the front-rear direction and a receiving portion 6 between the opposing pieces 4, 5, and are attached to the upper surface of one member 1. The other members 2a, 2b are placed on the receiving portion 6 of the connecting fittings 3a, 3b and are positioned on one member 1, intersecting with it.

The invention provides a BIM-based decoration facing brick arrangement method and system, and relates to the field of building information models.The BIM-based decoration facing brick arrangement method comprises the steps that Room entity and nested component information is extracted based on Revit API, and a constructable area mask is generated; establishing a process rule base containing parameters such as brick joint width, slope continuity, minimum processing size and slenderness ratio; generating a standard brick grid according to the boundary constraint and the laying direction, and performing adaptive segmentation on the non-standard region by using a topology preserving cutting algorithm to obtain non-standard bricks meeting the minimum area, the minimum width and the topology connectivity; and a multi-target scoring function is further constructed, beam search and Pareto leading edge optimization are performed on different arrangement schemes, and an optimal laying scheme is automatically selected. Through cooperation of four layers of algorithms including spatial semantic recognition, process rule driving, topology segmentation and multi-objective optimization, joint optimization of global constraint solution and constructability attractiveness is achieved, and the intelligent level and construction efficiency of decoration facing design in the BIM environment are remarkably improved.