Intelligent holing method and system based on BIM

Abstract

The invention relates to the technical field of building information models, and discloses an intelligent holing method and system based on BIM, and the method comprises the steps: presetting a dynamic external expansion value and a sectioning depth of each through-wall part, carrying out the calculation according to the position and size parameters of a wall or a floor, and related pipelines, and carrying out the calculation of a holing position in a BIM model, obtaining a size parameter of each through-wall part in the through-wall part combination, obtaining a hole family in the BIM model, setting the size of the hole family to be greater than the size of the through-wall part and a dynamic expansion value, shearing a wall body or a floor slab based on the hole family, forming a reserved hole in the wall body or the floor slab, generating a section cutting plane according to a preset section cutting depth and the reserved hole after shearing, and selecting and combining the reserved holes to obtain a final reserved hole position, and labeling the final reserved hole position in the BIM model. Intelligent, automatic and prefabricated building hole design is achieved, repeated chiseling and changing in the construction stage are fundamentally avoided, the construction quality and efficiency are improved, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building information modeling, and in particular to an intelligent opening method and system based on BIM. BACKGROUND

[0002] In building engineering, mechanical and electrical pipelines need to pass through walls, floors and other building components, so opening operation must be carried out. The traditional method mainly relies on two-dimensional drawings and on-site judgment of construction personnel, and has many disadvantages, such as poor precision, easy to make mistakes: two-dimensional drawing information is not intuitive, and there are "errors, omissions, collisions and defects" between different professional drawings, which leads to inaccurate opening position on site, and often needs to be drilled again, which destroys the structural integrity. Low efficiency: relying on manual statistics of the number and size of openings, the work is heavy and easy to miss. Difficult to cooperate: there is poor communication between architects, structural engineers and mechanical and electrical designers, and design changes cannot be timely synchronized to all relevant parties. Difficult to prefabricate: due to inaccurate opening information, it is difficult to effectively guide factory prefabrication production, which limits the development of building industrialization.

[0003] Although BIM technology can perform three-dimensional collision detection and find conflicts, most of the current solutions are still in the semi-automated stage of "detection-manual adjustment-detection", and lack an end-to-end intelligent process from conflict identification to scheme generation and then to result delivery. The conventional manual opening method based on BIM technology is time-consuming and inefficient, and manual operation is prone to errors, which leads to opening errors or failure to meet requirements, so there is an urgent need for an intelligent opening method based on BIM. SUMMARY

[0004] The present application aims to overcome one or more of the above-mentioned problems in the prior art, and provides an intelligent opening method and system based on BIM.

[0005] To achieve the above-mentioned purpose, the present application provides an intelligent opening method based on BIM, comprising: presetting a dynamic external expansion value and a cutting depth for each wall-penetrating part; calculating the opening position according to the wall or floor position, size parameters and related pipelines; in the BIM model, obtaining the size parameters of each wall-penetrating part in the wall-penetrating part combination; obtaining the opening family in the BIM model, and setting the opening family size to be greater than the wall-penetrating part size and the dynamic external expansion value; based on the opening family, cutting the wall or floor to form a reserved opening in the wall or floor; generating a cutting surface according to the preset cutting depth and the reserved opening after cutting; selecting and merging the reserved openings to obtain the final reserved opening position and marking it in the BIM model.

[0006] According to an aspect of the present application, the dynamic overbreak value is determined based on the component type, historical construction error data and structure deformation prediction data; The reference overbreak value is automatically matched based on the component type; The overbreak is probabilistically determined based on the historical construction error data and the historical error distribution; The pre-deformation compensation is performed on the hole edge based on the structure deformation simulation result according to the structure deformation prediction data.

[0007] According to an aspect of the present application, the calculation of the hole position includes: The intersection position point of the pipeline and the wall is calculated based on the position and size parameters of the wall or floor and the related pipeline data; The geometric figure of the intersection position of the pipeline and the wall or floor is calculated based on the intersection position point; The invalid intersection position in the geometric figure is obtained and deleted; The center point of the intersection part of the pipeline and the wall or floor is obtained based on the size of the pipeline, and the hole position is at the center point.

[0008] According to an aspect of the present application, the size parameters of each through-wall part in the through-wall part combination are obtained, including: The position and size parameters of the wall or floor are obtained; The size and type of each through-wall part in the wall or floor are obtained; The size and type of the through-wall part are determined, if the through-wall part is circular, the diameter is obtained, if the through-wall part is rectangular, the height and width are obtained.

[0009] According to an aspect of the present application, the hole opening family size is set to be greater than the size of the through-wall part and the dynamic overbreak value, and the formula is, ; ; ; ; Wherein, Dmin represents the minimum size of the hole opening family; Dp represents the size of the through-wall part; Dover represents the dynamic overbreak value; D1 represents the value based on the component type; D2 represents the value based on the historical construction error data; D3 represents the value based on the structure deformation prediction data; represents the average value of historical construction error data; represents the confidence level coefficient; represents the standard deviation of historical construction error data; represents the linear expansion coefficient of the pipeline; represents the length of the pipeline on both sides of the wall; represents the maximum expected temperature difference; represents the load deformation compensation value; represents the creep compensation value.

[0010] According to one aspect of the present application, the method for opening a reserved hole in a wall or a floor comprises: obtaining the elevation, size and position of the wall or floor in which the hole needs to be generated; obtaining the center point of the intersection part of the pipeline with the wall or floor; judging whether the preset hole is parallel to the wall; if so, directly placing the preset hole; if not, obtaining the normal line of the wall, judging the included angle between the normal line and the north direction, and rotating the preset hole to be parallel to the wall according to the included angle between the wall and the north direction; inputting the hole position and elevation into the midpoint of the line segment to make the hole family elevation consistent with the hole opening position; adjusting the hole family position to make the center point of the hole family coincide with the center point position of the intersection part of the pipeline with the wall and floor.

[0011] According to one aspect of the present application, the method for generating a sectioning surface according to a preset sectioning depth and a reserved hole after shearing comprises: obtaining the sectioning surface type parameter, the sectioning position outward offset parameter and the sectioning depth parameter; confirming the sectioning point based on the hole position parameter; calling the sectioning surface family type, and generating the sectioning surface according to the sectioning point and the sectioning surface parameters; annotating the parameters in the sectioning surface.

[0012] According to one aspect of the present application, the method for selecting and merging the reserved holes comprises: obtaining the position and size of multiple holes generated in the wall or floor, and judging whether the position of the hole coincides with the position of the wall or floor; if there is a hole that does not coincide, excluding the hole and prompting an error warning, and performing a merging operation on the remaining holes, and if all the holes coincide, performing a merging operation; Judge whether the size of the hole is smaller than the size of the wall or the floor; Calculate the length, width and height of the reserved hole based on the distance between the two preset holes and the length, width and height of the preset hole; Based on the center points of the two preset holes, the center point of the reserved hole is obtained; Rotate the reserved hole according to the rotation angle of the preset hole until the reserved hole is parallel to the wall; Place the merged hole on the wall or floor.

[0013] According to one aspect of the present application, the marking in the BIM model comprises: Assign values to the attributes of the reserved hole, including size, type and location information; Based on the attributes of two or more merged preset holes, the specialties of the preset holes are merged according to the attributes of each reserved hole.

[0014] To achieve the above purpose, the present application provides an intelligent hole opening system based on BIM, comprising: Parameter preset module: preset the dynamic external expansion value and the cutting depth of each wall-penetrating part; Hole position generation module: calculate the hole position according to the wall or floor position, size parameter and related pipeline; Wall-penetrating part size acquisition module: in the BIM model, acquire the size parameter of each wall-penetrating part in the wall-penetrating part combination; Reserved size generation module: acquire the hole family in the BIM model, and set the hole family size to be greater than the wall-penetrating part size and the dynamic external expansion value; Reserved hole setting module: based on the hole family, cut the wall or floor to open a reserved hole in the wall or floor; Cutting surface generation module: generate a cutting surface according to the preset cutting depth and the reserved hole after cutting; Merging and marking module: select and merge the reserved holes to obtain the final reserved hole position and mark it in the BIM model.

[0015] Based on this, the present application has the advantages of full automation, from collision detection to hole opening scheme generation, greatly reducing manual intervention and errors; Based on the dynamic external expansion value and the cutting depth, the problem of low efficiency and inaccurate hole opening value in the traditional technology is solved, and the hole opening value is more reasonable based on the environmental value; Support prefabricated construction, use building components with holes (prefabricated wall panels, laminated panels) to accurately prefabricate in the factory, and improve the level of building industrialization. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 This is a flowchart illustrating a BIM-based intelligent opening method according to an exemplary embodiment; Figure 2 This is a schematic diagram of an opening according to an exemplary embodiment of a BIM-based intelligent opening method; Figure 3 This is a schematic diagram of a BIM-based intelligent opening method for merging openings, according to an exemplary embodiment. Figure 4 This is a flowchart illustrating a BIM-based intelligent opening system according to an exemplary embodiment. Detailed Implementation

[0017] The invention will now be discussed with reference to exemplary embodiments. It should be understood that the described embodiments are merely intended to enable those skilled in the art to better understand and thus implement the invention, and are not intended to imply any limitation on the scope of the invention.

[0018] As used herein, the term “comprising” and its variations are to be interpreted as open-ended terms meaning “including but not limited to”. The term “based on” is to be interpreted as “at least partially based on”, and the terms “one embodiment” and “an embodiment” are to be interpreted as “at least one embodiment”.

[0019] According to one embodiment of the present invention, Figure 1 This is a flowchart illustrating a BIM-based intelligent opening method according to an exemplary embodiment. Figure 2 This is a schematic diagram of an opening according to an exemplary embodiment of a BIM-based intelligent opening method. Figure 3 This is a schematic diagram illustrating a BIM-based intelligent opening method for merging openings according to an exemplary embodiment, such as... Figures 1-3 As shown, to achieve the above objectives, the present invention provides a flowchart of a BIM-based intelligent opening method, comprising: Preset the dynamic outward expansion value and cutting depth for each through-wall component; The location of the opening is calculated based on the position and size parameters of the wall or floor slab and related pipelines; In the BIM model, obtain the dimensional parameters of each through-wall component in the through-wall component assembly; Obtain the opening family in the BIM model, and set the opening family size to be larger than the through-wall component size and the dynamic expansion value; Based on the hole-mouth family, pre-reserved openings are made in the walls or floors; A cutting surface is generated based on the preset cutting depth and the pre-reserved opening after cutting; The reserved openings are selected and merged to obtain the final location of the reserved openings, which is then marked in the BIM model.

[0020] According to one embodiment of the present invention, the dynamic expansion value is determined based on component type, historical construction error data, and structural deformation prediction data; Automatically match baseline expansion values ​​based on component type; Based on historical construction error data, probability expansion is performed by combining historical error distribution; Based on the structural deformation prediction data and the structural deformation simulation results, pre-deformation compensation is performed on the edge of the opening.

[0021] According to one embodiment of the present invention, the calculation of the opening location includes: Calculate the intersection points of pipelines with walls based on the location and dimensions of walls or floors and relevant pipeline data; Calculate the geometry of the intersection points between pipelines and walls or floors based on the intersection points; Get and delete invalid intersections in the geometry; The center point of the intersection between the pipeline and the wall or floor slab is obtained based on the pipeline size; the center point is the location of the opening.

[0022] According to one embodiment of the present invention, the data acquisition of the wall or floor slab includes the coordinate points and elevation of the wall or floor slab, the acquisition of parameter data of the through-wall fitting, including the center point position and perpendicularity to the wall or floor slab, the acquisition of the geometry of the center point of the collision position between the wall or floor slab and the through-wall fitting, the deletion of other useless geometry, and the storage of the coordinates of the center point of the collision position and the size information of the geometry.

[0023] According to one embodiment of the present invention, obtaining the dimensional parameters of each through-wall component in the through-wall component assembly includes: Obtain the location and dimension parameters of the wall or floor slab; Obtain the dimensions and type of each through-wall component in a wall or floor slab; Determine the size and type of the through-wall part. If the through-wall part is circular, obtain its diameter; if the through-wall part is rectangular, obtain its height and width.

[0024] According to one embodiment of the present invention, the coordinate points, elevation, length, height, width and other dimensional information of the floor slab or wall are obtained; the diameter parameters, coordinate points, elevation and other information of the through-wall fittings are obtained; the length, width, thickness, coordinate points, elevation and other information of the through-wall fittings are obtained; and the dimensional information of each through-wall fitting with different requirements is stored.

[0025] According to one embodiment of the present invention, the size of the opening family is set to be larger than the size of the through-wall component and the dynamic expansion value, wherein the formula is: ; ; ; ; in, Indicates the minimum size of the hole family; Indicates the dimensions of the through-wall components; Indicates dynamic expansion value; This represents a value obtained based on the component type; This represents a value obtained based on historical construction error data; This represents a numerical value obtained based on structural deformation prediction data; This represents the average value of historical construction error data; Indicates the confidence level coefficient; This represents the standard deviation of historical construction error data; Indicates the coefficient of linear expansion of the pipeline; Indicates the length of the pipeline on both sides of the wall; Indicates the maximum expected temperature difference; This indicates the value of load deformation compensation; This represents the creep compensation value.

[0026] According to one embodiment of the present invention, the type of a single through-wall component is obtained, and the type of opening family to be used is determined, such as a circular pipe using a circular opening family.

[0027] According to one embodiment of the present invention, creating a pre-reserved opening in a wall or floor slab includes: Obtain the elevation, dimensions, and location of the wall or floor slab where the opening needs to be generated; Obtain the center point of the intersection between the pipeline and the wall / floor slab; Determine whether the pre-designed opening is parallel to the wall; If parallel, place the pre-set opening directly; If they are not parallel, obtain the normal of the wall, determine the angle between the normal and the due north direction, and rotate the preset opening to be parallel to the wall according to the angle between the wall and the due north direction. Input the location and elevation of the opening to the midpoint of the line segment so that the elevation of the opening family is consistent with the opening location; Adjust the position of the opening cluster so that the center point of the opening cluster coincides with the center point of the intersection of the pipeline with the wall and floor slab.

[0028] According to one embodiment of the present invention, the coordinates, elevation, length, width, thickness of the wall or floor slab and the center point of the intersection with the through-wall fitting are checked. The placement method of the opening is determined by whether the opening is parallel to the wall or floor slab. If it is parallel, it is selected to place it directly or to place it after assigning a rotation angle. Generally, it is placed parallel. The center point of the opening is checked and aligned with the center point of the part where the through-wall fitting intersects with the wall or floor slab.

[0029] According to one embodiment of the present invention, generating a cutting surface based on a preset cutting depth and a pre-reserved opening after shearing includes: Obtain the cutting plane type parameter, the outward offset parameter of the cutting position, and the cutting depth parameter; Based on the location parameters of the opening, the cutting point was determined; Retrieve the cutting plane family type and generate the cutting plane based on the parameters of the cutting point and the cutting plane; Label the parameters in the section plane.

[0030] According to one embodiment of the present invention, the cutting surface type is generally defaulted to a building section. Specifically, the cutting position offset parameter is generally 100mm, the cutting depth is generally 200mm, the cutting position is determined according to the center point of the opening and the opening size parameters, and whether to generate a section can be freely set. By default, no section is generated. The parameter information of the wall or slab and the parameter information of the through-wall fittings are obtained and retained in the section drawing according to the parameter information of the wall, slab, through-wall fittings, etc., mentioned in the section position and labeled.

[0031] According to one embodiment of the present invention, selecting and merging reserved openings includes: Obtain the position and dimensions of multiple openings generated in the wall or floor slab, and determine whether the position of the opening coincides with the position of the wall or floor slab; If there are non-overlapping openings, exclude the opening, issue an error warning, and merge the remaining openings. If all openings overlap, merge the openings. Determine if the sum of the opening dimensions is less than the dimensions of the wall or floor slab; The length, width, and height of the reserved opening are calculated based on the distance between the two preset openings and the length, width, and height of the preset openings; Based on the center points of the two pre-set openings, the center point of the reserved opening is obtained; Rotate the reserved opening according to the preset rotation angle until the reserved opening is parallel to the wall; Place the merged opening in the wall or floor slab.

[0032] According to one embodiment of the present invention, the length, width, coordinate points, and elevation of the wall are obtained; the size information of the opening is obtained; for a circular opening, the diameter and center point coordinates are obtained; for a rectangular opening, the length, width, and center point coordinates are obtained; the opening is then identified. If there are two circular openings, the diameter and center point position of circular opening 1 and circular opening 2 are determined. Let the diameter of circular opening 1 be R1 and the center point position be O1; let the diameter of circular opening 2 be R2 and the center point position be O2; a combined opening is generated, and the size of the combined opening is: length = R1 + R2 - The overlapping part length and width = R1 + R2 - overlapping part length are used to identify the opening. If there are two rectangular openings, the length, width, and center point position of rectangular opening 1 and rectangular opening 2 are determined. Let the length of rectangular opening 1 be L1, the width be D1, and the center point position be O1. Let the length of rectangular opening 2 be L2, the width be D2, and the center point position be O2. A combined opening is generated. The dimensions of the combined opening are: length = L1 + L2 - overlapping part length, width = D1 + D2 - overlapping part length. If there are more than two openings to be merged, they are merged in pairs.

[0033] According to an embodiment of the method provided by the present invention, the method for obtaining the model after shearing the opening after marking the reserved hole is as follows: Assign values ​​to the reserved opening attributes, including size, type, and location information; Based on the attributes of two or more pre-defined openings, the professional categories of the pre-defined openings are merged according to the attributes of each reserved opening. Specifically, the dimensions of the openings are assigned to the corresponding opening families. For example, the diameter, center point position, coordinates, and elevation are assigned to circular opening 1; and the length, width, center point position, coordinates, and elevation are assigned to rectangular opening 1. According to one embodiment of the present invention, annotation in a BIM model includes: Assign values ​​to the reserved opening attributes, including size, type, and location information; Based on the attributes of two or more pre-defined openings, the professional categories of the pre-defined openings are merged according to the attributes of each reserved opening.

[0034] According to one embodiment of the present invention, a preset outer expansion dimension for a circular opening is provided, which is expanded outward based on the diameter; a preset outer expansion dimension for a rectangular opening is provided, which is expanded outward based on the length and height; a preset outer offset dimension and cutting depth for the cutting position are provided; a preset pipe opening type is provided, generally a circular hole; and a preset duct or cable tray opening type is provided, generally a square hole. The unit of the outer expansion dimension is mm, and the basic value is generally 100 mm. Parameter settings can be performed in the three-dimensional view. Pipe type openings can also use square holes, while duct and cable tray type openings use circular holes, which can be configured according to requirements.

[0035] Furthermore, to achieve the aforementioned objectives, this invention also provides a BIM-based intelligent opening system. Figure 4 This is a flowchart illustrating a BIM-based intelligent opening system according to an exemplary embodiment, such as... Figure 4 As shown, a BIM-based intelligent opening system of the present invention includes: Parameter preset module: presets the dynamic outward expansion value and cutting depth for each through-wall component; Opening location generation module: Calculates the opening location based on the wall or floor location, size parameters, and related pipelines; Through-wall component size acquisition module: In the BIM model, acquire the size parameters of each through-wall component in the through-wall component assembly; Reserved size generation module: Obtain the opening family in the BIM model, set the opening family size to be greater than the through-wall part size and dynamic expansion value; Reserved opening setting module: Based on the opening family, cut the wall or floor slab to open the reserved opening in the wall or floor slab; Section surface generation module: Generates a section surface based on the preset section depth and the reserved opening after cutting; Merge Annotation Module: Selects and merges reserved openings to obtain the final location of the reserved openings and annotates them in the BIM model.

[0036] Those skilled in the art will recognize that the modules and algorithm steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0037] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the above-described apparatus and equipment can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0038] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or modules may be electrical, mechanical, or other forms.

[0039] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of the embodiments of the present invention, depending on actual needs.

[0040] In addition, the functional modules in the embodiments of the present invention can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module.

[0041] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the energy-saving signal transmission / reception methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0042] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0043] It should be understood that the sequence number of each step in the invention and embodiments of the present invention does not absolutely imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

Claims

1. A BIM-based intelligent opening method, characterized in that, include: Preset the dynamic outward expansion value and cutting depth for each through-wall component; The location of the opening is calculated based on the position and size parameters of the wall or floor slab and related pipelines; In the BIM model, obtain the dimensional parameters of each through-wall component in the through-wall component assembly; Obtain the opening family in the BIM model, and set the opening family size to be larger than the through-wall component size and the dynamic expansion value; Based on the hole-mouth family, pre-reserved openings are made in the walls or floors; A cutting surface is generated based on the preset cutting depth and the pre-reserved opening after cutting; The reserved openings are selected and merged to obtain the final location of the reserved openings, which is then marked in the BIM model.

2. The BIM-based intelligent opening method as described in claim 1, characterized in that, The dynamic expansion value is determined based on component type, historical construction error data, and structural deformation prediction data; Automatically match baseline expansion values ​​based on component type; Based on historical construction error data, probability expansion is performed by combining historical error distribution; Based on the structural deformation prediction data and the structural deformation simulation results, pre-deformation compensation is performed on the edge of the opening.

3. The BIM-based intelligent opening method as described in claim 2, characterized in that, The calculated location of the opening includes: Calculate the intersection points of pipelines with walls based on the location and dimensions of walls or floors and relevant pipeline data; Calculate the geometry of the intersection points between pipelines and walls or floors based on the intersection points; Get and delete invalid intersections in the geometry; The center point of the intersection between the pipeline and the wall or floor slab is obtained based on the pipeline size; the center point is the location of the opening.

4. The BIM-based intelligent opening method as described in claim 3, characterized in that, The method of obtaining the dimensional parameters of each through-wall component in the through-wall component assembly includes: Obtain the location and dimension parameters of the wall or floor slab; Obtain the dimensions and type of each through-wall component in a wall or floor slab; Determine the size and type of the through-wall part. If the through-wall part is circular, obtain its diameter; if the through-wall part is rectangular, obtain its height and width.

5. The BIM-based intelligent opening method as described in claim 4, characterized in that, The opening family size is set to be larger than the through-wall component size and the dynamic expansion value, where the formula is: ； ； ； ； in, Indicates the minimum size of the hole family; Indicates the dimensions of the through-wall components; Indicates dynamic expansion value; This represents a value obtained based on the component type; This represents a value obtained based on historical construction error data; This represents a numerical value obtained based on structural deformation prediction data; This represents the average value of historical construction error data; Indicates the confidence level coefficient; This represents the standard deviation of historical construction error data; Indicates the coefficient of linear expansion of the pipeline; Indicates the length of the pipeline on both sides of the wall; Indicates the maximum expected temperature difference; This indicates the value of load deformation compensation; This represents the creep compensation value.

6. The BIM-based intelligent opening method as described in claim 5, characterized in that, The aforementioned method of creating pre-reserved openings in walls or floors includes: Obtain the elevation, dimensions, and location of the wall or floor slab where the opening needs to be generated; Obtain the center point of the intersection between the pipeline and the wall / floor slab; Determine whether the pre-designed opening is parallel to the wall; If parallel, place the pre-set opening directly; If they are not parallel, obtain the normal of the wall, determine the angle between the normal and the due north direction, and rotate the preset opening to be parallel to the wall according to the angle between the wall and the due north direction. Input the location and elevation of the opening to the midpoint of the line segment so that the elevation of the opening family is consistent with the opening location; Adjust the position of the opening cluster so that the center point of the opening cluster coincides with the center point of the intersection of the pipeline with the wall and floor slab.

7. The BIM-based intelligent opening method as described in claim 6, characterized in that, The step of generating a cutting surface based on a preset cutting depth and a pre-reserved opening after cutting includes: Obtain the cutting plane type parameter, the outward offset parameter of the cutting position, and the cutting depth parameter; Based on the location parameters of the opening, the cutting point was determined; Retrieve the cutting plane family type and generate the cutting plane based on the parameters of the cutting point and the cutting plane; Label the parameters in the section plane.

8. The BIM-based intelligent opening method as described in claim 7, characterized in that, The selection and merging of reserved openings includes: Obtain the position and dimensions of multiple openings generated in the wall or floor slab, and determine whether the position of the opening coincides with the position of the wall or floor slab; If there are non-overlapping openings, exclude the opening, issue an error warning, and merge the remaining openings. If all openings overlap, merge the openings. Determine if the sum of the opening dimensions is less than the dimensions of the wall or floor slab; The length, width, and height of the reserved opening are calculated based on the distance between the two preset openings and the length, width, and height of the preset openings; Based on the center points of the two pre-set openings, the center point of the reserved opening is obtained; Rotate the reserved opening according to the preset rotation angle until the reserved opening is parallel to the wall; Place the merged opening in the wall or floor slab.

9. The BIM-based intelligent opening method as described in claim 8, characterized in that, The annotation in the BIM model includes: Assign values ​​to the reserved opening attributes, including size, type, and location information; Based on the attributes of two or more pre-defined openings, the professional categories of the pre-defined openings are merged according to the attributes of each reserved opening.

10. A BIM-based intelligent opening system, characterized in that, include: Parameter preset module: presets the dynamic outward expansion value and cutting depth for each through-wall component; Opening location generation module: Calculates the opening location based on the wall or floor location, size parameters, and related pipelines; Through-wall component size acquisition module: In the BIM model, acquire the size parameters of each through-wall component in the through-wall component assembly; Reserved size generation module: Obtain the opening family in the BIM model, set the opening family size to be greater than the through-wall part size and dynamic expansion value; Reserved opening setting module: Based on the opening family, cut the wall or floor slab to open the reserved opening in the wall or floor slab; Section surface generation module: Generates a section surface based on the preset section depth and the reserved opening after cutting; Merge Annotation Module: Selects and merges reserved openings to obtain the final location of the reserved openings and annotates them in the BIM model.

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