Revit-based deepening design method for fabricated arc-shaped pipeline

Abstract

The embodiment of the application discloses a Revit-based prefabricated arc-shaped pipeline deepening design method, which comprises the following steps: in Revit, based on a design drawing, the curve of the arc in the arc-shaped pipeline system is taken straight as a plurality of straight lines, pipeline synthesis optimization is carried out, and an optimized arc-shaped pipeline system is obtained; based on a preset size threshold and a preset weight threshold, the arc-shaped pipeline corresponding to the basic arc-shaped pipeline model is segmented, and a unit arc-shaped pipeline module is obtained; based on the contour parameters of the unit arc-shaped pipeline module, Revit family and built-in volume functions are used to perform three-dimensional modeling on the unit arc-shaped pipeline module; and a support hanger for transporting the unit arc-shaped pipeline module is designed, the support hanger and the corresponding unit arc-shaped pipeline module are bound as a composite module; based on the number of the composite module, an overall construction drawing is generated, and prefabricated installation is completed according to the overall construction drawing. Thus, the integrated deepening design of the precise design, accurate machining and fine installation of the arc-shaped pipeline system is realized.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to a Revit-based method for detailed design of prefabricated curved pipes. Background Technology

[0002] In the practice of conventional prefabricated curved pipeline engineering projects, the design and construction of curved pipelines often face many challenges, which in turn restricts the promotion and application of prefabricated curved pipelines.

[0003] The technical problem existing in the prior art is: (1) The processing accuracy of curved pipes is difficult to guarantee. Due to the lack of accurate three-dimensional spatial positioning data, the pipe sections fabricated on site often deviate from the actual outline of the building structure, resulting in large errors during installation and making it impossible to achieve effective connection between design and construction; (2) The installation and connection of curved pipes is difficult and the amount of on-site correction is large. The interface matching between the prefabricated curved pipe sections is poor. During on-site installation, problems such as bolt hole deviation and flange non-parallelism often occur, requiring a lot of on-site correction work, which seriously affects the construction progress and quality; (3) Conventional Revit prefabricated curved pipe design methods cannot meet the accuracy requirements of curved pipes because the software does not support curved pipe modeling. The software's standard functions are insufficient to create parametric curved pipe models that meet actual processing needs, resulting in the detailed design results being unable to directly guide factory production and on-site installation.

[0004] Therefore, how to achieve integrated and detailed design of precise design, accurate processing and fine installation of curved pipeline systems is a technical problem that still needs to be solved. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a Revit-based method for detailed design of prefabricated curved pipes. The technical problem to be solved is how to achieve integrated detailed design of precise design, accurate processing, and fine installation of curved pipe systems.

[0006] A first aspect of this invention provides a Revit-based method for detailed design of prefabricated curved pipes, comprising: S1. In Revit, the basic pipe model of the arc-shaped pipe system is created based on the design drawings. The basic pipe model is then straightened into multiple straight lines in the arc-shaped pipe model, and the pipe system is optimized to obtain the optimized arc-shaped pipe system. The arc-shaped pipe system includes the basic arc-shaped pipe model. S2. Based on preset size thresholds and preset weight thresholds, the arc pipes corresponding to the basic arc pipe model are divided to obtain unit arc pipe modules. S3. Based on the contour parameters of the unit arc-shaped pipe module, the unit arc-shaped pipe module is modeled in three dimensions using Revit families and built-in massing functions. S4. Design a support and hanger for transporting the unit arc-shaped pipe module based on the unit arc-shaped pipe module, and bind the support and hanger to the corresponding unit arc-shaped pipe module as a composite module; S5. Generate overall construction drawings based on the numbering of the composite modules, and complete the prefabricated installation according to the overall construction drawings.

[0007] Furthermore, S2 includes: S21. If the pipe size corresponding to the basic arc-shaped pipe module does not meet the preset size threshold, or the pipe weight corresponding to the basic arc-shaped pipe module does not meet the preset weight threshold, the basic arc-shaped pipe module is divided based on the midpoint of the basic arc-shaped pipe module to obtain the unit arc-shaped pipe module. S22. If the pipe size corresponding to the unit arc pipe module in S21 does not meet the preset size threshold, or the pipe weight corresponding to the unit arc pipe module does not meet the preset weight threshold, the unit arc pipe module is divided based on the midpoint of the unit arc pipe module to obtain a new unit arc pipe module, until the pipe size corresponding to all unit arc pipe modules meets the preset size threshold and the pipe weight corresponding to all unit arc pipe modules meets the preset weight threshold. S23. If the pipe size of the basic arc-shaped pipe module meets the preset size threshold and preset weight threshold, the basic arc-shaped pipe module is determined as a unit arc-shaped pipe module.

[0008] Furthermore, the method for determining the midpoint of the arc-shaped pipe module is as follows: Determining the center of a circle based on an arc-shaped pipe module; The midpoint of the arc-shaped pipe is determined based on the center of the circle and the length of the arc side.

[0009] Furthermore, the contour parameters include the inner and outer arc lengths, chord lengths, port angles, and flange hole positions of the unit arc-shaped pipe module.

[0010] Further, S4 includes: S41. Calculate the load on the supports and hangers based on the weight, transport medium, and operating conditions of one or more unit arc-shaped pipe modules. S42. Based on the calculated load, design the supports and hangers.

[0011] Furthermore, in S5, the overall construction drawings include the assembly relationship of the composite modules, the detailed list of the arc-shaped pipeline system, and the installation and positioning diagram of the supports and hangers.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention first models the arc-shaped pipe system in Revit based on the planar design drawing using a straight-to-curve approach, and then optimizes the pipeline to obtain an optimized arc-shaped pipe system. According to preset dimensions and weight thresholds, the multiple basic pipe modules in the arc-shaped pipe system are further divided into unit arc-shaped pipe modules. Then, based on the contour parameters of the unit arc-shaped pipe modules, the 3D modeling of the unit arc-shaped pipe modules is completed using Revit's built-in family modules and built-in volume functions, realizing the precise design and processing of arc-shaped pipes. Next, the support and hanger are designed according to the unit arc-shaped pipe modules and the two are bound together as composite modules. Finally, the composite modules are numbered and overall construction drawings are generated, thereby realizing the prefabricated and precise installation of arc-shaped pipes.

[0013] This invention solves the technical problem of achieving integrated and detailed design of precise design, accurate processing, and fine installation of arc-shaped pipeline systems. Attached Figure Description

[0014] The accompanying drawings, which form part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0015] The invention will be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 A flowchart illustrating a Revit-based prefabricated curved pipe detailed design method provided in this embodiment of the invention. Figure 1 ; Figure 2 A flowchart illustrating a Revit-based prefabricated curved pipe detailed design method provided in this embodiment of the invention. Figure 2 ; Figure 3 A schematic diagram illustrating the geometric parameter annotation of an arc-shaped pipe module provided in an embodiment of the present invention; Figure 4 This is a schematic diagram illustrating the parameters and attribute annotations of an arc-shaped pipe module provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of a pipe-support composite module assembly provided in an embodiment of the present invention; Figure 6 A schematic diagram illustrating the modular segmentation and numbering of an arc-shaped pipe, provided as an embodiment of the present invention; Figure 7 This is a flowchart illustrating a positioning method based on three-dimensional modeling of pipelines within a pipe, as provided in an embodiment of the present invention. Detailed Implementation

[0016] The technical methods in the embodiments of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] Those skilled in the art will understand that the terms "first," "second," etc., in the embodiments of the present invention are only used to distinguish different steps, devices, or modules, and do not represent any specific technical meaning, nor do they indicate a necessary logical order between them.

[0018] It should also be understood that in the embodiments of the present invention, "multiple" can refer to two or more, and "at least one" can refer to one, two or more.

[0019] It should also be understood that any component, data or structure mentioned in the embodiments of the present invention can generally be understood as one or more unless explicitly defined or given contrary instructions in the context.

[0020] Furthermore, the term "and / or" in this invention is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this invention generally indicates that the preceding and following related objects have an "or" relationship.

[0021] It should also be understood that the description of the various embodiments in this invention emphasizes the differences between the various embodiments, and the similarities or similarities can be referred to each other. For the sake of brevity, they will not be described in detail.

[0022] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0023] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures. Example 1

[0025] Example 1 illustrates a Revit-based method for detailed design of prefabricated curved pipes provided by this invention. Figure 1A flowchart illustrating a Revit-based prefabricated curved pipe detailed design method provided in this embodiment of the invention. Figure 1 ,like Figure 1 As shown, the method includes steps S1 to S6: S1. In Revit, perform basic pipe modeling on the arc-shaped pipe system based on the design drawings to generate a basic pipe model. Then, in the basic pipe model, straighten the arc curve into multiple straight lines and perform comprehensive pipe optimization to obtain the optimized arc-shaped pipe system.

[0026] Understandably, S1 uses multiple straight lines to fit and form an arc shape, so that pipeline integration optimization and collision adjustment can be completed in Revit.

[0027] The curved pipe system includes a basic curved pipe model.

[0028] Understandably, the basic arc-shaped pipe model can clearly define the dividing benchmark, which facilitates further refinement into transportable and installable unit arc-shaped pipe modules.

[0029] In this embodiment of the invention, when there is only one arc-shaped pipe in the arc-shaped pipe system, the arc-shaped pipe can be used as the basic arc-shaped pipe.

[0030] In this embodiment of the invention, when there are multiple non-intersecting arc-shaped pipes in the arc-shaped pipe system, each arc-shaped pipe can also be used as a basic arc-shaped pipe.

[0031] In this embodiment of the invention, when there are multiple intersecting arc-shaped pipes in an arc-shaped pipe system, the intersection point of adjacent arc-shaped pipes can be used as the initial dividing position to divide the overall arc-shaped pipe into multiple basic arc-shaped pipe segments.

[0032] Alternatively, the design drawings may use the principle of substituting straight lines for curves, employing straight pipe sections and standard elbows to approximate the piping system.

[0033] Understandably, the two-dimensional plan design drawing has determined the basic routing of the pipeline, the system division and location coordinates, etc. Based on this, pipeline integration optimization, adjustment and conflict optimization are carried out in Revit to obtain an optimized pipeline system that meets the design intent.

[0034] In this embodiment of the invention, step S1 may include converting the design drawing of the arc-shaped pipeline system into a Revit 3D model, and then performing pipeline optimization on the arc-shaped pipeline system based on the 3D model.

[0035] S2. Based on preset size thresholds and preset weight thresholds, the arc-shaped pipes corresponding to the basic arc-shaped pipe model are divided to obtain unit arc-shaped pipe modules.

[0036] It is understandable that there are significant differences between curved pipes in terms of outline dimensions, segmentation methods, and interface forms. Therefore, it is necessary to divide the basic curved pipe system into unit curved pipe modules that meet the segmentation and transportation requirements.

[0037] In this embodiment of the invention, the dimensional information corresponding to the basic arc-shaped pipe module can be obtained based on the design drawing.

[0038] In this embodiment of the invention, the design drawing may also include material information, pipe diameter information and length parameter information corresponding to the arc-shaped pipe module, and the weight information corresponding to the basic pipe module is calculated and obtained by combining the fixed weight standard of the pipe per unit length.

[0039] S3. Based on the contour parameters of the unit arc-shaped pipe module, the Revit family and built-in mass function are used to perform three-dimensional modeling of the unit arc-shaped pipe module.

[0040] Understandably, two-dimensional planar design drawings can only determine the planar location of pipelines and cannot fully reflect the actual spatial form of the pipelines. By performing three-dimensional modeling on the unit arc-shaped pipeline module, its spatial structure and dimensional parameters can be realistically restored.

[0041] In this embodiment of the invention, before step S3, the process includes modeling and measuring the arc-shaped pipe system and saving the basic data of the arc-shaped pipe.

[0042] S4. Design supports and hangers for transporting unit arc-shaped pipe modules based on unit arc-shaped pipe modules, and bind the supports and hangers to the corresponding unit arc-shaped pipe modules as composite modules.

[0043] Understandably, once the size, weight, and shape of the unit arc-shaped pipe module are determined, a suitable support can be designed accordingly to reliably support and fix the corresponding module, thus meeting transportation and hoisting requirements.

[0044] In this embodiment of the invention, the support bracket can correspond to and support multiple unit arc-shaped pipe modules with assembly-related characteristics. These unit arc-shaped pipe modules with assembly-related characteristics can belong to the same basic pipe module, or they can be located in adjacent installation areas, have continuous pipe routing, or have matching interfaces.

[0045] Preferably, the unit arc-shaped pipes corresponding to the supports and hangers can be spliced ​​in sequence on site to form a complete pipe.

[0046] S5. Generate overall construction drawings based on the composite module numbering, and complete the prefabricated installation according to the overall construction drawings.

[0047] In this embodiment of the invention, step S2 includes steps S21 to S23: S21. If the pipe size corresponding to the basic arc-shaped pipe module does not meet the preset size threshold, or the pipe weight corresponding to the basic arc-shaped pipe module does not meet the preset weight threshold, the basic arc-shaped pipe module is divided based on the midpoint of the basic arc-shaped pipe module to obtain the unit arc-shaped pipe module.

[0048] Understandably, dividing the curved pipe module at its midpoint allows for a neat and symmetrical cut, ensuring consistent interface shape and angle. This results in more uniform pipe segment shapes and lengths, facilitating the alignment of the curved pipes and improving the smoothness of on-site installation.

[0049] S22. If the pipe size corresponding to the unit arc pipe module in S21 does not meet the preset size threshold, or the pipe weight corresponding to the unit arc pipe module does not meet the preset weight threshold, the unit arc pipe module is divided based on the midpoint of the unit arc pipe module to obtain a new unit arc pipe module, until the pipe size corresponding to all unit arc pipe modules meets the preset size threshold and the pipe weight corresponding to all unit arc pipe modules meets the preset weight threshold.

[0050] S23. If the pipe size of the basic arc-shaped pipe module meets the preset size threshold and preset weight threshold, the basic arc-shaped pipe module is determined as a unit arc-shaped pipe module.

[0051] In this embodiment of the invention, the method for determining the midpoint of the arc-shaped pipe module in steps S21 and S22 can be steps S211 and S212: S211. Determining the center of a circle based on an arc-shaped pipe module; S212. Determine the midpoint of the arc-shaped pipe based on the center and the length of the arc side.

[0052] It is understandable that the arc-shaped pipe module is an arc structure. After determining the center of the circle by the arc, the arc length can be divided equally according to the correspondence between the central angle and the arc length, thereby accurately determining the midpoint of the arc-shaped pipe.

[0053] For example, after determining the corresponding center of the arc through the arc contour of the arc pipe module, the arc side length is divided into equal parts according to the corresponding proportional relationship between the arc side length and the central angle. Based on the position of the arc length after division and the center, the corresponding central angle is determined, thereby accurately locating the midpoint of the arc pipe.

[0054] In this embodiment of the invention, the contour parameters of the unit arc-shaped pipe module include inner and outer arc lengths, chord lengths, port angles, and flange hole positions.

[0055] In this embodiment of the invention, S4 includes steps S41 and S42: S41. Calculate the load on the supports and hangers based on the weight, transport medium, and operating conditions of one or more unit arc-shaped pipe modules.

[0056] It is understandable that during the transportation and on-site assembly phases, the unit arc-shaped pipe module may have its own weight and the weight of the medium. At the same time, the operating conditions determine that the supports and hangers must have corresponding structural strength and assembly adaptability. Therefore, it is necessary to comprehensively calculate the load of the supports and hangers based on the weight, the transported medium and the operating conditions, so as to design supports and hangers that meet the load-bearing requirements and are suitable for the actual use scenario, and ensure the safety and reliability of the transportation and installation process.

[0057] S42. Based on the calculated load, design the supports and hangers.

[0058] In this embodiment of the invention, in S5, the overall construction drawings include the assembly relationship of the composite modules, the detailed list of the arc-shaped pipeline system, and the installation and positioning diagram of the supports and hangers.

[0059] It is understandable that the pipes in a piping system typically include straight pipes and curved pipes. However, considering that the segmentation, modeling, and support adaptation of curved pipes are more difficult and technically specific than those of straight pipes, this embodiment focuses on describing curved pipes in detail.

[0060] It should be noted that the segmentation method, 3D modeling, and support design logic described in this invention can also be adapted to straight pipes and are not limited to the application scenarios of curved pipes. Example 2

[0061] Example 2 is a specific example of another Revit-based prefabricated curved pipe detailed design method provided by the present invention. Figure 2 A flowchart illustrating a Revit-based prefabricated curved pipe detailed design method provided in this embodiment of the invention. Figure 2 ,like Figure 2 As shown, the method includes steps S100 to S700: Step S100: Comprehensive optimization of pipeline layout.

[0062] Understandably, step S100 is the foundation of the entire detailed design. It allows for the comprehensive layout of various professional pipelines within Revit, resolving spatial collisions between pipelines and meeting space clearance requirements.

[0063] In this embodiment of the invention, in order to simplify the design and control costs, the principle of "using straight lines to approximate curves" is usually followed for curved pipelines, and straight pipe sections and standard elbows are preferred to approximate the curved pipeline path.

[0064] Step S200: Divide the modules according to the actual working conditions.

[0065] Understandably, step S100 completes the core routing planning and overall layout of the arc-shaped pipeline system, realizes the feasibility of system functions, lays the overall layout foundation and provides corresponding spatial constraints for the subsequent refined design and modular segmentation of the arc-shaped pipeline model.

[0066] After the initial route is determined, step S200 decomposes the pipeline system, which is composed of multiple pipelines connected together, into unit arc-shaped pipeline modules that are easy to prefabricate in the factory, transport on site, and hoist.

[0067] The basic arc-shaped pipe module is divided into unit arc-shaped pipe modules. The division of unit arc-shaped pipe modules takes into account three key factors: first, the physical size limitations of the lifting port and transportation channel to ensure smooth transfer of the module; second, the rated lifting weight of the tower crane or truck crane on site to reasonably control the weight of individual modules; and third, the division position of the pipe itself, which is generally the midpoint of the arc-shaped pipe module itself. This results in more uniform interface forms, fewer module types, and strong versatility.

[0068] Step S300: Perform refined modeling on the modules obtained after segmentation.

[0069] It is understandable that after forming a detailed module partitioning scheme in step S200, the creation range and boundary conditions of each partitioned module are further obtained, so that the partitioned modules can be modeled in a refined manner.

[0070] For each module divided in step S200, an independent parametric loadable family is created in Revit for each unit arc pipe module, which is the 3D model of the pipe. The family file corresponding to the 3D pipe module contains at least key parameters such as the arc length, radius, installation angle, and cutting angle of the arc pipe, so that the family can be flexibly adapted to form a high-precision pipe module family that is highly consistent with the building form.

[0071] For the curved pipe module, step S300 can realize the refined design of the curved pipe module.

[0072] For example, Figure 3 This is a schematic diagram of the geometric parameter annotation of an arc-shaped pipe module provided in an embodiment of the present invention. As shown in the figure, this step is the precise three-dimensional modeling of the arc-shaped pipe module. The core geometric parameters of the arc-shaped pipe module are clearly marked in the figure, such as the arc length of 8891 mm, the chord length of 8833 mm, and the central angle of 40° corresponding to the arc-shaped pipe module. This schematic diagram is the result of parametric modeling based strictly on the actual arc-shaped contour of the building structure.

[0073] The result of this step is a family of high-precision curved pipe modules that closely match the building's form. The pipes are modeled in 3D within the family editing environment, using spline curves or circular arc tools to accurately create 3D models according to the actual curved contours of the building structure.

[0074] Step S400: Export family file annotations, views, and schedules.

[0075] Understandably, the high-precision pipe module family formed in step S300, which closely matches the building form, ensures the accuracy and reliability of the processing drawings in this step.

[0076] This step is crucial for converting 3D digital models into industrial production instructions. In the family files of each pipe module family created in step S300, detailed 2D view configuration and dimensioning are performed on the unit arc pipe module, including creating orthogonal views and unfolded views, and fully dimensioning key machining dimensions such as inner and outer arc lengths, chord lengths, port angles, and flange hole positions. Then, the dimensioned views and parts list are exported as machining details in DWG or PDF format.

[0077] For example, Figure 4 This diagram illustrates the parameter and attribute annotation of an arc-shaped pipe module according to an embodiment of the present invention. The diagram clearly labels the core geometric parameters of the arc-shaped pipe module, such as arc length 8891 and chord length 8832, as well as pipe attribute information, such as "XF 400x250 BL+5690" and "SE 800x350 BL+5690". This visually demonstrates the results of configuring the two-dimensional view and annotating dimensions and attributes in the parametric family file. This view and schedule can be directly used as a basis for guiding automated production on CNC machine tools, achieving precise data transfer from the design model to factory processing.

[0078] Step S500: Detailed design of supporting supports and hangers.

[0079] This step involves detailed design of integrated pipe supports. To ensure the structural stability and convenient installation of modular pipelines, load calculations and selections are performed based on the pipe weight, transported medium, and operating conditions of one or more unit arc-shaped pipe modules, resulting in a customized pipe support design adapted to the arc-shaped pipelines. Logical associations are established between the supports and the corresponding unit arc-shaped pipe modules in the model, and they are physically bound together to form a "pipe-support" composite module.

[0080] For example, Figure 5The figure shows a schematic diagram of the assembly of a pipe-support composite module provided by an embodiment of the present invention. It illustrates the support structure and assembly relationship of the support for pipes and ducts of different specifications. In the "pipe-support" composite module, the support and the corresponding pipe module are logically associated and physically bound in the model to form an integrated model. This allows the support to be pre-assembled with the unit arc-shaped pipe module in the factory or simultaneously hoisted into place on site, thereby simplifying the on-site installation process and providing effective transportation support for efficient installation.

[0081] Step S600: Generate overall construction drawings.

[0082] After steps S400 and S500 are completed, this step systematically organizes and outputs the module design results in a unified manner.

[0083] For example, Figure 6 This is a schematic diagram illustrating the modular segmentation and numbering of an arc-shaped pipe, as provided in an embodiment of the present invention. Figure 6 As shown, the curved piping system is divided into modules 1 to 9. For each complete module, including the main pipe body and supporting supports, overall fabrication and pre-assembly drawings are provided. A clear module numbering system is established, such as "M-01" for module 1 and "M-02" for module 2. This numbering is unique and consistent across the model, drawings, and physical components. Based on this numbering, a project module list is generated, clearly defining the composition, dimensions, and installation location of each module.

[0084] The final result is a complete set of construction drawings with standardized organization and clear labeling, which will serve as a guide for efficient installation.

[0085] Step S700: Factory prefabrication and on-site assembly and installation.

[0086] This step is the physical implementation of the digital design results from steps S100 to S600. Based on the high-precision machining drawings exported in step S400, the factory uses CNC equipment to precisely cut, shape, and manufacture the pipes, completing the fabrication of each arc-shaped pipe module and support structure. Then, according to the overall construction drawings in step S600, rigorous pre-assembly is carried out in the factory to verify the interface matching accuracy. After passing inspection, the corresponding module number is affixed, and the corresponding unit arc-shaped pipe module is transported to the construction site using customized supports. On-site construction personnel, based on the numbered drawings from step S600, assemble and connect the modules sequentially according to their numbers, like "building blocks," achieving prefabricated installation. All components are prefabricated in a standardized factory environment; only standardized assembly and connection are required on-site, ensuring a high degree of consistency between the construction results and the design model, improving construction quality and installation efficiency.

[0087] Through steps S100 to S700, a systematic Revit-based method for detailed design of prefabricated curved pipes was constructed. This method establishes benchmarks through integrated pipeline optimization, divides modules according to transportation and hoisting conditions, and utilizes parametric family files to achieve millimeter-level precision modeling of curved pipe segments. By integrating support and hanger design with modular numbering and drawing generation, a complete digital prefabrication solution is formed. This method transforms complex spatial curved pipelines into standardized prefabricated components, providing a basis for factory processing and enabling precise and efficient on-site installation, much like assembling building blocks. It solves the industry problems of insufficient processing precision and difficult installation connections in traditional curved pipe manufacturing, improving construction quality and efficiency, and providing a reliable technical path for piping engineering in complex architectural structures. Example 3

[0088] Example 3 is a specific example of 3D modeling based on the internal pipeline of a prefabricated arc-shaped pipe provided by the present invention. Figure 7 A flowchart illustrating a positioning method based on three-dimensional modeling of pipelines within a pipe, as provided in an embodiment of the present invention, is shown below. Figure 7 As shown, the method includes steps S1000 to S6000.

[0089] S1000, based on the design drawings of the arc-shaped pipeline system, performs comprehensive pipeline optimization.

[0090] For example, the CAD plan of the curved piping system is arranged in Revit software according to the straight pipe segments. The electrical, water supply and drainage, and HVAC professionals are modeled based on standard pipe fittings, such as using four standard angle pipe fittings of 11.25°, 22.5°, 45°, and 90° to complete the modeling of the straight pipe segments. After the modeling is completed, the pipeline is comprehensively optimized and adjusted. Collision detection and avoidance are performed on the pipeline collisions. Following the basic pipeline comprehensive adjustment principles, an optimized straight pipe segment model is formed. Based on this model, the basic data such as the spacing and bends of the pipelines of each profession are determined, and the corresponding professional drawings for electrical, water supply and drainage, and HVAC are generated.

[0091] S2000: Obtain the contour parameter data corresponding to the actual curved pipe system.

[0092] The system measures and statistically analyzes architectural and structural models, and saves basic data such as arc length and chord length.

[0093] S3000: Draw the pipeline path based on the optimized pipeline.

[0094] By combining the pipeline layout rules in step S1000 with the arc contour data obtained in step S2000, the basic path of the arc pipeline system can be further determined.

[0095] First, based on the structural base map of the building structure or the curved pipe system imported into the family editor, the boundary line of the curved structure is picked out by the lofting and blending function, and the horizontal offset between the curved pipe and the corresponding structural boundary is set. According to the spacing requirements between each pipe segment and the structure, multiple pipe paths with different paths and the same curvature are drawn to determine the basic path of the curved pipe of each unit.

[0096] In Revit, families of unit curved pipes are created using a metric standard model. The 3D modeling of the curved pipes is achieved through the lofting and blending function in the family editor. The created curved pipe module families are then loaded into the overall pipeline integrated model to complete the drawing and positioning of the curved pipes.

[0097] Step 4000: Create a family of unit arc-shaped module pipes on the pipeline path based on the contour parameter data of the unit arc-shaped pipe.

[0098] Based on the horizontal positioning and pipeline path drawing of the arc-shaped pipe completed in step S4000, and combined with the basic data of the pipeline integrated model, the length of the corresponding arc-shaped pipe of each unit is determined on the determined pipeline basic path according to the actual laying requirements of each unit arc-shaped pipe, generating unit arc-shaped pipe families of different length specifications, and realizing the creation of the arc-shaped pipe module family library.

[0099] In this embodiment of the invention, the properties of the unit arc-shaped module pipe are also defined, thereby completing the creation of an editable and assignable arc-shaped pipe family type.

[0100] Understandably, due to the different central angles and spacing between structures of the project's curved pipelines, based on the basic curved pipeline modeling completed in steps S4000 and S5000, the families within the group are classified according to different central angles and spacing between different structures, and identified using naming conventions such as "Family 1 (30°, 1 meter)", "Family 1 (30°, 1.2 meters)", and "Family 2 (50°, 1 meter)" to clarify the central angle and spacing parameters between each module family and the structure, thereby ensuring the accuracy and convenience of subsequent processing and installation.

[0101] Based on the fundamental data such as the spacing and flipping angles between various professional pipelines determined in step S1000, and on the basis of the established curved pipeline module family library, each family type is subjected to flipping processing, clarifying the starting length and flipping height, and completing the modeling of the curved pipeline module families adapted to this project. Then, all family types are organized and standardized to achieve a one-to-one accurate creation of the curved pipeline module families with the actual design requirements, ensuring a complete match between the family model and the overall pipeline layout.

[0102] S5000 integrates pipeline paths with family lofting to generate accurate 3D models.

[0103] This invention performs specialized adaptation processing on the arc-shaped pipe model family in step S5000, forming a dedicated family file suitable for the target project. This completes the modeling, drawing, and processing positioning of arc-shaped pipes based on Revit, making factory prefabrication and on-site installation layout based on drawings. It effectively avoids blind processing and installation, reduces rework and dismantling in the later stages, saves manpower and resources, and has strong promotional and practical value. It can bring good benefits to project implementation and industry applications.

[0104] The curved pipe module family file completed in step S5000 is loaded into the overall electromechanical pipeline integrated model. Combined with the aforementioned contour parameter data such as arc length, central angle, and spacing, as well as the family type identifier, each pipe module is accurately positioned to distinguish the positions of pipes with different curvatures and distances from the structure, thereby realizing the positioning, optimization, and modeling of pipelines within the curved pipe based on Revit.

[0105] Step S6000: Overall optimization and positioning processing.

[0106] Through the above operations, addressing the limitation of Revit, the mainstream BIM software, in directly drawing curved pipelines, this invention achieves the drawing, comprehensive optimization, and precise positioning of pipelines within curved pipeline structures through the aforementioned steps S1000 to S6000.

[0107] This invention first creates a library of curved pipe module families. Based on previously measured structural curvature, arc length, chord length, and other basic data, it generates curved pipe families with various specifications to meet the usage requirements of different laying scenarios. In this embodiment, all types of curved pipe module families are created using templates based on structural curvature. When establishing the basic model, the pipeline path is used as the laying basis. Parametric modeling of curved pipes is achieved through Revit's family editing function. This method effectively solves the problem that Revit is difficult to directly draw curved pipelines, providing a reliable basis for both factory prefabrication and on-site layout and installation.

[0108] This invention can be applied to various electromechanical installation projects that include arc-shaped structures. Through the above technology, arc-shaped pipes can be prefabricated in the factory. After installation, construction drawings are generated based on the BIM model. The drawings are compared with the actual curvature of the structure on site. The layout and scanning integrated equipment is used to quickly extract the layout points such as the control lines of the arc-shaped pipeline, the arc-shaped steel beams and the axis for on-site layout. This can effectively ensure the layout accuracy, improve the layout efficiency, shorten the construction cycle, reduce labor and material costs, and improve the overall efficiency of drawing production and on-site construction.

[0109] The basic principles of the present invention have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in the present invention are merely examples and not limitations, and should not be considered as essential features of each embodiment of the present invention. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the present invention to the necessity of employing the aforementioned specific details.

[0110] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For system embodiments, since they largely correspond to method embodiments, the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0111] The description of the disclosed aspects is provided to enable any person skilled in the art to make or use the invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the invention. Therefore, the invention is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0112] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the invention to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A Revit-based method for detailed design of prefabricated curved pipes, characterized in that, include: S1. In Revit, the basic pipe model of the arc-shaped pipe system is created based on the design drawings. The basic pipe model is then straightened into multiple straight lines in the arc-shaped pipe model, and the pipe system is optimized to obtain the optimized arc-shaped pipe system. The arc-shaped pipe system includes the basic arc-shaped pipe model. S2. Based on preset size thresholds and preset weight thresholds, the arc pipes corresponding to the basic arc pipe model are divided to obtain unit arc pipe modules. S3. Based on the contour parameters of the unit arc-shaped pipe module, the unit arc-shaped pipe module is modeled in three dimensions using Revit families and built-in massing functions. S4. Design a support and hanger for transporting the unit arc-shaped pipe module based on the unit arc-shaped pipe module, and bind the support and hanger to the corresponding unit arc-shaped pipe module as a composite module; S5. Generate overall construction drawings based on the numbering of the composite modules, and complete the prefabricated installation according to the overall construction drawings.

2. The method according to claim 1, characterized in that, S2 includes: S21. If the pipe size corresponding to the basic arc-shaped pipe module does not meet the preset size threshold, or the pipe weight corresponding to the basic arc-shaped pipe module does not meet the preset weight threshold, the basic arc-shaped pipe module is divided based on the midpoint of the basic arc-shaped pipe module to obtain the unit arc-shaped pipe module. S22. If the pipe size corresponding to the unit arc pipe module in S21 does not meet the preset size threshold, or the pipe weight corresponding to the unit arc pipe module does not meet the preset weight threshold, the unit arc pipe module is divided based on the midpoint of the unit arc pipe module to obtain a new unit arc pipe module, until the pipe size corresponding to all unit arc pipe modules meets the preset size threshold and the pipe weight corresponding to all unit arc pipe modules meets the preset weight threshold. S23. If the pipe size of the basic arc-shaped pipe module meets the preset size threshold and preset weight threshold, the basic arc-shaped pipe module is determined as a unit arc-shaped pipe module.

3. The method according to claim 2, characterized in that, The method for determining the midpoint of the arc-shaped pipe module is as follows: Determining the center of a circle based on an arc-shaped pipe module; The midpoint of the arc-shaped pipe is determined based on the center of the circle and the length of the arc side.

4. The method according to claim 1, characterized in that, The profile parameters include the inner and outer arc lengths, chord lengths, port angles, and flange hole positions of the unit arc-shaped pipe module.

5. The method according to claim 1, characterized in that, S4 includes: S41. Calculate the load on the supports and hangers based on the weight, transport medium, and operating conditions of one or more unit arc-shaped pipe modules. S42. Based on the calculated load, design the supports and hangers.

6. The method according to claim 1, characterized in that, In S5, the overall construction drawings include the assembly relationship of the composite modules, the detailed list of the arc-shaped pipeline system, and the installation and positioning diagram of the supports and hangers.

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