Parametric beam segment BIM model design method suitable for multi-dimensional curve deformation

Abstract

The application belongs to the technical field of bridge engineering, and discloses a parameterized beam segment BIM model design method suitable for multi-dimensional curve deformation. The application determines a beam segment sweeping path, a starting profile cross section, a terminal profile cross section and a beam segment constraint condition of a to-be-designed beam segment according to a design scheme of a beam segment BIM model; determines a constraint profile cross section of the to-be-designed beam segment according to the beam segment constraint condition; and sweeps according to the starting profile cross section, the terminal profile cross section and the constraint profile cross section along the beam segment sweeping path to obtain a beam segment BIM model of the to-be-designed beam segment. In the above manner, the model data structure of the bridge is simplified, the file size of the variable-height continuous beam BIM model is greatly reduced, the lightweight of the variable-height continuous beam system BIM model and the modeling efficiency of the BIM model are realized, and the rendering performance of the subsequent BIM model in the GIS system is improved.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering technology, and in particular to a parametric beam segment BIM model design method applicable to multidimensional curve deformation. Background Technology

[0002] To increase the span of the concrete continuous beam system, bridge engineers design these bridges as variable cross-section concrete continuous beams with low mid-span sections and high support sections. Combined with cantilever casting construction techniques, this involves composing a symmetrical T-shaped structure with the support axis as the plane of symmetry. Engineering experience shows that the height variation curve of a variable-height continuous beam is generally a parabola of the 1.5 to 2nd power. When modeling variable-height continuous beams using BIM (Building Information Modeling), to simulate the varying height of the base, the cantilever section of the T-structure needs to be further divided into multiple 3-5m long cantilever segments. This is partly to match the cantilever casting construction technique and partly to approximate the curve shape of the beam base through the linear changes in the beam segments. When the span of a bridge is large, each variable-height continuous beam structure requires many straight variable-height beam segments to assemble, resulting in low BIM modeling efficiency and large BIM file size. When loading the BIM into the GIS (Geographic Information System) system for scheme display, the large file size leads to low rendering efficiency, which can cause the scheme display to lag and affect the user experience.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The main objective of this invention is to provide a parametric beam segment BIM model design method applicable to multidimensional curve deformation, aiming to solve the technical problem of how to achieve lightweight continuous beam segment BIM models and improve the modeling efficiency of continuous beam segment BIM models.

[0005] To achieve the above objectives, this invention provides a parametric beam segment BIM model design method applicable to multidimensional curve deformation, the method comprising the following steps:

[0006] Based on the design scheme of the beam segment BIM model, determine the sweep path, starting profile section, ending profile section, and beam segment constraint conditions of the beam segment to be designed.

[0007] The constraint profile section of the beam segment to be designed is determined based on the constraint conditions of the beam segment.

[0008] Based on the starting profile section, the ending profile section, and the constraint profile section, the beam segment sweep is performed according to the beam segment sweep path to obtain the beam segment BIM model of the beam segment to be designed.

[0009] Optionally, determining the constrained profile section of the beam segment to be designed based on the beam segment constraint conditions includes:

[0010] Determine the straight-line distance constraint parameters and curve characteristic constraint parameters based on the beam segment constraint conditions;

[0011] The constraint points and constraint dimensions of the beam segment to be designed are determined based on the straight-line distance constraint parameters and the curve feature constraint parameters.

[0012] The constraint profile section of the beam segment to be designed is determined based on the constraint points and the constraint dimensions of the points.

[0013] Optionally, the step of sweeping the beam segment BIM model of the beam segment to be designed according to the starting profile section, the ending profile section, and the constraint profile section along the beam segment sweep path includes:

[0014] Obtain the original coordinate system and the starting path segment of the sweep path of the beam segment;

[0015] The starting path segments are aligned and bound according to the original coordinate system to obtain the aligned sweep path;

[0016] The beam segment BIM model of the beam segment to be designed is obtained by sweeping the starting profile section, the ending profile section and the constraint profile section according to the alignment sweep path.

[0017] Optionally, determining the sweep path, starting profile section, ending profile section, and beam segment constraints of the beam segment to be designed based on the design scheme of the beam segment BIM model includes:

[0018] Based on the design scheme of the beam segment BIM model, determine the starting section control parameters, ending section control parameters, beam segment sweep path, and beam segment constraint conditions of the beam segment to be designed.

[0019] The cross section is drawn according to the initial cross section control parameters to obtain the initial contour curve, and the initial contour cross section of the beam segment to be designed is obtained according to the initial contour curve.

[0020] The section is drawn according to the control parameters of the termination section to obtain the termination profile curve, and the termination profile section of the beam segment to be designed is obtained according to the termination profile curve.

[0021] Optionally, the step of drawing the cross section according to the initial cross section control parameters to obtain the initial contour curve includes:

[0022] The initial outer contour reference line is determined based on the outer contour control parameters and reference line drawing principles in the initial section control parameters.

[0023] Draw the initial inner contour reference line of the initial contour section according to the initial outer contour reference line and the reference line constraint conditions;

[0024] The initial contour curve is obtained by drawing a curve based on the initial outer contour reference line, the initial inner contour reference line, and the initial section control parameters.

[0025] Optionally, the step of drawing a curve based on the initial outer contour reference line, the initial inner contour reference line, and the initial section control parameters to obtain the initial contour curve includes:

[0026] The initial outer contour curve is determined by drawing a curve based on the initial outer contour reference line and the outer contour control parameters in the initial section control parameters.

[0027] Multiple contour positioning points are created based on the initial outer contour curve, the inner contour control parameters in the initial section control parameters, and the initial inner contour reference line.

[0028] Connect multiple contour positioning points to obtain the initial inner contour curve based on the connection results;

[0029] Information is labeled on the initial inner contour curve and the initial outer contour curve, and the initial contour curve is obtained based on the labeling results.

[0030] Optionally, after obtaining the beam segment BIM model of the beam segment to be designed by sweeping according to the beam segment sweep path based on the starting profile section, the ending profile section, and the constraint profile section, the method further includes:

[0031] Obtain the BIM models of the abutment section and the closure section of the bridge to be designed;

[0032] The BIM models of the beam segment, the support segment, and the closure segment are spliced ​​together.

[0033] The full-bridge BIM model of the bridge to be designed is obtained based on the splicing results.

[0034] Furthermore, to achieve the above objectives, the present invention also proposes a parametric beam segment BIM model design device applicable to multidimensional curve deformation, wherein the parametric beam segment BIM model design device applicable to multidimensional curve deformation includes:

[0035] The processing module is used to determine the sweep path, starting profile section, ending profile section, and beam segment constraints of the beam segment to be designed based on the design scheme of the beam segment BIM model.

[0036] The processing module is also used to determine the constraint profile section of the beam segment to be designed based on the constraint conditions of the beam segment;

[0037] The sweep module is used to sweep the beam segment according to the starting profile section, the ending profile section and the constraint profile section according to the beam segment sweep path to obtain the beam segment BIM model of the beam segment to be designed.

[0038] Furthermore, to achieve the above objectives, the present invention also proposes a parametric beam segment BIM model design device applicable to multidimensional curve deformation. The parametric beam segment BIM model design device applicable to multidimensional curve deformation includes: a memory, a processor, and a parametric beam segment BIM model design program applicable to multidimensional curve deformation stored in the memory and executable on the processor. The parametric beam segment BIM model design program applicable to multidimensional curve deformation is configured to implement the steps of the parametric beam segment BIM model design method applicable to multidimensional curve deformation as described above.

[0039] Furthermore, to achieve the above objectives, the present invention also proposes a storage medium storing a parametric beam segment BIM model design program applicable to multidimensional curve deformation. When the parametric beam segment BIM model design program applicable to multidimensional curve deformation is executed by a processor, it implements the steps of the parametric beam segment BIM model design method applicable to multidimensional curve deformation as described above.

[0040] This invention determines the sweep path, starting profile section, ending profile section, and constraint conditions of the beam segment to be designed based on the design scheme of the beam segment BIM model; determines the constraint profile section of the beam segment to be designed based on the constraint conditions; and obtains the beam segment BIM model by sweeping the beam segment according to the sweep path based on the starting profile section, the ending profile section, and the constraint profile section. This simplifies the model data structure of bridges, significantly reduces the file size of variable-height continuous beam BIM models, achieves lightweighting of variable-height continuous beam system BIM models and improves the modeling efficiency of BIM models, and enhances the rendering performance of subsequent BIM models in GIS systems. Furthermore, this method is applicable to various application scenarios such as variable cross-section height, width, structural thickness, and curved lines, offering high flexibility and significant market application potential. Attached Figure Description

[0041] Figure 1 This is a structural schematic diagram of a parametric beam segment BIM model design device applicable to multidimensional curve deformation in the hardware operating environment of the embodiment of the present invention.

[0042] Figure 2 This is a flowchart illustrating the first embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention.

[0043] Figure 3 This is a schematic diagram of the effect of a three-span continuous beam according to an embodiment of the parametric beam segment BIM model design method for multidimensional curve deformation of the present invention.

[0044] Figure 4 This is a schematic diagram of segment generation in an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention.

[0045] Figure 5 This is a schematic diagram of the characteristic parameters of an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention.

[0046] Figure 6 This is a functional environment diagram of an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention.

[0047] Figure 7 This is a schematic diagram of the effect of feature section sweeping before one embodiment of the parametric beam segment BIM model design method for multidimensional curve deformation applicable to the present invention.

[0048] Figure 8 This is a schematic diagram of the swept effect of a feature section in an embodiment of the parametric beam segment BIM model design method for multidimensional curve deformation according to the present invention.

[0049] Figure 9 This is a schematic diagram of a traditional variable-height box girder BIM model, representing an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation according to the present invention.

[0050] Figure 10 This is a schematic diagram of a traditional variable-width box girder BIM model, representing an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation according to the present invention.

[0051] Figure 11 This is a schematic diagram of a variable-height box girder BIM model, representing an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation according to the present invention.

[0052] Figure 12 This is a schematic diagram showing the cross-sectional features and variations of a box girder according to an embodiment of the parametric beam segment BIM model design method for multidimensional curve deformation applicable to the present invention.

[0053] Figure 13 A schematic diagram of a traditional beam segment BIM model, representing an embodiment of the parametric beam segment BIM model design method for multidimensional curve deformation applicable to the present invention.

[0054] Figure 14 This is a schematic diagram of a high-order beam segment BIM model of an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention.

[0055] Figure 15 A schematic diagram of a traditional beam segment BIM model, representing an embodiment of the parametric beam segment BIM model design method for multidimensional curve deformation applicable to the present invention.

[0056] Figure 16 This is a schematic diagram of an improved beam segment BIM model, representing an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation according to the present invention.

[0057] Figure 17 This is a schematic diagram of a variable-height and variable-width beam BIM model, representing an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation according to the present invention.

[0058] Figure 18 This is a schematic diagram of a bridge deck vertical curve beam BIM model, representing an embodiment of the parametric beam segment BIM model design method for multidimensional curve deformation applicable to this invention.

[0059] Figure 19 This is a schematic diagram of a bridge deck horizontal curve beam BIM model according to an embodiment of the parametric beam segment BIM model design method for multidimensional curve deformation applicable to the present invention.

[0060] Figure 20 This is a schematic diagram of an advanced curved deformation beam BIM model, representing an embodiment of the parametric beam segment BIM model design method for multidimensional curved deformation applicable to the present invention.

[0061] Figure 21 This is a flowchart illustrating the second embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention.

[0062] Figure 22 This is a schematic diagram of the sweep path and constraints of an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention.

[0063] Figure 23 This is a schematic diagram of the sweep path constraint feature of an embodiment of the parametric beam segment BIM model design method for multidimensional curve deformation applicable to the present invention.

[0064] Figure 24 This is a schematic diagram of path constraint model sweeping in an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention.

[0065] Figure 25 This is the flowchart of the third embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention;

[0066] Figure 26 This is a schematic diagram of a reference line for an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention.

[0067] Figure 27 This is a schematic diagram of the contour curve of an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention.

[0068] Figure 28 This is a schematic diagram of information annotation for an embodiment of the parametric beam segment BIM model design method applicable to multidimensional curve deformation of the present invention;

[0069] Figure 29 This is a structural block diagram of the first embodiment of the parametric beam segment BIM model design device applicable to multidimensional curve deformation according to the present invention.

[0070] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0071] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0072] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of a parametric beam segment BIM model design device for multidimensional curve deformation applicable to the hardware operating environment involved in the embodiments of the present invention.

[0073] like Figure 1 As shown, the parametric beam segment BIM model design device applicable to multidimensional curve deformation may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk drive. The memory 1005 may also optionally be a storage device independent of the aforementioned processor 1001.

[0074] Those skilled in the art will understand that Figure 1 The structure shown does not constitute a limitation on the design equipment for parametric beam segment BIM models applicable to multidimensional curve deformation, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0075] like Figure 1 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and a parametric beam segment BIM model design program applicable to multidimensional curve deformation.

[0076] exist Figure 1 In the parametric beam segment BIM model design device for multidimensional curve deformation shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and memory 1005 in the parametric beam segment BIM model design device for multidimensional curve deformation of the present invention can be set in the parametric beam segment BIM model design device for multidimensional curve deformation. The parametric beam segment BIM model design device for multidimensional curve deformation calls the parametric beam segment BIM model design program for multidimensional curve deformation stored in the memory 1005 through the processor 1001, and executes the parametric beam segment BIM model design method for multidimensional curve deformation provided in the embodiment of the present invention.

[0077] This invention provides a parametric beam segment BIM model design method applicable to multidimensional curve deformation, referring to... Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of a parametric beam segment BIM model design method applicable to multidimensional curve deformation according to the present invention.

[0078] In this embodiment, the parametric beam segment BIM model design method applicable to multidimensional curve deformation includes the following steps:

[0079] Step S10: Determine the sweep path, starting profile section, ending profile section, and beam segment constraints of the beam segment to be designed based on the design scheme of the beam segment BIM model.

[0080] It should be noted that the execution subject of this embodiment is a parametric beam segment BIM model design device applicable to multidimensional curve deformation. This parametric beam segment BIM model design device applicable to multidimensional curve deformation has functions such as data processing, data communication, and program execution. The parametric beam segment BIM model design device applicable to multidimensional curve deformation can be an integrated controller, a control computer, or other devices with similar functions. This embodiment does not limit these devices.

[0081] It is understandable that the parametric beam segment BIM model design method applicable to multidimensional curve deformation in this embodiment is based on the following general idea: the traditional approach of approximating a curved cantilever segment by fitting multiple straight-line variable-height beam segments is adjusted to directly approximating a curved cantilever segment by constructing a curved variable-height beam segment. A traditional straight-line variable-height beam segment consists of two sections with identical cross-sectional features at both ends and a size that is larger at one end than the other. Using the modeling capabilities of a graphics engine, a straight-line variable segment is formed through sweeping and linear interpolation of the intermediate solid. In this embodiment, a curved variable-height beam segment adds a section with identical features in the middle, with dimensions within the range of the two end sections. Using the modeling capabilities of a graphics engine, a curved variable segment is formed by sweeping the three sections at both ends and the middle section, and then interpolating the middle solid using the cross-sectional curve.

[0082] In practical implementation, the variable-height continuous beam system involved in this embodiment mainly consists of prestressed concrete beams. Structural types include T-beams, continuous beams, continuous rigid frames, main beams of continuous beam arches, main beams of continuous rigid frame arches, and main beams of low-tower cable-stayed bridges. To increase the spanning capacity of these bridges, the main beam is typically designed as a variable-section concrete continuous beam with a low mid-span section and a high support section. The height variation curve of the variable-height continuous beam is generally a parabola of the 1.5 to 2nd power. The main beam is generally a symmetrical structure composed of straight side spans, side span closure sections, multiple cantilevered T-beams, and multiple mid-span closure sections. Cantilever construction (cantilever casting or cantilever assembly) is usually adopted. The cantilever sections of the T-beams are further divided into multiple cantilever segments of 3 to 5 meters in length. The length of the cantilever segments is generally 3 to 5 meters, mostly with box girder sections. Their geometric shape consists of two end sections and one mid-span section. Using a geometric modeling engine, the height of the beam is varied by lofting and sweeping curves at the beam ends, resulting in a quadratic parabola at the highest point of the beam height variation curve. Ideally, n mid-span sections can be set in the two end sections, generating curves with a maximum order of n-1. Alternatively, curves can be set to vary the beam width, and the thicknesses of the top, bottom, and web plates. The cross-sections for cantilever segments are mostly box girder sections, requiring all sections used for layout sweeping to have the same dimensional characteristics; specific characteristic values ​​can be set differently as needed. The sections are selected using the same coordinate control points and a unified normal direction, distributed at different locations along the layout path.

[0083] It should be noted that the parametric beam segment BIM model design device applicable to multidimensional curve deformation in this embodiment is equipped with a component designer, specifically the GDMP platform graphics engine. In this embodiment, the construction of a three-span continuous beam generated by box girder sweeping is used as an example for illustration. The effect diagram of the three-span continuous beam is shown below. Figure 3 As shown.

[0084] Understandably, to facilitate understanding of the solution, it is now presented through... Figure 4To illustrate, traditional models use straight beam segments generated by linear sweeping between sections 1 and 3, requiring multiple straight beam segments to assemble into a variable-height curved beam. The innovation of this embodiment lies in adding section 2 between sections 1 and 3, generating a curved variable-height beam segment through curve sweeping. Thus, a single beam segment can form a curved beam height. This method can also be extended to variable-width beams and curved beams. The structural information model of variable-width and variable-height beams suitable for curves generated by this embodiment has a smaller file size and higher modeling efficiency. Furthermore, when generating beam segments, beam segment A is formed by sections 1 and 2, and beam segment B is formed by sections 2 and 3. The corresponding curves at the midpoint 2 must satisfy curve continuity, first-order derivative continuity, and second-order derivative continuity. At the midpoint 2, curve continuity indicates that the beam shape is continuous at that point, i.e., without abrupt changes or breaks. First-order derivative continuity indicates that the slope of the beam at the midpoint 2 is continuous, i.e., without abrupt changes in the beam's inclination angle. The continuity of the second derivative of the curve indicates that the curvature of the beam is continuous at the midpoint 2, meaning there is no abrupt change in the degree of bending. Therefore, the derivative order of 0 at midpoint 2 indicates that, in addition to the continuity of the curve itself, its first and second derivatives are also continuous at that point, meaning that the shape, slope, and curvature of the beam are continuous at that point. Such connection conditions ensure a smooth transition and continuity of force on the beam at the connection point.

[0085] In practice, the beam segment to be designed can be any of the following: a variable height and width beam, a vertical curve beam on the bridge deck, a horizontal curve beam on the bridge deck, an advanced curve deformation beam, or other beams. When generating the BIM model of the beam segment to be designed, the designer will provide a design scheme for the beam segment BIM model in advance. The design scheme includes, but is not limited to, the control parameters of the box girder section of the starting section and the control parameters of the box girder section of the ending section of the beam segment to be designed, the beam segment constraint conditions, and the beam segment sweep path. The beam segment constraint conditions include, but are not limited to, the control parameters of the straight distance constraint and the curve feature constraint between two points on the beam segment sweep path. In this embodiment, the control parameters of the box girder section include, but are not limited to, the inner contour control parameters and the outer contour control parameters of the section. The outer contour control parameters include, but are not limited to, the box girder section width, box girder section height, flange plate height, flange plate width, web plate height, web plate width, chamfer radius of flange plate and web plate, chamfer radius of bottom plate and web plate, and other control characteristic parameters of each contour component. The inner contour control parameters include, but are not limited to, the top plate thickness, web plate thickness, bottom plate thickness, intermediate box cell spacing, box cell upper and lower corner width, height, and other control characteristic parameters. Specifically, as shown below... Figure 5 As shown.

[0086] It should be noted that, based on the initial coordinate plane, a reference line for the initial section is constructed according to the control parameters of the box girder section of the initial section. The inner and outer contour curves of the initial section are drawn by combining the reference line and the control parameters of the box girder section of the initial section. The inner and outer contour curves of the initial section yield the target contour curve of the initial section. The initial contour section is obtained through the target contour curve of the initial section. The process of obtaining the final contour section is the same as that of obtaining the initial contour section.

[0087] In practical implementation, after receiving the design scheme for the beam segment to be designed, the functional environment of the outline component needs to be initialized first, such as... Figure 6 As shown, create a new project, enable the outline component function, and enter the view interface. Draw the outline of the component in this view. The system provides a reference coordinate system, and the interface normal is perpendicular to the screen. The default unit is millimeters.

[0088] Step S20: Determine the constraint profile section of the beam segment to be designed based on the constraint conditions of the beam segment.

[0089] It should be noted that on the sweep path of the beam segment, a segment of the path between the starting section and the ending section is randomly selected, and the intermediate section is determined based on the beam segment constraint conditions corresponding to this segment of the path. The intermediate section is the constraint profile section.

[0090] It is understandable that, in order to accurately obtain the constrained profile section, the step of determining the constrained profile section of the beam segment to be designed based on the beam segment constraint conditions further includes: determining the straight-line distance constraint parameters and the curve feature constraint parameters based on the beam segment constraint conditions; determining the constraint points and point constraint dimensions of the beam segment to be designed based on the straight-line distance constraint parameters and the curve feature constraint parameters; and determining the constrained profile section of the beam segment to be designed based on the constraint points and the point constraint dimensions.

[0091] It should be noted that the straight-line distance constraint between two points in the beam segment constraint conditions is the straight-line distance constraint parameter, and the control parameter of the curve characteristic constraint between two points is the curve characteristic constraint parameter. A segment is randomly selected between the starting and ending sections, and the corresponding straight-line distance constraint parameter and curve characteristic constraint parameter are obtained. Using these parameters, the location and target size of the intermediate section are determined. The location of the intermediate section is the constraint point, and the target size is the point constraint dimension. The constrained profile section of the beam segment to be designed can be obtained using the constraint point and the point constraint dimension.

[0092] Step S30: Based on the starting profile section, the ending profile section, and the constraint profile section, sweep along the beam segment sweep path to obtain the beam segment BIM model of the beam segment to be designed.

[0093] It should be noted that the sweeping is performed along the beam segment sweeping path from the initial profile section until the sweeping stops at the termination profile section. When passing the constraint profile section, the section should coincide with the constraint profile section. At the same time, the edge curve of the beam segment obtained after sweeping along the beam segment sweeping path should simultaneously satisfy curve continuity, curve first derivative continuity, and curve second derivative continuity at the points on the constraint profile section, ensuring the smooth transition and stress continuity of the beam at the connection point.

[0094] It should be understood that at the constrained profile section, curve continuity indicates that the beam's shape is continuous at that point, meaning there are no abrupt changes or breaks. Curve first derivative continuity indicates that the beam's slope is continuous at the target point, meaning there are no abrupt changes in the beam's inclination angle. Curve second derivative continuity indicates that the beam's curvature is continuous at the target point, meaning there are no abrupt changes in the beam's bending degree. Therefore, a derivative order of 0 at the constrained profile section indicates that, in addition to the curve itself being continuous, its first and second derivatives are also continuous at that point; that is, the beam's shape, slope, and curvature are continuous at that point. Such connection conditions ensure a smooth transition and continuity of force at the connection point of the beam.

[0095] Understandably, by utilizing the multi-section sweep function on a parametric beam segment BIM model design device that applies multi-dimensional curve deformation, and by establishing box girder profile components with different cross-sectional dimensions, a set of box girder BIM models based on higher-order beam segments can be generated through combinations along the sweep path. This yields the box girder BIM model of the continuous beam to be designed. As the number of multi-sections increases, the model can achieve greater refinement; conversely, the number of multi-sections can be appropriately reduced to allow for a lightweight model display. A schematic diagram of the effect before sweeping the feature sections is shown below. Figure 11 As shown in the diagram, the effect after sweeping the feature section is as follows: Figure 12 As shown.

[0096] In practical implementation, the beam segment dimensions can be modified when updating the feature parameters of the beam segment. Using the component parameter function, the names of the feature parameters and the corresponding values ​​of the feature control parameters for the inner and outer contour components of each profile component can be viewed. By changing the values, parametrically driven updates of the box girder component's shape can be achieved. By changing the straight-line distance and constraint radius of the path, parametrically driven updates of the generation path for curved box girder components can be achieved. Through multi-section sweeping, a high-order refined model of the beam segment can be generated, where the feature parameters change along the curved path.

[0097] It should be noted that the lightweight bridge design model generated through this embodiment uses a high-order beam segment element with multi-section sweeping as an example. By loading the components into a new project and repeatedly calling the high-order beam segment model, cantilever curve segments of the beam components can be generated.

[0098] It should be understood that, in order to quickly complete the construction of the full bridge BIM model, after obtaining the beam segment BIM model of the beam segment to be designed by sweeping according to the beam segment sweep path based on the starting profile section, the ending profile section, and the constraint profile section, the method further includes: obtaining the support segment BIM model and the closure segment BIM model of the bridge to be designed; splicing the beam segment BIM model, the support segment BIM model, and the closure segment BIM model; and obtaining the full bridge BIM model of the bridge to be designed based on the splicing result.

[0099] It is understandable that the bridge to be designed refers to the entire bridge corresponding to the beam segment to be designed. In the BIM model construction of the beam segment to be designed, it is only necessary to create two support segments and one closure segment BIM model and splice them with the beam segment BIM model of the beam segment to be designed.

[0100] In practical implementation, the support segment and closure segment are also generated through path + box girder section sweeping. Compared to traditional modeling methods, which require creating multiple parametric components and then reassembling them into a full-bridge BIM model, the method in this embodiment can quickly generate a full-bridge schematic diagram, significantly improving modeling efficiency. Traditional variable-height box girder BIM models and traditional variable-width box girder BIM models are shown below. Figure 9 and Figure 10 As shown, the BIM model of the variable-height box girder generated in this embodiment is as follows: Figure 11 As shown in the diagram, the characteristics and variations of the box girder section are illustrated below. Figure 12 As shown. A traditional beam segment BIM model is as follows: Figure 13 As shown, the BIM model of the high-order beam segment in this embodiment is as follows: Figure 14 As shown, the BIM model of a traditional cantilever beam segment is as follows: Figure 15 As shown, the BIM model of the cantilever beam segment in this embodiment is as follows: Figure 16 As shown, the BIM model diagrams obtained using the method of this embodiment are respectively shown in scenarios of variable height and width beams, vertical curved beams on the bridge deck, horizontal curved beams on the scene bridge deck, and advanced curved deformable beams. Figure 17 , 18 As shown in Figures 19 and 20.

[0101] It should be noted that the parametric beam segment BIM model design method applicable to multi-dimensional curve deformation proposed in this embodiment adjusts the traditional scheme of approximating curved cantilever segments by fitting multiple beam segments to straight-line variable-height beam segments. Instead, it constructs curved variable-height beam segments to directly approximate curved cantilever segments, achieving lightweighting of the continuous beam system BIM model and further improving the rendering performance of the BIM model in the GIS system. Furthermore, the beam segment BIM model of this embodiment is applicable to various application scenarios such as variable cross-section height, width, structural thickness, and curved lines, offering a high degree of freedom and significant market application potential.

[0102] This embodiment determines the sweep path, starting profile section, ending profile section, and constraint conditions of the beam segment to be designed based on the design scheme of the beam segment BIM model; determines the constraint profile section of the beam segment to be designed based on the constraint conditions; and obtains the beam segment BIM model by sweeping the beam segment according to the sweep path based on the starting profile section, the ending profile section, and the constraint profile section. This simplifies the model data structure of the bridge, significantly reduces the file size of the variable height continuous beam BIM model, achieves lightweighting of the variable height continuous beam system BIM model and improves the modeling efficiency of the BIM model, and enhances the rendering performance of the BIM model in the GIS system. At the same time, the above method can be applied to various application scenarios such as variable height, variable width, variable thickness, and curved lines, and has a high degree of freedom and a large market application space.

[0103] refer to Figure 21 , Figure 21 This is a flowchart illustrating the second embodiment of a parametric beam segment BIM model design method applicable to multidimensional curve deformation according to the present invention.

[0104] Based on the first embodiment described above, the parametric beam segment BIM model design method for multidimensional curve deformation applicable to this embodiment includes the following in step S30:

[0105] Step S31: Obtain the original coordinate system and the starting path segment of the sweep path of the beam segment.

[0106] It should be noted that the original coordinate system refers to the reference coordinate system provided by the system, and the normal of the cross section is perpendicular to the screen.

[0107] Step S32: Align and bind the starting path segments according to the original coordinate system to obtain the aligned sweep path.

[0108] Step S33: Sweep the beam segment BIM model according to the alignment sweep path based on the starting profile section, the ending profile section and the constraint profile section to obtain the beam segment BIM model of the beam segment to be designed.

[0109] It should be noted that when creating the BIM model, the initial profile section is loaded, and the beam segment sweep path is established based on the design scheme. In the foundation elevation view, straight lines and circular curves are drawn. The initial path segment of the beam segment sweep path must be aligned and bound to the original coordinate system. The beam segment sweep path after the initial path segment is aligned and bound is the aligned sweep path. Figure 22 As shown, by changing the control parameters of the straight-line distance constraint and the curve feature constraint between two points, a beam segment BIM model of the beam segment to be designed can be quickly generated. In this embodiment, the constraint features of the sweep path are as follows: Figure 23 As shown in the diagram, the path constraint model sweep is illustrated below. Figure 24 As shown.

[0110] This embodiment obtains the original coordinate system and the starting path segment of the beam segment sweep path; aligns and binds the starting path segment according to the original coordinate system to obtain an aligned sweep path; and sweeps the beam segment according to the aligned sweep path based on the starting profile section, the ending profile section, and the constraint profile section to obtain the beam segment BIM model of the beam segment to be designed. This ensures the efficiency of beam segment BIM model generation and achieves model lightweighting.

[0111] refer to Figure 25 , Figure 25 This is a flowchart illustrating the third embodiment of a parametric beam segment BIM model design method applicable to multidimensional curve deformation according to the present invention.

[0112] Based on the first embodiment described above, the parametric beam segment BIM model design method applicable to multidimensional curve deformation in this embodiment includes the following in step S10:

[0113] Step S11: Determine the starting section control parameters, ending section control parameters, sweep path, and constraint conditions of the beam segment to be designed based on the design scheme of the beam segment BIM model.

[0114] It should be noted that the control parameters of the box girder section at the starting section are the same as the control parameters of the starting section, and the control parameters of the box girder section at the ending section are the same as the control parameters of the ending section. In this embodiment, the control parameters of the box girder section include, but are not limited to, the control parameters of the inner contour and the control parameters of the outer contour. The control parameters of the outer contour include, but are not limited to, the control characteristic parameters of the box girder section width, box girder section height, flange plate height, flange plate width, web plate height, web plate width, chamfer radius of flange plate and web plate, and chamfer radius of bottom plate and web plate for each contour member. The control parameters of the inner contour include, but are not limited to, the control characteristic parameters of the top plate thickness, web plate thickness, bottom plate thickness, intermediate box cell spacing, box cell upper and lower corner width, and height.

[0115] Step S12: Draw the cross section according to the initial cross section control parameters to obtain the initial contour curve, and obtain the initial contour cross section of the beam segment to be designed according to the initial contour curve.

[0116] It should be noted that the initial contour curve includes the inner contour curve and the outer contour curve of the initial section. The inner contour curve and the outer contour curve of the initial section constitute the initial contour section of the beam segment to be designed. In order to accurately draw the initial contour curve, the step of drawing the section according to the initial section control parameters to obtain the initial contour curve further includes: determining the initial outer contour reference line according to the outer contour control parameters and the reference line drawing principle in the initial section control parameters; drawing the initial inner contour reference line of the initial contour section according to the initial outer contour reference line and the reference line constraint conditions; and drawing the curve according to the initial outer contour reference line, the initial inner contour reference line and the initial section control parameters to obtain the initial contour curve.

[0117] It is understood that the reference line drawing principle in this embodiment refers to the horizontal reference line being the front and rear centers, and the vertical reference line being the center of the top surface of the box girder section parallel to the axis of the beam segment. This can also be set according to requirements. Based on the outer contour control parameters in the initial section control parameters and the reference line drawing principle, corresponding initial outer contour reference lines are established. For box girder width, reference lines are parallel to the left and right centers; for box girder height, reference lines are parallel to the front and rear centers. Based on determining the initial outer contour reference lines, initial inner contour reference lines are further drawn. In this embodiment, the initial outer contour reference lines include, but are not limited to, box girder width reference lines and box girder height reference lines.

[0118] In this specific implementation, the reference line constraint condition refers to the alignment constraint binding between reference lines. Based on the inner contour control parameters in the initial section control parameters, the initial inner contour reference line is drawn based on the initial outer contour reference line. The initial inner contour reference line and the initial outer contour reference line must satisfy the reference line constraint condition. A schematic diagram of the reference line is shown below. Figure 26 As shown.

[0119] It should be noted that, based on the created initial outer contour reference line and initial inner contour reference line, and combined with the initial section control parameters of each contour component, the initial contour curve can be drawn. The initial contour curve includes the initial outer contour curve and the initial inner contour curve.

[0120] Understandably, to ensure the efficiency and accuracy of curve drawing, the step of drawing the curve based on the initial outer contour reference line, the initial inner contour reference line, and the initial cross-section control parameters to obtain the initial contour curve further includes: drawing the curve based on the initial outer contour reference line and the outer contour control parameters in the initial cross-section control parameters to determine the initial outer contour curve; creating multiple contour positioning points based on the initial outer contour curve, the inner contour control parameters in the initial cross-section control parameters, and the initial inner contour reference line; connecting the multiple contour positioning points to obtain the initial inner contour curve based on the connection results; and annotating the initial inner contour curve and the initial outer contour curve with information to obtain the initial contour curve based on the annotation results.

[0121] In the specific implementation, based on the initial outer contour reference line and combined with the outer contour control parameters in the initial section control parameters, the outer contour of the box girder section width, box girder section height, flange plate height, flange plate width, web plate height, web plate width, flange plate and web plate chamfer radius, and bottom plate and web plate chamfer radius are drawn, thereby obtaining the initial outer contour curve.

[0122] It should be noted that the initial inner contour curve is drawn based on the already drawn initial outer contour curve and initial inner contour reference line. Multiple contour positioning points are created using the initial inner contour control parameters, and these points are then connected sequentially to obtain the contour positioning line. Finally, the initial inner contour curve is generated based on this contour positioning line. Feature annotations and parameter controls are added to the initial inner and outer contour curves. These annotated initial inner and outer contour curves are then used as the initial contour curves on the continuous beam to be designed. Figure 27 As shown, the alignment constraint is bound between the starting contour curve and the starting inner and outer contour reference lines.

[0123] Understandably, the specific process of adding feature annotations and parameter controls to the initial inner and outer contour curves is as follows: First, add annotations and parameter controls to the initial outer contour curve. Then, by picking the distance between the original coordinate plane and the newly created contour reference line, add control parameters between the box girder width reference plane and the box girder height reference plane, respectively. The determination of the annotations and parameter controls for the initial inner contour curve is achieved by establishing a straight-line distance between the initial outer contour reference line and the initial inner contour reference line, and adding control parameters. The annotated contour curve is shown below. Figure 28 As shown.

[0124] Step S13: Draw the section according to the termination section control parameters to obtain the termination profile curve, and obtain the termination profile section of the beam segment to be designed according to the termination profile curve.

[0125] It should be noted that the termination profile curve includes the inner profile curve and the outer profile curve of the termination section. The inner profile curve and the outer profile curve of the termination section constitute the termination profile section of the beam segment to be designed. The process of drawing the termination profile curve is the same as the process of drawing the starting profile curve.

[0126] This embodiment determines the starting section control parameters, ending section control parameters, sweep path, and constraint conditions of the beam segment to be designed based on the design scheme of the beam segment BIM model. The starting section control parameters are used to draw the section, resulting in a starting contour curve. The starting contour section of the beam segment to be designed is then obtained from the starting contour curve. Similarly, the ending section control parameters are used to draw the section, resulting in a ending contour curve. This ensures both efficiency and accuracy in curve drawing.

[0127] Furthermore, this embodiment of the invention also proposes a storage medium storing a parametric beam segment BIM model design program applicable to multidimensional curve deformation. When the parametric beam segment BIM model design program applicable to multidimensional curve deformation is executed by a processor, it implements the steps of the parametric beam segment BIM model design method applicable to multidimensional curve deformation as described above.

[0128] Reference Figure 29 , Figure 29 This is a structural block diagram of the first embodiment of the parametric beam segment BIM model design device applicable to multidimensional curve deformation according to the present invention.

[0129] like Figure 29 As shown, the parametric beam segment BIM model design device applicable to multidimensional curve deformation proposed in this embodiment of the invention includes:

[0130] The processing module 10 is used to determine the sweep path, starting profile section, ending profile section, and beam segment constraint conditions of the beam segment to be designed based on the design scheme of the beam segment BIM model.

[0131] The processing module 10 is also used to determine the constraint profile section of the beam segment to be designed based on the beam segment constraint conditions.

[0132] The sweep module 20 is used to sweep the beam segment according to the starting profile section, the ending profile section and the constraint profile section according to the beam segment sweep path to obtain the beam segment BIM model of the beam segment to be designed.

[0133] This embodiment determines the sweep path, starting profile section, ending profile section, and constraint conditions of the beam segment to be designed based on the design scheme of the beam segment BIM model; determines the constraint profile section of the beam segment to be designed based on the constraint conditions; and obtains the beam segment BIM model by sweeping the beam segment according to the sweep path based on the starting profile section, the ending profile section, and the constraint profile section. This simplifies the model data structure of the bridge, significantly reduces the file size of the variable height continuous beam BIM model, achieves lightweighting of the variable height continuous beam system BIM model and improves the modeling efficiency of the BIM model, and enhances the rendering performance of the BIM model in the GIS system. At the same time, the above method can be applied to various application scenarios such as variable height, variable width, variable thickness, and curved lines, and has a high degree of freedom and a large market application space.

[0134] In one embodiment, the processing module 10 is further configured to determine the straight-line distance constraint parameters and the curve feature constraint parameters based on the beam segment constraint conditions;

[0135] The constraint points and constraint dimensions of the beam segment to be designed are determined based on the straight-line distance constraint parameters and the curve feature constraint parameters.

[0136] The constraint profile section of the beam segment to be designed is determined based on the constraint points and the constraint dimensions of the points.

[0137] In one embodiment, the sweeping module 20 is further configured to obtain the original coordinate system and the starting path segment of the sweeping path of the beam segment;

[0138] The starting path segments are aligned and bound according to the original coordinate system to obtain the aligned sweep path;

[0139] The beam segment BIM model of the beam segment to be designed is obtained by sweeping the starting profile section, the ending profile section and the constraint profile section according to the alignment sweep path.

[0140] In one embodiment, the processing module 10 is further configured to determine the starting section control parameters, ending section control parameters, beam segment sweep path, and beam segment constraint conditions of the beam segment to be designed based on the design scheme of the beam segment BIM model.

[0141] The cross section is drawn according to the initial cross section control parameters to obtain the initial contour curve, and the initial contour cross section of the beam segment to be designed is obtained according to the initial contour curve.

[0142] The section is drawn according to the control parameters of the termination section to obtain the termination profile curve, and the termination profile section of the beam segment to be designed is obtained according to the termination profile curve.

[0143] In one embodiment, the processing module 10 is further configured to determine the initial outer contour reference line based on the outer contour control parameters and the reference line drawing principle in the initial section control parameters;

[0144] Draw the initial inner contour reference line of the initial contour section according to the initial outer contour reference line and the reference line constraint conditions;

[0145] The initial contour curve is obtained by drawing a curve based on the initial outer contour reference line, the initial inner contour reference line, and the initial section control parameters.

[0146] In one embodiment, the processing module 10 is further configured to draw a curve based on the initial outer contour reference line and the outer contour control parameters in the initial section control parameters, and determine the initial outer contour curve;

[0147] Multiple contour positioning points are created based on the initial outer contour curve, the inner contour control parameters in the initial section control parameters, and the initial inner contour reference line.

[0148] Connect multiple contour positioning points to obtain the initial inner contour curve based on the connection results;

[0149] Information is labeled on the initial inner contour curve and the initial outer contour curve, and the initial contour curve is obtained based on the labeling results.

[0150] In one embodiment, the processing module 10 is further configured to acquire the BIM model of the bearing section and the BIM model of the closure section of the bridge to be designed.

[0151] The BIM models of the beam segment, the support segment, and the closure segment are spliced ​​together.

[0152] The full-bridge BIM model of the bridge to be designed is obtained based on the splicing results.

[0153] It should be understood that the above are merely illustrative examples and do not constitute any limitation on the technical solutions of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any restrictions on this.

[0154] It should be understood that although the steps in the flowcharts of this application's embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the sub-steps or stages of other steps.

[0155] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of this invention. In practical applications, those skilled in the art can select some or all of the workflow to achieve the purpose of this embodiment according to actual needs, and no restrictions are imposed here.

[0156] Furthermore, it should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0157] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0158] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as read-only memory (ROM) / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0159] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A parametric beam segment BIM model design method applicable to multidimensional curve deformation, characterized in that, The parametric beam segment BIM model design method applicable to multidimensional curve deformation includes: Based on the design scheme of the beam segment BIM model, determine the sweep path, starting profile section, ending profile section, and beam segment constraint conditions of the beam segment to be designed. The constraint profile section of the beam segment to be designed is determined based on the constraint conditions of the beam segment. Based on the starting profile section, the ending profile section, and the constraint profile section, the beam segment sweep is performed according to the beam segment sweep path to obtain the beam segment BIM model of the beam segment to be designed; The step of determining the constrained profile section of the beam segment to be designed based on the beam segment constraint conditions includes: Determine the straight-line distance constraint parameters and curve characteristic constraint parameters based on the beam segment constraint conditions; The constraint points and constraint dimensions of the beam segment to be designed are determined based on the straight-line distance constraint parameters and the curve feature constraint parameters. The constraint profile section of the beam segment to be designed is determined based on the constraint points and the constraint dimensions of the points. The step of sweeping the beam segment BIM model of the beam segment to be designed according to the starting profile section, the ending profile section, and the constraint profile section along the beam segment sweep path includes: Obtain the original coordinate system and the starting path segment of the sweep path of the beam segment; The starting path segments are aligned and bound according to the original coordinate system to obtain the aligned sweep path; Based on the starting profile section, the ending profile section, and the constraint profile section, the beam segment BIM model of the beam segment to be designed is obtained by sweeping according to the alignment sweep path. The step of determining the sweep path, starting profile section, ending profile section, and beam segment constraints of the beam segment to be designed based on the design scheme of the beam segment BIM model includes: Based on the design scheme of the beam segment BIM model, determine the starting section control parameters, ending section control parameters, beam segment sweep path, and beam segment constraint conditions of the beam segment to be designed. The cross section is drawn according to the initial cross section control parameters to obtain the initial contour curve, and the initial contour cross section of the beam segment to be designed is obtained according to the initial contour curve. The section is drawn according to the control parameters of the termination section to obtain the termination profile curve, and the termination profile section of the beam segment to be designed is obtained according to the termination profile curve.

2. The method as described in claim 1, characterized in that, The step of drawing the cross section according to the initial cross section control parameters to obtain the initial contour curve includes: The initial outer contour reference line is determined based on the outer contour control parameters and reference line drawing principles in the initial section control parameters. Draw the initial inner contour reference line of the initial contour section according to the initial outer contour reference line and the reference line constraint conditions; The initial contour curve is obtained by drawing a curve based on the initial outer contour reference line, the initial inner contour reference line, and the initial section control parameters.

3. The method as described in claim 2, characterized in that, The step of drawing a curve based on the initial outer contour reference line, the initial inner contour reference line, and the initial cross-section control parameters to obtain the initial contour curve includes: The initial outer contour curve is determined by drawing a curve based on the initial outer contour reference line and the outer contour control parameters in the initial section control parameters. Multiple contour positioning points are created based on the initial outer contour curve, the inner contour control parameters in the initial section control parameters, and the initial inner contour reference line. Connect multiple contour positioning points to obtain the initial inner contour curve based on the connection results; Information is labeled on the initial inner contour curve and the initial outer contour curve, and the initial contour curve is obtained based on the labeling results.

4. The method according to any one of claims 1 to 3, characterized in that, After obtaining the beam segment BIM model of the beam segment to be designed by sweeping along the beam segment sweep path according to the starting profile section, the ending profile section, and the constrained profile section, the process further includes: Obtain the BIM models of the abutment section and the closure section of the bridge to be designed; The BIM models of the beam segment, the support segment, and the closure segment are spliced ​​together. The full-bridge BIM model of the bridge to be designed is obtained based on the splicing results.

5. A parametric beam segment BIM model design device applicable to multidimensional curve deformation, characterized in that, The parametric beam segment BIM model design device applicable to multidimensional curve deformation includes: The processing module is used to determine the sweep path, starting profile section, ending profile section, and beam segment constraints of the beam segment to be designed based on the design scheme of the beam segment BIM model. The processing module is also used to determine the constraint profile section of the beam segment to be designed based on the constraint conditions of the beam segment; The sweep module is used to sweep the beam segment according to the starting profile section, the ending profile section and the constraint profile section according to the beam segment sweep path to obtain the beam segment BIM model of the beam segment to be designed. The step of determining the constrained profile section of the beam segment to be designed based on the beam segment constraint conditions includes: Determine the straight-line distance constraint parameters and curve characteristic constraint parameters based on the beam segment constraint conditions; The constraint points and constraint dimensions of the beam segment to be designed are determined based on the straight-line distance constraint parameters and the curve feature constraint parameters. The constraint profile section of the beam segment to be designed is determined based on the constraint points and the constraint dimensions of the points. The step of sweeping the beam segment BIM model of the beam segment to be designed according to the starting profile section, the ending profile section, and the constraint profile section along the beam segment sweep path includes: Obtain the original coordinate system and the starting path segment of the sweep path of the beam segment; The starting path segments are aligned and bound according to the original coordinate system to obtain the aligned sweep path; Based on the starting profile section, the ending profile section, and the constraint profile section, the beam segment BIM model of the beam segment to be designed is obtained by sweeping according to the alignment sweep path. The step of determining the sweep path, starting profile section, ending profile section, and beam segment constraints of the beam segment to be designed based on the design scheme of the beam segment BIM model includes: Based on the design scheme of the beam segment BIM model, determine the starting section control parameters, ending section control parameters, beam segment sweep path, and beam segment constraint conditions of the beam segment to be designed. The cross section is drawn according to the initial cross section control parameters to obtain the initial contour curve, and the initial contour cross section of the beam segment to be designed is obtained according to the initial contour curve. The section is drawn according to the control parameters of the termination section to obtain the termination profile curve, and the termination profile section of the beam segment to be designed is obtained according to the termination profile curve.

6. A parametric beam segment BIM model design device suitable for multidimensional curve deformation, characterized in that, The parametric beam segment BIM model design device applicable to multidimensional curve deformation includes: a memory, a processor, and a parametric beam segment BIM model design program applicable to multidimensional curve deformation stored in the memory and executable on the processor. The parametric beam segment BIM model design program applicable to multidimensional curve deformation is configured to implement the parametric beam segment BIM model design method applicable to multidimensional curve deformation as described in any one of claims 1 to 4.

7. A storage medium, characterized in that, The storage medium stores a parametric beam segment BIM model design program applicable to multidimensional curve deformation. When the parametric beam segment BIM model design program applicable to multidimensional curve deformation is executed by the processor, it implements the parametric beam segment BIM model design method applicable to multidimensional curve deformation as described in any one of claims 1 to 4.

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