A curved guide rail beam and a model generation method thereof

Abstract

The present invention provides a curved guide rail beam and a model generation method thereof, the method comprising: drawing a cross-sectional view, the cross-sectional view comprising a plurality of main parts of the curved guide rail beam; selecting a plurality of main control points on the cross-sectional view; performing three-dimensional lofting of the cross-sectional view to the actual position of the curved guide rail beam; obtaining the coordinates of the main control points; and generating a three-dimensional model of the curved guide rail beam based on the coordinates of the main control points. According to a model generation method for a curved guide rail beam provided by the present invention, by selecting a plurality of main control points on the cross-sectional view and performing three-dimensional lofting of the cross-sectional view to the actual position of the curved guide rail beam, then obtaining the coordinates of the main control points and generating a three-dimensional model of the curved guide rail beam, the modeling accuracy is improved, the correction workload at the joints of the parts is reduced by selecting the positions of the main control points, and the modeling efficiency is improved by optimizing the number of main control points.

Description

Technical Field

[0001] The present invention relates to the field of rail transportation, and in particular to a curved guide rail beam and a model generation method thereof. Background Art

[0002] The curved rail beam is a double-twisted curved rail beam with plane bending and facade twisting, and the degree of twisting in the gentle curve part is gradual. Coupled with the superposition of longitudinal slope height and pre-camber, it presents a three-dimensional twisted structural steel beam. Therefore, there are difficulties in locating irregular lines, ensuring modeling accuracy, and improving modeling efficiency during the model generation process of the curved rail beam.

[0003] In the prior art, the modeling of curved guide rail beams is prone to errors, the modeling efficiency is low, and the modeling process is greatly affected by the experience of the designers, and the modeling accuracy is unstable. This leads to more bumps when the produced curved guide rail beams are assembled in sections, and the curved guide rail beams need to be corrected a lot after assembly.

[0004] Therefore, the present invention provides a new curved guide rail beam and a model generation method thereof to solve the above problems. Summary of the invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0006] The present invention provides a method for generating a model of a curved guide rail beam, comprising the following steps:

[0007] Drawing a cross-sectional view, the cross-sectional view including a plurality of main body components of the curved guide rail beam;

[0008] Selecting a plurality of main control points on the cross-sectional view;

[0009] Performing three-dimensional lofting of the cross-sectional view to the actual position of the curved guide rail beam;

[0010] Obtaining the coordinates of the master control point;

[0011] A three-dimensional model of the curved guide rail beam is generated based on the coordinates of the main control points.

[0012] Furthermore, before performing three-dimensional lofting on the cross section, the method further comprises the following steps:

[0013] Acquire the curve of the curved guide rail beam;

[0014] segmenting the curve;

[0015] Selecting a position point on the curve;

[0016] The cross-sectional view is placed at the location point.

[0017] Furthermore, three-dimensional lofting of the cross-sectional diagram includes rotating and moving the cross-sectional diagram to the actual position of the curved guide rail beam according to the superelevation value, pre-camber value and longitudinal slope height value of the position point.

[0018] Further, after three-dimensionally lofting the cross-sectional view to the actual position of the curved guide rail beam, the method further includes the following steps:

[0019] Optimize the number of master control points.

[0020] Further, generating a three-dimensional model of the curved guide rail beam based on the coordinates of the main control points includes:

[0021] The coordinates of the master control points are input into a modeling software to generate a three-dimensional model of the curved guide rail beam, wherein the modeling software includes a steel structure detailing design software.

[0022] Further, obtaining the coordinates of the main control point includes the steps of:

[0023] Aggregating the main control points on each of the main components to create a layer for each of the main components;

[0024] The coordinates of the master control points in each of the layers are exported and processed into a readable format for the modeling software.

[0025] Further, after generating the three-dimensional model of the curved guide rail beam based on the coordinates of the main control points, the following steps are also included:

[0026] Generating coordinate points on the three-dimensional model;

[0027] The three-dimensional model is completed using the coordinate points.

[0028] Furthermore, the main control point is selected on the main component of the curved guide rail beam or at the junction of the main components.

[0029] In addition, the present invention also provides a curved guide rail beam generated according to the above model generation method.

[0030] Furthermore, the curved guide rail beam comprises a box-type guide rail beam, and the main components of the box-type guide rail beam include a first top plate, a first bottom plate, a first inner web plate, a first outer web plate, a second top plate, a second bottom plate, a second inner web plate, and a second outer web plate.

[0031] Furthermore, the curved guide rail beam comprises an I-shaped guide rail beam, and the main components of the I-shaped guide rail beam comprise a first top plate, a first bottom plate, a first web plate, a second top plate, a second bottom plate, and a second web plate.

[0032] Furthermore, it is characterized in that the curved guide rail beam also includes auxiliary components, and the auxiliary components include transverse connecting members and transverse partitions.

[0033] According to a model generation method for a curved guide rail beam provided by the present invention, multiple main control points are selected on a cross-sectional view and the cross-sectional view is three-dimensionally lofted to the actual position of the curved guide rail beam, and then the coordinates of the main control points are obtained and a three-dimensional model of the curved guide rail beam is generated, thereby improving the modeling accuracy, reducing the correction workload at the joints of components by selecting the positions of the main control points, and improving the modeling efficiency by optimizing the number of main control points. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and other purposes, features and advantages of the present invention will become more apparent by describing the embodiments of the present invention in more detail in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0035] In the attached figure:

[0036] Figure 1 is a schematic flow chart of a method for generating a model of a curved guide rail beam according to an exemplary embodiment of the present invention;

[0037] Figure 2 is a cross-sectional view of a box-type guide rail beam according to an exemplary embodiment of the present invention.

[0038] Figure 3 is a cross-sectional view of an I-rail beam according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0039] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0040] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and fully convey the scope of the present invention to those skilled in the art. In the accompanying drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity. The same reference numerals throughout represent the same elements.

[0041] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present invention. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0042] In order to fully understand the present invention, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution proposed by the present invention. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0043] Aiming at the problems that errors are easy to occur when modeling the curved guide rail beam in the prior art, resulting in low modeling efficiency, the modeling process is greatly affected by the experience of designers, the modeling accuracy is unstable, and then more bumps are generated when the produced curved guide rail beam is assembled in sections, and a large number of corrections are required for the curved guide rail beam after assembly. The present invention provides a model generation method for a curved guide rail beam, such as Figure 1 As shown, the following steps are included:

[0044] S101: drawing a cross-sectional view, wherein the cross-sectional view includes a plurality of main body components of the curved guide rail beam;

[0045] S102: Selecting a plurality of main control points on the cross-sectional view;

[0046] S103: performing three-dimensional lofting of the cross-sectional view to the actual position of the curved guide rail beam;

[0047] S104: Acquire the coordinates of the main control point;

[0048] S105: Generate a three-dimensional model of the curved guide rail beam based on the coordinates of the main control points.

[0049] First, step S101 is performed: a cross-sectional view is drawn, wherein the cross-sectional view includes a plurality of main body components of the curved guide rail beam.

[0050] Exemplarily, since the curved guide rail beam includes two guide rails arranged oppositely along the width direction of the curved guide rail beam, the distance between the two guide rails (i.e., the width of the curved guide rail beam) is equal everywhere. The cross-sectional view includes a first cross-sectional view and a second cross-sectional view of the two oppositely arranged guide rails, and the first cross-sectional view and the second cross-sectional view both include the main body components of the guide rails, such as the top plate, the bottom plate, and the web plate.

[0051] Figure 2 A cross-sectional view of a box rail beam is shown, as Figure 2 As shown, the box-type guide rail beam includes eight main components, and the eight main components include a first top plate 21, a first bottom plate 22, a first inner web 23, a first outer web 24, a second top plate 25, a second bottom plate 26, a second inner web 27 and a second outer web 28.

[0052] It should be noted that the curved guide rail beam of the present invention includes various types of guide rail beams, and is not limited to box-type guide rail beams. The drawing of the cross-sectional view can be adjusted according to different types of curved guide rail beams. For example, for an I-shaped guide rail beam, Figure 3 As shown, the cross-sectional view thereof includes six main body components, and the six main body components include a first top plate 31 , a first bottom plate 32 , a first web plate 33 , a second top plate 34 , a second bottom plate 35 and a second web plate 36 .

[0053] By drawing a cross-sectional diagram, and the cross-sectional diagram includes multiple main components of the curved guide rail beam, the main components of the curved guide rail beam are first modeled, which can reduce the interference of other components (such as transverse connectors, transverse partitions and other auxiliary components) in the three-dimensional modeling process, reduce workload, and improve modeling accuracy and efficiency.

[0054] Next, step S102 is performed: a plurality of main control points are selected on the cross-sectional view.

[0055] Exemplarily, the main control points are selected on the main components of the curved guide rail beam or at the joints of the main components, including but not limited to the cross-section containing transverse partitions, steel beam joints, expansion joints, beam-column connections, and other locations where the curved guide rail beam components need to be connected or connected with other external structures.

[0056] In one embodiment, Figure 2As shown, the main control points include but are not limited to the main control points Ax selected at the two ends of the first outer web 24 (i.e., the junction of the first outer web 24 and the first top plate 21 and the junction of the first outer web 24 and the first bottom plate 22), the main control points Bx selected at the two ends of the second outer web 28 (i.e., the junction of the second outer web 28 and the second top plate 25 and the junction of the second outer web 28 and the second bottom plate 26), the main control points Bx selected at the two ends of the first inner web 23 (i.e., the junction of the first inner web 23 and the first top plate 21 and the junction of the second outer web 28 and the second bottom plate 26), and the main control points Bx selected at the two ends of the first inner web 23 (i.e., the junction of the first inner web 23 and the first top plate 21 and the junction of the second outer web 28 and the second bottom plate 26). The main control point Cx is selected at the junction of the first inner web 23 and the first bottom plate 22, the main control point Dx is selected at both ends of the second inner web 27 (i.e., the junction of the second inner web 27 and the second top plate 25 and the junction of the second inner web 27 and the second bottom plate 22), the main control point Ex is selected at both ends of the first top plate 21, the main control point Fx is selected at both ends of the second top plate 25, the main control point Gx is selected at both ends of the first bottom plate 22, and the main control point Hx is selected at both ends of the second bottom plate 26.

[0057] By selecting the main control points on the above-mentioned main components or at the joints of the main components, the modeling efficiency is greatly improved. At the same time, the model is generated by the coordinates of the main control points, which can improve the control of the accuracy of each main component and the joints of each component, that is, improve the accuracy of the running surface and guide surface of the curved guide beam. In addition, since the model is formed as an integral whole, it avoids large errors caused by the accumulation of errors of various components, avoids a large number of bumps during assembly in the subsequent process, and avoids a large number of corrections to the joints.

[0058] Next, the step of obtaining the curve of the curved guide rail beam is performed.

[0059] Exemplarily, the curve includes a transition curve and a circular curve. Since the curved guide beam is a double-twisted steel beam with plane bending and cross-sectional torsion, when the train travels on the curved guide beam, some force characteristics that are significantly different from those in straight-line operation appear, such as the centrifugal force of curved operation and the impact force caused by the discontinuity of the superelevation of the curved guide beam. In order to prevent the above-mentioned forces from suddenly appearing and disappearing and to maintain the stability of the curve operation of the train, it is necessary to set a curve between the straight line and the circular curve track in which the radius of curvature and the superelevation of the curved guide beam both change gradually, i.e., a transition curve. The transition curve can be known information given by the design unit, or it can be drawn according to the maximum slope value of the curved guide beam and the superelevation change rate of the curve.

[0060] Next, the step of segmenting the curve is performed.

[0061] Exemplarily, the curve can be segmented according to the length. The more segments there are, the higher the accuracy of the curved guide beam modeling, but the greater the workload. Therefore, the curve needs to be segmented reasonably to balance between improving the accuracy of the curved guide beam modeling and reducing the workload. In one embodiment, the segmentation can be performed according to the module of the curve radius and the spacing between the diaphragms. The segment length can be selected as needed. When the curve radius is small, the segment length is small, and when the curve radius is large, the segment length is large, including but not limited to 1m, 3m, 5m or 10m.

[0062] Next, the steps are performed: selecting a position point on the curve and placing the cross-sectional view at the position point.

[0063] In one embodiment, the curve is drawn with the top surface center of the curved guide beam, and the curve can be regarded as composed of countless top surface center position points, and then the top surface center of the above cross-sectional diagram (i.e., the center of the top surface formed by the first top plate and the second top plate) is placed at the above position point.

[0064] In other embodiments, the curve may also be drawn with other points of the curved guide rail beam, such as the bottom center of the curved guide rail beam, and then the corresponding point on the cross section is placed at the position point of the curve.

[0065] Next, step S103 is executed: three-dimensional lofting of the cross-sectional view to the actual position of the curved guide rail beam is performed.

[0066] Lofting is to use a two-dimensional object as a cross section along a path to form a complex three-dimensional object. Lofting can be used to build many complex models. In engineering, it is used to "move" the plan on the drawing to the actual site.

[0067] Exemplarily, three-dimensional lofting of the cross-sectional view includes rotating and moving the cross-sectional view to the actual position of the curved guide rail beam according to the superelevation value, pre-camber value and longitudinal slope height value of the position point.

[0068] First, the elevation of the position point is calculated. For example, the elevation values ​​of different position points can be calculated based on the reference height value, the longitudinal slope height value and the pre-camber value. For example, the elevation value of different position points = reference height value + longitudinal slope height value + pre-camber value.

[0069] Secondly, the rotation angle of the cross-sectional view at the position point is calculated, which is mainly caused by two parts, namely, the torsion angle caused by the combined effect of the superelevation value and the height difference between the inner and outer pre-cambers.

[0070] In the first step, the twist angle caused by the superelevation value is calculated.

[0071] The superelevation value of each position point is obtained, wherein the superelevation value of each position point on the circular curve remains unchanged, and the superelevation value of each position point on the transition curve is obtained by calculating the superelevation change rate.

[0072] After obtaining the superelevation value, the torsion caused by the superelevation value is realized. For example, a semi-superelevation form is adopted, that is, the center height of the line remains unchanged, and the inner side is lowered and the outer side is raised by half of the superelevation value through rotation. Of course, it is not limited to the semi-superelevation form, and the full superelevation form can be adopted.

[0073] The second step is to calculate the torsion angle caused by the height difference between the inner and outer pre-cambers. It can be understood that the outer pre-camber is larger than the inner pre-camber, and the torsion angle caused by the height difference between the inner and outer pre-cambers can be calculated by calculating the ratio of the height difference between the inner and outer pre-cambers and the width of the guide rail beam, and then converted into a torsion angle.

[0074] After obtaining the torsion angle caused by the height difference between the inner and outer pre-arches, the torsion caused by the height difference between the inner and outer pre-arches is realized. For example, the center of the top surface of the curved guide rail beam can be arched upward to a certain height, which is equal to the average of the inner pre-arch and the outer pre-arch. Then, the cross-sectional view is twisted by the torsion angle caused by the inner and outer pre-arch height values ​​with the center of the top surface as the rotation center.

[0075] The elevation of the position point can be used to locate the placement position of the top surface center of the cross-sectional diagram. By calculating the rotation angle of the cross-sectional diagram at the position point, the cross-sectional diagram can be twisted with the top surface center of the cross-sectional diagram as the rotation center, so that the cross-sectional diagram is rotated to the actual position of the curved guide rail beam.

[0076] Exemplarily, three-dimensional lofting of the cross-sectional view is performed in design software.

[0077] Furthermore, the design software includes but is not limited to Computer Aided Design (CAD), which is a process of using computer software to create and simulate physical designs to show the appearance, structure, color, texture and other characteristics of newly developed products. It should be noted that the above CAD software is only exemplary, and any software that can be used to realize the design of irregular curves of curved guide rail beams can be used in the present invention.

[0078] Next, after three-dimensionally lofting the cross-sectional view to the actual position of the curved guide rail beam, the method further includes the step of optimizing the number of the main control points.

[0079] As an example, CAD software is used to rotate and move the two-dimensional cross-sectional view to the three-dimensional space of the actual main contour position of the curved guide beam. The main control points selected on the two-dimensional cross-sectional view are all presented on the main contour of the curved guide beam in the above three-dimensional space, and the main control points are further optimized, and unnecessary main control points are deleted. If the unnecessary main control points, for example, the main control points selected at the junction of two components coincide with the main control points selected on a certain component, one of the main control points is deleted.

[0080] By deleting some unnecessary main control points and reducing the density of main control points at local locations, the number of main control points can be optimized, the amount of calculation and operation can be reduced, and the modeling efficiency can be improved while ensuring the modeling accuracy.

[0081] Next, step S104 is executed: obtaining the coordinates of the main control point.

[0082] First, the step of aggregating the main control points on each of the main components is performed to create a layer for each of the main components.

[0083] As an example, layers are created for the eight main parts of the box-type guide rail beam: the first top plate 21, the first bottom plate 22, the first inner web 23, the first outer web 24, the second top plate 25, the second bottom plate 26, the second inner web 27 and the second outer web 28. Specifically, Figure 2 As shown, all the main control points Ex are aggregated to create the first top plate layer; all the main control points Fx are aggregated to create the second top plate layer; all the main control points Gx are aggregated to create the first bottom plate layer; all the main control points Hx are aggregated to create the second bottom plate layer; all the main control points Ax are aggregated to create the first outer web layer; all the main control points Cx are aggregated to create the first inner web layer; all the main control points Bx are aggregated to create the second outer web layer; all the main control points Dx are aggregated to create the first inner web layer.

[0084] Next, the step of obtaining the coordinates of the main control points in each of the layers is performed.

[0085] First, coordinate processing is performed on the master control points in each layer to number the master control points by layer. As an example, the above coordinate processing operation can be performed by a coordinate processing program. As an example, the operation of numbering the master control points includes customizing the starting number, etc. After all the master control points are clicked, all the master control point numbers are displayed.

[0086] Next, follow the steps: Pick a master control point to get the master control point coordinates.

[0087] As an example, when selecting the master control points, select them by layer respectively, so as to obtain the coordinates of the master control points of each layer. Specifically, through the above steps, the coordinates of the master control points of eight layers, namely, the first top plate 21, the first bottom plate 22, the first inner web 23, the first outer web 24, the second top plate 25, the second bottom plate 26, the second inner web 27 and the second outer web 28, can be obtained respectively.

[0088] Next, in the execution step: export the coordinates of the master control points in each layer and process the format.

[0089] Exemplarily, the coordinates of the main control points in each layer are processed into a readable format of the modeling software, and the readable format of the modeling software includes but is not limited to a plain text file (txt), a spreadsheet (excel), and the like.

[0090] Exemplarily, the modeling software includes steel structure detail design software, and the steel structure detail design software may be Tekla Structures (also known as Xsteel) software developed by Tekla of Finland. It should be noted that the above Tekla Structures software is only exemplary, and any software that can be used to implement steel structure detail design of curved guide rail beams can be used in the present invention.

[0091] As an example, the coordinates of the main control points of the eight layers of the box-type guide rail beam are exported as text in txt format.

[0092] Furthermore, the exported coordinate data is optimized. As an example, irrelevant characters and coordinate numbers in the txt format text are deleted.

[0093] Next, S105: generating a three-dimensional model of the curved guide rail beam based on the coordinates of the main control points. Specifically, the coordinates of the main control points are input into a modeling software to generate a three-dimensional model of the curved guide rail beam.

[0094] For example, Tekla Structures steel structure detailing design software automatically generates steel structure details and various reports by first creating a 3D model. Since the drawings and reports are based on the model, and the operator can easily find out whether there are errors in the connection between components in the 3D model, it ensures the correctness of the components in the steel structure detailing design. At the same time, the various reports and interface files (CNC cutting files) automatically generated by Tekla Structures steel structure detailing design software can serve (or be used directly on the equipment) the entire project.

[0095] As an example, the coordinate data of the txt format text is input into the Tekla Structures steel structure detailing design software to generate a three-dimensional model of the curved guide rail beam, and the connection accuracy between the components of the generated three-dimensional model of the curved guide rail beam is high, and fewer correction operations are required.

[0096] Furthermore, it should be noted during the data import process that the 8 txt main control point files generated for the 8 main components of the super-elevated curved guide beam must be accurately distinguished, the top plate and bottom plate must be distinguished between left and right, up and down, and the web plate must be distinguished between left and right, inside and outside.

[0097] Through the method provided by the present invention, the eight main components (first top plate, first bottom plate, first outer web, first inner web, second top plate, second bottom plate, second outer web and second inner web) of each section of the curved guide rail beam can be formed at one time, thereby improving the modeling efficiency.

[0098] Next, the method further includes generating coordinate points on the three-dimensional model and using the coordinate points to improve the three-dimensional model.

[0099] Exemplarily, after the coordinates of the main control points are input into the modeling software, the generated three-dimensional model only includes the main body parts. In addition to the main body parts, the curved guide rail beam also includes a plurality of auxiliary parts, such as transverse connectors, transverse partitions, etc. Therefore, it is necessary to further generate coordinate points and use the coordinate points to draw auxiliary parts, etc., so as to make the generated three-dimensional model more perfect. Specifically, the coordinate points can be generated on the three-dimensional model using the insertion point program. The coordinate points generated in the three-dimensional model have prefixes, colors, and starting point distinctions. Furthermore, as needed, the coordinate points in the three-dimensional model can be deleted, hidden, or their properties can be customized.

[0100] The coordinate points are mainly used for: (1) improving the components such as the transverse partitions and transverse connectors of the three-dimensional model of the curved guide rail beam according to the positions of the coordinate points; (2) extracting the generated coordinate points and important coordinate points such as the connection points between the transverse partitions, transverse connectors and other main components, so as to facilitate the subsequent provision of three-dimensional coordinate points to the processing plant for the production of the curved guide rail beam frame.

[0101] Generating a three-dimensional model of a curved guide rail beam by the method of the present invention has the following advantages:

[0102] (1) Use the coordinates of the main control points to control the direction of the irregular curve profile of the curved guide beam so that the modeling accuracy can be controlled;

[0103] (2) The top plate, bottom plate and web plate of each curved guide beam are formed in one step, which improves modeling efficiency;

[0104] (3) By generating coordinate points on the 3D model, you can quickly create parts that are not affected by superelevation, improve the model, and provide coordinate information for future tire frame drawing production.

[0105] Embodiment 2

[0106] A curved guide rail beam, wherein the curved guide rail beam is generated by the following method:

[0107] Drawing a cross-sectional view, the cross-sectional view including a plurality of main body components of the curved guide rail beam;

[0108] Selecting a plurality of main control points on the cross-sectional view;

[0109] Performing three-dimensional lofting of the cross-sectional view to the actual position of the curved guide rail beam;

[0110] Obtaining the coordinates of the master control point;

[0111] A three-dimensional model of the curved guide rail beam is generated based on the coordinates of the main control points.

[0112] Exemplarily, the curved guide rail beam is a double-twisted steel beam with plane bending and facade torsion, and the degree of twisting in the gentle curve part is gradual. Combined with the superposition of the longitudinal slope height and the pre-arch, it presents a three-dimensional twisted structural steel beam.

[0113] Exemplarily, the curved guide rail beam comprises two guide rails arranged opposite to each other along the width direction of the curved guide rail beam, and the width between the two guide rails is equal everywhere.

[0114] like Figure 2 As shown, the curved guide rail beam includes a box-type guide rail beam, and the box-type guide rail beam includes eight main components, and the eight main components include a first top plate 21, a first bottom plate 22, a first inner web plate 23, a first outer web plate 24, a second top plate 25, a second bottom plate 26, a second inner web plate 27 and a second outer web plate 28.

[0115] Therefore, the cross-sectional view drawn for the box-type guide rail beam also includes the above-mentioned eight main components, and the main control points are selected on the main components of the curved guide rail beam or at the joints of the main components, including but not limited to the cross-section containing cross partitions, steel beam joints, expansion joints, beam-column connections, and other locations where the curved guide rail beam components need to be connected or connected with other external structures.

[0116] Exemplarily, performing three-dimensional lofting on the cross-sectional view includes rotating and moving the cross-sectional view to the actual position of the curved guide rail beam according to the superelevation value, pre-camber value and longitudinal slope height value of the position point. Performing three-dimensional lofting on the cross-sectional view is performed in design software, and the design software includes but is not limited to computer-aided design (CAD). CAD is a process of using computer software to create and simulate physical designs to show the appearance, structure, color, texture and other characteristics of newly developed products. It should be noted that the above-mentioned CAD software is only exemplary, and any software that can be used to realize the design of irregular curves of curved guide rail beams can be used in the present invention.

[0117] Exemplarily, the coordinates of the master control points are input into a modeling software to generate a three-dimensional model of the curved guide rail beam. The modeling software includes a steel structure detail design software, and the steel structure detail design software can be Tekla Structures (also known as Xsteel) software developed by Tekla of Finland. It should be noted that the above-mentioned Tekla Structures software is only exemplary, and any software that can be used to implement the steel structure detail design of the curved guide rail beam can be used in the present invention.

[0118] Exemplarily, the box-type guide rail beam further includes auxiliary components, including a transverse connector disposed between the two guide rails, and a transverse partition disposed between the first outer web and the first inner web and between the second outer web and the second inner web.

[0119] The step of forming the auxiliary components includes: after the coordinates of the main control points are input into the modeling software, the generated three-dimensional model only includes the main components. In addition to the main components, the curved guide rail beam also includes multiple auxiliary components, such as transverse connectors, transverse partitions, etc., so it is necessary to further generate coordinate points, and use the coordinate points to draw auxiliary components, etc., so as to make the generated three-dimensional model more perfect. Specifically, the coordinate points can be generated on the three-dimensional model using a plug-in program, and the coordinate points generated in the three-dimensional model have prefixes, colors, and starting point distinctions. Furthermore, according to needs, the coordinate points in the three-dimensional model can be deleted, hidden, or their properties can be customized.

[0120] Embodiment 3

[0121] A curved guide rail beam, wherein the curved guide rail beam is generated by the following method:

[0122] Drawing a cross-sectional view, the cross-sectional view including a plurality of main body components of the curved guide rail beam;

[0123] Selecting a plurality of main control points on the cross-sectional view;

[0124] Performing three-dimensional lofting of the cross-sectional view to the actual position of the curved guide rail beam;

[0125] Obtaining the coordinates of the master control point;

[0126] A three-dimensional model of the curved guide rail beam is generated based on the coordinates of the main control points.

[0127] Exemplarily, the curved guide rail beam is a double-twisted steel beam with plane bending and facade torsion, and the degree of twisting in the gentle curve part is gradual. Combined with the superposition of the longitudinal slope height and the pre-arch, it presents a three-dimensional twisted structural steel beam.

[0128] Exemplarily, the curved guide rail beam comprises two guide rails arranged opposite to each other along the width direction of the curved guide rail beam, and the width between the two guide rails is equal everywhere.

[0129] like Figure 3 As shown, the curved guide rail beam includes an I-beam guide rail beam, and the I-beam guide rail beam includes six main components, and the six main components include a first top plate 31, a first bottom plate 32, a first web plate 33, a second top plate 34, a second bottom plate 35, and a second web plate 36.

[0130] Therefore, the cross-sectional view drawn for the I-beam guide beam also includes the above-mentioned six main components, and the main control points are selected on the main components of the curved guide beam or at the junction of the main components, including but not limited to the cross-section containing cross partitions, steel beam joints, expansion joints, beam-column connections, and other locations where the curved guide beam components need to be connected or connected with other external structures.

[0131] Exemplarily, performing three-dimensional lofting on the cross-sectional view includes rotating and moving the cross-sectional view to the actual position of the curved guide rail beam according to the superelevation value, pre-camber value and longitudinal slope height value of the position point. Performing three-dimensional lofting on the cross-sectional view is performed in design software, and the design software includes but is not limited to computer-aided design (CAD). CAD is a process of using computer software to create and simulate physical designs to show the appearance, structure, color, texture and other characteristics of newly developed products. It should be noted that the above-mentioned CAD software is only exemplary, and any software that can be used to realize the design of irregular curves of curved guide rail beams can be used in the present invention.

[0132] Exemplarily, the coordinates of the master control points are input into a modeling software to generate a three-dimensional model of the curved guide rail beam. The modeling software includes a steel structure detail design software, and the steel structure detail design software can be Tekla Structures (also known as Xsteel) software developed by Tekla of Finland. It should be noted that the above-mentioned Tekla Structures software is only exemplary, and any software that can be used to implement the steel structure detail design of the curved guide rail beam can be used in the present invention.

[0133] Exemplarily, the I-beam guide rail beam further comprises an auxiliary component, wherein the auxiliary component comprises a transverse connecting member arranged between two guide rails.

[0134] The step of forming the auxiliary components includes: after inputting the coordinates of the main control points into the modeling software, the generated three-dimensional model only includes the main components. In addition to the main components, the curved guide rail beam also includes multiple auxiliary components, such as transverse connectors, etc., so it is necessary to further generate coordinate points, use the coordinate points to draw the auxiliary components, etc., so as to make the generated three-dimensional model more perfect. Specifically, the coordinate points can be generated on the three-dimensional model using a plug-in program, and the coordinate points generated in the three-dimensional model have prefixes, colors, and starting point distinctions. Furthermore, according to needs, the coordinate points in the three-dimensional model can be deleted, hidden, or their properties can be customized.

[0135] According to a model generation method for a curved guide rail beam provided by the present invention, multiple main control points are selected on a cross-sectional view and the cross-sectional view is three-dimensionally lofted to the actual position of the curved guide rail beam, and then the coordinates of the main control points are obtained and a three-dimensional model of the curved guide rail beam is generated, thereby improving the modeling accuracy, reducing the correction workload at the joints of components by selecting the positions of the main control points, and improving the modeling efficiency by optimizing the number of main control points.

[0136] The present invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for generating a model of a curved guide rail beam, characterized in that: The following steps are involved: Drawing a cross-sectional view, the cross-sectional view including a plurality of main body components of the curved guide rail beam; Selecting a plurality of main control points on the cross-sectional view; Obtaining a curve of the curved guide rail beam, selecting a position point on the curve, and placing the cross-sectional view at the position point; Performing three-dimensional lofting of the cross-sectional view to the actual position of the curved guide rail beam; Obtaining the coordinates of the main control point; Generating a three-dimensional model of the curved guide rail beam based on the coordinates of the main control points; Wherein, performing three-dimensional lofting of the cross-sectional diagram to the actual position of the curved guide rail beam comprises rotating and moving the cross-sectional diagram to the actual position of the curved guide rail beam according to the superelevation value, pre-camber value and longitudinal slope height value of the position point; Generating the three-dimensional model of the curved guide rail beam based on the coordinates of the master control points comprises: inputting the coordinates of the master control points into a modeling software to generate the three-dimensional model of the curved guide rail beam, wherein the modeling software comprises a steel structure detailing design software; The obtaining of the coordinates of the main control point comprises: Aggregating the main control points on each of the main components to create a layer for each of the main components; The coordinates of the master control points in each of the layers are exported and processed into a readable format for the modeling software.

2. The model generation method according to claim 1, characterized in that: Also includes the steps: The curve is segmented.

3. The model generation method according to claim 1, characterized in that: After the cross-sectional view is three-dimensionally lofted to the actual position of the curved guide rail beam, the method further comprises the following steps: Optimize the number of master control points.

4. The model generation method according to claim 1, characterized in that: After generating the three-dimensional model of the curved guide rail beam based on the coordinates of the main control points, the method further includes the following steps: Generating coordinate points on the three-dimensional model; The three-dimensional model is completed using the coordinate points.

5. The model generation method according to claim 1, characterized in that: The main control point is selected on the main component of the curved guide rail beam or at the junction of the main components.

6. A curved guide rail beam generated by the model generation method according to any one of claims 1 to 5.

7. The curved guide rail beam according to claim 6, characterized in that: The curved guide rail beam comprises a box-type guide rail beam, and the main components of the box-type guide rail beam include a first top plate, a first bottom plate, a first inner web plate, a first outer web plate, a second top plate, a second bottom plate, a second inner web plate, and a second outer web plate.

8. The curved guide rail beam according to claim 6, characterized in that: The curved guide rail beam comprises an I-shaped guide rail beam, and the main body components of the I-shaped guide rail beam comprise a first top plate, a first bottom plate, a first web plate, a second top plate, a second bottom plate, and a second web plate.

9. The curved guide rail beam according to claim 8 or 7, characterized in that: The curved guide rail beam also includes auxiliary components, which include transverse connecting members and transverse partitions.

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