Road prefabricated small box girder parametric modeling method based on Bentley and related equipment

Abstract

The invention discloses a Bentley-based highway prefabricated small box girder parameterization modeling method and related equipment, and the method comprises the steps: firstly achieving the parameterization of a two-dimensional contour through a primitive, enabling the two-dimensional contour to form a parameterization component through the methods of stretching, scanning and the like, and enabling the component to form a complex component or assembly through the operations of combination, intersection, arrangement, transformation and the like; calculating by using an algorithm between the assemblies by using the assembly integrated function to form a combination of the assemblies; and an integral bridge is formed through preliminary structural assembly and integral assembly. The scheme can be used for parametric modeling of the bridge, the modeling efficiency is integrally improved, and the problems existing in the prior art can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of infrastructure, and in particular to a parametric modeling technology of a prefabricated small box girder for a highway based on Bentley. Background Art

[0002] The current status of BIM technology application in the infrastructure sector has problems such as difficult modeling and low modeling efficiency. There are many special-shaped curve models in infrastructure, which require the combination of topological geometric algorithms and secondary development to complete the creation of high-quality BIM models with effective information, form the core carrier of BIM data, and lay a good foundation for the integration of big data, the Internet of Things, GIS, etc. However, the existing technical personnel in the construction industry have a single ability structure and little understanding of geometric algorithms and secondary development technologies. This is also one of the important reasons why BIM modeling and application of infrastructure are difficult and its popularity is poor.

[0003] At present, the parametric modeling of infrastructure projects has the following requirements: improve the professional level of modeling software and the convenience of operation according to the engineering characteristics of infrastructure projects. Linear engineering is long, the model volume is large, and the hardware requirements are extremely high. Model lightweighting is an urgent problem to be solved, otherwise it will be difficult to carry out subsequent model applications. Infrastructure linear engineering often has a high degree of modularization, especially in the modeling process of bridge engineering and ancillary engineering, there are often a lot of repetitive operations, and the advantages of parametric application are obvious.

[0004] Currently, Revit software is used for modeling small box girders, and needs to be used interchangeably with other software. In addition, the conventional Bentley software for modeling prefabricated small box girders for highways has poor parameterization functions and low modeling efficiency. Moreover, changing the size of prefabricated components during design often requires re-modeling, and the model size cannot be adjusted in real time according to the structural section, resulting in a large amount of repetitive modeling work.

[0005] Furthermore, highway prefabricated small box girders include middle box girders, side box girders, hollow oblique octagonal bodies, wet joints, etc. Conventional modeling often requires modeling of each component model, and then assembling multiple component models according to quantity and type. However, if the model parameters need to be adjusted, each component model must be adjusted, and there are often joints between models. Parameter adjustment leads to a large workload for model adjustment. Summary of the invention

[0006] In view of the problems of low efficiency and large workload in parameter adjustment in the existing parametric modeling of prefabricated small box girders for highways, the purpose of the present invention is to provide a parametric modeling scheme for prefabricated small box girders for highways based on Bentley. The prefabricated small box girders for highways formed by the scheme can be formed into an integral bridge according to the route and pile number of the bridge, and the model can be adjusted synchronously in real time after the parameters of the prefabricated small box girders for highways are adjusted. It can be used for parametric modeling of bridges to improve the overall efficiency of modeling.

[0007] In order to achieve the above object, the present invention provides a parametric modeling method for prefabricated small box beams of highway based on Bentley, comprising:

[0008] (1) parameterizing a two-dimensional contour by means of primitives, wherein the primitives define two-dimensional parameterized primitives;

[0009] (2) forming a three-dimensional parameterized component from the parameterized two-dimensional contour formed in step (1) by stretching and / or scanning;

[0010] (3) The three-dimensional parametric component formed in step (2) is formed into a complex component or assembly by one or more operations of combination, intersection, arrangement, and transformation;

[0011] (4) Using the component-to-body function to calculate between components using algorithms to form a combination of components;

[0012] (5) The combined body formed in step (5) undergoes preliminary structural assembly and overall assembly to form an integrated bridge.

[0013] In some embodiments of the present invention, in step (1), the center position of the graphic element is defined, and then the graphic element is used to parameterize the two-dimensional contours of the box girder, side box girder, inner hollow oblique octagon, and wet joint of the highway prefabricated small box girder.

[0014] In some embodiments of the present invention, in step (3), the relevant distance relationship between components is calculated based on the center position of each primitive, and then the components are formed into a complex component or assembly through one or more operations of combination, intersection, arrangement, and transformation.

[0015] In some embodiments of the present invention, the step (5) is performed according to the bridge route and pile number to form an integral bridge.

[0016] In some embodiments of the present invention, the process of overall assembly of the prefabricated small box beam for highway in step (5) is as follows:

[0017] 1) Adjust the position of the center point of the three-dimensional graphic element so that the center point of the graphic element of the highway prefabricated small box girder is located at the center point of the upper surface of the cross section.

[0018] 2) Import the bridge route, route elevation, and pile number into Bentley software;

[0019] 3) Place single-piece highway prefabricated small box girders according to the bridge route, route elevation, and pile number;

[0020] 4) completing the placement of the remaining multiple single-piece highway prefabricated small box beams, wherein the end point of the previous single-piece highway prefabricated small box beam is the starting point of the next single-piece highway prefabricated small box beam;

[0021] 5) Complete the overall assembly of the bridge box girder.

[0022] In order to achieve the above-mentioned purpose, the present invention also provides a computer-readable storage medium, on which a program is stored, and when the program is executed by a processor, the steps of the above-mentioned Bentley-based parametric modeling method for prefabricated small box girders for highways are implemented.

[0023] In order to achieve the above-mentioned object, the present invention also provides a processor, which is used to run a program, and when the program is running, the steps of the above-mentioned Bentley-based highway prefabricated small box girder parametric modeling method are executed.

[0024] In order to achieve the above-mentioned purpose, the present invention also provides a terminal device, which includes a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program code is loaded and executed by the processor to implement the steps of the above-mentioned Bentley-based parametric modeling method for prefabricated small box girders for highways.

[0025] In order to achieve the above-mentioned object, the present invention also provides a computer program product, which, when executed on a data processing device, is suitable for executing the steps of the above-mentioned Bentley-based parametric modeling method for prefabricated small box girders for highways.

[0026] The Bentley-based parametric modeling method for prefabricated small box girders for highways provided by the present invention can be used for parametric modeling of bridges, which can greatly improve the overall modeling efficiency. At the same time, after the parameters of the prefabricated small box girders for highways formed by the present solution are adjusted, the model is adjusted synchronously in real time, which effectively reduces the workload of model adjustment during parameter adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Figure 1 is an example of a graphic element in the present invention;

[0029] Figure 2 It is an example of the components in the present invention;

[0030] Figure 3 are examples of components in the present invention;

[0031] Figure 4 This is an example of adding components in the component body of the present invention;

[0032] Figure 5 This is an example of a component stitching surface in a component body of the present invention;

[0033] Figure 6 This is a preliminary assembly diagram of the bridge substructure of the present invention;

[0034] Figure 7It is a two-dimensional graphic element of a small box beam of the present invention;

[0035] Figure 8 This is an example of a middle box beam assembly of the present invention;

[0036] Fig. 9 This is an example of a side box beam assembly of the present invention;

[0037] Fig.10 This is an example of an oblique octahedron with an inner hole of a small box beam of the present invention;

[0038] Fig.11 This is an example of a middle box beam structure of the present invention in which the inner hole oblique octahedron is removed;

[0039] Fig.12 This is an example of the arrangement and combination of multiple small box beams in the assembly of the present invention;

[0040] Fig.13 This is an example of a wet joint arrangement combination in the assembly of the present invention;

[0041] Fig.14 This is an example of preliminary assembly of the prefabricated small box girder for highway of the present invention;

[0042] Fig.15 This is an example of adjusting the parameterized model of the prefabricated small box girder for highways of the present invention;

[0043] Fig.16 This is an example of binding component feature parameters and element identifiers of the present invention. DETAILED DESCRIPTION

[0044] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0045] Aiming at the problem of low efficiency of parametric modeling of prefabricated small box girders of existing infrastructure projects, the present invention provides a parametric modeling method of prefabricated small box girders of highways based on Bentley, which is mainly composed of the following steps:

[0046] (1) Parameterization of a two-dimensional contour is achieved through primitives, wherein the primitives define two-dimensional parameterized primitives.

[0047] In this step, the center position of the primitive is specifically defined, and then the primitive is used to parameterize the two-dimensional contours of the middle box girder, side box girder, inner hollow oblique octagon, and wet joint of the highway prefabricated small box girder.

[0048] (2) The parameterized two-dimensional contour formed in step (1) is used to form a three-dimensional parameterized component by stretching and / or scanning.

[0049] (3) The three-dimensional parametric component formed by step (2) is formed into a complex component or assembly through one or more operations of combination, intersection, arrangement, and transformation.

[0050] In this step, the relevant distance relationship between components is calculated based on the center position of each primitive, and then the components are combined, intersected, arranged, and transformed to form a complex component or assembly.

[0051] (4) Using the component-to-body function to calculate between components using algorithms to form a combination of components;

[0052] (5) The combined body formed in step (5) undergoes preliminary structural assembly and overall assembly to form an integrated bridge.

[0053] This step is carried out during the overall assembly according to the bridge route and pile number to form an integral bridge.

[0054] This Bentley-based parametric modeling method for highway prefabricated small box girders can be used for parametric modeling of bridges, and the overall modeling efficiency is improved.

[0055] The following describes in detail the implementation process and corresponding technical features of the Bentley-based parametric modeling method for prefabricated small box girders for highways.

[0056] The Bentley-based parametric modeling method for prefabricated small box girders for highways provided by the present invention mainly includes three stages in its specific implementation: establishment of a standard atlas of a structure, adjustment of a parametric model, and overall assembly.

[0057] The standard atlas establishment phase of the structure:

[0058] The standard atlas of structures is established at four levels: element, component, assembly, and assembly.

[0059] See also Figure 1 , the primitive defines a two-dimensional parametric primitive,

[0060] See also Figure 2 , component definition three-dimensional parametric component,

[0061] See also Figure 3 , components define three-dimensional parametric assemblies.

[0062] See also Figure 4 and Figure 5 ,The component body is formed by using algorithm calculation between components to form a combination of components.

[0063] On this basis, the structure is parameterized as follows:

[0064] Firstly, the parameterization of the two-dimensional contour is realized through the primitives, and the two-dimensional contour is used to form a parametric component through stretching, scanning and other methods;

[0065] Next, the components are combined, intersected, arranged, transformed, and other operations to form complex components or assemblies;

[0066] Next, the component synthesis function is used to calculate the algorithms between the components to form a combination of the components.

[0067] Here, the main parameters of a parametric component are its contour geometry parameters, height parameters, positioning parameters, etc., and the components or assemblies composed of these parameters establish their parameter relationships through common, expressions, etc. in order to ensure their mutual relationships.

[0068] As a further explanation, the standard atlas of highway prefabricated small box girder structures is established here, which is implemented through the following steps:

[0069] A) Define the center point of the primitive.

[0070] The center point of the primitive is the original point for editing the primitive. Subsequent component movements are all based on the center point of the primitive as the relative point for moving the components.

[0071] B) Define the reference surface.

[0072] The reference plane is the plane where the 2D primitive is edited in the 3D coordinate system. The 2D primitive stretching operation is performed relative to the reference plane.

[0073] C) Parameterization of the two-dimensional contours of the middle box girder, side box girder, inner hollow oblique octagon and wet joint is achieved through graphic elements.

[0074] The main definition of the primitive is a closed contour or path line. Specifically, the coordinates of the feature points on the contour are defined, and the feature points are connected to form a closed contour. The lines between adjacent feature points are the component feature parameters. The current primitive can be located in the XY, YZ or ZX plane. The top view is the XY plane. The horizontal right is the positive direction of the X axis, and the vertical upward is the positive direction of the Y axis. The continuous line or continuous line drawn by the straight line, arc and other line groups in the primitive then forms a closed contour. In this way, the length, width and other parameters of the contour can be adjusted parametrically, that is, the contour line changes successively after the value is modified.

[0075] D) Forming the middle box girder, side box girder, inner hollow oblique octagonal body and wet joint three-dimensional body.

[0076] The graphic element in step C is stretched by a certain length in one direction relative to the reference plane in step B through components to form a three-dimensional body; further, the three-dimensional body is calculated by addition, subtraction, stitching surfaces, surface intersection, etc., so as to realize the formation of a combined body by the scattered components.

[0077] E) The three-dimensional body of the middle box girder with the oblique octahedron removed and the three-dimensional body of the side box girder with the oblique octahedron removed.

[0078] In this step, by setting the positions of the graphic center point a of the inner hollow oblique octagon, the graphic center point b of the middle box girder, and the graphic center point c of the side box girder respectively, and then performing a subtraction operation, the operation of cutting off the inner hollow oblique octagon from the three-dimensional bodies of the middle box girder and the side box girder is realized to form the three-dimensional bodies of the middle box girder and the side box girder containing box girder holes.

[0079] F) The three-dimensional body of the middle box girder with the oblique octahedron removed, the three-dimensional body of the side box girder with the oblique octahedron removed, and the splicing of the three-dimensional body of the wet joint.

[0080] In this step, based on the center point of the primitive in step A (also the center point of the 3D body in step D), the algorithm controls the center point spacing between components so that the components are arranged in parallel without any gaps. Specifically, complex components or assemblies are formed through operations such as combination, intersection, arrangement, and transformation.

[0081] Parameterized model adjustment phase:

[0082] In this stage, parametric model adjustment is implemented based on the established standard drawings of the structure, so that the model and CAD wireframe can be changed simultaneously by simply changing the component feature parameters in the standard drawings of the structure.

[0083] As a further illustration, the process of implementing parameterized model tuning is as follows:

[0084] Models and CAD wireframes have unique element identifiers, and the component feature parameters are bound to the element identifiers and saved; based on this, when the corresponding parameters are modified, the model will be recreated and changed accordingly.

[0085] In this way, the characteristic parameters of each component can be adjusted visually according to the model and CAD wireframe, which is convenient for model modification. On the other hand, while the characteristic parameters of the component are adjusted, the relative relationship of the component remains unchanged and it still forms a three-dimensional body.

[0086] Overall assembly stage:

[0087] This stage specifically realizes the overall assembly of prefabricated small box beams for highways. The specific process is as follows:

[0088] 1) Adjust the center point position of the 3D primitive.

[0089] The graphic center point of the highway prefabricated small box girder formed after step F may not be at the center point of the upper surface of the cross section. The graphic center point of the highway prefabricated small box girder can be made to be at the center point of the upper surface of the cross section through an offset operation.

[0090] 2) The bridge route, route elevation, and pile number are imported into the Bentley software.

[0091] The bridge route, elevation and other data are extracted from the project drawings and imported into the Bentley software. The specific implementation scheme is conventional technology and will not be elaborated here.

[0092] 3) Place single-piece prefabricated small box girders according to the bridge route, route elevation and pile number.

[0093] Specifically, the center point m of the single-piece prefabricated small box girder of the graphic element has its axial symmetry point as the graphic element point n. Point m is placed at the intersection of the initial pile number and the route, and the elevation of m is consistent with the elevation of the route. In addition, the direction of mn is consistent with the direction of the bridge route, and the elevation of point n is consistent with the end elevation of the single-piece prefabricated small box girder of the highway.

[0094] 4) Complete the placement of the remaining multiple single-piece highway prefabricated small box girders.

[0095] The placement method is the same as step 3), and the end point of the previous single-piece prefabricated highway small box girder is made to be the starting point of the next single-piece prefabricated highway small box girder.

[0096] 5) Complete the overall assembly of the bridge box girder.

[0097] As a further explanation, the preliminary assembly of the structure implemented here includes the preliminary assembly of the upper structure and the lower structure. Figure 6 As shown, through positioning, elevation processing, center alignment, rotation and other operations, the lower structures such as piers, cap beams and pier columns are spliced ​​together to form a lower structure unit.

[0098] As a further explanation, the overall assembly implemented here includes an upper structure, a lower structure, a route, a terrain, etc. The upper structure and the lower structure are assembled as a whole according to the route, angle, etc.

[0099] The implementation scheme of the Bentley-based parameterized modeling method for prefabricated small box girders for highways provided in the present invention is further illustrated below through specific application examples.

[0100] In this example, the structural modeling of a prefabricated small box girder for highway is taken as an example to illustrate the implementation process of the Bentley-based parametric modeling method for prefabricated small box girders for highways provided in the present invention for efficient structural modeling of prefabricated small box girders for highways.

[0101] The specific modeling process is as follows:

[0102] (1) Define the center point of the primitive.

[0103] like Figure 7 As shown, in this example, the center point of the upper side of the box girder is taken as the center point of the element.

[0104] (2) Define the reference plane.

[0105] This example focuses on YZ as the reference plane.

[0106] (3) The parameterization of the two-dimensional contours of the middle box girder, side box girder, inner hollow oblique octagon, and wet joint is realized through graphic elements.

[0107] like Figure 7 As shown, in this example, the middle box girder is taken as an example, W is the beam width, H1 is the web thickness, H is the beam height, M is the web slope, W4 is the inner lower chamfer, etc.

[0108] (4) By means of components, the primitive in step 3 is stretched by a length L in the X direction relative to the reference plane in step 2 to form a three-dimensional body, such as Figure 8 to Figure 10 As shown, a middle box girder, side box girders, an inner hollow oblique octagonal body, and a wet joint three-dimensional body are specifically formed.

[0109] (5) Remove the three-dimensional body of the middle box beam of the oblique octahedron, such as Fig.11 The three-dimensional body of the box girder with the oblique octahedron side removed is shown.

[0110] In this example, the positions of the graphic center point a of the inner hollow oblique octagon, the graphic center point b of the middle box girder, and the graphic center point c of the side box girder are set respectively, and then the subtraction operation is performed to realize the operation of cutting the inner hollow oblique octagon from the three-dimensional bodies of the middle box girder and the side box girder, so as to form the three-dimensional bodies of the middle box girder and the side box girder containing box girder holes.

[0111] (6) The three-dimensional body of the middle box beam with the oblique octahedron removed, the three-dimensional body of the side box beam with the oblique octahedron removed, and the three-dimensional body of the wet joint are spliced, such as Figure 12 to Figure 14 shown.

[0112] In this case, based on the center point of the primitive in step (1), which is also the center point of the three-dimensional body in step (4), the algorithm controls the center point spacing between components so that the components are arranged in parallel without any gaps. Specifically, complex components or assemblies are formed through operations such as combination, intersection, arrangement, and transformation.

[0113] (7) According to the design drawings, by changing the component characteristic parameters of the highway prefabricated small box beam, the model and CAD wireframe diagram are changed synchronously, such as Fig.15 and Fig.16 shown.

[0114] (8) Adjust the center point position of the three-dimensional entity.

[0115] In this example, the graphic center point of the prefabricated highway box girder formed through step (F) may not be at the center point of the upper surface of the cross section. By offset operation, the graphic center point of the prefabricated highway box girder can be located at the center point of the upper surface of the cross section.

[0116] (9) Import the bridge route, route elevation, and pile number into the Bentley software. Extract the bridge route, elevation, and other data from the project drawings and import them into the Bentley software.

[0117] (10) Place single-piece prefabricated small box girders according to the bridge route, route elevation, and pile number.

[0118] In this example, the center point m of the single-piece prefabricated small box girder is specifically set as the axial symmetry point of the element point n, and point m is placed at the intersection of the initial pile number and the route, and the elevation of m is consistent with the elevation of the route. In addition, the direction of mn is consistent with the direction of the bridge route, and the elevation of point n is consistent with the end elevation of the single-piece prefabricated small box girder.

[0119] (11) Complete the placement of the remaining multiple single-piece prefabricated small box girders for highway.

[0120] The placement method is the same as step (10), and the end point of the previous single-piece prefabricated highway small box girder is the starting point of the next single-piece prefabricated highway small box girder.

[0121] (12) Complete the overall assembly of the bridge box girder.

[0122] Based on the above-mentioned Bentley-based parametric modeling method for prefabricated small box girders for highways, an embodiment of the present invention further provides a computer-readable storage medium having a program stored thereon, which, when executed by a processor, implements the steps of the above-mentioned Bentley-based parametric modeling method for prefabricated small box girders for highways.

[0123] An embodiment of the present invention further provides a processor, which is used to run a program, wherein the program executes the steps of the above-mentioned Bentley-based parametric modeling method for prefabricated small box girders for highways when running.

[0124] An embodiment of the present invention also provides a terminal device, which includes a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program code is loaded and executed by the processor to implement the steps of the above-mentioned Bentley-based parametric modeling method for prefabricated small box girders for highways.

[0125] The present invention also provides a computer program product, which, when executed on a data processing device, is suitable for executing the steps of the above-mentioned Bentley-based parameterized modeling method for prefabricated small box girders for highways.

[0126] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0127] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and modules described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0128] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0129] The present invention is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products of the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0130] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0131] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0132] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0133] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0134] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0135] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0136] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0137] The above-mentioned method of the present invention, or a specific system unit, or a part of the same, is a pure software architecture, which can be arranged on a physical medium, such as a hard disk, an optical disk, or any electronic device (such as a smart phone, a computer-readable storage medium) through program code. When the machine loads the program code and executes it (such as a smart phone loading and executing it), the machine becomes a device for implementing the present invention. The above-mentioned method and device of the present invention can also be transmitted in the form of program code through some transmission media, such as cables, optical fibers, or any transmission mode. When the program code is received, loaded and executed by a machine (such as a smart phone), the machine becomes a device for implementing the present invention.

[0138] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. The parametric modeling method of prefabricated small box beam for highway based on Bentley is characterized by: include: (1) parameterizing a two-dimensional contour by means of primitives, wherein the primitives define two-dimensional parameterized primitives; (2) forming a three-dimensional parameterized component from the parameterized two-dimensional contour formed in step (1) by stretching and / or scanning; (3) The three-dimensional parametric component formed in step (2) is formed into a complex component or assembly by one or more operations of combination, intersection, arrangement, and transformation; (4) Using the component-to-body function to calculate between components using algorithms to form a combination of components; (5) The combined body formed in step (5) undergoes preliminary structural assembly and overall assembly to form an integrated bridge.

2. The parametric modeling method for prefabricated small box beams for highways based on Bentley according to claim 1 is characterized in that: In the step (1), the center position of the graphic element is defined, and then the graphic element is used to parameterize the two-dimensional contours of the middle box girder, the side box girder, the inner hollow oblique octagon, and the wet joint of the highway prefabricated small box girder.

3. The parametric modeling method for prefabricated small box beams for highways based on Bentley according to claim 1 is characterized in that: In the step (3), the relevant distance relationship between components is calculated based on the center position of each primitive, and then the components are formed into a complex component or assembly through one or more operations of combination, intersection, arrangement, and transformation.

4. The parametric modeling method for prefabricated small box beams for highways based on Bentley according to claim 1 is characterized in that: The step (5) is carried out according to the bridge route and pile number to form an integral bridge.

5. The parametric modeling method for prefabricated small box beams for highways based on Bentley according to claim 1 is characterized in that: The process of overall assembly of the prefabricated small box beam for highway in step (5) is as follows: 1) Adjust the position of the center point of the three-dimensional graphic element so that the center point of the graphic element of the highway prefabricated small box girder is located at the center point of the upper surface of the cross section. 2) Import the bridge route, route elevation, and pile number into Bentley software; 3) Place single-piece highway prefabricated small box girders according to the bridge route, route elevation, and pile number; 4) completing the placement of the remaining multiple single-piece highway prefabricated small box beams, wherein the end point of the previous single-piece highway prefabricated small box beam is the starting point of the next single-piece highway prefabricated small box beam; 5) Complete the overall assembly of the bridge box girder.

6. A computer-readable storage medium having a program stored thereon, characterized in that: When the program is executed by a processor, the steps of the Bentley-based parametric modeling method for prefabricated small box girders for highways described in any one of claims 1 to 5 are implemented.

7. A processor for running a program, characterized in that: When the program is running, the steps of the Bentley-based parametric modeling method for prefabricated small box girders for highways described in any one of claims 1 to 5 are executed.

8. A terminal device, comprising a processor, a memory, and a program stored in the memory and executable on the processor, characterized in that: The program code is loaded and executed by the processor to implement the steps of the Bentley-based parametric modeling method for prefabricated small box girders for highways described in any one of claims 1-5.

9. A computer program product, characterized in that When executed on a data processing device, it is suitable for executing the steps of the Bentley-based parametric modeling method for prefabricated small box girders for highways as described in any one of claims 1 to 5.

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