Modeling method and device of double-pylon cable-stayed bridge, electronic equipment and storage medium

Abstract

The application provides a modeling method and device of a double-tower cable-stayed bridge, electronic equipment and a storage medium, and relates to the technical field of bridge information models. The modeling method of the double-tower cable-stayed bridge comprises the following steps: determining first arrangement parameters of cable pylons based on pile number information of a double-tower cable-stayed bridge to be constructed; determining second arrangement parameters of a main girder based on main girder structure parameters of the double-tower cable-stayed bridge to be constructed; determining third arrangement parameters of stay cables based on the first arrangement parameters and the second arrangement parameters; and constructing a three-dimensional model of the double-tower cable-stayed bridge to be constructed based on the first arrangement parameters, the second arrangement parameters and the third arrangement parameters. The method can solve the problems of a large number of design variables and a complex structure of the double-tower cable-stayed bridge.

Description

Technical Field

[0001] This application relates to the field of bridge information modeling technology, and more specifically, to a modeling method, apparatus, electronic device, and storage medium for a double-tower cable-stayed bridge. Background Technology

[0002] Currently, many BIM modeling software programs on the market have numerous inconveniences when applied to bridge engineering. To improve the efficiency of bridge structural modeling, some methods for creating conventional beam bridges have emerged. However, these methods have a narrow scope of application, only suitable for certain conventional beam bridge structures. For special bridge types such as cable-stayed bridges, due to the greater number of design variables and more complex structural forms, there is still no corresponding solution. Summary of the Invention

[0003] The purpose of this application is to provide a modeling method, device, electronic device and storage medium for double-tower cable-stayed bridges, so as to solve the problems of many design variables and complex structural forms when modeling double-tower cable-stayed bridges.

[0004] In a first aspect, embodiments of this application provide a modeling method for a double-tower cable-stayed bridge, comprising:

[0005] Based on the stationing information of the double-tower cable-stayed bridge to be constructed, the first arrangement parameters of the cable towers are determined;

[0006] Based on the main girder structural parameters of the double-tower cable-stayed bridge to be constructed, the second arrangement parameters of the main girder are determined.

[0007] Based on the first arrangement parameters and the second arrangement parameters, the third arrangement parameters of the cable are determined;

[0008] Based on the first arrangement parameters, the second arrangement parameters, and the third arrangement parameters, a three-dimensional model of the double-tower cable-stayed bridge to be constructed is constructed.

[0009] The modeling method for a double-tower cable-stayed bridge provided in this application adopts a highly parametric approach, determining the arrangement parameters of the towers, main beams, and cables respectively, making the model more standardized, improving modeling efficiency, and enabling quick parametric modification of the model.

[0010] In an optional implementation, the method further includes:

[0011] Based on the structural parameters of the cable tower, a family of cable tower parameterizations is constructed;

[0012] Based on the main beam truncation parameters and the main beam transverse diaphragm parameters, a parametric family of the main beam is constructed;

[0013] The process of constructing a three-dimensional model of the double-tower cable-stayed bridge to be constructed based on the first arrangement parameters, the second arrangement parameters, and the third arrangement parameters includes:

[0014] Based on the first arrangement parameters, the parametric family of the pylons, the parametric family of the main girder, the second arrangement parameters, and the third arrangement parameters, a three-dimensional model of the double-tower cable-stayed bridge to be constructed is constructed.

[0015] In the above implementation, parametric families for the tower and main beam are constructed separately. Constructing parametric families before modeling can improve the efficiency of modeling and the speed of modification.

[0016] In an optional implementation, constructing a three-dimensional model of the double-tower cable-stayed bridge to be constructed based on the first arrangement parameters, the pylon parametric family, the main girder parametric family, the second arrangement parameters, and the third arrangement parameters includes:

[0017] Based on the first arrangement parameters and the cable tower parameterization family, the cable tower model is determined;

[0018] The main beam model is determined based on the main beam parameter family and the second arrangement parameters;

[0019] Based on the tower model, the main beam model, and the third arrangement parameters, a three-dimensional model of the double-tower cable-stayed bridge to be constructed is constructed.

[0020] In the above implementation, the tower model and the main beam model are determined separately. Determining the tower model and the main beam model before modeling improves modeling efficiency and makes the model more standardized. This facilitates rapid modification and adaptation to the creation of special bridge models with similar structures.

[0021] In an optional implementation, before determining the first arrangement parameters of the pylons based on the stationing information of the double-tower cable-stayed bridge to be constructed, the method further includes:

[0022] Based on the route design data, the coordinate data of the centerline control points of the double-tower cable-stayed bridge to be constructed are determined and stored in a preset format;

[0023] Based on the coordinate data of the centerline control points, the station number information of the double-tower cable-stayed bridge to be constructed is determined.

[0024] In the above implementation method, the coordinates of the centerline control points are determined based on the route design data, thereby obtaining the stationing information of the double-tower cable-stayed bridge. This method can obtain accurately located stationing information for double-tower cable-stayed bridges, improving the accuracy of modeling.

[0025] In an optional implementation, the stationing information includes: the starting coordinates of the double-tower cable-stayed bridge to be constructed, the ending coordinates of the double-tower cable-stayed bridge to be constructed, and the stationing coordinates of the towers; the centerline control point coordinate data includes: the bridge center stationing, the main span length, and the side span length; determining the stationing information of the double-tower cable-stayed bridge to be constructed based on the centerline control point coordinate data includes:

[0026] Based on the bridge's center station number, the main span length, and the side span length, the starting coordinates, the ending coordinates, and the station number coordinates of the cable towers of the double-tower cable-stayed bridge to be constructed are determined.

[0027] In the above implementation method, the spatial location of the starting coordinates, the ending coordinates, and the station coordinates of the double-tower cable-stayed bridge can be automatically calculated, which reduces the workload of manual calculation and provides higher calculation accuracy and design accuracy, as well as more intuitive calculation results.

[0028] In an optional implementation, the cable towers include: a first cable tower and a second cable tower; determining the first arrangement parameters of the cable towers based on the stationing information of the double-tower cable-stayed bridge to be constructed includes:

[0029] Based on the station coordinates of the first tower and the station coordinates of the second tower, the midpoint coordinates of the top surface of the foundation of the first tower and the midpoint coordinates of the top surface of the foundation of the second tower are determined.

[0030] Based on the midpoint coordinates of the top surface of the foundation of the first cable tower and the midpoint coordinates of the top surface of the foundation of the second cable tower, the first arrangement parameters of the cable tower are determined.

[0031] In the above implementation, based on the station coordinates of the first and second cable towers, the layout parameters of the first and second cable towers can be automatically calculated, reducing the workload of manual calculation, and the calculation accuracy is higher and the calculation results are more accurate.

[0032] In an optional implementation, the main girder structural parameters include: pavement layer thickness parameters and main girder cut-off length parameters; determining the second arrangement parameters of the main girder based on the main girder structural parameters of the double-tower cable-stayed bridge to be constructed includes:

[0033] Based on the pavement thickness parameter and the main beam cut-off length parameter, calculate the coordinates of the first and last points of the main beam cut-off;

[0034] The coordinates of the first and last points of the main beam are grouped according to a preset format to obtain multiple tuples of the coordinates of the first and last points of the main beam.

[0035] The second arrangement parameters of the main beams are calculated based on the tuple of coordinates of the first and last points of the multiple main beam sections.

[0036] In the above implementation, the second arrangement parameters of the main beam can be automatically calculated based on the pavement thickness parameter and the main beam cut-off length parameter, which reduces the workload of manual calculation and improves modeling efficiency.

[0037] In an optional implementation, the cable includes: a cable anchor point, and determining the third arrangement parameter of the cable based on the first arrangement parameter and the second arrangement parameter includes:

[0038] Based on the first arrangement parameters, calculate the coordinate values ​​of the cable anchorage points on the tower;

[0039] Based on the second arrangement parameters, calculate the coordinate values ​​of the cable anchorage points on the main beam;

[0040] Based on the coordinate values ​​of the cable anchorage points on the tower and the cable anchorage points on the main beam, the third arrangement parameters of the cables are calculated.

[0041] In the above embodiments, the third arrangement parameter of the cable is calculated based on the first arrangement parameter and the second arrangement parameter, which can realize the batch modification and addition of the structural design parameters of the double-tower cable-stayed bridge, and facilitate the dynamic observation of the impact of bridge design parameter adjustment on the overall bridge design in a three-dimensional scene.

[0042] Secondly, embodiments of this application provide a modeling apparatus for a double-tower cable-stayed bridge, comprising:

[0043] The first determining module is used to determine the first arrangement parameters of the cable towers based on the stationing information of the double-tower cable-stayed bridge to be constructed.

[0044] The second determining module is used to determine the second arrangement parameters of the main beam based on the main beam structural parameters of the double-tower cable-stayed bridge to be constructed.

[0045] The third determining module is used to determine the third arrangement parameters of the cable based on the first arrangement parameters and the second arrangement parameters;

[0046] A construction module is used to construct a three-dimensional model of the double-tower cable-stayed bridge to be constructed based on the first arrangement parameters, the second arrangement parameters, and the third arrangement parameters.

[0047] Thirdly, embodiments of this application also provide an electronic device, which includes a memory and a processor. The memory stores program instructions, and when the processor reads and runs the program instructions, it executes the steps in any of the above implementation methods.

[0048] Fourthly, embodiments of this application also provide a storage medium, wherein the readable storage medium stores computer program instructions, which are read and executed by a processor to perform the steps in any of the above implementations. Attached Figure Description

[0049] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 A block diagram illustrating an electronic device provided in an embodiment of this application;

[0051] Figure 2 A flowchart illustrating the modeling method for a double-tower cable-stayed bridge provided in this application embodiment;

[0052] Figure 3 A detailed flowchart of step 230 of the modeling method for a double-tower cable-stayed bridge provided in this application embodiment;

[0053] Figure 4 A detailed flowchart of step 240 of the modeling method for a double-tower cable-stayed bridge provided in this application embodiment;

[0054] Figure 5 This is a schematic diagram of the functional modules of the modeling device for a double-tower cable-stayed bridge provided in the embodiments of this application. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0056] During the research process, the applicant discovered that Building Information Modeling (BIM) technology is developing rapidly in China and has been widely applied in the field of road engineering construction, with Revit being the most commonly used modeling software. Dynamo, as a secondary development platform based on Revit, uses a visual interface and programming approach to create BIM models with relatively complex shapes within Revit. Furthermore, Dynamo allows for deep interaction with Revit through programming, enabling batch manipulation of points, lines, and surfaces, and allowing for the free invocation of Revit component families to create and parametrically modify complex structures.

[0057] Many BIM modeling software programs on the market, including Revit, have numerous inconveniences when applied to bridge engineering. Conventional methods for creating beam bridges are suitable for high-speed railway bridges with fixed main girder forms and spans, resulting in a narrow scope of application. For special bridge types such as cable-stayed bridges, due to the greater number of design variables and more complex structural forms, there are still no corresponding solutions.

[0058] Based on this, embodiments of this application provide a modeling method for double-tower cable-stayed bridges, which can solve the model creation problem of special bridge types such as double-tower cable-stayed bridges, improve modeling efficiency and enable rapid parametric modification of the model, and is of great significance for the visualization and parametric design of special bridge types represented by cable-stayed bridges. The method provided by this application is described below through several embodiments.

[0059] To facilitate understanding of this embodiment, the electronic device or operating environment for implementing the modeling method for a double-tower cable-stayed bridge disclosed in this application embodiment will first be introduced.

[0060] Optionally, the electronic device 100 may be a smartphone, a personal computer (PC), a tablet computer, a personal digital assistant (PDA), a mobile Internet device (MID), etc.

[0061] like Figure 1 As shown, Figure 1 This is a block diagram of an electronic device provided in an embodiment of this application. The electronic device 100 may include a processor 110 and a memory 120. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the electronic device 100. For example, the electronic device 100 may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0062] The processor 110 and memory 120 described above are electrically connected to each other directly or indirectly to enable data transmission or interaction. For example, these components can be electrically connected to each other via one or more communication buses or signal lines. The processor 110 described above is used to execute executable modules stored in the memory.

[0063] The memory 120 may be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), etc. The memory 120 stores programs, and the processor 110 executes these programs upon receiving execution instructions. The methods executed by the electronic device 100 as defined in any embodiment of this application can be applied to the processor 110, or implemented by the processor 110.

[0064] The aforementioned processor 110 may be an integrated circuit chip with signal processing capabilities. The processor 110 may be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it may also be a digital signal processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor.

[0065] In this embodiment, the electronic device 100 may run a target application for modeling, which may be a modeling application.

[0066] The modeling application can be Revit, Dynamo, SkechersUp, Rhino, or 3ds Max, among others.

[0067] The Dynamo application is a visual programming tool. As a secondary development platform based on Revit, Dynamo uses a visual interface for programming, enabling the creation of complex Building Information Modeling (BIM) models within Revit. Dynamo also allows for deep interaction with Revit through programming, enabling batch manipulation of points, lines, and surfaces, and allowing for the free invocation of Revit component families to create and parametrically modify complex structures.

[0068] For example, Revit is one of the commonly used software programs for implementing Building Information Modeling (BIM) technology. It helps architects design, build, and maintain higher quality and more energy-efficient buildings.

[0069] The electronic device 100 in this embodiment can be used to execute various steps in the various methods provided in the embodiments of this application. The implementation process of the modeling method for a double-tower cable-stayed bridge is described in detail below through several embodiments.

[0070] This application provides a modeling method for a double-tower cable-stayed bridge. Please refer to [link / reference]. Figure 2 , Figure 2 A flowchart illustrating a modeling method for a double-tower cable-stayed bridge provided in an embodiment of this application is shown. The method may include the following steps:

[0071] Step 230: Based on the stationing information of the double-tower cable-stayed bridge to be constructed, determine the first arrangement parameters of the cable towers.

[0072] For example, a cable-stayed bridge is a type of bridge in which the main girder is directly attached to the towers by numerous cables. It is a structural system composed of compression-bearing towers, tension-bearing cables, and bending-bearing girder bodies. Cable-stayed bridges mainly consist of towers, main girder, and stay cables. Cable-stayed bridges can be single-tower, double-tower, or triple-tower types. This application provides a modeling method for a double-tower cable-stayed bridge.

[0073] For example, the cable tower can be a concrete structure, a steel-concrete composite structure, or a steel structure. For concrete cable towers or steel towers, beam elements can be used for simulation during overall calculation. For steel-concrete composite cable towers, if there are two materials at two nodes, they can be simulated by simultaneously creating steel elements and concrete elements.

[0074] For example, the stationing information of the double-tower cable-stayed bridge to be constructed may include: the starting coordinates of the double-tower cable-stayed bridge to be constructed, the ending coordinates of the double-tower cable-stayed bridge to be constructed, and the stationing coordinates of the towers.

[0075] For example, the first arrangement parameter may include: the position parameter of the tower and the orientation parameter of the tower.

[0076] For example, the location parameters of the pylon can be determined based on the station coordinates of the pylon, and the orientation parameters of the pylon can be determined based on the starting coordinates of the double-tower cable-stayed bridge to be constructed.

[0077] Step 240: Based on the main girder structural parameters of the double-tower cable-stayed bridge to be constructed, determine the second arrangement parameters of the main girder.

[0078] For example, the main beam structure can be a concrete structure, a steel structure, or a steel-concrete composite structure, and in terms of cross-sectional shape, it can be divided into closed cross-sections and open cross-sections. No specific restrictions are imposed here, and those skilled in the art can choose according to design requirements.

[0079] For example, when modeling the main beam, it is necessary to divide the main beam nodes. The division method of the main beam node elements is mainly related to the construction method of the main beam. Nodes need to be divided at locations such as beam joints, typical section locations, cable anchor points, joints of different materials, and construction joints.

[0080] For example, the main beam structural parameters may include: main beam truncated parameters and main beam diaphragm parameters.

[0081] For example, the second arrangement parameter may include: the position parameter of the main beam and the orientation parameter of the main beam.

[0082] For example, the position parameters and orientation parameters of the main beam can be determined based on the main beam truncated parameters and the main beam diaphragm parameters.

[0083] Step 250: Based on the first and second arrangement parameters, determine the third arrangement parameters of the cable.

[0084] For example, cables can be divided into two categories. For cable-stayed bridges with spans of nearly 1,000 meters or more, long cables exhibit significant nonlinear effects and can be simulated using cable elements or catenary elements. For cable-stayed bridge structures with medium to small spans, the simulation of their cables can be performed using equivalent truss elements modified by the Ernst formula, yielding sufficiently accurate results.

[0085] For example, the third arrangement parameter may include: the number of cables and the cable spacing, wherein the cable spacing may include: standard spacing, dense spacing and vertical spacing of cables.

[0086] For example, the number of cables and the cable spacing can be determined based on the location parameters of the tower, the orientation parameters of the tower, the location parameters of the main beam, and the orientation parameters of the main beam. In one instance, the position of the cable on the tower can be determined based on the position of the tower's apex, and the position of the cable on the main beam can be determined based on the position of the apex of the main beam at the tower.

[0087] Step 260: Based on the first arrangement parameters, the second arrangement parameters, and the third arrangement parameters, construct a three-dimensional model of the double-tower cable-stayed bridge to be constructed.

[0088] For example, the first arrangement parameters of the pylons, the second arrangement parameters of the main girder, and the third arrangement parameters of the cables are obtained, and the parametric families of the pylons, the main girder, and the cables are respectively placed and combined to form a 3D model of the double-tower cable-stayed bridge to be constructed. This highly parametric approach makes the model more standardized, improves modeling efficiency, and enables rapid parametric modification of the model. This is of great significance for the visualization and parametric design of special bridge types, such as cable-stayed bridges.

[0089] In an optional implementation, the modeling method for a double-tower cable-stayed bridge provided in this application further includes: constructing a family of cable tower parameterizations based on the cable tower structural parameters.

[0090] For example, the tower parameterization family includes: upper tower parameterization family, middle tower parameterization family, lower tower parameterization family, and tower base parameterization family.

[0091] Optionally, a parametric building family can be created based on Revit, defining the basic geometrical parameters of each type of component as family parameters. Cable tower structural parameters may include: upper tower column height, lower tower column height, upper part of the middle tower column, lower part of the middle tower column, base width, base length, top length, top width, base height, and foundation height. Building a parametric cable tower family based on these structural parameters can improve the efficiency of subsequent modeling and the speed of modifications. The process of creating a parametric family in Revit may include: studying the building characteristics, selecting a family template file, creating a standard component family, adding constraints at key locations, associating family parameters, and verification.

[0092] For example, the step of constructing the Sota parameter family can be performed before step 230, step 240, or step 260, without any specific limitation.

[0093] In an optional implementation, the modeling method for a double-tower cable-stayed bridge provided in this application further includes: constructing a parametric family of the main girder based on the main girder truncated parameters and the main girder diaphragm parameters.

[0094] For example, the main beam parametric family may include a main beam truncated parametric family and a main beam diaphragm parametric family.

[0095] In one example, the main beam section can be a π-shaped beam. The parameter family of the main beam of this π-shaped beam can include parameters such as: top plate thickness, section length, diaphragm thickness, diaphragm position, cross slope, beam rib width, beam width, haunch length, and center beam height.

[0096] Constructing a parametric family of main beams based on the main beam truncated parameters and main beam diaphragm parameters can improve the efficiency of subsequent modeling and the speed of modification.

[0097] Alternatively, a parametric family of main beams can be constructed using Revit.

[0098] For example, the step of constructing the main beam parameter family based on the main beam slit parameters and the main beam diaphragm parameters can be before step 230, before step 240, or before step 260. There are no specific restrictions here, as long as the initial main beam parameter family can be determined before using it.

[0099] In an optional implementation, step 260 may further include: constructing a three-dimensional model of the double-tower cable-stayed bridge to be constructed based on the first arrangement parameters, the pylon parameter family, the main girder parameter family, the second arrangement parameters, and the third arrangement parameters.

[0100] For example, the first arrangement parameter may include the position of the pylon, and the second arrangement parameter may include the position of each main girder. Using Dynamo to carry out related programming work, a three-dimensional model of the double-tower cable-stayed bridge to be built is constructed based on the first arrangement parameter, the pylon parameter family, the main girder parameter family, the second arrangement parameter, and the third arrangement parameter, which significantly improves the modeling efficiency.

[0101] In this embodiment, step 260 may include steps 261 to 263.

[0102] Step 261: Determine the cable tower model based on the first arrangement parameters and the cable tower parameter family.

[0103] Optionally, the target position of each pylon in the three-dimensional model of the double-tower cable-stayed bridge to be constructed can be determined based on the position parameters of each pylon in the first arrangement parameters, and the pylon model can be formed at the target position.

[0104] Step 262: Determine the main beam model based on the main beam parametric family and the second arrangement parameters.

[0105] Optionally, based on the parameter families of each main girder truncated section and each main girder diaphragm in the second arrangement parameters, the target positions of each main girder truncated section parameter family and each main girder diaphragm parameter family in the three-dimensional model of the double-tower cable-stayed bridge to be constructed can be determined, and the main girder model can be formed at the target positions.

[0106] Step 263: Based on the tower model, main beam model, and third arrangement parameters, construct a three-dimensional model of the double-tower cable-stayed bridge to be constructed.

[0107] For example, based on the tower model and main girder model, cables are set, and the number and spacing of the cables are dynamically adjusted to form a three-dimensional model of the double-tower cable-stayed bridge to be constructed. Determining the tower model and main girder model before modeling can improve modeling efficiency and facilitate rapid modification and adaptation to the creation of special bridge models with similar structures.

[0108] In an optional implementation, the modeling method for a double-tower cable-stayed bridge provided in this application further includes steps 210 and 220.

[0109] Step 210: Based on the route design data, determine the coordinate data of the centerline control points of the double-tower cable-stayed bridge to be constructed, and store them in a preset format;

[0110] For example, the route design data may include station numbers and route information. Based on the route design data, the X, Y, and Z coordinate data of the center control point of the double-tower cable-stayed bridge are compiled and stored in standard format data such as Excel or CSV in order from small station number to large station number.

[0111] Step 220: Determine the station number information of the double-tower cable-stayed bridge to be constructed based on the coordinate data of the centerline control points.

[0112] Specifically, the Dynamo application also includes a node package. Nodes are objects that are connected to the visualization program, and each node performs an operation. The node package can be provided by the system or created by someone skilled in the art as needed.

[0113] For example, coordinate values ​​stored in an Excel spreadsheet are read and fitted into a 3D route. The stationing information for the proposed double-tower cable-stayed bridge is then determined based on key coordinate points within the 3D route. This can be achieved using node packages in a Dynamo application. In one instance, the Data.ImportExcel node reads coordinate values ​​from an Excel spreadsheet and uses the NurbsCurve.ByPoints node to fit a 3D route. Key coordinate points on the 3D route include straight-line control points, circular curve control points, transition curve control points, bridge start point, bridge end point, and bridge center point. Based on the 3D route, the stationing information for the proposed double-tower cable-stayed bridge is determined.

[0114] In an optional implementation, the stationing information includes: the starting coordinates of the double-tower cable-stayed bridge to be constructed, the ending coordinates of the double-tower cable-stayed bridge to be constructed, and the stationing coordinates of the towers. The centerline control point coordinate data includes: the bridge center stationing, the main span length, and the side span length. Step 220 may include: determining the starting coordinates of the double-tower cable-stayed bridge to be constructed, the ending coordinates of the double-tower cable-stayed bridge to be constructed, and the stationing coordinates of the towers based on the bridge center stationing, the main span length, and the side span length.

[0115] For example, the starting station number of the double-tower cable-stayed bridge to be constructed is the difference between the bridge's center station number and half the length of the main span, and this difference is then added to the difference between the lengths of the side spans. Based on the starting station number, a plane perpendicular to the three-dimensional route is obtained at the corresponding station point on the three-dimensional route, and the intersection of the plane and the three-dimensional route is then obtained, which is the starting coordinate of the double-tower cable-stayed bridge to be constructed.

[0116] For example, the final station number of the double-tower cable-stayed bridge to be constructed is the sum of the bridge's center station number and half the length of the main span, and then the sum of this sum and the total length of the side spans. Based on the final station number, obtain the plane perpendicular to the route at the corresponding station point on the three-dimensional route, and then obtain the intersection point of the plane and the three-dimensional route, which is the final coordinate of the double-tower cable-stayed bridge to be constructed.

[0117] For example, the station number of the pylon is the difference or sum of the bridge center station number and half the length of the main span. Based on the pylon's station number, obtain the plane perpendicular to the three-dimensional route at the corresponding station point, and then obtain the intersection point of the plane and the three-dimensional route, which is the pylon's station coordinate.

[0118] In one example, the StationPlane node is used to obtain the plane perpendicular to the route at the corresponding station point on the 3D route, and the Geometry.Intersect node is used to obtain the intersection point of the plane and the route, which is the starting coordinates of the double-tower cable-stayed bridge to be constructed, the ending coordinates of the double-tower cable-stayed bridge to be constructed, and the station coordinates of the towers.

[0119] For example, based on the bridge's center station number, main span length, and side span length, the starting coordinates, ending coordinates, and station number coordinates of the pylons of the proposed double-tower cable-stayed bridge are determined. This method can obtain accurately located station number information for the double-tower cable-stayed bridge, improving the accuracy of modeling.

[0120] In an alternative implementation, the tower includes: a first tower and a second tower, such as Figure 3 As shown, Figure 3 The following is a detailed flowchart of step 230 of the modeling method for a double-tower cable-stayed bridge provided in the embodiments of this application. Step 230 may include steps 231 and 232.

[0121] Step 231: Based on the station coordinates of the first tower and the second tower, determine the midpoint coordinates of the top surface of the foundation of the first tower and the top surface of the foundation of the second tower.

[0122] For example, the station coordinates of the first tower can be the difference between the bridge center station and half the main span length, and the station coordinates of the second tower can be the sum of the bridge center station and half the main span length.

[0123] For example, the midpoint coordinates of the top surface of the first tower foundation and the midpoint coordinates of the top surface of the second tower foundation are calculated based on the midpoint coordinates of the top surface of the first tower foundation and the distance from the top surface of the second tower foundation to the bridge deck.

[0124] Step 232: Based on the midpoint coordinates of the top surface of the foundation of the first tower and the midpoint coordinates of the top surface of the foundation of the second tower, determine the first arrangement parameters of the tower.

[0125] For example, the coordinate system and the world coordinate system at the starting point of the bridge along the bridge direction are obtained, and the angle between the coordinate system and the world coordinate system along the bridge direction is calculated.

[0126] In one example, the TangentAndCoordinateSystem node can be used to obtain the coordinate system along the bridge direction at the bridge's starting point, the CoordinateSystem.ByOrigin node can be used to obtain the world coordinate system at the bridge's starting point, and the Vector.AngleWithVector node can be used to calculate the angle between the two coordinate systems.

[0127] For example, a parametric family of towers is placed with the center coordinates of the top surface of the tower foundation as a reference. The tower family is rotated according to the calculated angles of the two coordinate systems to place it along the bridge direction, thus determining the orientation parameters of the towers in the first arrangement parameters. Then, the parameters "upper tower column height" and "upper part height of middle tower column" are input to dynamically adjust the structural parameters of the first and second towers.

[0128] In one example, the parametric family of the towers can be placed using the StructuralFraming.ColumnByCurve node with the center coordinates of the top surface of the tower foundation as the reference. The tower family can be rotated using the FamilyInstance.SetRotation node according to the angle of the coordinate system so that it is placed along the bridge direction, thus determining the orientation parameter of the tower in the first arrangement parameter of the tower. The values ​​of the parameters "height of the upper tower column" and "height of the upper part of the middle tower column" can be input using the Element.GetParameterValueByName node to dynamically adjust the structural parameters of the first and second towers.

[0129] In an optional implementation, the main beam structural parameters include: pavement layer thickness parameters and main beam cross-sectional length parameters, such as... Figure 4 As shown, Figure 4 The following is a detailed flowchart of step 240 of the modeling method for a double-tower cable-stayed bridge provided in the embodiments of this application. Step 240 may include steps 241 and 243.

[0130] Step 241: Based on the pavement thickness parameters and the main beam cut-off length parameters, calculate the coordinates of the first and last points of the main beam cut-off.

[0131] For example, the coordinates of the first and last points of the main beam section are calculated using the Geometry.Intersect node based on the pavement thickness parameter and the main beam section length parameter.

[0132] Step 242: Group the coordinates of the first and last points of the main beam cut-off according to a preset format to obtain multiple tuples of the coordinates of the first and last points of the main beam cut-off.

[0133] For example, the coordinates of the first and last points of the main beam are grouped and the list is grouped in the format [(0,1)(1,2),(2,3).......(i,i+1)] (where i is a natural number), so that the coordinates of the first and last points of each cut are a tuple.

[0134] Step 243: Calculate the second arrangement parameters of the main beam based on the tuple of coordinates of the first and last points of the main beam cutoff.

[0135] For example, based on the tuples of coordinates of the first and last points of the main beam cutoff, the coordinates of the first and last points of the main beam cutoff are connected to obtain the center line of the main beam cutoff. The parametric family of the main beam is placed according to the center line of the main beam cutoff. The values ​​of the parameters of the center beam height, beam width, beam rib width, cross slope and diaphragm position are input, and the family parameters of the main beam are dynamically adjusted.

[0136] In one example, based on tuples of coordinates of the first and last points of multiple main beam cutoffs, the coordinates of the first and last points of the main beam cutoffs are connected using the PolyCurve.ByPoints node to obtain the cutoff centerline of the main beam. The StructuralFraming.BeamByCurve node is used to place the parametric family of the main beam according to the cutoff centerline of the main beam. The Element.SetParameterByName node is used to input the values ​​of parameters such as the center beam height, beam width, beam rib width, cross slope, and diaphragm position parameters, and the family parameters of the main beam are dynamically adjusted.

[0137] In an alternative implementation, the cable includes cable anchor points, such as Figure 4 As shown, Figure 4 The following is a detailed flowchart of step 250 of the modeling method for a double-tower cable-stayed bridge provided in the embodiments of this application. Step 250 may include steps 251 and 253.

[0138] Step 251: Based on the first arrangement parameters, calculate the coordinate values ​​of the cable anchorage points on the tower.

[0139] For example, the structural parameters of the cables may include: standard spacing, dense spacing, number of cables, number of dense spacing sections, net distance between upper tower columns, vertical spacing of cables, and length of the decorative section at the top of the tower.

[0140] For example, using the top of the tower as a reference, the coordinates of the anchor points of the cables on the tower are calculated based on the values ​​of the structural parameters of the cables.

[0141] Step 252: Based on the second arrangement parameters, calculate the coordinate values ​​of the cable anchorage points on the main beam.

[0142] For example, the structural parameters of the cable may also include: the length of the cable-free zone next to the tower, the length of the cable-free zone in the side span, and the length of the cable-free zone in the middle span.

[0143] For example, taking the top of the main beam at the tower as a reference, the coordinate values ​​of the cable anchorage points on the main beam are calculated based on the values ​​of the cable's structural parameters.

[0144] Step 253: Based on the coordinate values ​​of the cable anchorage points on the tower and the main beam, calculate the third arrangement parameters of the cables.

[0145] For example, the cable centerline is obtained by connecting the cable anchor points on the main beam and the cable anchor points on the tower. The cable centerline is converted into a family of steel wire cables, and a family of anchorages is placed at the cable anchor points to dynamically adjust the third arrangement parameters of the cables.

[0146] In one example, the cable centerline is obtained by connecting the cable anchor points on the main beam and the cable anchor points on the tower using the Line.ByStartPointEndPoint node. The cable centerline is converted into a family of steel wire cables using the Rebar.ByCurve node. Anchor families are placed at the cable anchor points. The third arrangement parameter of the cables is dynamically adjusted to perform parametric dynamic scheme design for the spacing and number of cables.

[0147] Based on the same concept, this application also provides a modeling device for a double-tower cable-stayed bridge corresponding to the modeling method for double-tower cable-stayed bridges. Since the principle of the device in this application is similar to that of the aforementioned modeling method for double-tower cable-stayed bridges, the implementation of the device in this application can refer to the description in the above-mentioned method embodiments, and the repeated parts will not be described again.

[0148] like Figure 5 As shown, Figure 5This is a functional module diagram of the modeling device for a double-tower cable-stayed bridge provided in this embodiment. Each module in the double-tower cable-stayed bridge modeling device 300 in this embodiment is used to execute the steps in the above method embodiments. The double-tower cable-stayed bridge modeling device 300 includes: a first determining module 310, a second determining module 320, a third determining module 330, and a construction module 340, wherein each module is shown below.

[0149] The first determining module 310 is used to determine the first arrangement parameters of the cable towers based on the stationing information of the double-tower cable-stayed bridge to be constructed.

[0150] The second determining module 320 is used to determine the second arrangement parameters of the main beam based on the main beam structural parameters of the double-tower cable-stayed bridge to be constructed.

[0151] The third determining module 330 is used to determine the third arrangement parameters of the cable based on the first arrangement parameters and the second arrangement parameters.

[0152] Module 340 is used to construct a three-dimensional model of the double-tower cable-stayed bridge to be constructed based on the first arrangement parameters, the second arrangement parameters, and the third arrangement parameters.

[0153] In an optional implementation, the above-described building module 340 is further configured to:

[0154] Based on the structural parameters of the cable tower, a family of cable tower parameterizations is constructed;

[0155] Based on the main beam truncation parameters and the main beam transverse diaphragm parameters, a parametric family of the main beam is constructed;

[0156] Based on the first arrangement parameters, the second arrangement parameters, and the third arrangement parameters, a three-dimensional model of the double-tower cable-stayed bridge to be constructed is built, including:

[0157] Based on the first arrangement parameters, the parametric family of the towers, the parametric family of the main beams, the second arrangement parameters, and the third arrangement parameters, a three-dimensional model of the double-tower cable-stayed bridge to be constructed is built.

[0158] In an optional implementation, the above-described building module 340 is further configured to:

[0159] Based on the first arrangement parameters and the cable tower parameter family, the cable tower model is determined;

[0160] The main beam model is determined based on the main beam parametric family and the second arrangement parameters;

[0161] Based on the tower model, main girder model, and third arrangement parameters, a three-dimensional model of the double-tower cable-stayed bridge to be constructed is generated.

[0162] In an optional implementation, the first determining module 310 described above is further configured to:

[0163] Based on the route design data, the coordinate data of the centerline control points of the double-tower cable-stayed bridge to be constructed are determined and stored in a preset format;

[0164] Based on the coordinate data of the centerline control points, the stationing information of the double-tower cable-stayed bridge to be constructed was determined.

[0165] In an optional implementation, the stationing information includes: the starting coordinates of the double-tower cable-stayed bridge to be constructed, the ending coordinates of the double-tower cable-stayed bridge to be constructed, and the stationing coordinates of the towers; the centerline control point coordinate data includes: the bridge center stationing, the main span length, and the side span length; the aforementioned first determining module 310 is further used for:

[0166] Based on the bridge's center station number, main span length, and side span length, the starting coordinates, ending coordinates, and station number coordinates of the double-tower cable-stayed bridge to be constructed are determined.

[0167] In an optional implementation, the tower includes: a first tower and a second tower, and the aforementioned first determining module 310 is further configured to:

[0168] Based on the station coordinates of the first tower and the second tower, the midpoint coordinates of the top surface of the foundation of the first tower and the midpoint coordinates of the top surface of the foundation of the second tower are determined.

[0169] Based on the midpoint coordinates of the top surface of the foundation of the first tower and the midpoint coordinates of the top surface of the foundation of the second tower, the first arrangement parameters of the tower are determined.

[0170] In an optional implementation, the main beam structural parameters include: pavement layer thickness parameters and main beam cut-off length parameters. The second determining module 320 described above is further used for:

[0171] Based on the pavement thickness parameters and the main beam cut-off length parameters, calculate the coordinates of the first and last points of the main beam cut-off;

[0172] The coordinates of the first and last points of the main beam are grouped according to a preset format to obtain multiple tuples of the coordinates of the first and last points of the main beam.

[0173] The second arrangement parameters of the main beam are calculated based on the tuple of coordinates of the first and last points of the main beam cutoff.

[0174] In an optional implementation, the cable includes: a cable anchor point, and the aforementioned third determining module 330 is further configured to:

[0175] Based on the first arrangement parameters, calculate the coordinate values ​​of the cable anchorage points on the tower;

[0176] Based on the second arrangement parameters, calculate the coordinate values ​​of the cable anchorage points on the main beam;

[0177] Based on the coordinate values ​​of the cable anchorage points on the tower and the main beam, the third arrangement parameters of the cables are calculated.

[0178] Furthermore, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of any of the methods described above.

[0179] The computer program product for a double-tower cable-stayed bridge provided in this application includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the steps of the modeling method for a double-tower cable-stayed bridge described in the above method embodiments. For details, please refer to the above method embodiments, which will not be repeated here.

[0180] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0181] In addition, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0182] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks. It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0183] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0184] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A modeling method for a double-tower cable-stayed bridge, characterized in that, include: Based on the stationing information of the double-tower cable-stayed bridge to be constructed, the first arrangement parameters of the cable towers are determined; Based on the main girder structural parameters of the double-tower cable-stayed bridge to be constructed, the second arrangement parameters of the main girder are determined. Based on the first arrangement parameters and the second arrangement parameters, the third arrangement parameters of the cable are determined; Based on the first arrangement parameters, the second arrangement parameters, and the third arrangement parameters, a three-dimensional model of the double-tower cable-stayed bridge to be constructed is constructed. Before determining the first arrangement parameters of the pylons based on the stationing information of the double-tower cable-stayed bridge to be constructed, the method further includes: Based on the route design data, the coordinate data of the centerline control points of the double-tower cable-stayed bridge to be constructed are determined and stored in a preset format; Based on the coordinate data of the centerline control points, the station number information of the double-tower cable-stayed bridge to be constructed is determined; The stationing information includes: the starting coordinates of the double-tower cable-stayed bridge to be constructed, the ending coordinates of the double-tower cable-stayed bridge to be constructed, and the stationing coordinates of the towers; the centerline control point coordinate data includes: the bridge center stationing, the main span length, and the side span length; determining the stationing information of the double-tower cable-stayed bridge to be constructed based on the centerline control point coordinate data includes: Based on the bridge center station number, the main span length, and the side span length, the starting coordinates, the ending coordinates, and the station number coordinates of the cable towers of the double-tower cable-stayed bridge to be constructed are determined. The cable towers include: a first cable tower and a second cable tower; the determination of the first arrangement parameters of the cable towers based on the stationing information of the double-tower cable-stayed bridge to be constructed includes: Based on the station coordinates of the first tower and the station coordinates of the second tower, the midpoint coordinates of the top surface of the foundation of the first tower and the midpoint coordinates of the top surface of the foundation of the second tower are determined. Based on the midpoint coordinates of the top surface of the foundation of the first cable tower and the midpoint coordinates of the top surface of the foundation of the second cable tower, the first arrangement parameters of the cable tower are determined.

2. The method according to claim 1, characterized in that, The method further includes: Based on the structural parameters of the cable tower, a family of cable tower parameterizations is constructed; Based on the main beam truncation parameters and the main beam transverse diaphragm parameters, a parametric family of the main beam is constructed; The process of constructing a three-dimensional model of the double-tower cable-stayed bridge to be constructed based on the first arrangement parameters, the second arrangement parameters, and the third arrangement parameters includes: Based on the first arrangement parameters, the parametric family of the pylons, the parametric family of the main girder, the second arrangement parameters, and the third arrangement parameters, a three-dimensional model of the double-tower cable-stayed bridge to be constructed is constructed.

3. The method according to claim 2, characterized in that, The construction of a three-dimensional model of the double-tower cable-stayed bridge to be constructed, based on the first arrangement parameters, the parametric family of the pylons, the parametric family of the main girder, the second arrangement parameters, and the third arrangement parameters, includes: Based on the first arrangement parameters and the cable tower parameterization family, the cable tower model is determined; The main beam model is determined based on the main beam parameter family and the second arrangement parameters; Based on the tower model, the main beam model, and the third arrangement parameters, a three-dimensional model of the double-tower cable-stayed bridge to be constructed is constructed.

4. The method according to claim 1, characterized in that, The main girder structural parameters include: pavement layer thickness parameters and main girder cut-off length parameters; the second arrangement parameters of the main girder, determined based on the main girder structural parameters of the double-tower cable-stayed bridge to be constructed, include: Based on the pavement thickness parameter and the main beam cut-off length parameter, calculate the coordinates of the first and last points of the main beam cut-off; The coordinates of the first and last points of the main beam are grouped according to a preset format to obtain multiple tuples of the coordinates of the first and last points of the main beam. The second arrangement parameters of the main beams are calculated based on the tuple of coordinates of the first and last points of the multiple main beam sections.

5. The method according to claim 1, characterized in that, The cable includes: cable anchor points; the determination of the third arrangement parameters of the cable based on the first arrangement parameters and the second arrangement parameters includes: Based on the first arrangement parameters, calculate the coordinate values ​​of the cable anchorage points on the tower; Based on the second arrangement parameters, calculate the coordinate values ​​of the cable anchorage points on the main beam; Based on the coordinate values ​​of the cable anchorage points on the tower and the cable anchorage points on the main beam, the third arrangement parameters of the cables are calculated.

6. A modeling device for a double-tower cable-stayed bridge, characterized in that, include: The first determining module is used to determine the first arrangement parameters of the cable towers based on the stationing information of the double-tower cable-stayed bridge to be constructed. The second determining module is used to determine the second arrangement parameters of the main beam based on the main beam structural parameters of the double-tower cable-stayed bridge to be constructed. The third determining module is used to determine the third arrangement parameters of the cable based on the first arrangement parameters and the second arrangement parameters; A construction module is used to construct a three-dimensional model of the double-tower cable-stayed bridge to be constructed based on the first arrangement parameters, the second arrangement parameters, and the third arrangement parameters. Specifically, the first determining module is used for: Based on the route design data, the coordinate data of the centerline control points of the double-tower cable-stayed bridge to be constructed are determined and stored in a preset format; Based on the coordinate data of the centerline control points, the station number information of the double-tower cable-stayed bridge to be constructed is determined; The stationing information includes: the starting coordinates of the double-tower cable-stayed bridge to be constructed, the ending coordinates of the double-tower cable-stayed bridge to be constructed, and the stationing coordinates of the towers; the centerline control point coordinate data includes: the bridge center stationing, the main span length, and the side span length. The first determining module is further configured to: Based on the bridge center station number, the main span length, and the side span length, the starting coordinates, the ending coordinates, and the station number coordinates of the cable towers of the double-tower cable-stayed bridge to be constructed are determined. The cable towers include: a first cable tower and a second cable tower; The first determining module is further configured to: Based on the station coordinates of the first tower and the station coordinates of the second tower, the midpoint coordinates of the top surface of the foundation of the first tower and the midpoint coordinates of the top surface of the foundation of the second tower are determined. Based on the midpoint coordinates of the top surface of the foundation of the first cable tower and the midpoint coordinates of the top surface of the foundation of the second cable tower, the first arrangement parameters of the cable tower are determined.

7. An electronic device, characterized in that, The electronic device includes a memory and a processor. The memory stores program instructions, and when the processor executes the program instructions, it performs the steps of the method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer program instructions that, when executed by a processor, perform the steps of the method according to any one of claims 1-5.

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