A bridge three-dimensional model construction method, device and equipment and a storage medium

Abstract

Embodiments of the present application provide a bridge three-dimensional model construction method, device and equipment and a storage medium, which comprises: obtaining construction information of a three-dimensional model of a target bridge; the construction information comprises bridge route information and bridge structure information; the bridge route information comprises a plurality of design reference lines, a plurality of three-dimensional design lines and a plurality of route data; the bridge structure information comprises at least one bridge structure pattern and pattern data corresponding to each bridge structure pattern; and a three-dimensional model of the target bridge is generated according to the construction information of the three-dimensional model of the target bridge. The construction speed of the bridge three-dimensional model is improved to a certain extent.

Description

Technical Field

[0001] This application relates to the field of bridge engineering, and more specifically, to a method, apparatus, equipment, and storage medium for constructing a three-dimensional model of a bridge. Background Technology

[0002] In the field of bridge engineering, 3D models are favored over 2D drawings because they offer greater advantages in expressing design intent, showcasing design effects, and guiding construction. Currently, in the design process of bridge 3D models, the calculation and modeling are still mainly done manually by designers. If design conditions change, designers must repeat the calculations and modeling, resulting in low efficiency in building bridge 3D models. Summary of the Invention

[0003] Therefore, it is necessary to propose a method, device, equipment, and storage medium for constructing a three-dimensional model of a bridge to address the above problems.

[0004] Firstly, a method for constructing a 3D model of a bridge is provided, including:

[0005] Obtain the construction information of the three-dimensional model of the target bridge; the construction information includes bridge route information and bridge structure information; the bridge route information includes multiple design reference lines, multiple three-dimensional design lines and multiple route data; the bridge structure information includes at least one bridge structure diagram, and diagram data corresponding to each bridge structure diagram;

[0006] The spatial location of the target bridge is determined based on the bridge route information, thus obtaining the target bridge with a determined spatial location.

[0007] Based on the bridge structure diagram, the target bridge with the spatial location is selected for bridge structure type to obtain the target bridge with the determined bridge structure type.

[0008] Based on the graphic data corresponding to the bridge structure graphic, the target bridge with the determined bridge structure type is processed to obtain a three-dimensional model of the target bridge.

[0009] The above-described method for constructing a 3D bridge model eliminates the need for designers to perform repetitive calculations and modeling. After obtaining the construction information for the 3D model of the target bridge, the spatial location of the target bridge is first determined, then the bridge structure is determined, and finally the graphic data corresponding to the bridge structure is determined to obtain the 3D model of the target bridge. This step-by-step method facilitates the construction of the 3D bridge model and improves its efficiency.

[0010] Optionally, determining the spatial location of the target bridge based on the bridge route information to obtain the target bridge with a determined spatial location includes:

[0011] Target route data is obtained from the bridge route information. Based on the target route data, a span arrangement and segmentation operation is performed on the target bridge to obtain the span arrangement and segmentation result of the target bridge. The span arrangement and segmentation result includes the theoretical span line of the target bridge, the position of each span in the target bridge, and the position of each segment in the target bridge.

[0012] From the multiple three-dimensional design lines and multiple design reference lines in the bridge route information, obtain the target three-dimensional design line and the first target design reference line, and generate the bridge elevation line of the target bridge based on the target three-dimensional design line, the first target design reference line and the target route data;

[0013] From the multiple design reference lines in the bridge route information, a second target design reference line and a third target design reference line are obtained. Based on the target route data, the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge, the bridge edge line of the target bridge is generated.

[0014] In the above implementation process, determining the spatial location of the target bridge based on the bridge route information requires obtaining target route data from the bridge route information. Based on the target route data, a span-and-connection operation is performed on the target bridge to obtain the span-and-connection result. Then, from the multiple 3D design lines and multiple design reference lines in the bridge route information, the target 3D design line and the first target design reference line are obtained. Based on the target 3D design line, the first target design reference line, and the target route data, the bridge elevation line of the target bridge is generated. Next, from the multiple design reference lines in the bridge route information, the second target design reference line and the third target design reference line are obtained. Based on the target route data, the target 3D design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge, the bridge edge line of the target bridge is generated. The spatial location of the target bridge, as a crucial factor affecting the structure of the bridge 3D model, is determined step by step. This not only facilitates the execution of subsequent model construction steps but also improves the accuracy of the bridge 3D model construction.

[0015] Optionally, the route data includes multiple route offset values;

[0016] Generate the bridge elevation line of the target bridge based on the target 3D design line, the first target design reference line, and the target route data, including:

[0017] Based on the target route data, a first target route offset value is obtained. Based on the first target route offset value, the target three-dimensional design line is horizontally offset and copied to obtain the bridge elevation line of the target bridge.

[0018] or,

[0019] The elevation of the target three-dimensional design line is mapped onto the first target design reference line to obtain the bridge elevation line of the target bridge.

[0020] In the above implementation process, there are two ways to determine the bridge elevation line of the target bridge. The first way is to obtain a first target route offset value based on the target route data, and then horizontally offset and copy the target 3D design line based on the first target route offset value to obtain the bridge elevation line of the target bridge. The second way is to map the elevation of the target 3D design line onto the first target design reference line to obtain the bridge elevation line of the target bridge. The bridge elevation line of the target bridge is an important factor affecting the construction result of the target bridge's 3D model. Correctly selecting the bridge elevation line of the target bridge using one of the methods in the above implementation process is beneficial to subsequent construction operations and can also improve the accuracy of the bridge 3D model construction.

[0021] Optionally, the route data includes multiple route cross slope values;

[0022] The step of generating the bridge edge line of the target bridge based on the target route data, the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge includes:

[0023] The second target route cross slope value is obtained based on the target route data. The bridge edge line of the target bridge is generated based on the second target route cross slope value, the target three-dimensional design line, and the bridge elevation line of the target bridge.

[0024] or,

[0025] The second target route cross slope value is obtained based on the target route data. The bridge edge line of the target bridge is generated based on the second target route cross slope value, the second target design reference line, the third target design reference line, the target three-dimensional design line, and the bridge elevation line of the target bridge.

[0026] In the above implementation process, there are two ways to determine the bridge elevation line of the target bridge. The first way is to obtain the cross slope value of the second target route based on the target route data, and generate the bridge edge line of the target bridge based on the cross slope value of the second target route and the bridge elevation line of the target bridge. The second way is to generate the bridge edge line of the target bridge based on the cross slope value of the second target route, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge. The bridge edge line of the target bridge is an important factor affecting the result of the 3D model construction of the target bridge. Correctly selecting the bridge edge line of the target bridge using one of the methods in the above implementation process is beneficial to subsequent construction operations and can also improve the accuracy of the 3D model construction of the bridge.

[0027] Optionally, the step of selecting a bridge structure type for a target bridge with a determined spatial location based on the bridge structure diagram, to obtain a target bridge with a determined bridge structure type, includes:

[0028] Obtain a first type of target general structure pattern from the bridge structure pattern, and obtain the target bridge determined by the first type of general structure based on the first type of target general structure pattern and the target bridge determined by the spatial location;

[0029] Obtain the target superstructure pattern from the bridge structure pattern, and obtain the target bridge with the determined superstructure based on the target superstructure pattern and the target bridge determined by the first type of general structure;

[0030] Obtain the target substructure diagram from the bridge structure diagram, and based on the target substructure diagram and the target bridge determined by the superstructure, obtain the target bridge with determined superstructure.

[0031] Obtain the second type of target general structure pattern from the bridge structure pattern, and obtain the target bridge with the bridge structure type determined according to the second type of target general structure pattern and the target bridge determined by the upper and lower structures.

[0032] In the above implementation process, the bridge structure selection for the target bridge with a determined spatial location is divided into four parts. First, a first-type general target structure selection is performed on the target bridge. Based on the first-type general target structure diagram and the target bridge with the determined spatial location, a target bridge with a first-type general structure is obtained. Next, the superstructure selection is performed on the target bridge. The target superstructure diagram is obtained from the bridge structure diagram. Based on the target superstructure diagram and the target bridge with the first-type general structure, a target bridge with a determined superstructure is obtained. Next, the substructure selection is performed on the target bridge with a determined superstructure. The target substructure diagram is obtained from the bridge structure diagram. Based on the target substructure diagram and the target bridge with a determined superstructure, a target bridge with a determined upper and lower structure is obtained. Finally, a second-type general target structure selection is performed on the target bridge with a determined upper and lower structure. The second-type general target structure diagram is obtained from the bridge structure diagram. Based on the second-type general target structure diagram and the target bridge with a determined upper and lower structure, a target bridge with a determined bridge structure type is obtained. Bridge selection is a crucial step in building a 3D bridge model, directly impacting the final output's visual quality. Selecting the right bridge structure can significantly improve the accuracy of the 3D bridge model.

[0033] Optionally, the step of processing the target bridge determined by the bridge structure type based on the graphic data corresponding to the bridge structure graphic to obtain a three-dimensional model of the target bridge includes:

[0034] From the pattern data corresponding to the bridge structure pattern, obtain the target superstructure pattern data corresponding to the target superstructure pattern, the first type of target general structure pattern data corresponding to the first type of target general structure pattern, and the second type of target general structure pattern data corresponding to the second type of target general structure pattern; based on the target superstructure pattern data, the first type of target general structure pattern data, the second type of target general structure pattern data, and the target bridge determined by the bridge structure type, obtain a three-dimensional model of the superstructure of the target bridge;

[0035] From the pattern data corresponding to the bridge structure pattern, obtain the target substructure pattern data corresponding to the target substructure pattern; based on the target substructure pattern data and the target bridge determined by the bridge structure type, obtain a three-dimensional model of the substructure of the target bridge.

[0036] In the above implementation process, from the graphic data corresponding to the bridge structure graphic, the target superstructure graphic data corresponding to the target superstructure graphic, the first type of target general structure graphic data corresponding to the first type of target general structure graphic, and the second type of target general structure graphic data corresponding to the second type of target general structure graphic are obtained; based on the target superstructure graphic data, the first type of target general structure graphic data, the second type of target general structure graphic data, and the target bridge determined by the bridge structure type, a three-dimensional model of the superstructure of the target bridge is obtained; from the graphic data corresponding to the bridge structure graphic, the target substructure graphic data corresponding to the target substructure graphic is obtained; based on the target substructure graphic data and the target bridge determined by the bridge structure type, a three-dimensional model of the substructure of the target bridge is obtained. The target bridge determined by the bridge structure type is processed to obtain the three-dimensional model of the target bridge, providing a construction model for bridge engineering operations.

[0037] Secondly, a bridge three-dimensional model construction device is provided, including:

[0038] The acquisition module is used to acquire the construction information of the three-dimensional model of the target bridge; the construction information includes bridge route information and bridge structure information; the bridge route information includes multiple design reference lines, multiple three-dimensional design lines and multiple route data; the bridge structure information includes at least one bridge structure diagram, and diagram data corresponding to each bridge structure diagram;

[0039] The construction module is used to determine the spatial location of the target bridge based on the bridge route information, thereby obtaining the target bridge with a determined spatial location.

[0040] The construction module is also used to select the bridge structure type of the target bridge with the determined spatial location based on the bridge structure diagram, so as to obtain the target bridge with the determined bridge structure type.

[0041] The construction module is also used to process the target bridge determined by the bridge structure type according to the graphic data corresponding to the bridge structure graphic, so as to obtain a three-dimensional model of the target bridge.

[0042] Optionally, the building module specifically comprises:

[0043] Target route data is obtained from the bridge route information. Based on the target route data, a span arrangement and segmentation operation is performed on the target bridge to obtain the span arrangement and segmentation result of the target bridge. The span arrangement and segmentation result includes the theoretical span line of the target bridge, the position of each span in the target bridge, and the position of each segment in the target bridge.

[0044] From the multiple three-dimensional design lines and multiple design reference lines in the bridge route information, obtain the target three-dimensional design line and the first target design reference line, and generate the bridge elevation line of the target bridge based on the target three-dimensional design line, the first target design reference line and the target route data;

[0045] From the multiple design reference lines in the bridge route information, a second target design reference line and a third target design reference line are obtained. Based on the target route data, the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge, the bridge edge line of the target bridge is generated.

[0046] Thirdly, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, it implements the steps of the bridge three-dimensional model construction method as described in the first aspect.

[0047] Fourthly, a computer-readable storage medium is provided, wherein computer program instructions are stored in the computer-readable storage medium, and the computer program instructions are read and executed by a processor to perform the steps of the bridge three-dimensional model construction method as described in the first aspect. Attached Figure Description

[0048] 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.

[0049] Figure 1 A flowchart illustrating the bridge 3D model construction method provided in this application embodiment;

[0050] Figure 2 for Figure 1 The flowchart of step S200 in the bridge 3D model construction method shown is as follows;

[0051] Figure 3 for Figure 1 The flowchart of step S300 in the bridge 3D model construction method shown is as follows;

[0052] Figure 4 for Figure 1 The flowchart of step S400 in the bridge 3D model construction method shown is as follows;

[0053] Figure 5A schematic diagram of the bridge three-dimensional model construction device provided in the embodiments of this application;

[0054] Figure 6 A schematic diagram of a computer device provided in an embodiment of this application.

[0055] Figure 7 This is a schematic diagram of the spanning and splitting results provided in an embodiment of this application. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] Please refer to Figure 1 , Figure 1 This is a flowchart illustrating a method for constructing a three-dimensional bridge model as disclosed in an embodiment of this application. The following is in conjunction with... Figure 1 The specific process and steps of a bridge three-dimensional model construction method provided in the embodiments of this application are described.

[0058] Step S100: Obtain the construction information of the three-dimensional model of the target bridge; the construction information includes bridge route information and bridge structure information; the bridge route information includes multiple design reference lines, multiple three-dimensional design lines and multiple route data; the bridge structure information includes at least one bridge structure pattern, and pattern data corresponding to each bridge structure pattern.

[0059] In this embodiment, the target bridge is the bridge to be constructed within the selected area; the design reference line is a line in the three-dimensional model of the bridge that helps determine the bridge's location and dimensions; the three-dimensional design line is a line in the three-dimensional model of the bridge that describes the bridge's orientation; the route data refers to the data required for constructing the three-dimensional model of the bridge, including but not limited to bridge design data, bridge design specifications, bridge technical standards, bridge design parameters, road width, road cross slope, chainage breaks, road segmentation type, surface elements, number of bridge connections, number of bridge spans, bridge span diameter, number of bridge openings, route offset value, bridge name, bridge starting station number, bridge ending station number, and bridge center station number; the bridge structural diagram is a diagram in the three-dimensional model representing the bridge structure, including the bridge superstructure diagram, the bridge substructure diagram, and the general bridge structural diagram, wherein the bridge superstructure diagram includes... This includes, but is not limited to, simply supported continuous T-beams, T-beams that are first simply supported and then continuous, simply supported continuous small box girders, simply supported continuous small box girders, simply supported continuous hollow slab beams, and simply supported continuous hollow slab beams; the substructure diagrams of bridges include, but are not limited to, column-mounted piers, vase-shaped piers, capped vase-shaped piers, and pile-column abutments; general bridge structural diagrams include, but are not limited to, expansion joint structures, bridge deck pavement structures, and guardrail structures; bridge deck pavement structures include, but are not limited to, those with waterproof asphalt concrete, those without waterproof asphalt concrete, waterproof concrete, and the diameter of the leveling layer reinforcement; guardrail structures include metal beam-column guardrails, concrete guardrails, corrugated beam guardrails, and cable guardrails; the graphic data corresponding to the bridge structural diagrams are the dimensional data corresponding to the bridge structural graphics, including but not limited to the width, height, length, shape, and thickness of the graphic structure.

[0060] Step S200: Determine the spatial location of the target bridge based on the bridge route information, and obtain the target bridge with the determined spatial location.

[0061] It should be noted that the spatial location of the target bridge includes, but is not limited to, the bridge's position, height, and width in the three-dimensional model structure.

[0062] In this embodiment of the application, it is necessary to first determine the spatial location of the target bridge before subsequent processing can be carried out.

[0063] Step S300: Based on the bridge structure diagram, select the bridge structure type for the target bridge whose spatial location is determined, and obtain the target bridge with a determined bridge structure type.

[0064] In this embodiment of the application, based on the bridge structure diagram, the target bridge with a determined spatial location is selected to obtain the target bridge with a determined bridge structure type, so as to proceed to the next step of processing.

[0065] Step S400: Based on the graphic data corresponding to the bridge structure graphic, process the target bridge whose bridge structure type is determined to obtain a three-dimensional model of the target bridge.

[0066] In this embodiment of the application, the target bridge, whose structural type is determined, is processed according to the graphic data corresponding to the bridge structural graphic to obtain a three-dimensional model of the target bridge.

[0067] The above-described method for constructing a 3D bridge model eliminates the need for designers to perform repetitive calculations and modeling. After obtaining the construction information for the 3D model of the target bridge, the spatial location of the target bridge is first determined, then the bridge structure is determined, and finally the graphic data corresponding to the bridge structure is determined to obtain the 3D model of the target bridge. This step-by-step method facilitates the construction of the 3D bridge model and improves its efficiency.

[0068] Furthermore, in this embodiment, step S200, as an optional implementation, may include steps S210, S220, and S230. For details of the steps, please refer to [link / reference needed]. Figure 2 .

[0069] Step S210: Obtain target route data from the bridge route information, and perform a span arrangement and connection operation on the target bridge according to the target route data to obtain the span arrangement and connection result of the target bridge; the span arrangement and connection result includes the theoretical span line of the target bridge, the position of each span in the target bridge, and the position of each connection in the target bridge.

[0070] It should be noted that the target route data refers to a route selected from multiple route data, and the target route data includes several data required for the construction of the bridge 3D model.

[0071] For example, inputting (35+60+50)+(35)+(6*30) will generate 11 theoretical span lines, with one span corresponding to two theoretical span lines. The first theoretical span is located at 0m, the second at 35m, the third at 95m, the fourth at 145m, the fifth at 180m, the sixth at 210m, the seventh at 240m, the eighth at 270m, the ninth at 300m, the tenth at 330m, and the eleventh at 360m. Furthermore, it can be seen that the first theoretical span and the second theoretical span... The first span is formed by the two theoretical span lines, located from 0 to 35m. The second and third theoretical span lines form the second span, located from 30m to 95m. The third and fourth theoretical span lines form the third span, located from 95m to 145m. The fourth and fifth theoretical span lines form the fourth span, located from 145m to 180m. The fifth and sixth theoretical span lines form the fifth span, located from 180m to 210m. The sixth and seventh theoretical span lines form the sixth span, located from 210m to 240m. The seventh theoretical span line and the eighth theoretical span line constitute the seventh span, located at 240m-270m; the eighth theoretical span line and the ninth theoretical span line constitute the eighth span, located at 270m-300m; the ninth theoretical span line and the tenth theoretical span line constitute the ninth span, located at 300m-330m; the tenth theoretical span line and the eleventh theoretical span line constitute the tenth span, located at 330m-360m; further, it can be known that the first span is located at 0m-145m; the second span is located at 145m-180m; and the third span is located at 180m-360m. For specific details, please refer to... Figure 7 .

[0072] Step S220: Obtain the target three-dimensional design line and the first target design reference line from the plurality of three-dimensional design lines and the plurality of design reference lines in the bridge route information, and generate the bridge elevation line of the target bridge based on the target three-dimensional design line, the first target design reference line and the target route data.

[0073] It should be noted that the target 3D design line is a single 3D design line selected from the plurality of 3D design lines, and this target 3D design line is used to describe the orientation of the target bridge. The first target design reference line is a design reference line selected from the plurality of design reference lines, used to assist in determining the position of the bridge elevation line of the target bridge.

[0074] Step S230: Obtain the second target design reference line and the third target design reference line from the plurality of design reference lines in the bridge route information, and generate the bridge edge line of the target bridge based on the target route data, the target three-dimensional design line, the second target design reference line, the third target design reference line and the bridge elevation line of the target bridge.

[0075] It should be noted that the second target design reference line and the third target design reference line are selected from the plurality of design reference lines and are used to help determine the bridge edge line of the target bridge.

[0076] In this embodiment, determining the spatial location of the target bridge based on the bridge route information requires obtaining target route data from the bridge route information. Based on the target route data, a span-and-connection operation is performed on the target bridge to obtain the span-and-connection result. Then, from the plurality of three-dimensional design lines and the plurality of design reference lines in the bridge route information, a target three-dimensional design line and a first target design reference line are obtained. Based on the target three-dimensional design line, the first target design reference line, and the target route data, the bridge elevation line of the target bridge is generated. Next, from the plurality of design reference lines in the bridge route information, a second target design reference line and a third target design reference line are obtained. Based on the target route data, the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge, the bridge edge line of the target bridge is generated. The spatial location of the target bridge, as a crucial factor affecting the structure of the bridge's three-dimensional model, is determined step by step. This not only facilitates the execution of subsequent model construction steps but also improves the accuracy of the bridge's three-dimensional model construction.

[0077] It should be noted that, in this embodiment, the route data includes multiple route offset values; for step S220, generating the bridge elevation line of the target bridge based on the target three-dimensional design line, the first target design reference line, and the target route data includes:

[0078] Based on the target route data, a first target route offset value is obtained. Based on the first target route offset value, the target three-dimensional design line is horizontally offset and copied to obtain the bridge elevation line of the target bridge.

[0079] The first target route offset value is an offset value selected from the target route data, used to determine the range of horizontal offset of the target three-dimensional design line during the process of obtaining the bridge elevation line of the target bridge.

[0080] In this embodiment of the application, a first target route offset value is first obtained from the target route data. Then, according to the value determined by the first target route offset value, the target three-dimensional design line is horizontally offset and copied. That is, according to the value determined by the first target route offset value, a target three-dimensional design line is copied, and the bridge elevation line of the target bridge can be obtained.

[0081] Alternatively, the elevation of the target three-dimensional design line can be mapped onto the first target design reference line to obtain the bridge elevation line of the target bridge.

[0082] In this embodiment of the application, the bridge elevation line of the target bridge can be obtained by mapping the elevation of the target three-dimensional design line onto the first target design reference line.

[0083] It should be noted that, specifically, the operation of mapping the elevation of the target 3D design line to the first target design reference line is as follows: First, set the sampling precision, which is the distance between points. Based on the sampling precision, take points on the first target design reference line according to the sampling precision to obtain the sampling points of the first target design reference line. Then, find the point closest to the sampling point of the first target design reference line on the target 3D design line to obtain the sampling point on the target 3D design line. Calculate the tangent vector of the sampling point on the target 3D design line, and use the sampling point on the target 3D design line as... Several Cartesian coordinate systems are constructed from the origin. The Y-axis of each Cartesian coordinate system is perpendicular to the ground and pointing upwards. The X-axis is perpendicular to and parallel to the tangent vector on the sampling point of the target three-dimensional design line, and points to the right side of the route. The XY plane formed by the X-axis and Y-axis of the Cartesian coordinate system is the road cross-section. A horizontal line is drawn through the origin of all the road cross-sections to obtain the horizontal line of the origin of all the road cross-sections. The sampling point of the first target design reference line is vertically projected onto the horizontal line of the origin of all the road cross-sections to obtain the projection point. The bridge elevation line of the target bridge is obtained by connecting the projection points.

[0084] In this embodiment, there are two ways to determine the bridge elevation line of the target bridge. The first way is to obtain a first target route offset value based on the target route data, and then horizontally offset and copy the target 3D design line based on the first target route offset value to obtain the bridge elevation line of the target bridge. The second way is to map the elevation of the target 3D design line onto the first target design reference line to obtain the bridge elevation line of the target bridge. The bridge elevation line of the target bridge is an important factor affecting the construction result of the 3D model of the target bridge. Correctly selecting the bridge elevation line of the target bridge using one of the methods described above is beneficial to subsequent construction operations and can also improve the accuracy of the bridge 3D model construction.

[0085] It should be noted that, in this embodiment, the route data includes multiple route offset values; for step S230, the bridge edge line of the target bridge is generated based on the target route data, the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge, including:

[0086] The cross slope value of the second target route is obtained based on the target route data. The bridge edge line of the target bridge is generated based on the cross slope value of the second target route, the target three-dimensional design line, and the bridge elevation line of the target bridge.

[0087] It should be noted that the second target route cross slope is a cross slope value selected from the target route data, used to determine the range of horizontal offset of the target three-dimensional design line during the process of obtaining the bridge edge line of the target bridge.

[0088] It should be noted that the second target route cross slope value is obtained based on the target route data. Then, based on the second target route cross slope value, the target three-dimensional design line, and the bridge elevation line of the target bridge, the bridge edge line of the target bridge is generated. Specifically:

[0089] Based on the cross slope value of the second target route, the target 3D design line is horizontally offset and copied to obtain a horizontal offset copy line. A sampling precision is set on the horizontal offset copy line, where the sampling precision is the distance between points. Sampling is performed on the horizontal offset copy line according to the sampling precision to obtain sampling points for the horizontal offset copy line. A series of points on the target 3D design line closest to the sampling points of the horizontal offset copy line are found. Based on this series of points on the target 3D design line, a road cross-section is constructed. The specific steps refer to the method for constructing a road cross-section in the bridge elevation line described above, and will not be repeated here. Based on the road width cross slope information in the target route data, and the intersection points of the road cross-sections at the sampling points of the horizontal offset copy line and the bridge elevation line of the target bridge, a road width slope line is obtained. The sampling points of the horizontal offset copy line are vertically projected onto the road width slope line to obtain the intersection points on the road width slope line. The intersection points on the road width slope line are then connected to form a line, thus obtaining the bridge edge line of the target bridge.

[0090] It should be noted that there are multiple road slope lines.

[0091] Alternatively, the bridge edge line of the target bridge can be generated based on the second target design reference line, the third target design reference line, the target three-dimensional design line, and the bridge elevation line of the target bridge; the bridge edge line includes the left side line and the right side line of the bridge.

[0092] It should be noted that the bridge edge line of the target bridge is generated based on the second target design reference line, the third target design reference line, the target three-dimensional design line, and the bridge elevation line of the target bridge, specifically as follows:

[0093] According to the sampling accuracy, sampling is performed on the second target reference line to obtain sampling points on the second target reference line; a series of points closest to the sampling points on the second target reference line are obtained on the target three-dimensional design line; a road cross section is constructed based on the series of points on the target three-dimensional design line; a slope line is constructed on the road cross section, and the sampling points on the second target reference line are vertically projected onto the slope line to obtain projection points; the projection points are connected to obtain the left side line of the bridge.

[0094] The third target reference line is processed in the same way as described above to obtain the right side line of the bridge.

[0095] In this embodiment, there are two ways to determine the bridge edge line of the target bridge. The first way is to obtain the cross slope value of the second target route based on the target route data, and generate the bridge edge line of the target bridge based on the cross slope value of the second target route and the bridge elevation line of the target bridge. The second way is to generate the bridge edge line of the target bridge based on the cross slope value of the second target route, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge. The bridge edge line of the target bridge is an important factor affecting the result of the 3D model construction of the target bridge. Correctly selecting the bridge edge line of the target bridge using one of the methods described above is beneficial to subsequent construction operations and can also improve the accuracy of the 3D model construction of the bridge.

[0096] Furthermore, in this embodiment, step S300, as an optional implementation, may include steps S310, S320, S330, and S340. For details of the steps, please refer to [link / reference needed]. Figure 3 .

[0097] Step S310: Obtain the first type of target general structure pattern from the bridge structure pattern, and obtain the target bridge determined by the first type of general structure based on the first type of target general structure pattern and the target bridge determined by the spatial location.

[0098] Step S320: Obtain the target superstructure pattern from the bridge structure pattern, and obtain the target bridge with the determined superstructure based on the target superstructure pattern and the target bridge determined by the first type of general structure.

[0099] It should be noted that the target superstructure pattern is one or more bridge superstructure patterns selected from the bridge structure patterns. Based on the target superstructure pattern, the superstructure pattern structure required for the target bridge determined by the first type of general structure is determined, and the target bridge with the determined superstructure is obtained.

[0100] Specifically, the location of each span of the target bridge can be determined from the target bridge identified by the first type of general structure; simultaneously, the bridge span type, i.e., the left and right spans, can be determined from the target route data; by selecting the superstructure diagram of each span of the left and right spans from the target superstructure diagram, the target bridge with a determined superstructure can be obtained. For example, the superstructure of the first span of the left span can be selected as a simply supported continuous T-beam.

[0101] It should be noted that the superstructure diagrams of each section of the left and right spans of the bridge can be the same or different.

[0102] Step S330: Obtain the target substructure diagram from the bridge structure diagram, and obtain the target bridge with determined upper and lower structures based on the target substructure diagram and the target bridge with determined upper structure.

[0103] It should be noted that the target substructure pattern is one or more bridge substructure patterns selected from the bridge structure patterns. Based on the target substructure pattern, the substructure pattern required for the target bridge with the determined superstructure is determined, thus obtaining the target bridge with the determined superstructure.

[0104] Specifically, the location of the theoretical span of the target bridge can be determined from the spatially located target bridge; simultaneously, the bridge span type (left and right spans) can be determined from the target route data; by selecting the substructure diagrams of the theoretical spans of the left and right spans from the target substructure diagrams, and processing the target bridge with the determined superstructure, the target bridge with the determined superstructure can be obtained. For example, the substructure of the bridge on the first theoretical span of the left span (the theoretical span obtained in step S210 above) can be selected as a column-mounted pier.

[0105] It should be noted that the substructure diagrams of the bridge on each theoretical span line in the left and right spans of the bridge can be the same or different.

[0106] Step S340: Obtain the second type of target general structure pattern from the bridge structure pattern, and obtain the target bridge with the bridge structure type determined according to the second type of target general structure pattern and the target bridge determined by the upper and lower structures.

[0107] It should be noted that the general structure selection includes the selection of a first type of target general structure pattern and a second type of target general structure pattern. The first type of target general structure pattern and the second type of target general structure pattern are multiple general bridge structure patterns selected from the bridge structure patterns. Based on the general bridge structure patterns, the required general structure of the target bridge with the determined upper and lower structures is determined, and the target bridge with the determined bridge structure type is obtained.

[0108] Specifically, determining the general structure of a bridge includes three parts. The first part is the selection of bridge expansion joints. Expansion joints are located at the junctions of upper sections of the bridge; at this stage, only the type of expansion joint between the upper sections of the target bridge is determined, and it is not reflected in the 3D model. Examples include filled expansion joints (concealed joints, exposed joints), steel plate expansion joints (sliding plate joints, toothed joints), rubber expansion joints, or combined expansion joints. The second part is the selection of the bridge deck pavement type, which includes waterproof asphalt concrete, non-waterproof asphalt concrete, and waterproof concrete. The asphalt type and thickness of each pavement layer are selected based on the pavement type. The third part is the selection of the bridge railing structure, specifically the structure of the left and right side railings, such as metal beam-column railings, concrete railings, corrugated beam railings, and cable railings.

[0109] In the above implementation process, the bridge structure selection for the target bridge with a determined spatial location is divided into four parts. First, a first-type general target structure selection is performed on the target bridge. Based on the first-type general target structure diagram and the target bridge with the determined spatial location, a target bridge with a first-type general structure is obtained. Next, the superstructure selection is performed on the target bridge. The target superstructure diagram is obtained from the bridge structure diagram. Based on the target superstructure diagram and the target bridge with the first-type general structure, a target bridge with a determined superstructure is obtained. Next, the substructure selection is performed on the target bridge with a determined superstructure. The target substructure diagram is obtained from the bridge structure diagram. Based on the target substructure diagram and the target bridge with a determined superstructure, a target bridge with a determined upper and lower structure is obtained. Finally, a second-type general target structure selection is performed on the target bridge with a determined upper and lower structure. The second-type general target structure diagram is obtained from the bridge structure diagram. Based on the second-type general target structure diagram and the target bridge with a determined upper and lower structure, a target bridge with a determined bridge structure type is obtained. Bridge selection is a crucial step in building a 3D bridge model, directly impacting the final output's visual quality. Selecting the right bridge structure can significantly improve the accuracy of the 3D bridge model.

[0110] Furthermore, in this embodiment, step S400, as an optional implementation, may include steps S410 and S420; for details, please refer to [link / reference needed]. Figure 4 .

[0111] Step S410: From the pattern data corresponding to the bridge structure pattern, obtain the target superstructure pattern data corresponding to the target superstructure pattern, the first type of target general structure pattern data corresponding to the first type of target general structure pattern, and the second type of target general structure pattern data corresponding to the second type of target general structure pattern; based on the target superstructure pattern data, the first type of target general structure pattern data, the second type of target general structure pattern data, and the target bridge determined by the bridge structure type, obtain a three-dimensional model of the superstructure of the target bridge.

[0112] In this embodiment, the bridge edge line of the target bridge has been determined in step S230, and the bridge width at the start and end points of each span of the target bridge is known. Furthermore, the superstructure pattern of each section of the target bridge has been determined in step S310. Based on the superstructure pattern, the beam-axis spacing parameters corresponding to the superstructure pattern can be obtained from the pattern data. The number of beam segments is calculated based on the bridge width at the start and end points of each span of the target bridge and the beam-axis spacing parameters, generating a beam layout line. This beam layout line is then projected onto the road slope surface in step S230. Online, the placement points of the bridge superstructure pattern are obtained according to the projection. Based on the placement points of the bridge superstructure pattern, the target superstructure pattern data, and the target bridge determined by the bridge structure class of the bridge superstructure pattern, the bridge superstructure pattern is placed. Then, based on the bridge deck pavement type and bridge railing structure determined in step S330, and based on the target general structure pattern data and the target bridge determined by the bridge structure type, the placement positions of the bridge deck pavement type and the bridge railing structure are determined. The bridge deck pavement structure and the bridge railing structure are placed to obtain the three-dimensional model of the superstructure of the target bridge.

[0113] Step S420: Obtain the target substructure pattern data corresponding to the target substructure pattern from the pattern data corresponding to the bridge structure pattern; obtain the three-dimensional model of the substructure of the target bridge based on the target substructure pattern data and the target bridge determined by the bridge structure type.

[0114] In this embodiment of the application, the theoretical span of the target bridge has been determined in the aforementioned step S210, which allows the determination of the placement point of the bridge substructure pattern. Based on the placement point of the bridge superstructure pattern determined in the aforementioned steps, the width data of the sub-cap beam is calculated. The placement point of the bridge substructure pattern is projected onto the terrain surface in the target route data to obtain the height data of the bridge substructure pattern. Based on the obtained sub-cap beam width data, bridge substructure pattern height data, bridge substructure pattern placement point, target substructure pattern data, and the target bridge determined by the bridge structure type, the bridge substructure pattern is placed to obtain a three-dimensional model of the substructure of the target bridge.

[0115] In the above implementation process, target superstructure pattern data corresponding to the target superstructure pattern and target general structure pattern data corresponding to the target general structure pattern are obtained from the pattern data corresponding to the bridge structure pattern. Based on the target superstructure pattern data, the target general structure pattern data, and the target bridge determined by the bridge structure type, a three-dimensional model of the target bridge's superstructure is obtained. Target substructure pattern data corresponding to the target substructure pattern is obtained from the pattern data corresponding to the bridge structure pattern. Based on the target substructure pattern data and the target bridge determined by the bridge structure type, a three-dimensional model of the target bridge's substructure is obtained. Processing the target bridge determined by the bridge structure type yields the three-dimensional model of the target bridge, providing a construction model for bridge engineering operations.

[0116] It should be noted that the embodiments of this application also include generating two-dimensional drawings of the target bridge based on the three-dimensional model of the target bridge.

[0117] In one embodiment, such as Figure 5 As shown, a bridge 3D model building device 50 is provided, which includes:

[0118] The acquisition module 501 is used to acquire the construction information of the three-dimensional model of the target bridge; the construction information includes bridge route information and bridge structure information; the bridge route information includes multiple design reference lines, multiple three-dimensional design lines and multiple route data; the bridge structure information includes at least one bridge structure pattern, and pattern data corresponding to each bridge structure pattern.

[0119] Construction module 502 is used to determine the spatial location of the target bridge based on the bridge route information, and construct the target bridge with the determined spatial location;

[0120] The construction module 502 is also used to select the bridge structure type of the target bridge with the determined spatial location based on the bridge structure diagram, and construct the target bridge with the determined bridge structure type.

[0121] The construction module 502 is further configured to process the target bridge whose bridge structure type is determined based on the graphic data corresponding to the bridge structure graphic, and construct a three-dimensional model of the target bridge.

[0122] Optionally, the construction module 502 is specifically used for:

[0123] Target route data is obtained from the bridge route information. Based on the target route data, a span arrangement and segmentation operation is performed on the target bridge to obtain the span arrangement and segmentation result of the target bridge. The span arrangement and segmentation result includes the theoretical span line of the target bridge, the position of each span in the target bridge, and the position of each segment in the target bridge.

[0124] From the multiple three-dimensional design lines and multiple design reference lines in the bridge route information, obtain the target three-dimensional design line and the first target design reference line, and generate the bridge elevation line of the target bridge based on the target three-dimensional design line, the first target design reference line and the target route data;

[0125] From the multiple design reference lines in the bridge route information, a second target design reference line and a third target design reference line are obtained. Based on the target route data, the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge, the bridge edge line of the target bridge is generated.

[0126] Optionally, the construction module 502 is specifically used for:

[0127] Based on the target route data, a first target route offset value is obtained. Based on the first target route offset value, the target three-dimensional design line is horizontally offset and copied to obtain the bridge elevation line of the target bridge.

[0128] or,

[0129] The elevation of the target three-dimensional design line is mapped onto the first target design reference line to obtain the bridge elevation line of the target bridge.

[0130] Optionally, the construction module 502 is specifically used for:

[0131] The second target route offset value is obtained based on the target route data. The bridge edge line of the target bridge is generated based on the second target route offset value, the target three-dimensional design line, and the bridge elevation line of the target bridge.

[0132] or,

[0133] The bridge edge line of the target bridge is generated based on the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge.

[0134] Optionally, the construction module 502 is specifically used for:

[0135] Obtain the target superstructure diagram from the bridge structure diagram, and obtain the target bridge with the determined superstructure based on the target superstructure diagram and the target bridge with the determined spatial location;

[0136] Obtain the target substructure diagram from the bridge structure diagram, and based on the target substructure diagram and the target bridge determined by the superstructure, obtain the target bridge with determined superstructure.

[0137] Obtain the target general structural pattern from the bridge structural pattern, and based on the target general structural pattern and the target bridge determined by the superstructure and superstructure, obtain the target bridge with the determined bridge structure type.

[0138] Optionally, the construction module 502 is specifically used for:

[0139] From the pattern data corresponding to the bridge structure pattern, obtain the target superstructure pattern data corresponding to the target superstructure pattern and the target general structure pattern data corresponding to the target general structure pattern; based on the target superstructure pattern data, the target general structure pattern data, and the target bridge determined by the bridge structure type, obtain a three-dimensional model of the superstructure of the target bridge;

[0140] From the pattern data corresponding to the bridge structure pattern, obtain the target substructure pattern data corresponding to the target substructure pattern; based on the target substructure pattern data and the target bridge determined by the bridge structure type, obtain a three-dimensional model of the substructure of the target bridge.

[0141] The above-described apparatus is used to execute the method provided in the foregoing embodiments, and its implementation principle and technical effect are the same.

[0142] In one embodiment, such as Figure 6 As shown, a computer device 60 is provided, which includes a memory 601 and a processor 602. The memory 601 and the processor 602 are connected via a bus 603. The memory 601 is used to store computer programs, and the processor 602 is used to call the computer programs stored in the memory 601 to execute the above-described method embodiments. The specific implementation and technical effects are the same, and will not be described again here.

[0143] In this embodiment of the application, a computer-readable storage medium is also provided, which stores computer program instructions. These computer program instructions are read and executed by a processor to perform the method embodiments described above. The specific implementation and technical effects are the same, and will not be repeated here.

[0144] 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 method for constructing a three-dimensional model of a bridge, characterized in that, include: Obtain the construction information of the three-dimensional model of the target bridge; The construction information includes bridge route information and bridge structure information; The bridge route information includes multiple design reference lines, multiple three-dimensional design lines, and multiple route data; the bridge structure information includes at least one bridge structure diagram, and diagram data corresponding to each bridge structure diagram. The spatial location of the target bridge is determined based on the bridge route information, thus obtaining the target bridge with a determined spatial location. Based on the bridge structure diagram, the target bridge with the spatial location is selected for bridge structure type to obtain the target bridge with the determined bridge structure type. Based on the graphic data corresponding to the bridge structure graphic, the target bridge with the determined bridge structure type is processed to obtain a three-dimensional model of the target bridge. The step of determining the spatial location of the target bridge based on the bridge route information to obtain the target bridge with a determined spatial location further includes: Target route data is obtained from the bridge route information. Based on the target route data, a span arrangement and segmentation operation is performed on the target bridge to obtain the span arrangement and segmentation result of the target bridge. The span arrangement and segmentation result includes the theoretical span line of the target bridge, the position of each span in the target bridge, and the position of each segment in the target bridge. From the multiple three-dimensional design lines and multiple design reference lines in the bridge route information, obtain the target three-dimensional design line and the first target design reference line, and generate the bridge elevation line of the target bridge based on the target three-dimensional design line, the first target design reference line and the target route data; The route data includes multiple route offset values; The step of generating the bridge elevation line of the target bridge based on the target three-dimensional design line, the first target design reference line, and the target route data includes: Based on the target route data, a first target route offset value is obtained. Based on the first target route offset value, the target three-dimensional design line is horizontally offset and copied to obtain the bridge elevation line of the target bridge. or, The elevation of the target three-dimensional design line is mapped onto the first target design reference line to obtain the bridge elevation line of the target bridge.

2. The method for constructing a three-dimensional bridge model as described in claim 1, characterized in that, The step of determining the spatial location of the target bridge based on the bridge route information to obtain the target bridge with a determined spatial location further includes: From the multiple design reference lines in the bridge route information, a second target design reference line and a third target design reference line are obtained. Based on the target route data, the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge, the bridge edge line of the target bridge is generated.

3. The method for constructing a three-dimensional bridge model as described in claim 2, characterized in that, The route data includes multiple cross slope values; The step of generating the bridge edge line of the target bridge based on the target route data, the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge includes: The cross slope value of the second target route is obtained based on the target route data. The bridge edge line of the target bridge is generated based on the cross slope value of the second target route, the target three-dimensional design line, and the bridge elevation line of the target bridge. or, The second target route cross slope value is obtained based on the target route data. The bridge edge line of the target bridge is generated based on the second target route cross slope value, the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge.

4. The method for constructing a three-dimensional bridge model as described in claim 1, characterized in that, The step of selecting a bridge structure type for a target bridge with a determined spatial location based on the bridge structure diagram, to obtain a target bridge with a determined bridge structure type, includes: Obtain a first type of target general structure pattern from the bridge structure pattern, and obtain the target bridge determined by the first type of general structure based on the first type of target general structure pattern and the target bridge determined by the spatial location; Obtain the target superstructure pattern from the bridge structure pattern, and obtain the target bridge with the determined superstructure based on the target superstructure pattern and the target bridge determined by the first type of general structure; Obtain the target substructure diagram from the bridge structure diagram, and based on the target substructure diagram and the target bridge determined by the superstructure, obtain the target bridge with determined superstructure. Obtain the second type of target general structure pattern from the bridge structure pattern, and obtain the target bridge with the bridge structure type determined according to the second type of target general structure pattern and the target bridge determined by the upper and lower structures.

5. The method for constructing a three-dimensional bridge model as described in claim 4, characterized in that, The step of processing the target bridge, whose structural type is determined, based on the graphic data corresponding to the bridge structural graphic to obtain a three-dimensional model of the target bridge includes: From the pattern data corresponding to the bridge structure pattern, obtain the target superstructure pattern data corresponding to the target superstructure pattern, the first type of target general structure pattern data corresponding to the first type of target general structure pattern, and the second type of target general structure pattern data corresponding to the second type of target general structure pattern; based on the target superstructure pattern data, the first type of target general structure pattern data, the second type of target general structure pattern data, and the target bridge determined by the bridge structure type, obtain a three-dimensional model of the superstructure of the target bridge; From the pattern data corresponding to the bridge structure pattern, obtain the target substructure pattern data corresponding to the target substructure pattern; based on the target substructure pattern data and the target bridge determined by the bridge structure type, obtain a three-dimensional model of the substructure of the target bridge.

6. A bridge three-dimensional model construction device, characterized in that, include: The acquisition module is used to acquire the construction information of the three-dimensional model of the target bridge; The construction information includes bridge route information and bridge structure information; The bridge route information includes multiple design reference lines, multiple three-dimensional design lines, and multiple route data; the bridge structure information includes at least one bridge structure diagram, and diagram data corresponding to each bridge structure diagram. The construction module is used to determine the spatial location of the target bridge based on the bridge route information, thereby obtaining the target bridge with a determined spatial location. The construction module is also used to select the bridge structure type of the target bridge with the determined spatial location based on the bridge structure diagram, so as to obtain the target bridge with the determined bridge structure type. The construction module is also used to select the bridge structure type of the target bridge with the determined spatial location based on the bridge structure diagram, so as to obtain the target bridge with the determined bridge structure type. The step of determining the spatial location of the target bridge based on the bridge route information to obtain the target bridge with a determined spatial location further includes: Target route data is obtained from the bridge route information. Based on the target route data, a span arrangement and segmentation operation is performed on the target bridge to obtain the span arrangement and segmentation result of the target bridge. The span arrangement and segmentation result includes the theoretical span line of the target bridge, the position of each span in the target bridge, and the position of each segment in the target bridge. From the multiple three-dimensional design lines and multiple design reference lines in the bridge route information, obtain the target three-dimensional design line and the first target design reference line, and generate the bridge elevation line of the target bridge based on the target three-dimensional design line, the first target design reference line and the target route data; The route data includes multiple route offset values; The step of generating the bridge elevation line of the target bridge based on the target three-dimensional design line, the first target design reference line, and the target route data includes: Based on the target route data, a first target route offset value is obtained. Based on the first target route offset value, the target three-dimensional design line is horizontally offset and copied to obtain the bridge elevation line of the target bridge. or, The elevation of the target three-dimensional design line is mapped onto the first target design reference line to obtain the bridge elevation line of the target bridge.

7. A bridge three-dimensional model construction device as described in claim 6, characterized in that, The specific building module is as follows: From the multiple design reference lines in the bridge route information, a second target design reference line and a third target design reference line are obtained. Based on the target route data, the target three-dimensional design line, the second target design reference line, the third target design reference line, and the bridge elevation line of the target bridge, the bridge edge line of the target bridge is generated.

8. A computer device, characterized in that, The method includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the bridge three-dimensional model construction method as described in any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer program instructions, which are read and executed by a processor to perform the steps of the bridge three-dimensional model construction method according to any one of claims 1 to 5.

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