A method for calculating and analyzing landscape arch bridge and computer equipment

Abstract

The application discloses a kind of computing analysis method and computer equipment for landscape arch bridge, it is related to the field of bridge design, which comprises: identifying and constructing the bridge surface model of the landscape arch bridge, confirming the long side parameter and short side parameter of the bridge surface model;Input parameters are obtained, and the bridge plane model and stiffened plate model of the landscape arch bridge are constructed according to the long side parameter, the short side parameter and the input parameters;The support pile parameter of the landscape arch bridge is calculated according to the bridge plane model and the input parameters, and a support pile model is constructed;Confirm bridge calculation model, and the output parameter is calculated by the bridge calculation model;The input parameters are adjusted based on the output parameter, and the bridge calculation model is updated until the output parameter meets the preset condition.The application improves the accuracy and efficiency of bridge analysis and calculation process.

Description

Technical Field

[0001] This application relates to the technical field of bridge design, and in particular to a computational analysis method and computer equipment for landscape arch bridges. Background Technology

[0002] With the improvement of residents' living standards and the proposal of park cities, there are more and more park landscape projects at present, and landscape bridges have become one of the design focuses. For small and medium span landscape bridges, steel arch bridges are the main type, which have the advantages of reasonable structural stress, light weight, and beautiful appearance. With different railing styles, they can be well integrated into the surrounding landscape.

[0003] In related technologies, landscape arch bridges, due to their unique shape and structure, exhibit significant horizontal thrust under vertical loads. The bridge and foundation must work together to resist both horizontal and vertical forces. More precise calculation models are needed for analysis to ensure structural safety. However, this holistic, detailed modeling and analysis approach suffers from a large workload and low efficiency. Furthermore, failure to analyze and correct the design promptly after completion can affect the model's accuracy and the stability of the final product. Optimizing resource allocation safely, rationally, and economically is also a major challenge in the field of structural design.

[0004] This application proposes a computational analysis method and computer equipment for landscape arch bridges, which aims to solve the problems of high workload and low efficiency in the design process of landscape arch bridges in related technologies while ensuring accuracy. Summary of the Invention

[0005] The purpose of this application is to provide a computational analysis method and computer equipment for landscape arch bridges, which can effectively improve the accuracy and efficiency of bridge analysis and calculation processes.

[0006] To achieve the above objectives, this application provides the following solution:

[0007] In a first aspect, this application provides a computational analysis method for landscape arch bridges, the method comprising: identifying and constructing a bridge surface model of the landscape arch bridge, and confirming the long side parameters and short side parameters of the bridge surface model; obtaining input parameters, and constructing a bridge plan model and a stiffening plate model of the landscape arch bridge based on the long side parameters, the short side parameters, and the input parameters; calculating the support pile parameters of the landscape arch bridge based on the bridge plan model and the input parameters, and constructing a support pile model; confirming a bridge calculation model based on the bridge surface model, the bridge plan model, the stiffening plate model, and the support pile model, and calculating output parameters through the bridge calculation model; adjusting the input parameters based on the output parameters and updating the bridge calculation model until the output parameters meet preset conditions.

[0008] In some embodiments, the identifying and constructing the bridge surface model of the landscape arch bridge, and confirming the long side parameter and the short side parameter of the bridge surface model, comprises: identifying an upper surface of the bridge, and confirming a first long side and a first short side of the upper surface, wherein the long side parameter comprises three-dimensional space data of the first long side, and the short side parameter comprises three-dimensional space data of the first short side.

[0009] In some embodiments, the input parameter comprises a bridge thickness; and the acquiring the input parameter, and constructing the bridge plane model of the landscape arch bridge according to the long side parameter, the short side parameter and the input parameter, comprises: inputting the bridge thickness; moving the upper surface along a Z-axis direction of a three-dimensional coordinate system to obtain a lower surface of the bridge, and confirming a second long side and a second short side of the lower surface, wherein the long side parameter further comprises three-dimensional space data of the second long side, and the short side parameter comprises three-dimensional space data of the second short side; sweeping the first long side to the second long side to obtain a side plane of the bridge, and sweeping the first short side to the second short side to obtain an end plane of the bridge; and the bridge plane model comprises two end planes and two side planes.

[0010] In some embodiments, the input parameter further comprises a first interval distance of a longitudinal stiffening plate and a second interval distance of a transverse stiffening plate; and the acquiring the input parameter, and constructing the stiffening plate model of the landscape arch bridge according to the long side parameter, the short side parameter and the input parameter, comprises: inputting the first interval distance and the second interval distance; confirming a short side length of the first short side and the second short side based on end points of the first short side or the second short side, and confirming a long side length of the first long side and the second long side based on end points of the first long side or the second long side; calculating a number of longitudinal stiffening plates according to the short side length and the first interval distance, and calculating a number of transverse stiffening plates according to the long side length and the second interval distance; spacing and copying the side plane along a direction of the short side length based on the number of longitudinal stiffening plates to obtain a corresponding number of longitudinal stiffening plate planes, and spacing and copying the end plane along a direction of the long side based on the number of transverse stiffening plates to obtain a corresponding number of transverse stiffening plate planes; and assigning a cross-sectional thickness to the transverse stiffening plate planes and the longitudinal stiffening plate planes to obtain the stiffening plate model.

[0011] In some embodiments, the input parameters further include geometric parameters and material parameters of the support piles; and the calculation of the support pile parameters of the landscape arch bridge and the construction of the support pile model according to the bridge plane model and the input parameters include: obtaining the geometric parameters of the support piles, the geometric parameters including the number of piles, the pile spacing, the pile length, the pile diameter, and the number of pile segments; confirming the central coordinates of the end plane, the Z-axis coordinates of the pile top points of the support piles being the same as the central coordinates; confirming the pile top point coordinates of the support piles based on the geometric parameters and the central coordinates; confirming the pile bottom point coordinates of the support piles based on the geometric parameters and the pile top point coordinates; confirming the intermediate point coordinates of each intermediate point on the support piles based on the pile top point coordinates, the pile bottom point coordinates, and the geometric parameters; and obtaining the material parameters of the support piles, and constructing the support pile model of each of the support piles in combination with the geometric parameters, the pile top point coordinates, the pile bottom point coordinates, and the intermediate point coordinates.

[0012] In some embodiments, the material parameters include material grades, soil thicknesses, and horizontal resistance coefficients; and the obtaining of the material parameters of the support piles and the construction of the support pile model of each of the support piles in combination with the geometric parameters, the pile top point coordinates, the pile bottom point coordinates, and the intermediate point coordinates include: obtaining the material parameters, and confirming the three-dimensional coordinates of each node, wherein the nodes include the pile top points, the pile bottom points, and the intermediate points; calculating the soil spring stiffness of each node as an elastic constraint unit of the node based on the material parameters, the three-dimensional coordinates of the nodes, and the geometric parameters, the soil spring stiffness being calculated in the following manner:

[0013]

[0014] wherein, L z represents the pile length, V z represents the number of pile segments, D z represents the pile diameter, Z a1,1 represents the vertical depth of the node, m a1,1 represents the horizontal resistance coefficient of the node.

[0015] The pile calculation unit of the support piles is confirmed according to the geometric parameters and the three-dimensional coordinates of the nodes, the pile constraint unit of the support piles is confirmed according to the three-dimensional coordinates of the nodes, the elastic constraint unit, and the material grades, and the support pile model is obtained in combination with the pile calculation unit and the pile constraint unit.

[0016] In some embodiments, the output parameters include the maximum stress, the maximum vertical deformation, and the maximum horizontal displacement at the top of the pile, and the preset conditions include at least one of the following: the maximum stress is not greater than a preset stress value, the maximum vertical deformation is not greater than a preset deformation value, and the maximum horizontal displacement at the top of the pile is not greater than a preset displacement.

[0017] In a second aspect, the present application provides a computer device, comprising: a memory, a processor to store a computer program on the memory and run the computer program on the processor, and the processor executes the computer program to implement the steps of the calculation analysis method for landscape arch bridge according to any one of the above.

[0018] In a third aspect, the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the steps of the calculation analysis method for landscape arch bridge according to any one of the above.

[0019] In a fourth aspect, the present application provides a computer program product, comprising a computer program, and the computer program is executed by a processor to implement the steps of the calculation analysis method for landscape arch bridge according to any one of the above.

[0020] According to the specific embodiments provided by the present application, the following technical effects are disclosed:

[0021] The present application provides a calculation analysis method for landscape arch bridge and a computer device, which obtains a bridge plane model and a stiffened plate model by combining a bridge curved surface model with input parameters, and then obtains a support pile model and a bridge calculation model, so as to be used for calculation and output. In use, only the required input parameters need to be input in sequence according to the requirements, which is simple and convenient to use, can effectively improve the efficiency of calculation and analysis, and after obtaining the calculation model, the bridge calculation model can be verified by output parameters to update and adjust, thereby effectively guaranteeing the accuracy of the analysis and calculation process. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0023] Figure 1 The flow chart of the calculation analysis method for landscape arch bridge in the embodiments of the present application.

[0024] Figure 2 The schematic diagram of the arch bridge analysis model in the embodiments of the present application.

[0025] Figure 3 The split schematic diagram of the arch bridge analysis model in the embodiments of the present application.

[0026] Figure 4 The structural block diagram of the computer device in the embodiments of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0028] The above purposes, features and advantages of the present application will be more apparent and understandable. The present application will be described in further detail below with reference to the drawings and specific embodiments.

[0029] As Figure 1 shown, the embodiments of the present application provide a calculation analysis method for a landscape arch bridge. The bridge calculation model method comprises the following steps:

[0030] S110, identifying and constructing a bridge curved surface model of the landscape arch bridge, and confirming long side parameters and short side parameters of the bridge curved surface model.

[0031] S120, obtaining input parameters, and constructing a bridge plane model and a stiffened plate model of the landscape arch bridge according to the long side parameters, the short side parameters and the input parameters.

[0032] S130, calculating support pile parameters of the landscape arch bridge according to the bridge plane model and the input parameters, and constructing a support pile model.

[0033] S140, confirming a bridge calculation model based on the bridge curved surface model, the bridge plane model, the stiffened plate model and the support pile model, and calculating output parameters through the bridge calculation model.

[0034] S150, adjusting the input parameters based on the output parameters and updating the bridge calculation model until the output parameters meet a preset condition.

[0035] The calculation analysis method for the landscape arch bridge provided by the embodiments of the present application obtains the bridge plane model and the stiffened plate model through the bridge curved surface model combined with the input parameters, and then obtains the support pile model and the bridge calculation model, so as to be used for calculation and output. In use, only the required input parameters need to be input in sequence according to the requirements, and the use is simple and convenient. The efficiency of calculation and analysis can be effectively improved. After obtaining the calculation model, the bridge calculation model can be updated and adjusted through the output parameters, so as to effectively guarantee the accuracy of the analysis and calculation process.

[0036] As Figures 2-3 shown, for step S110, the process of confirming the long side parameters and the short side parameters is as follows:

[0037] The upper curved surface of the bridge is identified, and its first long side and first short side are confirmed. The long side parameter includes the three-dimensional spatial data of the first long side, and the short side parameter includes the three-dimensional spatial data of the first short side. The three-dimensional spatial data includes at least the three-dimensional coordinates of the upper endpoints of the long and short sides. In the three-dimensional coordinate system of this application embodiment, the length direction of the bridge is used as the X-axis, the width direction of the bridge is used as the Y-axis, and the height direction of the bridge is used as the Z-axis.

[0038] After identifying the upper surface, it is necessary to combine the upper surface to obtain the lower surface of the bridge. The input parameters include the bridge thickness. The above step S120 specifically includes:

[0039] S121, Input the bridge thickness.

[0040] S122. Move the upper surface along the Z-axis of the three-dimensional coordinate system to obtain the lower surface of the bridge. Confirm the second long side and the second short side of the lower surface. The long side parameter also includes the three-dimensional spatial data of the second long side, and the short side parameter includes the three-dimensional spatial data of the second short side.

[0041] S123. Sweep the first long side towards the second long side to obtain the side plane of the bridge, and sweep the first short side towards the second short side to obtain the end plane of the bridge. The bridge planar model includes two end planes and two side planes.

[0042] like Figure 3 As shown, the lower surface is obtained by copying the upper surface by moving it along the Z-axis. The first long side includes long side a1 and long side a2, and the second long side includes long side b1 and long side b2. The first and second long sides are symmetrically arranged, and their projections on the horizontal plane coincide. The first and second short sides are also symmetrically arranged, and their projections on the horizontal plane coincide. The side planes of the bridge include plane A1 and plane A2, and the end planes of the bridge include plane A3 and plane A4.

[0043] For example, the input parameters also include a first spacing distance of the longitudinal stiffening plates and a second spacing distance of the transverse stiffening plates. Specifically, step S120 further includes:

[0044] S124. Input the first interval distance and the second interval distance.

[0045] S125. Determine the length of the short side of the first short side and the second short side based on the endpoint of the first short side or the second short side, and determine the length of the long side of the first long side and the second long side based on the endpoint of the first long side or the second long side.

[0046] S126. Calculate the number of longitudinal stiffening plates based on the length of the short side and the first interval distance, and calculate the number of transverse stiffening plates based on the length of the long side and the second interval distance.

[0047] S127, based on the number of longitudinal stiffening plates, the side plane is spaced and copied along the direction of the short edge length to obtain a corresponding number of longitudinal stiffening plate planes, and based on the number of transverse stiffening plates, the end plane is spaced and copied along the direction of the long edge to obtain a corresponding number of transverse stiffening plate planes.

[0048] S128, the cross-sectional thickness of the transverse stiffening plate plane and the longitudinal stiffening plate plane is given to obtain a stiffening plate model.

[0049] As can be seen from the above steps, the transverse stiffening plate and the end plane correspond to each other, the longitudinal stiffening plate and the side plane correspond to each other, and by copying and translating the end plane and the side plane, a unified and uniformly spaced stiffening plate plane can be obtained, and the obtained stiffening plate plane is located inside the arch bridge.

[0050] Exemplarily, the end plane and the side plane can be moved along the Z-axis direction by a distance of the thickness of the bridge, and then copied and translated, so that the obtained stiffening plate plane is located below the arch bridge.

[0051] The input parameters also include the geometric parameters and material parameters of the support pile, and for the above step S130, specifically include:

[0052] S131, obtain the geometric parameters of the support pile, including the number of piles, pile spacing, pile length, pile diameter, and pile segmentation number.

[0053] S132, confirm the center coordinates of the end plane, and the Z-axis coordinates of the pile top point of the support pile are the same as the center coordinates.

[0054] S133, confirm the pile top point coordinates of the support pile based on the geometric parameters and the center coordinates.

[0055] S134, confirm the pile bottom point coordinates of the support pile based on the geometric parameters and the pile top point coordinates.

[0056] S135, confirm the intermediate point coordinates of each intermediate point on the support pile based on the pile top point coordinates, the pile bottom point coordinates and the geometric parameters.

[0057] S136, obtain the material parameters of the support pile, and construct a support pile model for each support pile in combination with the geometric parameters, the pile top point coordinates, the pile bottom point coordinates and the intermediate point coordinates.

[0058] Among them, the material parameters include material grade, soil thickness, and horizontal resistance coefficient. Obtain the above material parameters to confirm the three-dimensional coordinates of each node, wherein the nodes include the pile top point, the pile bottom point and the intermediate point.

[0059] Based on the material parameters, the three-dimensional coordinates of the nodes and the geometric parameters, the soil spring stiffness of each node is calculated as an elastic constraint unit of the node, and the soil spring stiffness is calculated as follows:

[0060] (1)

[0061] Among them, L z V represents the pile length. z D represents the number of pile segments. z Indicates the pile diameter, Z a1,1 The vertical depth of a node is represented by m. a1,1 This represents the horizontal resistance coefficient of the node.

[0062] The pile calculation elements for the support pile are determined based on the geometric parameters and the three-dimensional coordinates of the nodes. The pile constraint elements for the support pile are determined based on the three-dimensional coordinates of the nodes, the elastic constraint elements, and the material grade. The support pile model is obtained by combining the pile calculation elements and the pile constraint elements.

[0063] The pile calculation element represents the geometric data of all the aforementioned nodes, clearly defining the shape, size, and positional relationships of each support pile. The pile constraint element represents attribute data, including the calculated soil spring stiffness, soil thickness, and material grade. These constraints are applied to the support piles through material properties and stress analysis. Using both the pile calculation element and the pile constraint element, a complete support pile model can be obtained for subsequent calculations.

[0064] In some embodiments, the above-mentioned nodes also include each connection point in the bridge surface model, bridge planar model, and stiffening plate model mentioned above. Each connection point can also be constrained in the above manner so that the final bridge calculation model satisfies the material constraint conditions.

[0065] For example, when performing calculations using a bridge computational model, the output parameters obtained include maximum stress, maximum vertical deformation, and maximum horizontal displacement at the pile top. Preset conditions include at least one of the following: the output parameter is not greater than a preset stress value, the maximum vertical deformation does not exceed a preset deformation value, and the maximum horizontal displacement at the pile top does not exceed a preset displacement. The output parameters are primarily used to verify the accuracy of the model. If one or more output parameters do not meet the conditions, it indicates a deviation in the input parameters mentioned above, resulting in an inaccurate model. The input parameters need to be readjusted, and the calculation process repeated until the final output parameters meet the preset conditions.

[0066] The process of detecting and providing feedback through output parameters can continuously optimize the final bridge calculation model, making the calculation and analysis process more accurate and meeting the needs of actual use.

[0067] The following is combined Figure 2 and Figure 3 The method steps in the embodiments of this application are described in detail below:

[0068] 1. Identify the upper curved surface R1 in the landscape arch bridge, and obtain the first long side a1, a2 and the first short side a3, a4 of the curved surface.

[0069] 2. Input the bridge thickness h as an input parameter, where the bridge thickness refers to the thickness of the arch bridge part of the bridge.

[0070] 3. Move the upper curved surface R1 along the spatial direction vector (0, 0, -1) by a distance h to obtain the lower curved surface R2 of the lower flange of the bridge, and obtain the second long side b1, b2 and the second short side b3, b4 of the curved surface.

[0071] 4. Form the bridge side plane A1 by scanning from curve a1 to curve b1, form the bridge side plane A2 by scanning from curve a2 to curve b2, form the bridge end plane A3 by scanning from curve a3 to curve b3, and form the bridge end plane A4 by scanning from curve a4 to curve b4. At this point, the bridge curved surface model and the bridge plane model of the landscape arch bridge are confirmed.

[0072] 5. Input the first interval distance d1 of the longitudinal stiffener and the second interval distance d2 of the transverse stiffener as input parameters.

[0073] 6. Obtain the end point P1 of a3 at the end of curve a1, obtain the end point P2 of a3 at the end of curve a2, and obtain the length L of line a3 a3 , the number of longitudinal stiffeners n1 = Round (L a3 / d1). That is, the number of longitudinal stiffeners is determined by the length of the first short side and the first interval distance. When calculating the number of longitudinal stiffeners, the upward rounding method is adopted, for example, if the calculation result is 3.3, the number is 4.

[0074] 7. Copy the plane A1 along the direction from P1 to P2 n1 times with the first interval distance d1 to form a corresponding number of longitudinal stiffener planes U.

[0075] 8. Obtain the end point P3 of a1 at the end of curve a4, obtain the length L of line a1 a1 , and the number of transverse stiffeners n2 = Round (L a1 / d2);

[0076] 9. Copy the plane A3 along the curve direction from P1 to P3 n2 times with the second interval distance d2 to form the transverse stiffener plane G.

[0077] 10. Input the cross-sectional thickness, material grade, etc. of the curved surfaces R1, R2 and the planes A1, A2, A3, A4, U, G, and perform grid division on each curved surface and plane and assign the cross-sectional thickness and material grade attributes.

[0078] 11. Obtain the center D a of the plane A3, with coordinates (x a0y a0 ,z a0 ) of plane A4 b , whose coordinates are (x b0 ,y b0 ,z b0 ), where the center of plane A3 and plane A4 are the centroid of the plane respectively.

[0079] 12、Input the number of single piles N and the pile spacing as input parameters.

[0080] 13、Generate pile vertices with D a and D b as the center respectively, and the Z-axis coordinates of the pile vertices are consistent with D a and D b , and the generated pile vertices are {P at1 , P at2 , …, P atN} (single pile vertices) and {P bt1 , P bt2 , …, P btN} (pile vertices on the other side) respectively.

[0081] 14、Input the geometric parameters and material parameters of the support pile as input parameters, where the geometric parameters include pile length L z , pile diameter D z , and pile segmentation number V z , and the material parameters include pile material grade, soil thickness of each layer, and horizontal resistance coefficient.

[0082] 15、Select the pile vertex P at1 , move L z distance along the spatial direction vector (0, 0, -1) to generate the pile bottom point P ab1 , generate the V z equidistant points {P a1,1 , P a1,2 , …, P a1,Vz-1} between P at1 and P ab1 , whose Z coordinates are {z a1,1 , z a1,2 , …, z a1,Vz-1}, and according to the soil layer information, determine the soil horizontal resistance coefficient values corresponding to each Z coordinate as {m a1,1 , m a1,2 , …, m a1,Vz-1}.

[0083] 16、For point P a1,1 , calculate its soil spring stiffness according to formula (1) in the foregoing, and calculate the points {P a1,1 , Pa1,2 ,…, P a1,Vz-1} the soil spring stiffness is { K a1,1 , K a1,2 ,…, K a1,Vz-1} and elastic constraint units are established at each node with elastic stiffness properties { K a1,1 , K a1,2 ,…, K a1,Vz-1}.

[0084] 17. Connect P at1 , P a1,1 , P a1,2 ,…, P a1,Vz-1 , P ab1 in order from top to bottom along the vector (0, 0, -1) to form pile lines L a1,1 , L a1,2 ,…, L a1,Vz , and assign pile diameter D z , pile material grade properties to each pile line to form pile calculation units.

[0085] 18. Repeat the above steps to traverse all pile vertices {P at1 , P at2 , …, P atN} and {P bt1 , P bt2 , …, P btN} to form all pile calculation units and pile constraint units, wherein the pile constraint units include constraint units for each node on the support pile.

[0086] 19. Input the bridge deck calculation load, and use the application programming interface (API) of the analysis software to link the analysis software to automatically model, calculate and analyze the structure model (bridge surface model, bridge plane model, stiffened plate model and support pile model) generated by the above steps to obtain output parameters, including maximum stress S max , maximum vertical deformation D zmax , and maximum horizontal displacement D xymax of the pile top.

[0087] 20. Verify the output parameters to confirm whether they meet the preset conditions, and if not, the input parameters need to be adjusted and the above steps need to be repeated to obtain a new structure model.

[0088] When the maximum stress S max of the bridge exceeds the design limit (preset stress value), adjust the cross-sectional thickness, material grade and other parameters of the surfaces R1, R 2， , planes A1, A2, A3, A4, U and G, and repeat the above steps to obtain an updated maximum stress S maxUntil the design limit requirements are met.

[0089] When the maximum vertical deformation D of the bridge zmax When the deformation exceeds the design limit (preset deformation value), adjust the bridge thickness h and repeat the above steps to obtain the updated maximum vertical deformation D of the bridge. zmax Until the design limit requirements are met.

[0090] When the maximum horizontal displacement of the bridge pile top D xymax When the displacement exceeds the design limit (preset displacement), adjust the pile diameter D. z Alternatively, with N piles on one side, repeat the above steps to obtain the updated maximum horizontal displacement D at the top of the bridge piles. xymax Until the design limit requirements are met.

[0091] This application provides a computational analysis method for landscape arch bridges. It obtains a bridge planar model and a stiffening plate model by combining a bridge surface model with input parameters, and then further obtains a support pile model and a bridge computational model for calculation and output. In use, users only need to input the required parameters sequentially, making it simple and convenient to use and effectively improving the efficiency of computational analysis. After obtaining the computational model, the output parameters can be used to verify, update, and adjust the bridge computational model, effectively ensuring the accuracy of the analysis and calculation process.

[0092] like Figure 4 As shown, in one exemplary embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0093] In one exemplary embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0094] In one exemplary embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0095] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0096] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, the processes of the above-mentioned embodiments of the methods can be included. Any reference to a memory, a database or other medium used in the embodiments provided in the present application can include at least one of a non-volatile and a volatile memory. The non-volatile memory can include a read-only memory (ROM), a magnetic tape, a floppy disk, a flash memory, an optical storage, a high-density embedded non-volatile memory, a resistive random access memory (ReRAM), a magnetoresistive random access memory (MRAM), a ferroelectric random access memory (FRAM), a phase change memory (PCM), a graphene memory, etc. The volatile memory can include a random access memory (RAM) or an external cache memory, etc. As an illustration but not limitation, the RAM can be in various forms, such as a static random access memory (SRAM) or a dynamic random access memory (DRAM), etc.

[0097] The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a blockchain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0098] Any combination of the technical features of the above embodiments can be made, and in order to make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist, it should be considered as the scope of the present application.

[0099] The principles and implementation modes of the present application are described by applying specific examples in the present application, and the above-mentioned embodiments are only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In conclusion, the content of the present application should not be understood as a limitation.

Claims

1. A method for the computational analysis of landscape arch bridges, characterized in that, The calculation analysis method for the landscape arch bridge comprises: identifying and constructing a bridge curved surface model of the landscape arch bridge, and confirming long side parameters and short side parameters of the bridge curved surface model; obtaining input parameters, and constructing a bridge plane model and a stiffening plate model of the landscape arch bridge according to the long side parameters, the short side parameters and the input parameters, wherein the input parameters comprise geometric parameters and material parameters of support piles, and the material parameters comprise material grades, soil thicknesses and horizontal resistance coefficients; calculating support pile parameters of the landscape arch bridge according to the bridge plane model and the input parameters, and constructing a support pile model, comprising: obtaining geometric parameters of the support piles, wherein the geometric parameters comprise a pile number, a pile spacing, a pile length, a pile diameter and a pile segmentation number; confirming a central coordinate of an end plane, wherein a Z-axis coordinate of a pile top point of the support piles is the same as the central coordinate; confirming pile top point coordinates of the support piles based on the geometric parameters and the central coordinate; confirming pile bottom point coordinates of the support piles based on the geometric parameters and the pile top point coordinates; confirming intermediate point coordinates of each intermediate point on the support piles based on the pile top point coordinates, the pile bottom point coordinates and the geometric parameters; and obtaining material parameters of the support piles, and constructing a support pile model of each of the support piles in combination with the geometric parameters, the pile top point coordinates, the pile bottom point coordinates and the intermediate point coordinates; specifically comprising: obtaining the material parameters, and confirming three-dimensional coordinates of each node, wherein the nodes comprise the pile top points, the pile bottom points and the intermediate points; calculating soil spring stiffnesses of each of the nodes based on the material parameters, the three-dimensional coordinates of the nodes and the geometric parameters, so as to serve as elastic constraint units of the nodes, and the soil spring stiffnesses are calculated in the following manner: wherein L z represents the length of the pile, V z represents the number of pile segments, D z represents the diameter of the pile, Z a1,1 represents the vertical depth of the node, m a1,1 represents the horizontal resistance coefficient of the node; a pile calculation unit for confirming the support pile according to the geometric parameters and the three-dimensional coordinates of the node, a pile constraint unit for confirming the support pile according to the three-dimensional coordinates of the node, the elastic constraint unit and the material grade; and the support pile model is obtained by combining the pile calculation unit and the pile constraint unit. confirming a bridge calculation model based on the bridge curved surface model, the bridge plane model, the stiffening plate model and the support pile model, and obtaining output parameters through the bridge calculation model; adjusting the input parameters based on the output parameters, and updating the bridge calculation model until the output parameters meet preset conditions.

2. The method for the computational analysis of landscape arch bridges according to claim 1, characterized in that, The identification and construction of the bridge curved surface model of the landscape arch bridge, and the confirmation of the long side parameters and the short side parameters of the bridge curved surface model, comprise: identifying an upper curve of a bridge, and confirming a first long side and a first short side of the upper curve, wherein the long side parameters comprise three-dimensional space data of the first long side, and the short side parameters comprise three-dimensional space data of the first short side.

3. The method for the computational analysis of landscape arch bridges according to claim 2, characterized in that, The input parameters comprise a bridge thickness; and the obtaining of the input parameters, and the construction of the bridge plane model of the landscape arch bridge according to the long side parameters, the short side parameters and the input parameters, comprise: inputting the bridge thickness; moving the upper curve in a Z-axis direction of a three-dimensional coordinate system to obtain a lower curve of the bridge, confirming a second long side and a second short side of the lower curve, and the long side parameters further comprise three-dimensional space data of the second long side, and the short side parameters comprise three-dimensional space data of the second short side; and The first long side is swept towards the second long side to obtain the side plane of the bridge, and the first short side is swept towards the second short side to obtain the end plane of the bridge; the bridge plan model includes two end planes and two side planes.

4. The method for the computational analysis of landscape arch bridges according to claim 3, characterized in that, The input parameters also include a first spacing distance of the longitudinal stiffening plates and a second spacing distance of the transverse stiffening plates; the step of obtaining the input parameters and constructing the stiffening plate model of the landscape arch bridge based on the long side parameters, the short side parameters, and the input parameters includes: Input the first interval distance and the second interval distance; The lengths of the short sides of the first and second short sides are determined based on the endpoints of the first or second short sides, and the lengths of the long sides of the first and second long sides are determined based on the endpoints of the first or second long sides. The number of longitudinal stiffening plates is calculated based on the length of the short side and the first interval distance, and the number of transverse stiffening plates is calculated based on the length of the long side and the second interval distance. Based on the number of longitudinal stiffening plates, the side plane is copied at intervals along the direction of the short side length to obtain a corresponding number of longitudinal stiffening plate planes; based on the number of transverse stiffening plates, the end plane is copied at intervals along the direction of the long side to obtain a corresponding number of transverse stiffening plate planes. The cross-sectional thicknesses of the transverse stiffening plate plane and the longitudinal stiffening plate plane are assigned to obtain the stiffening plate model.

5. The method for the computational analysis of landscape arch bridges according to any of claims 1-4, characterized in that, The output parameters include maximum stress, maximum vertical deformation, and maximum horizontal displacement at the pile top, and the preset conditions include at least one of the following: The maximum stress is not greater than the preset stress value, the maximum vertical deformation is not greater than the preset deformation value, and the maximum horizontal displacement of the pile top is not greater than the preset displacement.

6. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that the processor executes the computer program to implement the computational analysis method for landscape arch bridges as described in any one of claims 1-5.

7. A computer-readable storage medium having stored thereon a computer program, characterized in that When executed by a processor, the computer program implements the computational analysis method for landscape arch bridges as described in any one of claims 1-5.

8. A computer program product comprising a computer program, characterized in that, When executed by a processor, the computer program implements the computational analysis method for landscape arch bridges as described in any one of claims 1-5.

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