CN115577428A - Method and system for three-dimensional forward design of municipal highway bridge - Google Patents

Abstract

The invention relates to the technical field of BIM design, in particular to a three-dimensional forward design method and a three-dimensional forward design system for a municipal highway bridge. The method comprises three stages: designing a bridge concept, namely creating a bridge concept object based on a three-dimensional road route, a road surface, a geophysical prospecting three-dimensional model and bridge initial data to complete the design of the bridge concept; the bridge overall design is realized by designing resources at a contour level, a characteristic level, a component level and multiplexing the resources on the basis of a resource library template on the basis of a bridge concept design result; the detailed design of the bridge is realized by inheriting the design information borne by the bridge on the basis of the overall design of the bridge, the granularity mapping and splitting of the component are realized, and the split component can be finely designed according to the design requirement, so that the detailed three-dimensional design of the bridge is completed. The invention can effectively improve the design efficiency of the bridge.

Description

Method and system for three-dimensional forward design of municipal highway bridge

Technical Field

The invention relates to the technical field of BIM design, in particular to a three-dimensional forward design method for a municipal highway bridge.

Background

The BIM (building information modeling) technology is widely used in developed areas such as Europe and America as a datamation tool applied to engineering construction management, and is also widely used in the domestic construction industry. The BIM technology has eight characteristics of information completeness, information relevance, information consistency, visualization, coordination, simulation, optimization and graphing performance, can carry out remote monitoring and information transmission on the whole construction condition of a construction site through an application platform, can enable constructors to optimize unreasonable places before construction, and avoids reworking waste after construction.

In specific application, for a special building design process of municipal bridge construction, which has high requirement precision, multiple structural components and high requirement for structural coordination, the conventional BIM modeling scheme is long in time consumption and high in technical requirement, and the digital modeling of each structural part of the bridge needs to be carried out by consuming time and manpower which are not less than those of drawing by a traditional method in the specific design process, so that the application efficiency of the BIM technology in the related bridge design and construction process is greatly influenced.

How to combine BIM technology with the municipal bridge construction scheme in common use, accomplish design and the modeling of municipal bridge BIM model more efficiently is the problem that the skilled person of this field dedicated to solve.

Disclosure of Invention

The invention aims to provide a three-dimensional forward design method of a municipal highway bridge aiming at the problems and defects of the existing bridge design business technology, and the method provides a three-dimensional design tool according to standardized design rules and by utilizing abundant component resource libraries, thereby realizing the multiplexing of design knowledge and experience, improving the standardization level of design, ensuring the design quality and improving the efficiency of the traditional design based on CAD (computer-aided design) plane diagrams. The three-dimensional model which is rapidly established in the three-dimensional design process expresses the design intention of a designer in a visual mode in real time, reduces design errors and modification, and improves the design efficiency of the municipal bridge.

The invention specifically adopts the following technical means:

a three-dimensional forward design method for a municipal highway bridge is characterized by comprising the following steps:

s1, designing a bridge concept: acquiring three-dimensional environment data and initial bridge data to generate a conceptual bridge design model;

s2, overall bridge design: extracting profile-level, feature-level, component-level and assembly-level data based on a resource library template, and multiplexing the data to produce a bridge overall design model;

s3: and (3) evaluating the rationality: extracting structural data in the bridge overall design model data to structural analysis software, and performing collision check and space rationality analysis among multiple specialties; if an unreasonable report is generated, the overall design of the bridge is modified or completed again;

s4, bridge detailed design: mapping and splitting the granularity of the component based on the overall design data of the bridge to generate single component data; inputting refined parameters and generating a detailed bridge design model.

Further, the bridge conceptual design, the bridge overall design and the bridge detailed design are based on a bridge design sketch outline template, a component template and an assembly template. The bridge design template depended on by the three stages realizes a matched definition method and provides a convenient definition, storage and use method.

Furthermore, the information and data related in the design stage are stored in customized features developed in a customized manner, the feature class keeps context association and automatic updating trigger setting in the system, cross-stage data association driving can be realized, and a flexible updating strategy is realized.

Further, the three-dimensional environment data comprises terrain data, route data, geological survey data, urban pipe network survey and design data and current building three-dimensional model data.

Further, the route data includes road center line data, road plane line data, and road boundary line data.

Further, the bridge concept design stage specifically includes the following steps:

acquiring three-dimensional environment data and creating a road route;

inputting the overall design parameters of the bridge and automatically establishing a new bridge object;

and inputting the distribution connection span data to carry out single and batch span distribution of the bridge and generate a bridge distribution connection span model.

Furthermore, the new bridge object is a three-dimensional model containing bridge horizontal and longitudinal line type information, bridge starting and ending point pile numbers, primary design information of upper and lower structure elevation systems such as a beam height and the like, and the lower structure elevation system takes the factors of road ultrahigh change, terrain and soil covering requirements into consideration.

Furthermore, the bridge spans individually and in batches, and the positions and angles of the spans are confirmed based on the interaction of the three-dimensional center lines.

Further, the single and batch span distribution of the bridge is carried out, and the method is characterized in that the bridge design object creates a distribution model based on distribution span data and establishes an expansion joint model related to the distribution model.

Further, the bridge distribution span model comprises bridge distribution object information, bridge distribution span identifier information, a bridge lower structure model and an expansion joint model.

Further, the overall bridge design comprises the following steps:

acquiring characteristic level data, and generating a bridge structure section based on a bridge distribution cross model; the cross section comprises form information and size parameters;

acquiring profile level data, and generating a bridge profile based on the road centerline object and the new bridge object; the new bridge object comprises superstructure occupancy information, substructure occupancy, and adjunct structure information;

and positioning the outline by an instantiation mode, and generating a feature level overall design model under unified part nodes.

Further, the positioning method comprises the following steps: positioning the upper structure of the new bridge by taking a space curved surface formed by the normal line of the central line of the road and the Z direction as a profile section of a reference; generating an orthogonal coordinate system of the substructure below the superstructure for positioning the substructure; the side line normal surfaces of the upper and lower structure structures are used as reference positioning auxiliary structures.

Further, the superstructure includes, but is not limited to, inner and outer boxes, beams, diaphragms, cantilever thickening and expansion joint notches; the lower structure comprises but is not limited to a cover beam, a vertical column, a table cap, a table body and a bearing platform pile foundation; the auxiliary structures include, but are not limited to, crash barriers, expansion joints, bridge deck pavement, supports, sidewalk boards, drainage systems, antiglare panels, and anti-drop nets.

Further, the rationality assessment comprises the following steps: and taking the three-dimensional structure model as a data source, and extracting data to space finite element analysis software to perform stress analysis. The collision check and clearance analysis can also be directly realized in the system. The content modified in the preorder stage can be automatically transferred to a subsequent design object, and the automatic updating of the structural design result can be ensured under the condition of reasonable modification.

Further, the detailed bridge design comprises the following steps:

splitting the bridge overall design model to obtain split data, and importing the split data into a PLM management object;

and inputting component parameter information or calling standard component library data to produce the detailed bridge construction model.

Further, the three-dimensional forward design method for the municipal highway bridge further comprises the following steps:

associating the context data such that each parameter is stored and associated in the database and the model;

and setting a context trigger, and when a certain parameter is changed, realizing cross-phase data association driving by other parameters.

Specifically, the current input characteristic of each stored data is locked, the input characteristic of the data in the current context process is subjected to parameter interruption, and parameter input and geometric topology operation are stored. Each custom feature comprises a custom feature Interface (Interface) and a custom feature implementation (implementation) method. The interface defines the input, operation and output interface with self-defined characteristics, and in the implementation process, besides the implementation of the specific input and output interface, the new topology expansion establishment, updating, deletion and topology change reporting method, icon and double-click response are implemented. Therefore, each custom feature can realize automatic triggering updating operation after detecting other parameter changes as input.

Further, the context data includes routing data, conceptual design placeholder model data, general design outline model data, and detailed design subentry model data.

In addition, the invention also provides a three-dimensional forward design system of the municipal highway bridge, which is characterized by comprising the following components:

the bridge conceptual design module is used for generating a bridge conceptual design model by acquiring three-dimensional environment data and bridge initial data;

the bridge overall design module extracts data of a contour level, a characteristic level, a component level and a component level based on the resource library template and reuses the data to produce a bridge overall design model;

the reasonability evaluation module is used for extracting structural data in the bridge overall design model data to structural analysis software for stress analysis, and performing collision check and space reasonability analysis among multiple specialties; if an unreasonable report is generated, the overall design of the bridge is modified or completed again;

the bridge detailed design module is used for mapping and splitting the granularity of the component based on the overall bridge design data to generate single component data; and inputting refined parameters and generating a detailed bridge design model.

Further, the three-dimensional forward design system of town road bridge still includes:

a context data association unit for storing and associating each data of the database and the model;

and the context trigger unit is used for realizing cross-phase data association driving of other parameters.

An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the steps of the method for three-dimensional forward design of a municipal highway bridge.

A non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method for three-dimensional forward design of a municipal highway bridge.

Compared with the prior art, the invention has the following beneficial effects:

the method is adopted to define a multi-stage design flow; the design process is divided into three main stages of conceptual design, overall design and detailed design from simplicity to detail; for design service data and results, unified resource library in and out library management is carried out, rapid assembly positioning is realized by combining a three-dimensional design space, and design resource storage and sharing are realized; in the design process, an automatic updating trigger is set in the object creation interface through the context logic reference relationship, so that the whole data driving updating is realized, and the design efficiency is improved; the method comprises the steps of respectively introducing a route, a bridge, a branch span and an occupation of an upper lower structure in three stages, and realizing the customized development and management of full-light custom characteristics by using a cast-in-place box girder, a precast beam, a bent cap, a pier stud, a bearing platform, a pile foundation, an inner cavity, an outer cavity, a notch and a beam characteristic object.

Drawings

FIG. 1 is a flow chart of a method for three-dimensional forward design of a municipal highway bridge of the invention.

FIG. 2 is an illustration of a three-dimensional basic design environment of the present invention.

FIG. 3 is a three-stage design and content description diagram of the present invention.

FIG. 4 is a diagram illustrating context association and triggers in the present invention.

FIG. 5 is an illustration of the design of the end design ridge and cross-sectional layout of the present invention.

FIG. 6 is an illustration of the interaction flow of component library resource design in the present invention.

FIG. 7 is a top and bottom structure customized feature refinement and split explanatory diagram in the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The invention aims to provide a three-dimensional forward design method and a three-dimensional forward design system for a municipal highway bridge, which utilize abundant component resource libraries according to standardized design rules to provide a three-dimensional design tool, realize the multiplexing of design knowledge and experience, improve the standardization level of design, ensure the design quality and improve the efficiency of the traditional CAD-based plan design.

A method and a system for three-dimensional forward design of a municipal highway bridge are disclosed, wherein the method flow is shown in the attached figure 1.

The method comprises the following steps: three-dimensional environment data is prepared, and a road route is created. As shown in fig. 2. And preparing environment data and road data necessary for design, and providing basis and early-stage data for the design of the bridge. And performing space curve fitting based on the horizontal curve HCurve and the vertical curve VCurve to form a three-dimensional centerline topological object. The three-dimensional environment data comprises three-dimensional model data which influences bridge design, such as terrain data, geological survey data, urban pipe network survey and design data, current buildings and other reserved design structures.

Step two: and inputting the total design parameters of the bridge through an interface to automatically establish a bridge design object. According to the requirements of bridge construction, primary design parameters of the bridge are preliminarily determined, wherein the primary design parameters comprise bridge horizontal and longitudinal line type information, bridge starting and finishing point pile numbers, and upper and lower structure elevation systems. The bridge concept design is characterized in that bridge overall occupation, span division, substructure occupation and combined occupation model objects are introduced, a flat longitudinal curve topological operation and a vector operation are used, a bridge three-dimensional object is rapidly established based on a terrain triangular mesh surface and a space three-dimensional curve, and then bridge span distribution is carried out based on a flat curve topological operation method. The determination of the bridge design parameters is influenced by environmental factors, for example, the height of the top of the bearing platform can be determined by the terrain and the soil covering depth.

Step three: and carrying out single and batch span distribution and batch division design on the bridge. And inputting the data of the step-by-step connection through an interface, and performing single and batch span-by-step connection distribution design based on the bridge design object newly built in the step two. The method is characterized in that the cloth span position is determined based on interactive selection of the three-dimensional central line, and the method mainly comprises the modes of pier position arrangement control, interval batch arrangement and interactive mouse dragging of the cloth piers, so that a user can conveniently perform the cloth pier operation in the three-dimensional space. The result after the span distribution and the division connection comprises the contents of bridge division connection objects, bridge division identifiers, bridge substructure initialization models, expansion joint initialization models and the like. The design tool and the visualization tool provided by the invention can interactively drag or delete the existing distribution and connection span results, thereby realizing the design modification of the bridge distribution and connection span.

Step four: the overall design of the upper part, the lower part and the auxiliary structure of the bridge is developed. The method comprises the steps of developing bridge structure section design according to a three-dimensional model of bridge span division, performing form selection and parameter determination of a section template based on an existing characteristic model, arranging section examples to corresponding spatial positions, forming a total three-dimensional design result of a bridge structure by combining with a spatial guide line, and storing the total three-dimensional design result in a part product. Firstly, introducing a contour feature template based on a road three-dimensional centerline object, an upper bridge structure occupying object and a lower bridge structure occupying object, and performing space positioning of each contour by using an instantiation mode; in the positioning process, different pile number positioning modes are adopted based on different characteristic types, the main beam adopts an outline section positioning method taking a space curved surface formed along the normal line of a road flat curve and the Z direction as a reference, the lower structure takes an orthogonal coordinate system of a pier column top, a cover beam bottom, a bearing platform top and a bearing platform bottom as a positioning reference, and the auxiliary structure mainly takes the side line normal plane of the upper lower structure as an arrangement reference. As shown in the attached figure 5, the method is adopted to optimally design the entrance and exit structure at the end part of the main line ramp of the municipal bridge, three-dimensional center lines of two roads, pavements and ultrahigh information are used as input conditions, iterative calculation is carried out based on a plane initial ridge line until errors meet design set values, and therefore a space base line is obtained. The method comprises the steps of taking three-dimensional center line, pavement and superelevation information of a road as input, dividing a bridge superstructure into a main line segment, an end-main line segment and an end-ramp segment based on the starting and ending points of a space baseline, and respectively completing instantiation of structural sections to form a space entity. The method can solve the problems of overlarge cross slope deviation, excessive adjustment in construction and the like caused by manually drawing ridge lines in the traditional two-dimensional design.

Step five: the overall design rationality is evaluated and the design is modified according to the analysis results. And taking the three-dimensional structure design model as a data source, and extracting data to space finite element analysis software for stress analysis. The collision check, the clearance analysis and the like can be directly realized on the platform. The design tool in the invention satisfies the transmission and inheritance of design data, and realizes the context data association and automatic updating triggering design. From the input of road route data, all bridge design objects related to the method all adopt a data association mode to carry out data transmission, an input and output topological characteristic operation process based on custom characteristics is formed, an input interface for independently changing each characteristic is provided, multi-stage data driving from top to bottom can be realized, and bridge design characteristics of three design stages of concept, total and detail are covered.

Step six: the overall design results model is split into individual PLM objects. An individual PLM management object refers to an independent part or product node that has semantic lifecycle management attributes. The contents of a bridge girder, a lower structure upright post, a bearing platform, a pile foundation and the like in the overall design can be independently used as management objects to be split under the detailed design nodes. The upper structure, the lower structure and the attached structure objects are split according to the stake numbers and the strides, so that the objects are stored in a storage unit capable of independently managing the PLM life cycle, as shown in figure 7.

Step seven: and carrying out detailed bridge structural design. And carrying out detailed structural design on the bridge according to the bridge structure model object split under the detailed design node. The detailed structural design comprises the detailed design of inner and outer box chambers, cross beams, cross slabs, cantilever arms, thickened expansion joint notches and the like in the upper structure, capping beams, stand columns, table caps, table bodies, pile foundations of bearing tables and the like in the lower structure, and the detailed design of structures such as anti-collision guardrails, expansion joints, bridge deck pavement, supports, sidewalks, drainage systems, anti-dazzle plates, anti-throwing nets and the like in the auxiliary structure. Can further independently design according to actual engineering needs based on crossbeam, interior case room, horizontal baffle, tip notch and the thickening characteristic of arm of choosing to superstructure. And a part of components automatically generate the three-dimensional model by calling a standard component library. Especially for some standardized components with relatively complex topological shapes, the design can be directly carried out in a mode of calling and adjusting parameters through component library selection without independently modeling components such as street lamps, expansion joints, anti-glare panels and the like. As shown in fig. 6.

In addition, the defining, storing and using methods of the data structures such as the design object, the design key parameter and the like correspond to the bridge 3D model, and each related attribute is reasonably stored and related in the database and the model. Under the CAA development framework of DS CATIA, model self-defining characteristics such as bridge overall occupation, bridge split connection, bridge split span, bridge girder, substructure and auxiliary structure are described by C + +. Each custom feature comprises a custom feature Interface (Interface) and a custom feature Implementation (Implementation) method. The interface defines the input, operation and output interfaces with self-defined characteristics, and in the realization process, except for finishing the realization of specific input and output interfaces, the method for establishing, updating and deleting newly added expanded topology and reporting topology change, icons and double-click response are realized.

The self-defined features exist in various stages of bridge concept design, overall design, detailed design and the like, and take inheritance, association and reference relations among various types into consideration. Therefore, each custom feature can realize automatic triggering updating operation after detecting other parameter changes as input. As shown in fig. 4.

Model deliveries at the LOD350 level may be implemented for infrastructure, adjunct architectures based on BIM delivery guidelines.

And locking the current input characteristic of each storage object, performing parameter interruption on the input characteristic of the object in the current context process, and storing parameter input and geometric topology operation.

The design tool in the invention is developed based on CATIA by using C + + language, and can create a three-dimensional model by inputting parameters according to design conditions and construction requirements. The special algorithm of part of key components provided by the invention can also be realized in software products such as Autodesk, bentley and the like by means of secondary development.

From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly can be implemented by software or hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements and substitutions will now be apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (20)

1. A three-dimensional forward design method for a municipal highway bridge is characterized by comprising the following steps:

s1, designing a bridge concept: acquiring three-dimensional environment data and bridge initial data to generate a bridge concept design model;

s2, overall bridge design: extracting profile-level, feature-level, component-level and assembly-level data based on a resource library template, and multiplexing the data to produce a bridge overall design model;

s3: and (3) evaluating the rationality: extracting structural data in the bridge overall design model data to structural analysis software, and performing collision check and space rationality analysis among multiple specialties; if an unreasonable report is generated, the overall design of the bridge is modified or completed again;

s4, bridge detailed design: mapping and splitting the granularity of the component based on the overall design data of the bridge to generate single component data; and inputting refined parameters and generating a detailed bridge design model.

2. The method of claim 1, wherein the bridge conceptual design, the bridge overall design and the bridge detailed design are based on a bridge design sketch outline template, a component template and a component template.

3. The method of claim 2, wherein the three-dimensional environmental data comprises terrain data, route data, geological survey data, city pipe network survey and design data, and current building three-dimensional model data.

4. The method of claim 3, wherein the route data comprises road centerline data, road plane line data, and road boundary line data.

5. The method of claim 1 for designing a three-dimensional positive municipal road bridge according to claim 1, wherein S1 comprises the steps of:

acquiring three-dimensional environment data and creating a road route;

inputting the overall design parameters of the bridge and automatically establishing a new bridge object;

and inputting the distribution connection span data to carry out single and batch span distribution of the bridge and generate a bridge distribution connection span model.

6. The method of claim 5, wherein the new bridge object is a three-dimensional model containing bridge horizontal and longitudinal line type information, bridge start and end point pile numbers, and initial design information of high-beam upper and lower structure elevation systems.

7. The method of claim 5, wherein the bridge is laid in single and batch mode, and the positions and angles of the spans are determined based on the interaction of the three-dimensional center lines.

8. The method of claim 7, wherein individual and batch spanning of the bridge is performed, and the bridge design object creates a split model based on the split span data and establishes an expansion joint model related to the split model.

9. The method of claim 8, wherein the bridge split distribution span model comprises bridge split object information, bridge split span identifier information, a bridge substructure model, and an expansion joint model.

10. The method for designing the three-dimensional positive direction of the municipal road bridge according to claim 1, wherein S2 comprises the steps of:

acquiring characteristic level data, and generating a bridge structure section based on a bridge distribution cross model; the cross section comprises form information and a size parameter;

acquiring profile level data, and generating a bridge profile based on the road centerline object and the new bridge object; the new bridge object comprises superstructure occupancy information, substructure occupancy, and adjunct structure information;

and positioning the outline by an instantiation mode, and generating a feature level overall design model under unified part nodes.

11. The three-dimensional forward design method for the municipal road bridge according to claim 10, wherein the positioning method comprises the following steps:

positioning the upper structure of the new bridge by taking a space curved surface formed by the normal line of the central line of the road and the Z direction as a profile section of a reference; generating an orthogonal coordinate system of the substructure below the superstructure for positioning the substructure; the side line normal of the upper and lower structure structures is used as a reference positioning auxiliary structure.

12. The method of claim 11, wherein the superstructure comprises, but is not limited to, inner and outer boxes, beams, diaphragms, cantilever thickening, and expansion joint notches; the lower structure comprises but is not limited to a cover beam, a vertical column, a table cap, a table body and a bearing platform pile foundation; the auxiliary structures include, but are not limited to, crash barriers, expansion joints, bridge deck pavement, supports, sidewalk boards, drainage systems, antiglare panels, and anti-drop nets.

13. The method of claim 1, wherein S3 comprises the steps of: and taking the three-dimensional structure model as a data source, and extracting data to space finite element analysis software for stress analysis.

14. The method of claim 1, wherein S4 comprises the steps of:

splitting the bridge overall design model to obtain split data, and storing the split data into a PLM management object;

and inputting component parameter information or calling standard component library data to produce the detailed bridge construction model.

15. The method of any one of claims 1 to 14 for the three-dimensional forward design of a municipal road bridge, wherein:

associating the context data such that each parameter is stored and associated in the database and the model;

and setting a context trigger, and when a certain parameter is changed, realizing cross-phase data association driving by other parameters.

16. The method of claim 15, wherein the method comprises the steps of: the context data includes route data, conceptual design placeholder model data, general design outline model data, and detailed design subentry model data.

17. A three-dimensional forward design system of a municipal highway bridge, comprising:

the bridge concept design module is used for generating a bridge concept design model by acquiring three-dimensional environment data and bridge initial data;

the bridge overall design module extracts profile-level, feature-level, component-level and component-level data based on the resource library template and multiplexes the data to produce a bridge overall design model;

the reasonability evaluation module is used for extracting structural data in the bridge overall design model data to structural analysis software for stress analysis, and performing collision inspection and space reasonability analysis among multiple professions; if an unreasonable report is generated, the overall design of the bridge is modified or completed again;

the bridge detailed design module is used for mapping and splitting the component granularity based on the bridge overall design data to generate single component data; and inputting refined parameters and generating a detailed bridge design model.

18. The three-dimensional forward design system of the municipal bridge road of claim 17, comprising:

a context data association unit for storing and associating each data of the database and the model;

and the context trigger unit is used for realizing cross-phase data association driving of other parameters.

19. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of the method of three-dimensional forward design of a municipal highway bridge according to claim 15.

20. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor performs the steps of the method of three-dimensional forward design of a municipal highway bridge according to claim 15.

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