Integrated digital design system and method for upper and lower structures of bridge

Abstract

The invention discloses an integrated digital design system and method for upper and lower structures of a bridge, and relates to the technical field of bridge design and computers, a system is created through a computer programming technology, and the functions of intelligent modeling of the upper and lower structures of the bridge, one-key generation of a finite element analysis model and one-key output of a calculation report can be achieved. The system mainly comprises a parameter database, an upper model database, a lower model database, a route identification module, a geological parameter identification module and an integrated intelligent analysis module. Design parameters of upper and lower structures of a bridge are classified and refined to form a universal modular parameter input system, corresponding design parameters of external routes and geological files are automatically identified, and finally all the modules are intelligently integrated to automatically form a complete upper and lower integrated finite element analysis model. The system can improve the calculation and design efficiency of the bridge structure and reduce the design cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bridge design and computer technology, and in particular to a bridge superstructure and substructure integrated digital design system and method. BACKGROUND

[0002] As an important part of transportation infrastructure, bridges play a crucial role in promoting regional economic development and improving transportation efficiency. Bridge design not only needs to consider the functionality and safety of the structure, but also needs to take into account the economy, aesthetics and environmental impact. In bridge design, substructure design is a key link to ensure the overall stability and durability of the bridge.

[0003] Currently, the parameterized modeling of bridge substructure calculation software is cumbersome, and lacks optimization functions for components and structural systems, which brings many inconveniences to bridge designers. The main shortcomings are as follows: (1) Route import (vertical curve, horizontal curve, etc.) needs to be imported into the analysis software after extracting the route dwg / dxf file from CAD; (2) The import of geological parameters is troublesome, the data volume is large and easy to make mistakes (soil layer and thickness, pile position, drilling information cannot be automatically matched); (3) The substructure parameters are many, the modeling time is long, the efficiency is low, and usually the representative position calculation is selected, which cannot be batch calculated and analyzed; (4) The superstructure and substructure are modeled and analyzed separately, and the degree of refinement is not enough; (5) The parameter linkage is poor, and multiple parameters need to be modified when designing and optimizing adjustment; including single component parameters (pier height, spacing, tie beam arrangement, foundation burial depth, etc.) and superstructure and substructure related parameters.

[0004] With the development of modern engineering technology, the traditional design method has been unable to meet the growing design precision and efficiency requirements, therefore, it is particularly urgent to carry out parameterized modeling and integrated intelligent design research of bridge superstructure and substructure. SUMMARY

[0005] In order to overcome the defects in the prior art, the present application provides a bridge superstructure and substructure integrated digital design system and method, which improves the calculation and design efficiency of bridge structure and reduces the design cost.

[0006] To achieve the above purpose, the technical scheme adopted by the present application comprises: A bridge superstructure and substructure integrated digital design system, comprising: a parameter database, a superstructure model database, a substructure model database, a route recognition module, a geological parameter recognition module, and an integrated intelligent analysis module; The parameter database is used to store the project information input by the user, the route information imported by the route identification module, the geological information imported by the geological parameter identification module, the upper template and the lower template established by the user or imported by matching the upper model database and the lower model database, and the bridge information input by the user; The upper model database is used to store the standard model files of all upper structures and the corresponding model abstract information; The lower model database is used to store the standard model files of all lower structures and the corresponding model abstract information; The route identification module is used to parse the route file and store the parsed route information into the parameter database; The geological parameter identification module is used to parse the geological file and store the parsed geological information into the parameter database; The integrated intelligent analysis module is used to match the appropriate upper structure and lower structure from the upper model database and the lower model database according to the bridge information and the route information, generate the corresponding upper template and lower template, store them into the parameter database, and combine them into the full-bridge geometric model.

[0007] Preferably, the information stored in the parameter database is as follows: The project information includes the project basic information and the material, load and specification information; The route information includes the horizontal curve, the vertical curve, the ground line and the super-elevation information; The geological information includes the pile number, the borehole and the soil layer information; The upper template is created by the user or matched by the integrated intelligent analysis module from the upper model database, and is stored into the parameter database after adjusting the support height, the bridge number and the edge distance according to the requirements; The lower template is created by the user or matched by the integrated intelligent analysis module from the lower model database, and is stored into the parameter database after adjusting the bent cap, the pier, the pile and the tie beam according to the requirements; The bridge information includes the span arrangement, the cross-section arrangement, the pier height and the pile length information.

[0008] Preferably, the route file generated by the route design software is directly input into the system, the route identification module directly parses the route file and identifies the design parameters, including the horizontal curve, the vertical curve, the ground line and the super-elevation; The identification of the horizontal curve includes the starting point of the route and various linear shapes constituting the horizontal curve; The identification of the vertical curve includes the number of points constituting the vertical curve, the pile number, the elevation and the radius of each point; The identification of the ground line includes the number of points constituting the ground line, the pile number and the elevation of each point; The super high identification includes: left lane super high and right lane super high; the number of points constituting the left lane super high, the stake number and slope of each point; the number of points constituting the right lane super high, the stake number and slope of each point.

[0009] Preferably, the route identification module is developed using the C++ standard library; the std::ifstream class template is used to read data files, the std::string class template is used to store data, and the std::vector class template is used to store arrays; the pure virtual function class IDaolu is used to unify the reading interfaces of all route files.

[0010] Preferably, the geological design software generated by the system is directly input into the geological file, and the geological parameter identification module directly parses the geological file and identifies the design parameters, including the soil layer, stake number and drill hole.

[0011] Preferably, the geological file is a CAD file, and the processing process of the geological parameter identification module is as follows: Various types of CAD primitives are read from the CAD file; Various types of exploration hole table forms are stored in the exploration hole table form database; The parameters of a single table are read from the exploration hole table form database, and the size is matched from the CAD primitive, and after successful matching, the coordinates and size of the CAD primitive are saved, and the matched exploration hole table form type is saved; According to the type and size of the exploration hole table form, the coordinates of each parameter are calculated; the CAD primitive is matched according to the coordinates, and the parameter value corresponding to the CAD primitive is parsed; If a single exploration hole, i.e., a drill hole, is composed of multiple tables, the multiple tables are merged and stored in the parameter database.

[0012] Preferably, the geological parameter identification module is developed using the C++ standard library; the std::ifstream class template is used to read data files, the std::string class template is used to store data, the std::vector class template is used to store arrays, and the std::map class template is used to store mapping data; the json format is used as a configuration file.

[0013] Preferably, the integrated intelligent analysis module also performs finite element analysis based on the full-bridge geometric model, obtains a finite element analysis model, and performs standard design to automatically generate a calculation report.

[0014] The application also provides a bridge superstructure and substructure integrated digital design method, which adopts the bridge superstructure and substructure integrated digital design system, and the specific process is as follows: Step 1: the user inputs project information and bridge information; the user imports a route file and a geological file, and a route identification module and a geological parameter identification module correspondingly analyze the route file and the geological file to obtain route information and geological information; Step 2: the span arrangement in the bridge information is called to obtain bridge width and bridge span information, so as to obtain the span number and span of each bridge, and a suitable upper model of each bridge is matched from an upper model database according to the span number and span of each bridge, and an upper structure is generated; Step 3: according to the span arrangement of each bridge, the horizontal curve information in the route information and the stake number information in the geological information are called to calculate the actual position of the bridge on the route, and the coordinates and normal direction at each actual position are calculated, so as to arrange the main beam; Step 4: after the main beam is arranged, the stake number at the cross span is obtained; the vertical curve elevation and the ground line elevation in the route information are called according to the stake number, the height of the upper structure is obtained from the upper model, and the total height of the pier and the bent cap is obtained; a suitable lower model is matched from a lower model database according to the total height and the width of the upper structure, and a lower structure is generated; the lower structure is arranged according to the normal direction at the stake number and the position corresponding relationship of the upper structure and the lower structure; Step 5: after the lower structure is arranged, the stake coordinate is obtained; the drilling information in the geological information is called, and the drilling information closest to the arranged stake position is found according to the stake coordinate; Step 6: a full-bridge geometric model is combined; Step 7: a finite element analysis model of the upper structure and the lower structure is respectively generated, and the finite element analysis models of the upper structure and the lower structure are combined into a complete finite element analysis model according to the connection relationship of the upper structure and the lower structure; Step 8: the specification design is carried out according to the specification requirements; Step 9: a calculation report is generated.

[0015] The application further provides a computer program product, which comprises computer programs / instructions, and the computer programs / instructions are executed by a processor to realize the bridge upper and lower structure integrated digital design method.

[0016] The application has the following advantages: (1) The application discloses a bridge superstructure and substructure integrated digital design system, a parameterized design system is created through computer programming technology, and functions of intelligent modeling of bridge superstructure and substructure, one-key generation of a finite element analysis model and one-key output of a calculation report can be realized. The system is mainly composed of three databases and three function modules, namely, a parameter database, a superstructure model database, a substructure model database and a route identification module, a geological parameter identification module and an integrated intelligent analysis module. The realization method is that design parameters of the bridge superstructure and substructure are classified and refined to form a general modular parameter input system, meanwhile, external files (route and geological files) are automatically identified with corresponding design parameters (including design parameters provided by different software) through computer algorithms, and finally, the above modules are intelligently integrated through computer algorithms to automatically form a complete superstructure and substructure integrated finite element analysis model.

[0017] (2) In the system running process, design files (route and geological files) provided by different software (route and geological design software) are directly imported, without the need of opening the software for operation, so that the system is stable and fast in operation, and the bridge modeling time is greatly shortened.

[0018] (3) The system has the functions of parameterized modeling, automatic reinforcement, automatic drawing and automatic generation of calculation reports.

[0019] (4) The system has a low use threshold, can significantly improve the efficiency of bridge design, reduces the error rate of manual parameter input, shortens the design cycle, and provides detailed information for construction and maintenance.

[0020] (5) The system realizes intelligent analysis of the bridge superstructure and substructure integration, and the generated model can also be stored in the model library for secondary development and calling.

[0021] (6) Through the automatic and intelligent design process, bridge engineers can focus more on innovation and optimization of the design scheme, instead of tedious drawing and calculation work.

[0022] (7) The bridge route data of the application is automatically read into the latitude and longitude data, including horizontal curve, vertical curve, super elevation and the like, and is directly used in the finite element analysis model after analysis, thereby reducing the user calling and input work.

[0023] (8) The geological survey data of the application is automatically read into the Lizheng data, including drilling information and soil layer distribution information, and is directly used in the finite element analysis model and component checking after analysis, and meanwhile, each pile position information can be directly displayed on the route, so that the user can conveniently check and check, the workload of modeling and checking data copying is reduced, and the accuracy is improved.

[0024] (9) The upper model database and the lower model database are formed based on the existing standard drawings, and the model library is called to directly generate the model matched with the upper and lower structures for analysis and calculation.

[0025] (10) The model component parameter modification can automatically associate the mutually affected component data, realize the parameter association of the entire structure based on the design rules, reduce the design personnel modification workload, and avoid the occurrence of errors such as missing modification.

[0026] (11) The entire route all lower structures can be calculated and analyzed at one time, the efficiency is improved, and the previous design experience selection of representative structure checking is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The method flowchart of the present application.

[0028] Figure 2 The database schematic diagram of the system of the present application.

[0029] Figure 3 The system function module schematic diagram of the present application.

[0030] Figure 4 The schematic diagram of inputting bridge information in the system operation interface.

[0031] Figure 5 The schematic diagram of a certain joint (span arrangement 4x25m) in the upper structure.

[0032] Figure 6 The schematic diagram of the pier parameter list in the lower structure.

[0033] Figure 7 The schematic diagram of the drilling list in the system operation interface.

[0034] Figure 8 The connection schematic diagram of the lower structure and the upper structure.

[0035] Figure 9 The schematic diagram of the finite element analysis model. DETAILED DESCRIPTION

[0036] 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. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0037] Embodiment 1 As Figure 2And Figure 3 As shown in the figure, the present application provides a bridge superstructure and substructure integrated digital design system, comprising three databases and three function modules, namely parameter database, superstructure model database, substructure model database, and route identification module, geological parameter identification module, and integrated intelligent analysis module.

[0038] The parameter database is used to store the project information input by the user, the route information obtained by the route identification module, the geological information obtained by the geological parameter identification module, the superstructure template and the substructure template established by the user or imported by matching the superstructure model database and the substructure model database, and the bridge information input by the user.

[0039] Specifically, The project information includes the basic information of the project and the information of materials, loads, specifications, etc. The route information is the parameters obtained by importing the route file generated by the route design software (such as Weidi software) and analyzing by the route identification module, including the information of horizontal curve, vertical curve, ground line, super-elevation, etc. The geological information is the design parameters obtained by importing the geological file (such as dwg format geological drawing) generated by the geological design software (such as Li Zheng software) and analyzing by the geological parameter identification module, including the information of borehole, soil layer, pile number, etc. The superstructure template is created by the user or imported by matching the superstructure model database by the integrated intelligent analysis module, and the user can adjust the required parameters according to the needs and store them in the parameter database, including the parameters of support height, bridge number, side distance, etc. The substructure template is created by the user or imported by matching the substructure model database by the integrated intelligent analysis module, and the user can adjust the required parameters according to the needs and store them in the parameter database, including the parameters of cap beam, pier, pile, tie beam, etc. The bridge information includes the information of span arrangement, cross-section arrangement, pier height, pile length, etc.

[0040] The parameters stored in the parameter database are divided into first-level parameters and second-level parameters; wherein the first-level parameters are the parameters obtained by reading different files; the second-level parameters are the related parameters obtained by calculating and correlating the first-level parameters, which can be directly used for design calculation. Among them, the project information, route information, geological information, and bridge information are first-level parameters; the superstructure template and the substructure template are second-level parameters.

[0041] The upper model database and the lower model database are standard model files and corresponding model abstract information based on standard drawings of the upper and lower structures of the existing bridge. The upper model database is used to store the standard model files of the existing upper structure of the user and the corresponding model abstract information. The lower model database is used to store the standard model files of the existing lower structure of the user and the corresponding model abstract information.

[0042] The route identification module is a program module developed based on the C++ language, directly analyzes the design parameters in the route file (the route file output by the Weidi software), reads the horizontal curve data, the vertical curve data, the ground line data and the super elevation data into the program, is convenient for directly calling in the subsequent design stage, and greatly improves the speed and efficiency of the program running.

[0043] The identification of the horizontal curve includes: the starting point (coordinates, stake number, direction) of the route; various linear shapes constituting the horizontal curve, including a straight line (length), a circular arc (length, direction, radius), and a transition curve (length, direction, radius, parameter A).

[0044] The identification of the vertical curve includes: the number of points constituting the vertical curve, the stake number, the elevation and the radius of each point.

[0045] The identification of the ground line includes: the number of points constituting the ground line, the stake number and the elevation of each point.

[0046] The identification of the super elevation includes: the left lane super elevation and the right lane super elevation; the number of points constituting the left lane super elevation, the stake number and the slope of each point; the number of points constituting the right lane super elevation, the stake number and the slope of each point.

[0047] In the embodiment, the route identification module is developed using the C++ standard library, uses the std::ifstream class template to read the data file, uses the std::string class template to store the data, and uses the std::vector class template to store the array. The route identification module can read the route file output by the Weidi software, automatically analyze the design parameters in the route file, read the horizontal curve data, the vertical curve data, the ground line data and the super elevation data into the parameter database. The pure virtual function class IDaolu is used to unify the reading interface of all route files. The simple factory design pattern is used to create the reading interface of various route files, which is convenient for directly calling in the subsequent design stage and avoids repeated input.

[0048] The geological parameter identification module is a program module developed based on the C++ language, directly analyzes the design parameters in the geological file (the geological file output by the Lijing software), reads the soil layer, the stake number, the drilling and other survey data into the program, is convenient for directly calling in the subsequent design stage, and greatly improves the speed and efficiency of the program running.

[0049] The geological parameter identification module includes CAD file identification, exploration hole table database, data table identification, parameter identification, and data merging. The specific processing process is as follows: CAD file (geological drawing in dwg format) identification refers to reading various types of CAD primitives from CAD files, including straight lines (start point coordinates, end point coordinates), circular arcs (center coordinates, radius, start angle, end angle), circles (center coordinates, radius), polylines (number of points, point coordinates, point convexity), text (position, content, font size), multi-line text (position, content, font size), blocks (primitives in blocks), etc. The exploration hole table database stores various types of exploration hole tables. The main parameters include the type of exploration hole (drill hole), the size of the table, the area of each parameter, the data format of each parameter, and the type of each parameter. Each parameter refers to the information of the soil layer and thickness distribution of the exploration hole. Data table identification refers to reading single table parameters (table width, height) from the exploration hole table database and matching the dimensions (table width, height) from CAD primitives. After successful matching, the coordinates and dimensions of the CAD primitives are saved, as well as the type of the matched exploration hole table (different for each type of exploration hole table). Parameter identification refers to accurately calculating the coordinates of each parameter (each data cell in the table) based on the type and size of the exploration hole table. Based on the coordinates, the CAD file is matched, and after matching the CAD primitive, the parameter value corresponding to the CAD primitive is parsed. Data merging refers to combining multiple tables into one if a single exploration hole is composed of multiple tables. If there are multiple tables, the parameters of multiple tables need to be combined and input. The tables with the same table name are filtered and sorted according to the page number.

[0050] In this embodiment, the geological parameter identification module is developed using the C++ standard library. The std::ifstream class template is used to read data dxf files, the std::string class template is used to store dxf data, the std::vector class template is used to store arrays, and the std::map class template is used to store mapping data. The geological parameter identification module can read exploration data from the geological exploration result file (geological file output by the Lizheng software) and automatically identify CAD file primitives, including straight lines, circular arcs, circles, polylines, text, multi-line text, and blocks. Then, the parameters corresponding to the primitives are parsed to form a complete geological exploration data table, which is displayed in real time on the platform interface and can be automatically converted into post-modeling parameters and stored in the parameter database. This facilitates direct calling in the subsequent design stage and avoids repeated input. The json format is used as the configuration file. The open-source Json library provided by nlohmann is used for development.

[0051] The integrated intelligent analysis module automatically matches the upper and lower models from the upper and lower model databases according to the bridge information and the route information, generates corresponding upper and lower templates and stores them into the parameter database, and combines them into a full-bridge geometric model.

[0052] The integrated intelligent analysis module is a program module developed based on C++ language, and based on the information input by the user and the information read from the route and geological files, the module completes the work of searching the superstructure, arranging the main beam, arranging the substructure, searching the drill hole, combining the full-bridge geometric model and generating the finite element analysis model by one key through intelligent algorithm.

[0053] In the embodiment, the integrated intelligent analysis module uses the upper and lower structure refinement model generation function provided by the WISEPLUS software to generate the XML finite element analysis model data format supported by the WISEPLUS software, exports it to the WISEPLUS software, generates the finite element analysis model, and calculates it by the finite element analysis model calculation function provided by the WISEPLUS software, and automatically generates the calculation report by using the specification design function provided by the WISEPLUS software.

[0054] The bridge upper and lower structure integrated digital design system provided by the application can realize the following functions: The bridge route data is automatically read into the WISI data, including the horizontal curve, vertical curve, superelevation and the like, and is directly used for the finite element analysis model after analysis, thereby reducing the user's calling and input work; The geological survey data is automatically read into the LIZHENG data, including the drill hole information, soil layer distribution information and the like, and is directly used for the finite element analysis model and component checking after analysis, and meanwhile, the pile position information can be directly displayed on the route, so that the user can conveniently check and reduce the modeling and checking data copying workload and improve the accuracy; The upper model database and the lower model database are formed based on the existing standard drawings, and the model database can be directly used to generate the model matched with the upper and lower structures for analysis and calculation; For the component parameter modification in the model, the component data affecting each other can be automatically associated, the parameter association of the entire upper and lower structure based on the design rules is realized, the design personnel's modification workload is reduced, and the omission and other errors are avoided; All the lower structures on the entire route can be analyzed by one-time batch calculation, the efficiency is improved, and the previous design of selecting the representative structure for checking according to the experience is avoided.

[0055] Embodiment 2 As shown in Figure 1 Based on the above embodiment 1, the application provides a design method of the bridge upper and lower structure integrated digital design system, taking a "25-meter-span fabricated small box girder / double-column pier" as an example, and the specific process of the bridge structure integrated digital design method is as follows: Step 1: input bridge design parameters.

[0056] The user inputs project information (project name = highway bridge, earthquake acceleration = 0.05g, material = C50, etc., design specification = "Highway Bridge and Culvert Design General Specification", etc.) in the system operation interface, imports route files (k.pm, k.zdm, k.dmx, k.sup), imports geological files (zdm.dwg), and inputs bridge information (bridge name = main line bridge, route = k, starting stake number = 58134.391, span arrangement = ((3x25), (4x25), (4x25), (3x30)), cross section = roadbed width = 26.5m, bridge width = 2x12.75m, width type = left width). The system parses the route files and the geological files, and stores the route information and the geological information into the parameter database; In this embodiment, a schematic diagram of inputting bridge information in the system operation interface is shown in Figure 4 .

[0057] Step 2: search for the upper model to generate the upper structure.

[0058] The system calls the span arrangement in the bridge information in the parameter database, obtains the bridge width and the bridge span arrangement, and thus obtains the span number and the span of each bridge. According to these parameters, a suitable upper model of each bridge can be matched from the upper model database.

[0059] In this embodiment, a schematic diagram of a certain span (span arrangement 4x25m) in the upper structure is shown in Figure 5 .

[0060] Step 3: arrange the main beam.

[0061] According to the span arrangement of each bridge, the system calls the horizontal curve information in the route information and the stake number information in the geological information in the parameter database, calculates the actual position of the bridge on the route, and calculates the coordinate, the normal direction and other parameters at each actual position.

[0062] Step 4: search for the lower model to generate the lower structure, and arrange the lower structure.

[0063] After the main beam is arranged, the stake number at the span can be calculated. According to the stake number, the route information (vertical curve elevation, ground line elevation) is called from the parameter database, and the height of the upper structure is called from the upper model template in the parameter database, to obtain the total height of the pier and the bent cap. According to the total height and the width of the upper structure, a suitable lower model is matched from the lower model database to generate the lower structure. According to the normal direction at the stake number and the position corresponding relationship of the upper structure and the lower structure, the lower structure is arranged.

[0064] In this embodiment, the schematic diagram of the pier parameter list in the lower structure is shown in Figure 6 The pier parameter list details the information of the pier height, foundation depth, and pile length in each bridge.

[0065] Step 5: Search for the drill hole.

[0066] After the lower structure is arranged, the pile position coordinates can be obtained. The geological information (corresponding to the drill hole information of the route) can be called from the parameter database, and the drill hole (exploration hole) information closest to the arranged pile position can be found according to the pile position coordinates.

[0067] In this embodiment, the schematic diagram of the drill hole list in the system operation interface is shown in Figure 7 .

[0068] Step 6: Combine into a full bridge geometric model.

[0069] After the arrangement of the upper structure and the arrangement of the lower structure are completed, the connection relationship between the lower structure and the upper structure can be determined, and a full bridge geometric model can be combined.

[0070] In this embodiment, the schematic diagram of the connection between the lower structure and the upper structure, i.e., the schematic diagram of the full bridge geometric model, is shown in Figure 8 .

[0071] Step 7: Form a finite element analysis model.

[0072] First, a refined finite element analysis model of the upper structure is generated, then a refined finite element analysis model of the lower structure is generated, and finally, according to the connection relationship between the upper structure and the lower structure, the upper model and the lower model are combined into a complete finite element analysis model.

[0073] In this embodiment, the schematic diagram of the finite element analysis model is shown in Figure 9 .

[0074] Step 8: Standard design.

[0075] According to the standard requirements, it is calculated whether the reinforcement of the pile meets the requirements, and whether the configuration of the pier meets the requirements.

[0076] Step 9: Generate a calculation report.

[0077] The design data of the bridge, the detailed data of the standard design, are output in the form of pictures, words, and tables to a WORD document to form a final calculation report.

[0078] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, and improvement within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A bridge superstructure-substructure integrated digital design system, characterized by, Comprise: Parameter database, upper model database, lower model database, route identification module, geological parameter identification module, integrated intelligent analysis module; The parameter database is used for storing the project information input by the user, the route information imported by the route identification module, the geological information imported by the geological parameter identification module, the upper template and the lower template established by the user or matched and imported from the upper model database and the lower model database, and the bridge information input by the user; The upper model database is used for storing standard model files of all upper structures and corresponding model abstract information; The lower model database is used for storing standard model files of all lower structures and corresponding model abstract information; The route identification module is used for parsing route files and storing the parsed route information into the parameter database; The geological parameter identification module is used for parsing geological files and storing the parsed geological information into the parameter database; The integrated intelligent analysis module is used for matching appropriate upper structures and lower structures from the upper model database and the lower model database according to the bridge information and the route information, generating corresponding upper templates and lower templates and storing them into the parameter database, and combining them into a full-bridge geometric model.

2. The system for integrated digital design of superstructure and substructure of a bridge according to claim 1, wherein, The information stored in the parameter database is specifically as follows: The project information includes project basic information and material, load and specification information; The route information includes horizontal curve, vertical curve, ground line and superelevation information; The geological information includes pile number, borehole and soil layer information; The upper template is created by the user or matched from the upper model database by the integrated intelligent analysis module, and after adjusting the support height, bridge number and edge distance according to the requirements, it is stored into the parameter database; The lower template is created by the user or matched from the lower model database by the integrated intelligent analysis module, and after adjusting the bent cap, pier, pile and tie beam according to the requirements, it is stored into the parameter database; The bridge information includes span arrangement, cross-section arrangement, pier height and pile length information.

3. The system for integrated digital design of superstructure and substructure of a bridge according to claim 1, wherein, The route file generated by the route design software is directly input into the system, and the route identification module directly parses the route file and identifies the design parameters, including horizontal curve, vertical curve, ground line and superelevation; The identification of the horizontal curve includes: the starting point of the route, various linear compositions of the horizontal curve; The identification of the vertical curve includes: the number of points constituting the vertical curve, the pile number, elevation and radius of each point; The identification of the ground line includes: the number of points constituting the ground line, the pile number and elevation of each point; The identification of the superelevation includes: the left lane superelevation and the right lane superelevation; the number of points constituting the left lane superelevation, the pile number and slope of each point; the number of points constituting the right lane superelevation, the pile number and slope of each point.

4. The system for integrated digital design of superstructure and substructure of a bridge according to claim 3, wherein, The route identification module is developed using C++ standard library; std::ifstream class template is used to read data files, std::string class template is used to store data, and std::vector class template is used to store arrays; pure virtual function class IDaolu is used to unify the reading interface of all route files.

5. The system for integrated digital design of superstructure and substructure of a bridge according to claim 1, wherein, The geological file generated by the geological design software is directly input into the system, and the geological parameter identification module directly parses the geological file and identifies the design parameters, including soil layer, pile number and borehole.

6. The system for integrated digital design of superstructure and substructure of a bridge according to claim 5, wherein, The geological file is a CAD file, and a processing process of the geological parameter identification module is specifically as follows: reading various types of CAD elements from the CAD file; storing various types of exploration hole tables in the exploration hole table database; reading parameters of a single table from the exploration hole table database, matching the size from the CAD element, saving the coordinates and size of the CAD element after successful matching, and saving the matched exploration hole table type; calculating the coordinates of each parameter according to the type and size of the exploration hole table; matching the CAD element according to the coordinates, and analyzing the parameter value corresponding to the CAD element; if a single exploration hole is composed of multiple tables, the multiple tables are merged and stored in the parameter database.

7. The system for integrated digital design of superstructure and substructure of a bridge according to claim 6, wherein, The geological parameter identification module is developed by using the C++ standard library; the std::ifstream class template is used to read data files, the std::string class template is used to store data, the std::vector class template is used to store arrays, and the std::map class template is used to store mapping data; and the json format is used as a configuration file.

8. The system for integrated digital design of superstructure and substructure of a bridge of claim 1, wherein, The integrated intelligent analysis module also performs finite element analysis based on the full-bridge geometric model, obtains a finite element analysis model, and performs standard design to automatically generate a calculation report.

9. A method for digital design of bridge superstructure-substructure integration, characterized in that, The specific process of the bridge superstructure and substructure integrated digital design system is as follows: Step 1: the user inputs project information and bridge information; the user imports a route file and a geological file, and the route recognition module and the geological parameter identification module correspondingly analyze the route file and the geological file to obtain route information and geological information; Step 2: the span arrangement in the bridge information is called to obtain the bridge width and bridge span information, so as to obtain the span number and span of each bridge, and the appropriate upper model of each bridge is matched from the upper model database according to the span number and span of each bridge to generate the superstructure; Step 3: according to the span arrangement of each bridge, the horizontal curve information in the route information and the stake number information in the geological information are called to calculate the actual position of the bridge on the route, and the coordinates and normal direction at each actual position are calculated, so as to arrange the main beam; Step 4: after the main beam is arranged, the stake number at the cross span is obtained; the vertical curve elevation and the ground line elevation in the route information are called according to the stake number, the height of the superstructure is obtained from the upper model, the total height of the pier and the bent cap is obtained, the appropriate lower model is matched from the lower model database according to the total height and the width of the superstructure to generate the substructure, and the substructure is arranged according to the normal direction at the stake number and the position corresponding relationship of the superstructure and the substructure; Step 5: after the substructure is arranged, the stake coordinate is obtained; the drill hole information in the geological information is called, and the drill hole information closest to the arranged stake position is found according to the stake coordinate; Step 6: the full-bridge geometric model is combined. Step 7: generate finite element analysis models of the upper structure and the lower structure respectively, combine the finite element analysis models of the upper structure and the lower structure into a complete finite element analysis model according to the connection relationship between the upper structure and the lower structure; Step 8: perform specification design according to specification requirements; Step 9: generate a calculation report.

10. A computer program product, characterised in that, It comprises computer programs / instructions which, when executed by a processor, implement the bridge upper and lower structure integrated digital design method of claim 9.

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