Building support structure stress analysis method and system based on BIM, electronic equipment and storage medium

Abstract

The invention belongs to the field of building structure analysis, and discloses a BIM-based building support structure stress analysis method and system, electronic equipment and a storage medium, and the method comprises the steps: obtaining design data of a support structure, and generating a three-dimensional initial model containing geometric features, physical attributes and boundary conditions through a BIM technology; extracting material characteristics and environmental action data from the three-dimensional initial model, and integrating physical attributes and boundary conditions through a finite element analysis method to obtain a stress calculation model; according to the stress calculation model, performing stress-strain analysis on the model by adopting a finite element analysis method, and updating the stress calculation model to obtain a unified model; and calculating stress distribution of the supporting structure of the unified model through a simulation analysis algorithm to obtain preliminary stress result data, extracting a deviation value from the stress result data, and if the deviation value is greater than a preset threshold value, recalculating by adjusting parameters of the unified model until the deviation value is less than the preset threshold value to obtain a final stress analysis result.

Description

Technical Field

[0001] The present invention relates to the technical field of building structure analysis, and in particular to a BIM-based building support structure force analysis method, system, electronic equipment and storage medium. Background Art

[0002] In the field of construction engineering, the stress analysis of the support structure is a key link to ensure construction safety and structural stability, and its importance is self-evident. With the expansion of the scale and increase in complexity of buildings, the design and analysis of the support structure directly affects the quality of the project and cost control, and has become one of the core driving forces for technological progress in the industry. However, traditional methods have gradually exposed their shortcomings when facing the needs of modern construction. Existing solutions mostly rely on two-dimensional drawings and simplified calculation models, which are difficult to fully reflect the actual stress state of the support structure, especially for the expression of complex geometric shapes and diverse material properties, which often have problems such as low accuracy and data fragmentation. This method lacks effective connection from design to analysis, resulting in incomplete information transmission and large deviations between the analysis results and the actual working conditions.

[0003] In this context, the stress analysis of support structures faces significant technical challenges. First, accurate modeling of geometric features is difficult, and traditional methods cannot accurately depict the three-dimensional form of the support structure and its interaction with the surrounding environment. Secondly, the complete expression of physical properties is insufficient, and key parameters such as material properties and boundary conditions are difficult to uniformly reflect in a single model. Finally, seamless integration of design and analysis has not yet been achieved, and data is prone to loss or distortion during conversion at different stages. These unresolved technical factors make it difficult for the stress analysis of support structures to meet the requirements of high precision and high efficiency in complex projects, which in turn leads to the unique problem of how to integrate multi-dimensional information and improve the reliability of analysis.

[0004] Therefore, how to build a complete three-dimensional model including geometric features, physical properties and boundary conditions based on BIM technology, and achieve seamless connection between design and analysis in the stress analysis of supporting structures, has become a key issue in improving the technical level in the field of construction engineering. The solution to this problem will directly promote the transformation of supporting structure analysis from the traditional empirical model to the digital and intelligent model. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a BIM-based building support structure stress analysis method, the method comprising:

[0006] S1. Obtain the design data of the support structure and generate a three-dimensional initial model including geometric features, physical properties and boundary conditions through BIM technology;

[0007] S2. extracting material properties and environmental action data from the three-dimensional initial model, integrating the physical properties with the boundary conditions through finite element analysis to obtain a force calculation model;

[0008] S3. According to the force calculation model, a finite element analysis method is used to perform stress-strain analysis on the model, and the force calculation model is updated to obtain a unified model;

[0009] S4. Calculate the force distribution of the unified model support structure through a simulation analysis algorithm to obtain preliminary force result data, and extract a deviation value from the force result data. If the deviation value is greater than a preset threshold, recalculate by adjusting the parameters of the unified model until the deviation value is less than the preset threshold to obtain the final force analysis result.

[0010] Preferably, the S1 comprises:

[0011] Acquiring support structure design data, including the geometric characteristics, material parameters and load information;

[0012] Importing the support structure design data into the BIM system to establish a three-dimensional geometric model of the support structure;

[0013] The physical properties and the boundary conditions are added to the three-dimensional geometric model to obtain the three-dimensional initial model.

[0014] Preferably, S2 includes:

[0015] Acquiring initial model information based on the three-dimensional initial model, including the material properties and environmental effect data of each component of the model;

[0016] Integrating the material properties and the environmental action data through a data fusion algorithm, and generating a comprehensive force distribution based on the boundary conditions;

[0017] The three-dimensional initial model is divided into fine grids based on the comprehensive force distribution, and the divided model is processed using the finite element analysis method to establish the force calculation model.

[0018] Preferably, S3 includes:

[0019] Acquiring the design data of the force calculation model, and discretizing the force calculation model using a finite element analysis method to obtain a grid model;

[0020] Performing stress-strain analysis on the grid model, calculating the stress state of each node in the model, and adjusting the design data through an iterative optimization algorithm to update the stress calculation model;

[0021] For the updated force calculation model, the design data of the model is converted into a data format, and a data consistency check algorithm is used to verify the integrity of the converted data to obtain the unified model.

[0022] Preferably, S4 includes:

[0023] Calculating the displacement and unit stress of each node in the unified model based on the stress-strain analysis method to obtain preliminary force result data;

[0024] Performing statistical analysis on the force result data, calculating the mean value and standard deviation of each group of data, and determining the deviation value based on the calculation results;

[0025] The size between the deviation value and the preset threshold is determined. If the deviation value is greater than the preset threshold, the parameter adjustment process is entered, and the unified model parameters are optimized and recalculated using the gradient descent algorithm until the deviation value is less than the preset threshold to obtain the final force analysis result.

[0026] The present invention also provides a BIM-based building support structure stress analysis system, the system is used to implement any of the above methods, including: an initial model construction module, a stress model construction module, a unified model construction module and a stress analysis module;

[0027] The initial model building module is used to obtain the design data of the support structure and generate a three-dimensional initial model including geometric features, physical properties and boundary conditions through BIM technology;

[0028] The force model building module is used to extract material properties and environmental action data from the three-dimensional initial model, and integrate the physical properties and the boundary conditions through finite element analysis to obtain a force calculation model;

[0029] The unified model building module is used to perform stress-strain analysis on the model using a finite element analysis method according to the force calculation model, and to update the force calculation model to obtain a unified model;

[0030] The force analysis module calculates the force distribution of the unified model support structure through a simulation analysis algorithm to obtain preliminary force result data, and extracts a deviation value from the force result data. If the deviation value is greater than a preset threshold, the parameters of the unified model are adjusted and recalculated until the deviation value is less than the preset threshold to obtain the final force analysis result.

[0031] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, any one of the above-mentioned BIM-based building support structure stress analysis methods is implemented.

[0032] The present invention also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed, it implements any one of the above-mentioned BIM-based building support structure force analysis methods.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The present invention first uses BIM technology to construct a three-dimensional digital structural model containing geometric features, physical properties and boundary conditions, and then generates a force calculation model through a finite element analysis algorithm; then, an iterative optimization algorithm is used to achieve seamless connection between the design and analysis links to form a unified model; the present invention calculates the force distribution of the support structure through a simulation analysis algorithm, and adjusts and recalculates parameters according to the deviation value, and finally obtains an accurate force analysis result. Through the data mapping algorithm, the present invention generates an intuitive visual force distribution diagram, which provides strong support for engineering design and decision-making. This method realizes the full process digitization of support structure design, analysis and optimization, improves analysis accuracy and efficiency, and provides effective technical support for engineering practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0036] Figure 1 A schematic diagram of a method flow chart of an embodiment of the present invention;

[0037] Figure 2 Schematic diagram of the structure of an electronic device according to an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1010, processor; 1020, memory; 1030, input / output interface; 1040, communication interface; 1050, bus. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] Embodiment 1

[0043] In this embodiment, if Figure 1 As shown, a BIM-based building support structure stress analysis method includes:

[0044] S1. Obtain the design data of the support structure and generate a three-dimensional initial model including geometric features, physical properties and boundary conditions through BIM technology.

[0045] S1 includes: obtaining support structure design data, including geometric features, material parameters and load information; importing the support structure design data into the BIM system to establish a three-dimensional geometric model of the support structure; adding physical properties and boundary conditions to the three-dimensional geometric model to obtain a three-dimensional initial model.

[0046] In this embodiment, the support structure design data is obtained, including geometric features, material parameters and load information, wherein the geometric features describe the shape, size and spatial layout of the support structure, such as the thickness, depth, spacing and length of the support wall; the material parameters include the physical and mechanical properties of the materials used in the support structure, such as the strength grade of concrete, the elastic modulus of steel, the shear strength of the soil, etc.; the load information covers the various forces that the support structure may bear during construction and use, such as soil pressure, water pressure, construction load, etc. The data interface is imported into the BIM system to establish a parametric model of the support structure. Based on the imported design data, a three-dimensional geometric model of the support structure is generated and physical property information is added, such as material strength, elastic modulus, Poisson's ratio, density, etc., and the boundary conditions of the model are defined, including constraints and external forces. The finite element analysis method is used to calculate the mechanical properties of the support structure. Based on the calculation results, the design parameters of the support structure are optimized to obtain a three-dimensional initial model.

[0047] S2. Extract material properties and environmental action data from the three-dimensional initial model, integrate physical properties and boundary conditions through finite element analysis, and obtain a force calculation model.

[0048] S2 includes: obtaining initial model information based on the three-dimensional initial model, including material properties and environmental action data of each component of the model; integrating material properties and environmental action data through data fusion algorithm, and generating comprehensive force distribution based on boundary conditions; refining the mesh of the three-dimensional initial model based on the comprehensive force distribution, and processing the divided model using finite element analysis method to establish a force calculation model.

[0049] In this embodiment, the initial model information is obtained from the database of the three-dimensional initial model, and the geometric shape, size parameters and topological structure data are extracted. The material properties of each component of the model are matched according to the material library, including physical parameters such as elastic modulus, Poisson's ratio, density, etc. The sensor network is used to collect environmental action data to obtain external environmental conditions such as temperature, humidity, and wind load. The material properties and environmental action data are integrated through the data fusion algorithm to generate a comprehensive force distribution. If the comprehensive force exceeds the preset threshold, the grid division is refined to improve the calculation accuracy of the local area, and the finite element analysis method is used to establish a force calculation model containing nodes, units, and constraints.

[0050] S3. According to the force calculation model, the finite element analysis method is used to perform stress-strain analysis on the model, and the force calculation model is updated to obtain a unified model.

[0051] S3 includes: obtaining the design data of the force calculation model, and discretizing the force calculation model using the finite element analysis method to obtain a mesh model; performing stress-strain analysis on the mesh model, calculating the stress state of each node in the model, and adjusting the design data through an iterative optimization algorithm to update the force calculation model; for the updated force calculation model, converting the data format of the model's design data, and using a data consistency check algorithm to verify the integrity of the converted data to obtain a unified model.

[0052] In this embodiment, first, the design data is extracted from the force calculation model, and then the force calculation model is discretized using the finite element analysis method: the finite element analysis method converts continuous mathematical problems into discrete numerical problems by dividing the complex continuum structure into a finite number of units (such as tetrahedral units or hexahedral units), and through the meshing technology, the three-dimensional geometric model of the support structure is divided into mesh units, and material properties and boundary conditions are assigned to each unit to finally generate a mesh model. Based on the grid model, the finite element analysis method is used to perform stress and strain analysis on the support structure: by solving the control equations (such as equilibrium equations, geometric equations and physical equations), the displacement, stress and strain state of each node in the model are calculated, and the force state of each node is obtained. According to the stress and strain analysis results, the design data is adjusted through the iterative optimization algorithm to optimize the performance of the support structure; the core of the iterative optimization algorithm is to adjust the design parameters (such as material thickness, support spacing, etc.) so that the support structure can meet the safety and economic requirements while reducing the material usage or improving the bearing capacity as much as possible. After each iteration, the force calculation model is updated and the stress and strain analysis is re-performed until the performance indicators of the model (such as stress distribution, displacement, etc.) meet the preset optimization goals. For the updated force calculation model, its design data is converted into a unified data format for data interaction with other analysis tools or systems. During the data format conversion process, the model's geometric information, material properties, and boundary conditions are standardized. In order to ensure the integrity and accuracy of the data, a data consistency check algorithm is used to verify the converted data. By comparing the key parameters of the original data with the converted data, it is confirmed that the data is not lost or erroneous during the conversion process, thereby ensuring the reliability and consistency of the model.

[0053] S4. Calculate the force distribution of the unified model support structure through the simulation analysis algorithm to obtain preliminary force result data, and extract the deviation value from the force result data. If the deviation value is greater than the preset threshold, recalculate by adjusting the parameters of the unified model until the deviation value is less than the preset threshold to obtain the final force analysis result.

[0054] S4 includes: calculating the displacement and unit stress of each node in the unified model based on the stress-strain analysis method to obtain preliminary force result data; performing statistical analysis on the force result data, calculating the mean value and standard deviation of each group of data, and determining the deviation value based on the calculation results; judging the size between the deviation value and the preset threshold value. If the deviation value is greater than the preset threshold value, entering the parameter adjustment process, using the gradient descent algorithm to optimize and recalculate the unified model parameters until the deviation value is less than the preset threshold value, and obtaining the final force analysis result.

[0055] It should be noted that the method of the embodiment of the present disclosure can be performed by a single device, such as a computer or a server. The method of the present embodiment can also be applied in a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present disclosure, and the multiple devices will interact with each other to complete the described method.

[0056] It should be noted that some embodiments of the present disclosure are described above. Other embodiments are within the scope of the attached claims. In some cases, it should be understood that the size of the serial number of each step in the above embodiment does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention. The actions or steps recorded in the claims can be performed in an order different from that in the above embodiment and still achieve the desired results. In addition, the process depicted in the accompanying drawings does not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0057] Embodiment 2

[0058] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present invention also provides a BIM-based building support structure force analysis system, including: an initial model construction module, a force model construction module, a unified model construction module and a force analysis module.

[0059] The initial model building module is used to obtain the design data of the support structure and generate a three-dimensional initial model containing geometric features, physical properties and boundary conditions through BIM technology.

[0060] The workflow of the initial model building module includes: obtaining the support structure design data, including geometric features, material parameters and load information; importing the support structure design data into the BIM system to establish a three-dimensional geometric model of the support structure; adding physical properties and boundary conditions to the three-dimensional geometric model to obtain a three-dimensional initial model.

[0061] The force model construction module is used to extract material properties and environmental action data from the three-dimensional initial model, and integrate physical properties and boundary conditions through finite element analysis to obtain a force calculation model.

[0062] The workflow of the force model construction module includes: obtaining initial model information based on the three-dimensional initial model, including material properties and environmental action data of each component of the model; integrating material properties and environmental action data through data fusion algorithm, and generating comprehensive force distribution based on boundary conditions; refining the mesh of the three-dimensional initial model based on the comprehensive force distribution, and processing the divided model using finite element analysis to establish a force calculation model.

[0063] The unified model building module is used to perform stress-strain analysis on the model according to the force calculation model using the finite element analysis method, and to update the force calculation model to obtain a unified model.

[0064] The workflow of the unified model construction module includes: obtaining the design data of the force calculation model, and discretizing the force calculation model using the finite element analysis method to obtain a mesh model; performing stress-strain analysis on the mesh model, calculating the force state of each node in the model, and adjusting the design data through an iterative optimization algorithm to update the force calculation model; for the updated force calculation model, converting the data format of the model's design data, and using a data consistency check algorithm to verify the integrity of the converted data to obtain a unified model.

[0065] The force analysis module calculates the force distribution of the unified model support structure through a simulation analysis algorithm to obtain preliminary force result data, and extracts the deviation value from the force result data. If the deviation value is greater than the preset threshold, the parameters of the unified model are adjusted and recalculated until the deviation value is less than the preset threshold to obtain the final force analysis result.

[0066] The workflow of the force analysis module includes: calculating the displacement and unit stress of each node in the unified model based on the stress-strain analysis method to obtain preliminary force result data; performing statistical analysis on the force result data, calculating the mean and standard deviation of each group of data, and determining the deviation value based on the calculation results; judging the size between the deviation value and the preset threshold. If the deviation value is greater than the preset threshold, entering the parameter adjustment process, using the gradient descent algorithm to optimize and recalculate the unified model parameters until the deviation value is less than the preset threshold, and obtaining the final force analysis result.

[0067] The system of the above-mentioned embodiment is used to implement the corresponding BIM-based building support structure force analysis method in any of the above-mentioned embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0068] It should be noted that the above-mentioned BIM-based building support structure stress analysis system is embodied in the form of functional units. The term "module" here can be implemented in the form of software and / or hardware, and is not specifically limited to this.

[0069] For example, a "module" may be a software program, a hardware circuit, or a combination of the two that implements the above functions. The hardware circuit may include an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor, or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combined logic circuit, and / or other suitable components that support the described functions.

[0070] Embodiment 3

[0071] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments and methods, the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the BIM-based building support structure stress analysis method described in any of the above embodiments is implemented.

[0072] Figure 2 A more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment is shown, and the device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 in the device.

[0073] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0074] The memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0075] The input / output interface 1030 is used to connect the input / output module to realize information input and output. The input / output module can be configured in the device as a component (not shown in the figure), or it can be externally connected to the device to provide corresponding functions. The input device may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, etc.

[0076] The communication interface 1040 is used to connect a communication module (not shown in the figure) to realize communication interaction between the device and other devices. The communication module can realize communication through a wired mode (such as USB (Universal Serial Bus), network cable, etc.), or through a wireless mode (such as mobile network, WIFI (Wireless Fidelity), Bluetooth, etc.).

[0077] The bus 1050 includes a path that transmits information between the various components of the device (eg, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0078] It should be noted that, although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, it can be understood by those skilled in the art that the above device may also only include the components necessary for implementing the embodiments of the present specification, and does not necessarily include all the components shown in the figure.

[0079] The system of the above-mentioned embodiment is used to implement the corresponding BIM-based building support structure force analysis method in any of the above-mentioned embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0080] Embodiment 4

[0081] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present invention also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the BIM-based building support structure force analysis method as described in any of the above embodiments.

[0082] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0083] The computer instructions stored in the storage medium of the above embodiment are used to enable the computer to execute the BIM-based building support structure force analysis method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0084] One of ordinary skill in the art will appreciate that the discussion of any embodiments above is merely exemplary and is not intended to imply the scope of the present disclosure. There are many other variations of different aspects of the embodiments of the present disclosure, which are not provided in detail for the sake of conciseness.

[0085] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present disclosure difficult to understand, the known power / ground connections to the integrated circuit (IC) chips and other components may or may not be shown in the provided figures. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present disclosure difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which the embodiments of the present disclosure will be implemented (that is, these details should be fully within the scope of understanding of those skilled in the art). Where specific details (e.g., circuits) are set forth to describe exemplary embodiments of the present disclosure, it is apparent to those skilled in the art that the embodiments of the present disclosure can be implemented without these specific details or with changes in these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0086] Although the present disclosure has been described in conjunction with specific embodiments of the present disclosure, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0087] Therefore, the units of each example described in the embodiments of the present application can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

[0088] The embodiments of the present disclosure are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A BIM-based building support structure stress analysis method, characterized in that: The method comprises: S1. Obtain the design data of the support structure and generate a three-dimensional initial model including geometric features, physical properties and boundary conditions through BIM technology; S2. extracting material properties and environmental action data from the three-dimensional initial model, integrating the physical properties with the boundary conditions through finite element analysis to obtain a force calculation model; S3. According to the force calculation model, a finite element analysis method is used to perform stress-strain analysis on the model, and the force calculation model is updated to obtain a unified model; S4. Calculate the force distribution of the unified model support structure through a simulation analysis algorithm to obtain preliminary force result data, and extract a deviation value from the force result data. If the deviation value is greater than a preset threshold, recalculate by adjusting the parameters of the unified model until the deviation value is less than the preset threshold to obtain the final force analysis result.

2. According to the BIM-based building support structure stress analysis method of claim 1, it is characterized in that: The S1 includes: Acquiring support structure design data, including the geometric characteristics, material parameters and load information; Importing the support structure design data into the BIM system to establish a three-dimensional geometric model of the support structure; The physical properties and the boundary conditions are added to the three-dimensional geometric model to obtain the three-dimensional initial model.

3. According to the BIM-based building support structure stress analysis method of claim 1, it is characterized in that: The S2 includes: Acquiring initial model information based on the three-dimensional initial model, including the material properties and environmental effect data of each component of the model; Integrating the material properties and the environmental action data through a data fusion algorithm, and generating a comprehensive force distribution based on the boundary conditions; The three-dimensional initial model is divided into fine grids based on the comprehensive force distribution, and the divided model is processed using the finite element analysis method to establish the force calculation model.

4. According to the BIM-based building support structure stress analysis method of claim 1, it is characterized in that: The S3 includes: Acquiring the design data of the force calculation model, and discretizing the force calculation model using a finite element analysis method to obtain a grid model; Performing stress-strain analysis on the grid model, calculating the stress state of each node in the model, and adjusting the design data through an iterative optimization algorithm to update the stress calculation model; For the updated force calculation model, the design data of the model is converted into a data format, and a data consistency check algorithm is used to verify the integrity of the converted data to obtain the unified model.

5. The method for analyzing the stress of a building support structure based on BIM according to claim 1, characterized in that: The S4 includes: Calculating the displacement and unit stress of each node in the unified model based on the stress-strain analysis method to obtain preliminary force result data; Performing statistical analysis on the force result data, calculating the mean value and standard deviation of each group of data, and determining the deviation value based on the calculation results; The size between the deviation value and the preset threshold is determined. If the deviation value is greater than the preset threshold, the parameter adjustment process is entered, and the unified model parameters are optimized and recalculated using the gradient descent algorithm until the deviation value is less than the preset threshold to obtain the final force analysis result.

6. A BIM-based building support structure stress analysis system, the system is used to implement the method according to any one of claims 1 to 5, characterized in that: Including: initial model building module, force model building module, unified model building module and force analysis module; The initial model building module is used to obtain the design data of the support structure and generate a three-dimensional initial model including geometric features, physical properties and boundary conditions through BIM technology; The force model building module is used to extract material properties and environmental action data from the three-dimensional initial model, and integrate the physical properties and the boundary conditions through finite element analysis to obtain a force calculation model; The unified model building module is used to perform stress-strain analysis on the model using a finite element analysis method according to the force calculation model, and to update the force calculation model to obtain a unified model; The force analysis module calculates the force distribution of the unified model support structure through a simulation analysis algorithm to obtain preliminary force result data, and extracts a deviation value from the force result data. If the deviation value is greater than a preset threshold, the parameters of the unified model are adjusted and recalculated until the deviation value is less than the preset threshold to obtain the final force analysis result.

7. An electronic device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor. When the processor executes the program, the method for stress analysis of a building support structure based on BIM as described in any one of claims 1 to 5 is implemented.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed, the BIM-based building support structure stress analysis method as described in any one of claims 1 to 5 is implemented.

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