A steel structure virtual optimization and assembly method and system based on a BIM model

Abstract

The application provides a steel structure virtual optimization and assembling method and system based on a BIM model, and relates to the field of building information technology, wherein the method comprises the following steps: obtaining mechanical parameters and structural parameters of a plurality of steel components, and simultaneously obtaining geological parameters and original equipment installation structure data of a to-be-installed area; establishing a corresponding BIM steel structure virtual model according to the mechanical parameters and the structural parameters, and simultaneously establishing a corresponding BIM building virtual model in combination with the geological parameters and the original equipment installation structure data; and performing simulation and simulation assembling on the BIM steel structure virtual model and the BIM building virtual model; and the application relies on a BIM model and a risk prediction model to improve construction efficiency and the intelligent level of steel structure construction through virtual simulation and assembling and optimization, and reduces human errors.

Description

Technical Field

[0001] This invention relates to the field of building information technology, and more specifically to a method and system for virtual optimization and assembly of steel structures based on BIM models. Background Technology

[0002] Currently, for complex steel structures, in order to ensure accurate and smooth on-site installation, it is often necessary to conduct simulation pre-assembly of the actual steel components so that timely rectification and reduction of cumulative errors can be carried out when deviations occur in the actual components.

[0003] However, when steel components are diverse and complex, and due to the presence of existing pipelines and building structures at the construction site, there is a possibility of collision and interference. When optimizing the performance of the steel structure formed by the steel components, the impact of other building structures and pipelines on its structural performance is not considered, and the mechanical performance of the steel structure cannot be guaranteed.

[0004] Therefore, how to provide a virtual optimization and assembly method for steel structures that can solve the above problems is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a method and system for virtual optimization and assembly of steel structures based on BIM models. Through virtual simulation assembly and optimization, relying on BIM models and risk prediction models, it improves construction efficiency and the level of intelligence in steel structure construction, and reduces human error.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A method for virtual optimization and assembly of steel structures based on BIM models includes the following steps: The mechanical and structural parameters of multiple steel components are obtained, along with the geological parameters of the area to be installed and the original equipment installation structure data. A corresponding BIM steel structure virtual model is established based on the mechanical and structural parameters, and a corresponding BIM building virtual model is established by combining the geological parameters and the original equipment installation structure data. The BIM steel structure virtual model and the BIM building virtual model are simulated and assembled.

[0007] Preferred options also include: During the simulation assembly process, the BIM steel structure virtual model is optimized to obtain an optimized BIM steel structure virtual model.

[0008] Preferred options also include: After the simulation assembly is completed, the safety risk prediction of the comprehensive virtual model obtained by the simulation assembly is carried out to determine whether any safety risks will occur.

[0009] Preferably, the specific processing steps to obtain the optimized BIM steel structure virtual model include: Based on the mechanical and structural parameters of multiple steel components, the mechanical properties of the BIM steel structure virtual model are predicted to obtain the corresponding mechanical property prediction results, and the structure of the BIM steel structure virtual model is optimized based on the mechanical property prediction results. Simulation installation analysis is performed on the BIM building virtual model and the BIM steel structure virtual model to determine the relative positions between the models; Determine the assembly sequence of the BIM steel structure virtual model, and simulate assembly based on the relative positions; During the simulated assembly process, installation risks are predicted, and the results of the installation risk prediction are used to determine whether the mechanical performance prediction results need to be adjusted. The BIM steel structure virtual model is optimized based on the adjustment results to obtain the optimized BIM steel structure virtual model.

[0010] Preferably, the specific process for determining whether the mechanical performance prediction results need to be adjusted based on the installation risk prediction results includes: The assembly sequence, mechanical parameters, structural parameters, and relative positions are preprocessed. A risk prediction model is constructed, and the preprocessed installation sequence, mechanical parameters, structural parameters, and relative positions are input into the risk prediction model for processing to obtain the risk prediction results and the corresponding risk thresholds. No adjustment is made when the risk prediction result is less than the risk threshold. When the risk prediction result is greater than or equal to the risk threshold, the risk prediction result is analyzed and a decision is made to obtain the corresponding optimization scheme, and the BIM steel structure virtual model is adjusted according to the optimization scheme.

[0011] Preferably, the specific process of adjusting the BIM steel structure virtual model according to the optimization scheme further includes: The optimized BIM steel structure virtual model is subjected to mechanical property prediction again to obtain new mechanical property prediction results; The process ends when the new mechanical property prediction results meet the preset requirements.

[0012] Preferably, the specific processing steps for predicting safety risks in the comprehensive virtual model obtained through simulation assembly include: The system acquires environmental data and emergency event data of the area to be installed within a preset time period, processes the environmental data and emergency event data to form corresponding mutation factor feature vectors, and analyzes the comprehensive virtual model to obtain the corresponding model feature vectors. The mutation factor feature vector and the model feature vector are input into the risk prediction model to predict the risk and determine whether a safety risk will occur.

[0013] This invention also provides a BIM model-based virtual optimization and assembly system for steel structures, comprising: The acquisition module is used to acquire the mechanical and structural parameters of multiple steel components, as well as the geological parameters of the area to be installed and the original equipment installation structure data. The model building module is used to establish a corresponding BIM steel structure virtual model based on the mechanical parameters and structural parameters, and at the same time, to establish a corresponding BIM building virtual model by combining the geological parameters and the original equipment installation structure data. The simulation module is used to simulate and assemble the BIM steel structure virtual model and the BIM building virtual model. The optimization module is used to optimize the BIM steel structure virtual model during the simulation assembly process to obtain an optimized BIM steel structure virtual model.

[0014] The risk prediction module is used to predict the safety risks of the integrated virtual model obtained after the simulation assembly is completed, and to determine whether any safety risks will occur.

[0015] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a method and system for virtual optimization and assembly of steel structures based on BIM models, which has the following beneficial effects: 1. This invention reduces the rework rate of on-site assembly through virtual simulation assembly and optimization, avoids work stoppages and rework caused by safety risks and unreasonable models, and shortens the optimization and construction cycle, improves construction efficiency, and reduces human, material and financial costs. 2. This invention relies on BIM models and risk prediction models to replace the traditional assembly, optimization and risk prediction mode that depends on manual experience, reduce human error, improve the scientificity and intelligence of construction plans, and adapt to the intelligent development needs of modern steel structure construction. 3. This invention can be adapted to steel structure assembly projects of different types and working conditions. It can be applied to more scenarios by adjusting parameters and optimizing the risk prediction model, and has good promotion value and reusability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 The present invention provides an overall flowchart of a BIM model-based virtual optimization and assembly method for steel structures. Figure 2 This invention provides a structural principle block diagram of a BIM-based virtual optimization and assembly system for steel structures. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] See Figure 1 As shown in the figure, this invention discloses a method for virtual optimization and assembly of steel structures based on a BIM model, including the following steps: The mechanical and structural parameters of multiple steel components are obtained, along with the geological parameters of the area to be installed and the original equipment installation structure data. The mechanical parameters may include the tensile strength, shear strength, elastic modulus, Poisson's ratio, etc. of the steel component material, while the structural parameters may include the length, cross-sectional dimensions, cross-sectional shape, opening location and size, connection node type, number of components, etc. The above parameters are used to completely reconstruct the structural morphology of the steel components. Geological parameters may include parameters such as geological strata distribution, groundwater level, soil moisture content, and foundation settlement. Original equipment installation structure data may include relevant installation parameters of existing equipment and existing pipeline data in the area to be installed, which are used to reconstruct the operating conditions of equipment and pipelines in the area to be installed. A corresponding BIM steel structure virtual model is established based on the mechanical and structural parameters, and a corresponding BIM building virtual model is established by combining the geological parameters and the original equipment installation structure data. This process is achieved through BIM modeling software. The BIM steel structure virtual model and the BIM building virtual model are simulated and assembled. During the simulation assembly process, geometric algorithms are used to check the relative positions and overlaps between the models, establish the association and dependency relationships between the models, and realize the integration of multiple models.

[0020] In one specific embodiment, it also includes: During the simulation assembly process, the BIM steel structure virtual model is optimized to obtain an optimized BIM steel structure virtual model.

[0021] In one specific embodiment, it also includes: After the simulation assembly is completed, the safety risk prediction of the comprehensive virtual model obtained by the simulation assembly is carried out to determine whether any safety risks will occur.

[0022] In a specific embodiment, the specific processing steps to obtain the optimized BIM steel structure virtual model include: Based on the mechanical and structural parameters of multiple steel components, the mechanical properties of the BIM steel structure virtual model are predicted to obtain corresponding mechanical property prediction results. The BIM steel structure virtual model is then structurally optimized based on these prediction results. The mechanical property prediction process can be implemented using finite element analysis software. The prediction results can include data such as stress distribution, strain, deflection value, and ultimate bearing capacity of the steel components. In this embodiment of the invention, based on the mechanical property prediction results and in conjunction with steel component design specifications and engineering construction requirements, preliminary structural optimization of the BIM steel structure virtual model can be performed. If the prediction results show that a certain steel component has excessive stress, excessive deflection, or insufficient bearing capacity, the cross-sectional dimensions and cross-sectional form of the component are adjusted, or the connection node structure is optimized to ensure that the mechanical properties of the BIM steel structure virtual model meet design requirements and safety standards. Simulation installation analysis is performed on the BIM building virtual model and the BIM steel structure virtual model to determine the relative positions between the models; Determine the assembly sequence of the BIM steel structure virtual model, and simulate assembly based on the relative positions; During the simulated assembly process, installation risks are predicted, and the results of the installation risk prediction are used to determine whether the mechanical performance prediction results need to be adjusted. The BIM steel structure virtual model is optimized based on the adjustment results to obtain the optimized BIM steel structure virtual model.

[0023] In a specific embodiment, the process of determining whether the mechanical performance prediction results need to be adjusted based on the installation risk prediction results includes: The assembly sequence, mechanical parameters, structural parameters, and relative positions are preprocessed. A risk prediction model is constructed, and the preprocessed installation sequence, mechanical parameters, structural parameters, and relative positions are input into the risk prediction model for processing to obtain the risk prediction results and the corresponding risk thresholds. No adjustment is made when the risk prediction result is less than the risk threshold. When the risk prediction result is greater than or equal to the risk threshold, the risk prediction result is analyzed and a decision is made to obtain the corresponding optimization scheme, and the BIM steel structure virtual model is adjusted according to the optimization scheme.

[0024] In one specific embodiment, the specific process of adjusting the BIM steel structure virtual model according to the optimization scheme further includes: The optimized BIM steel structure virtual model is subjected to mechanical property prediction again to obtain new mechanical property prediction results; The process ends when the new mechanical property prediction results meet the preset requirements.

[0025] In a specific embodiment, the specific process for predicting the safety risks of the integrated virtual model obtained through simulation assembly includes: The system acquires environmental data and emergency event data of the area to be installed within a preset time period, processes the environmental data and emergency event data to form corresponding mutation factor feature vectors, and analyzes the comprehensive virtual model to obtain the corresponding model feature vectors. The mutation factor feature vector and the model feature vector are input into the risk prediction model to predict the risk and determine whether a safety risk will occur.

[0026] Specifically, it may also include: By acquiring and analyzing the expected construction data in the area to be installed through big data, it is determined whether the expected construction data interferes with the comprehensive virtual model. If it does interfere, the relevant parameters of both are combined to make a decision and determine the corresponding optimal installation plan.

[0027] See Figure 2 As shown, this embodiment of the invention also provides a system for the BIM model-based virtual optimization and assembly method of steel structures described in any of the above embodiments, comprising: The acquisition module is used to acquire the mechanical and structural parameters of multiple steel components, as well as the geological parameters of the area to be installed and the original equipment installation structure data. The model building module is used to establish a corresponding BIM steel structure virtual model based on the mechanical parameters and structural parameters, and at the same time, to establish a corresponding BIM building virtual model by combining the geological parameters and the original equipment installation structure data. The simulation module is used to simulate and assemble the BIM steel structure virtual model and the BIM building virtual model. The optimization module is used to optimize the BIM steel structure virtual model during the simulation assembly process to obtain an optimized BIM steel structure virtual model.

[0028] The risk prediction module is used to predict the safety risks of the integrated virtual model obtained after the simulation assembly is completed, and to determine whether any safety risks will occur.

[0029] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for virtual optimization and assembly of steel structures based on a BIM model, characterized in that, Includes the following steps: The mechanical and structural parameters of multiple steel components are obtained, along with the geological parameters of the area to be installed and the original equipment installation structure data. A corresponding BIM steel structure virtual model is established based on the mechanical and structural parameters, and a corresponding BIM building virtual model is established by combining the geological parameters and the original equipment installation structure data. The BIM steel structure virtual model and the BIM building virtual model are simulated and assembled.

2. The method for virtual optimization and assembly of steel structures based on a BIM model according to claim 1, characterized in that, Also includes: During the simulation assembly process, the BIM steel structure virtual model is optimized to obtain an optimized BIM steel structure virtual model.

3. The method for virtual optimization and assembly of steel structures based on a BIM model according to claim 2, characterized in that, Also includes: After the simulation assembly is completed, the safety risk prediction of the comprehensive virtual model obtained by the simulation assembly is carried out to determine whether any safety risks will occur.

4. The method for virtual optimization and assembly of steel structures based on a BIM model according to claim 2, characterized in that, The specific processing steps to obtain the optimized BIM steel structure virtual model include: Based on the mechanical and structural parameters of multiple steel components, the mechanical properties of the BIM steel structure virtual model are predicted to obtain the corresponding mechanical property prediction results, and the structure of the BIM steel structure virtual model is optimized based on the mechanical property prediction results. Simulation installation analysis is performed on the BIM building virtual model and the BIM steel structure virtual model to determine the relative positions between the models; Determine the assembly sequence of the BIM steel structure virtual model, and simulate assembly based on the relative positions; During the simulated assembly process, installation risks are predicted, and the results of the installation risk prediction are used to determine whether the mechanical performance prediction results need to be adjusted. The BIM steel structure virtual model is optimized based on the adjustment results to obtain the optimized BIM steel structure virtual model.

5. The method for virtual optimization and assembly of steel structures based on a BIM model according to claim 4, characterized in that, The specific process for determining whether the mechanical performance prediction results need to be adjusted based on the installation risk prediction results includes: The assembly sequence, mechanical parameters, structural parameters, and relative positions are preprocessed. A risk prediction model is constructed, and the preprocessed installation sequence, mechanical parameters, structural parameters, and relative positions are input into the risk prediction model for processing to obtain the risk prediction results and the corresponding risk thresholds. No adjustment is made when the risk prediction result is less than the risk threshold. When the risk prediction result is greater than or equal to the risk threshold, the risk prediction result is analyzed and a decision is made to obtain the corresponding optimization scheme, and the BIM steel structure virtual model is adjusted according to the optimization scheme.

6. The method for virtual optimization and assembly of steel structures based on a BIM model according to claim 5, characterized in that, The specific process of adjusting the BIM steel structure virtual model according to the optimization scheme also includes: The optimized BIM steel structure virtual model is subjected to mechanical property prediction again to obtain new mechanical property prediction results; The process ends when the new mechanical property prediction results meet the preset requirements.

7. The method for virtual optimization and assembly of steel structures based on a BIM model according to claim 3, characterized in that, The specific processing steps for predicting safety risks in the comprehensive virtual model obtained through simulation and assembly include: The system acquires environmental data and emergency event data of the area to be installed within a preset time period, processes the environmental data and emergency event data to form corresponding mutation factor feature vectors, and analyzes the comprehensive virtual model to obtain the corresponding model feature vectors. The mutation factor feature vector and the model feature vector are input into the risk prediction model to predict the risk and determine whether a safety risk will occur.

8. A system utilizing the BIM model-based virtual optimization and assembly method for steel structures as described in any one of claims 1-7, characterized in that, include: The acquisition module is used to acquire the mechanical and structural parameters of multiple steel components, as well as the geological parameters of the area to be installed and the original equipment installation structure data. The model building module is used to establish a corresponding BIM steel structure virtual model based on the mechanical parameters and structural parameters, and at the same time, to establish a corresponding BIM building virtual model by combining the geological parameters and the original equipment installation structure data. The simulation module is used to simulate and assemble the BIM steel structure virtual model and the BIM building virtual model. The optimization module is used to optimize the BIM steel structure virtual model during the simulation assembly process to obtain an optimized BIM steel structure virtual model. The risk prediction module is used to predict the safety risks of the integrated virtual model obtained after the simulation assembly is completed, and to determine whether any safety risks will occur.

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