A method and system for determining the installation sequence of a large-span structure

Abstract

The present invention discloses a method and system for determining the installation sequence of a large-span structure, and relates to the field of installation sequence determination. The method includes: determining the target area, obtaining the actual situation on site, determining temporary supports, and constructing a digital twin three-dimensional model; simulating the digital twin three-dimensional model to obtain a complete installation sequence method; calculating the ratio of the maximum stress of the structural rod to its allowable bearing stress based on the complete installation sequence method to obtain the rod stress ratio; setting the standard rod stress ratio to 1, and comparing according to the rod stress ratio to obtain the retained rod stress ratio; obtaining the corresponding installation sequence method based on the rod stress ratio, constructing an implementation plan extraction module, and outputting an implementation plan. This method solves the technical problem of the difficulty in selecting the rod installation sequence during the construction of large-span engineering structures, and achieves the technical effect of intelligently selecting and optimizing the installation sequence of large-span structures.

Description

Technical Field

[0001] The present application relates to the technical field of installation sequence determination, and specifically to a method and system for determining the installation sequence of a large-span structure. Background Art

[0002] During the installation and assembly of the rods of the large-span engineering structure, temporary supports are set up first according to the actual situation on site, and then the rods are installed to finally form the working state of the structure. During the construction process, the number of rods installed changes continuously with the progress, the force form of the structure changes continuously, the constraint state of the structural rods is also constantly changing and adjusting, and the actual stress state of the structural rods is also changing and adjusting accordingly. This application combines the bearing capacity and the construction and installation process to solve the problem of selecting the installation order of rods in the construction process of large-span engineering structures in the prior art.

[0003] In summary, the prior art has a technical problem of difficulty in selecting the installation sequence of rods during the construction of large-span engineering structures. Summary of the invention

[0004] Based on this, it is necessary to provide a method and system for determining the installation sequence of large-span structures that can intelligently select an optimized installation sequence of large-span structures in response to the above-mentioned technical problems.

[0005] In a first aspect, a method for determining the installation sequence of a large-span structure is provided, the method comprising: determining a target area, obtaining actual on-site conditions, determining temporary supports based on the actual on-site conditions, and constructing a digital twin three-dimensional model; simulating the digital twin three-dimensional model to obtain a complete installation sequence method; calculating the ratio of the maximum stress of a structural member to its allowable bearing stress based on the complete installation sequence method to obtain a member stress ratio; setting a standard member stress ratio to 1, performing a comparison based on the member stress ratio, and retaining the member stress ratio when it is less than the standard member stress ratio to obtain a retained member stress ratio; obtaining a corresponding installation sequence method based on the member stress ratio, constructing an implementation plan extraction module, inputting the corresponding installation sequence method into the implementation plan extraction module, and outputting an implementation plan.

[0006] In a second aspect, a system for determining the installation sequence of a large-span structure is provided, the system comprising: a digital twin three-dimensional model construction module, the digital twin three-dimensional model construction module is used to determine the target area, obtain the actual situation on site, determine temporary support based on the actual situation on site, and construct a digital twin three-dimensional model; a complete installation sequence method acquisition module, the complete installation sequence method acquisition module is used to simulate the digital twin three-dimensional model and obtain a complete installation sequence method; a rod stress ratio acquisition module, the rod stress ratio acquisition module is used to calculate the ratio of the maximum stress of the structural rod and its allowable bearing stress based on the complete installation sequence method, and obtain the rod stress ratio; a reserved rod stress ratio acquisition module, the reserved rod stress ratio acquisition module is used to set the standard rod stress ratio to 1, compare according to the rod stress ratio, and when the rod stress ratio is less than the standard rod stress ratio, retain it to obtain the reserved rod stress ratio; an implementation plan output module, the implementation plan output module is used to obtain the corresponding installation sequence method based on the rod stress ratio, construct an implementation plan extraction module, input the corresponding installation sequence method into the implementation plan extraction module, and output the implementation plan.

[0007] According to a third aspect, a computer device is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps according to the first aspect when executing the computer program.

[0008] According to a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the steps described in the first aspect are implemented.

[0009] The above-mentioned method and system for determining the installation sequence of large-span structures use this method to solve the technical problem of difficult selection of rod installation sequence during the construction of large-span engineering structures, and achieves the technical effect of intelligently selecting and optimizing the installation sequence of large-span structures.

[0010] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic flow chart of a method for determining the installation sequence of a large-span structure in one embodiment;

[0012] Figure 2 A flowchart of a method for obtaining a serialized corresponding installation sequence of a method for determining an installation sequence of a large-span structure in an embodiment;

[0013] Figure 3 is a structural block diagram of a system for determining the installation sequence of a large-span structure in one embodiment;

[0014] Figure 4 is an internal structure diagram of a computer device in one embodiment;

[0015] Figure 5 This is a structural diagram of the installation of internal and external cantilevered steel structure trusses in an embodiment.

[0016] Explanation of the accompanying drawings: digital twin three-dimensional model construction module 11, complete installation sequence method acquisition module 12, rod stress ratio acquisition module 13, retained rod stress ratio acquisition module 14, implementation plan output module 15, first rod ①, second rod ②, third rod ③, fourth rod ④. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0018] like Figure 1 As shown, the present application provides a method for determining the installation sequence of a large-span structure, the method comprising:

[0019] Determine the target area, obtain the actual situation on site, determine temporary support based on the actual situation on site, and build a digital twin 3D model;

[0020] A large-span structure refers to an engineering structure such as a building or bridge with a large span, which is characterized by being able to span a long distance without intermediate supports. The installation of a large-span structure is a complex and important engineering process involving multiple key steps and considerations. In this application, a method for determining the installation sequence of a large-span structure is provided to solve the problem of selecting the installation sequence of rods during the construction of a large-span engineering structure.

[0021] The target area refers to any area where the large-span structure is installed, which is recorded as the target area. The actual situation on site is obtained according to the target area. The actual situation on site includes the layout of structural components, the distribution of the construction site and the implementation of machinery. Through field investigation in the target area, through observation, measurement and recording, the drawings, construction plans, technical specifications and other document materials related to the target area are collected, and the data obtained from the field investigation and data collection are sorted out to form complete information on the actual situation on site. According to the actual situation on site, the structural characteristics of the target area are analyzed, including the main load-bearing components, stress conditions, etc. According to the structural characteristics and construction requirements, the type, location and number of temporary supports are determined, and a temporary support plan is formulated. According to the actual situation on site report and the temporary support plan, a three-dimensional scene of the target area is established in the modeling software, and the temporary support is input into the three-dimensional scene to obtain a digital twin three-dimensional model. The temporary support is determined based on the actual situation on site of the target area, and the corresponding digital twin three-dimensional model is constructed to provide strong support for subsequent construction simulation, optimization and decision-making.

[0022] According to the target area, the actual situation on site is obtained, wherein the actual situation on site includes the arrangement of structural components, the distribution of the construction site and the implementation of mechanical conditions;

[0023] Determine temporary support based on the actual situation on site, the temporary support including the location and number of temporary support points;

[0024] Building a three-dimensional model based on the actual situation on site;

[0025] A temporary support method is obtained according to the actual on-site situation, and the temporary support method is imported into the three-dimensional model to obtain a digital twin three-dimensional model.

[0026] According to the target area, the actual situation on site is obtained, and the actual situation on site includes the arrangement of structural components, the distribution of the construction site and the implementation of mechanical conditions, wherein the arrangement of structural components includes detailed recording of the location, size and connection method of structural components, such as beams, columns, plates, etc., and the distribution of the construction site includes the layout of the construction site, including roads, material storage areas, temporary facilities, etc.; the implementation of mechanical conditions includes recording the type, quantity and use status of mechanical equipment used on the construction site; according to the obtained structural characteristics and construction requirements, the demand for temporary support is determined, and according to the structural characteristics and construction requirements, the appropriate temporary support point position is selected, and the number of temporary support points required is calculated based on the bearing capacity of the structure and the force conditions during the construction process, and the three-dimensional modeling software is used to construct a three-dimensional model of the target area according to the actual situation on site, and based on the demand for temporary support and the actual situation on site, a detailed temporary support method is formulated, including the selection of support materials, installation steps, etc.; the formulated temporary support method is imported into the constructed three-dimensional model. That is, a temporary support component is added to the model, and the corresponding properties and parameters are set. By integrating the actual on-site conditions and temporary support methods, a digital twin 3D model is ultimately generated. This model not only reflects the actual conditions of the target area, but also includes temporary support measures during the construction process, providing strong support for subsequent construction simulation, optimization, and decision-making.

[0027] Simulating the digital twin three-dimensional model to obtain a complete installation sequence method;

[0028] The digital twin 3D model is simulated. According to the actual construction plan and requirements, simulation parameters are set. The entire installation process, including the hoisting, positioning, and connection of components, is simulated through the simulation function of the software. After multiple simulations, the multiple simulations refer to simulating different installation sequences and determining the complete installation sequence method. Taking the installation of an external cantilever steel structure truss as an example, Figure 5 As shown in Table 1, ①, ②, ③, and ④ are the numbers of the external cantilever steel structure truss members; there are 47 complete installation sequence methods, as shown in Table 1:

[0029] Table 1: Complete installation sequence method table

[0030]

[0031]

[0032] Through the simulation of the digital twin three-dimensional model, the complete installation sequence method can be obtained, providing technical support for the subsequent selection of the best implementation plan.

[0033] Calculate the ratio of the maximum stress of the structural member to its allowable bearing stress based on the complete installation sequence method to obtain the member stress ratio;

[0034] Through the simulation of the digital twin 3D model, a complete installation sequence method is obtained. According to the complete installation sequence method, the stress conditions of each structural rod during the installation process are analyzed, including the tension, pressure, bending moment, etc. of the rod; the maximum stress of each rod during the installation process is calculated using the basic principles and formulas of structural mechanics; the allowable bearing stress is the maximum stress that the rod material can safely withstand under specific conditions; the maximum stress of each rod is divided by its allowable bearing stress to obtain the stress ratio. This ratio reflects the safety margin of the rod under actual stress conditions. The rod stress ratio provides a foundation for the subsequent implementation plan evaluation.

[0035] Based on the complete installation sequence method, the maximum stress of the structural member and its allowable bearing stress are obtained;

[0036] Obtain the member stress ratio value according to the calculation formula, which is as follows:

[0037]

[0038] Among them, σ wki It refers to the maximum stress of the i-th member of the structure under the k-th complete installation sequence method, σ yki is the allowable stress of the i member of the structure under the kth complete installation sequence method, and k is a positive integer.

[0039] According to the complete installation sequence method, the maximum stress and allowable bearing stress of each structural member during the installation process are determined, and the member stress ratio is calculated using the given formula, where σ wki It refers to the maximum stress of the i-th member of the structure under the k-th complete installation sequence method, σ yki is the allowable stress of the structure i member under the kth complete installation sequence method, and k is a positive integer. By obtaining the member stress ratio, it provides a foundation for the judgment of the subsequent implementation plan.

[0040] Set the standard rod stress ratio to 1, perform comparison based on the rod stress ratio, and when the rod stress ratio is less than the standard rod stress ratio, retain it to obtain the reserved rod stress ratio;

[0041] The standard rod stress ratio is set to 1, which means that the actual stress of the rod should not exceed its allowable bearing stress. Generally speaking, if the stress ratio is less than 1, it means that the rod is within the safe range; if it is close to or exceeds 1, there may be safety hazards. Comparison is made based on the rod stress ratio. When the rod stress ratio is less than the standard rod stress ratio, it is added to the reserved rod stress ratio for screening. After the screening is completed, a stress ratio set containing only safe rods, that is, rods with a stress ratio less than 1, is obtained, that is, the reserved rod stress ratio. By retaining the rod stress ratio, subsequent implementation plans can be better selected.

[0042] Set the standard bar stress ratio to 1;

[0043] Traversing the stress ratio values ​​of the rods and comparing them with the stress ratio values ​​of the standard rods;

[0044] When the stress ratio of the rod is greater than the stress ratio of the standard rod, it is eliminated;

[0045] When the rod stress ratio is less than the standard rod stress ratio, it is retained to obtain the retained rod stress ratio.

[0046] The standard rod stress ratio is set to 1, which is determined based on the safety requirements of the structural design. In this application, it is set to 1, which means that the actual stress of the rod should not exceed its allowable bearing stress. The stress ratio of each rod is queried in turn and compared with the standard rod stress ratio. When the rod stress ratio is greater than the standard rod stress ratio, the rod stress ratio greater than the standard rod stress ratio is removed from the standard rod stress ratio. When the rod stress ratio is less than the standard rod stress ratio, it is retained to obtain the retained rod stress ratio; if the rod stress ratio is greater than the standard value, it means that these rods may be unsafe, and the rod stress ratio is automatically removed during the traversal process. By obtaining the retained rod stress ratio, data support is provided for the subsequent construction of the implementation plan extraction module.

[0047] A corresponding installation sequence method is obtained based on the rod stress ratio, an implementation plan extraction module is constructed, the corresponding installation sequence method is input into the implementation plan extraction module, and an implementation plan is output.

[0048] Analyze the influence of the rod stress ratio on the installation sequence. For example, the rods with smaller stress ratios can be installed first to ensure the stability of the structure during the subsequent installation process. According to the size of the rod stress ratio, a reasonable installation sequence method is formulated, and a module that can receive the installation sequence method as input and output a specific implementation plan is designed; an interface is created to receive the rod stress ratio data and the installation sequence method; inside the module, the logic is implemented to generate a specific implementation plan based on the input rod stress ratio and the installation sequence method. The installation sequence method is input into the implementation plan extraction module, and the implementation plan extraction module generates a specific implementation plan based on the input installation sequence method and the rod stress ratio data, and outputs it. The corresponding installation sequence method is obtained based on the rod stress ratio, and an extraction module that can output a specific implementation plan is constructed. This helps to guide the installation sequence of rods in actual projects and improve construction efficiency and structural safety.

[0049] like Figure 2As shown, a corresponding installation sequence method is obtained based on the rod stress ratio, an installation sequence is determined based on the installation sequence method, and the installation sequence is divided into specific steps;

[0050] According to the data of the specific steps, the corresponding installation sequence method is serialized to obtain the serialized corresponding installation sequence method.

[0051] According to the magnitude of the stress ratio of the rod, the installation sequence method is determined, which involves prioritizing the rods to ensure that key rods or rods with lower stress ratios are installed first. Based on the installation sequence method obtained above, the installation sequence of each rod is clarified, and then as shown in Table 1, the installation sequence is refined into specific steps; for example, the installation sequence is to install ①, ② first, and then install ③, ④, then the specific steps are 2 steps; the installation sequence method is sorted according to the specific steps to obtain the corresponding installation sequence method sequence from large to small, that is, the serialized corresponding installation sequence method. The corresponding installation sequence method is obtained based on the rod stress ratio, and it is serialized into a standardized format to provide data support for the subsequent output implementation plan.

[0052] Constructing an implementation plan extraction module, wherein the input data of the implementation plan extraction module is the serialization corresponding installation sequence method, and the output data is the implementation plan;

[0053] Get the corresponding function of the implementation scheme extraction module:

[0054] Objectf=min(Steps) k ,

[0055] Among them, min(Steps) k The method with the least number of installation steps among the installation sequence methods corresponding to the serialization, Objectf represents the objective function;

[0056] Perform minimum value extraction on the serialization corresponding installation sequence method to obtain N corresponding installation sequence methods, where N is a positive integer;

[0057] When N=1, there is only one corresponding installation sequence method, and an implementation plan is output.

[0058] Construct an implementation scheme extraction module, the input data of the implementation scheme extraction module is the serialization corresponding installation sequence method, and the output data is the implementation scheme, which refers to the installation sequence of the large-span structure finally selected; define the corresponding function of the implementation scheme extraction module, the corresponding function is used to evaluate the number of installation steps in the serialization corresponding installation sequence method, and the function goal is to find the method with the least installation steps. The implementation scheme extraction module will use the above Objectf function to evaluate different serialization installation sequence methods, and find the serialization corresponding installation sequence method with the least installation steps, and process the serialization corresponding installation sequence method to find N corresponding installation sequence methods with the least installation steps. This can be achieved by sorting the serialization method list. When N=1, there is only one corresponding installation sequence method, and the corresponding installation sequence method is output as an implementation scheme. Extract the implementation scheme according to the serialization corresponding installation sequence method, and find N solutions with the least installation steps as needed.

[0059] When N≠1, obtaining the corresponding rod stress ratio value of the corresponding installation sequence method;

[0060] Serializing the corresponding rod stress ratio values, and extracting the minimum value of the corresponding rod stress ratio values;

[0061] The corresponding installation sequence method is obtained according to the minimum value of the corresponding rod stress ratio, and the corresponding installation sequence method is output as an implementation plan.

[0062] When N≠1, it means that there are multiple corresponding installation sequence methods. The corresponding rod stress ratio is extracted from each serialized corresponding installation sequence method; the corresponding rod stress ratio is sorted according to size to obtain a data structure that is easy to process from large to small / or small to large, and the corresponding installation sequence method is obtained according to the minimum value of the corresponding rod stress ratio, and the installation sequence is determined to be more optimized. According to the minimum value of the rod stress ratio of each installation sequence method, the optimal installation sequence method is selected as the implementation plan. As shown in Table 1, the maximum stress σ of the structural rod under 47 installation sequence methods is calculated. wki , allowable stress σ yki , on this basis, the stress ratio is calculated: There are 28 installation sequence methods for selecting stress ratios less than 1, as shown in Table 2:

[0063] Table 2

[0064]

[0065] Among the 28 installation sequence methods with a member stress ratio value less than 1, two installation methods with the least number of installation steps for the overall large-span structure are selected, as shown in Table 3:

[0066] Table 3

[0067] Method No. Installation Order 45 ①②，③④ 47 ②③，①④

[0068] Comparing the ratio of the maximum stress of the rod to its allowable bearing stress of the two installation methods, the ratio of No. 45 is smaller and safer, so No. 45 method is selected as the implementation plan for output. The implementation plan is selected by comprehensively considering the number of installation steps and the rod stress ratio. When the ratio of the maximum stress of each rod of the structure to its allowable bearing stress is less than 1 during the construction and installation process, the minimum number of structural installation steps (batches) is taken as the goal to shorten the construction period.

[0069] like Figure 3 As shown, an embodiment of the present application includes a system for determining the installation sequence of a large-span structure, the system comprising:

[0070] A digital twin three-dimensional model construction module 11, the digital twin three-dimensional model construction module 11 is used to determine the target area, obtain the actual situation on site, determine temporary support based on the actual situation on site, and construct a digital twin three-dimensional model;

[0071] A complete installation sequence method acquisition module 12, wherein the complete installation sequence method acquisition module 12 is used to simulate the digital twin three-dimensional model to obtain a complete installation sequence method;

[0072] A rod stress ratio obtaining module 13, wherein the rod stress ratio obtaining module 13 is used to calculate the ratio of the maximum stress of the structural rod and its allowable bearing stress based on the complete installation sequence method, and obtain the rod stress ratio;

[0073] A reserved rod stress ratio obtaining module 14, wherein the reserved rod stress ratio obtaining module 14 is used to set the standard rod stress ratio to 1, compare the rod stress ratio, and when the rod stress ratio is less than the standard rod stress ratio, retain the rod stress ratio to obtain the reserved rod stress ratio;

[0074] The implementation plan output module 15 is used to obtain the corresponding installation sequence method based on the rod stress ratio, construct an implementation plan extraction module, input the corresponding installation sequence method into the implementation plan extraction module, and output the implementation plan.

[0075] Furthermore, the embodiment of the present application also includes:

[0076] A module for obtaining the actual situation on site according to the target area, wherein the actual situation on site includes the layout of structural components, the distribution of the construction site and the implementation of mechanical conditions;

[0077] A temporary support determination module, which is used to determine temporary support based on the actual situation on site, wherein the temporary support includes the location and number of temporary support points;

[0078] A three-dimensional model building module, wherein the three-dimensional model building module is used to build a three-dimensional model based on the actual situation on site;

[0079] A digital twin three-dimensional model acquisition module is used to obtain a temporary support method according to the actual situation on site, import the temporary support method into the three-dimensional model, and obtain a digital twin three-dimensional model.

[0080] Furthermore, the embodiment of the present application also includes:

[0081] A stress acquisition module, wherein the stress acquisition module is used to obtain the maximum stress of the structural member and its allowable bearing stress based on the complete installation sequence method;

[0082] The rod stress ratio acquisition module is used to obtain the rod stress ratio according to the calculation formula, and the formula is as follows:

[0083]

[0084] Among them, σ wki It refers to the maximum stress of the i-th member of the structure under the k-th complete installation sequence method, σ yki The allowable stress of the i member of the structure under the kth complete installation sequence method, k is a positive integer.

[0085] Furthermore, the embodiment of the present application also includes:

[0086] A standard rod stress ratio setting module, wherein the standard rod stress ratio setting module is used to set the standard rod stress ratio to 1;

[0087] A ratio comparison module, the ratio comparison module is used to traverse the rod stress ratio and compare it with the standard rod stress ratio;

[0088] A rejection module, wherein the rejection module is used to reject the rod when the rod stress ratio is greater than the standard rod stress ratio;

[0089] A reserved rod stress ratio acquisition module is used to retain and acquire the reserved rod stress ratio when the rod stress ratio is less than the standard rod stress ratio.

[0090] Furthermore, the embodiment of the present application also includes:

[0091] A specific step division module, the specific step division module is used to obtain a corresponding installation sequence method based on the rod stress ratio, determine the installation sequence based on the installation sequence method, and divide the installation sequence into specific steps;

[0092] A module for obtaining a method for serializing a corresponding installation sequence is used to serialize the corresponding installation sequence method according to the data of the specific steps to obtain the serialized corresponding installation sequence method.

[0093] Furthermore, the embodiment of the present application also includes:

[0094] Constructing an implementation plan extraction module, wherein the input data of the implementation plan extraction module is the serialization corresponding installation sequence method, and the output data is the implementation plan;

[0095] A corresponding function acquisition module, which is used to acquire the corresponding function of the implementation scheme extraction module:

[0096] Objectf=min(Steps) k

[0097] Among them, min(Steps) k The method with the least number of installation steps among the installation sequence methods corresponding to the serialization, Objectf represents the objective function;

[0098] A minimum value extraction module, the minimum value extraction module is used to extract the minimum value of the serialized corresponding installation sequence method, and obtain N corresponding installation sequence methods, where N is a positive integer;

[0099] Output implementation scheme module, the output implementation scheme module is used to output implementation scheme when N=1 and there is only one corresponding installation sequence method.

[0100] Furthermore, the embodiment of the present application also includes:

[0101] A corresponding rod stress ratio acquisition module, wherein the corresponding rod stress ratio acquisition module is used to acquire the corresponding rod stress ratio of the corresponding installation sequence method when N≠1;

[0102] A minimum value acquisition module, the minimum value acquisition module is used to serialize the corresponding rod stress ratio values ​​and extract the minimum value of the corresponding rod stress ratio values;

[0103] An implementation plan output module is used to obtain the corresponding installation sequence method according to the minimum value of the corresponding rod stress ratio, and output the corresponding installation sequence method as an implementation plan.

[0104] For a specific embodiment of a system for determining the installation sequence of a large-span structure, please refer to the embodiment of a method for determining the installation sequence of a large-span structure described above, which will not be described in detail here. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0105] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 4 As shown. The computer device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store news data and data such as time attenuation factors. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for determining the installation sequence of a large-span structure is implemented.

[0106] Those skilled in the art will understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0107] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, steps of a method for determining an installation sequence of a long-span structure are implemented.

[0108] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of a method for determining an installation sequence of a long-span structure are implemented.

[0109] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for determining the installation sequence of a large-span structure, characterized in that: The method comprises: Determine the target area, obtain the actual situation on site, determine temporary support based on the actual situation on site, and build a digital twin 3D model; Simulating the digital twin three-dimensional model to obtain a complete installation sequence method; Calculate the ratio of the maximum stress of the structural member to its allowable bearing stress based on the complete installation sequence method to obtain the member stress ratio; Set the standard rod stress ratio to 1, perform comparison based on the rod stress ratio, and when the rod stress ratio is less than the standard rod stress ratio, retain it to obtain the reserved rod stress ratio; Acquire a corresponding installation sequence method based on the rod stress ratio, construct an implementation plan extraction module, input the corresponding installation sequence method into the implementation plan extraction module, and output an implementation plan; The method includes determining the target area, obtaining the actual situation on site, and constructing a digital twin 3D model based on the actual situation on site. According to the target area, the actual situation on site is obtained, wherein the actual situation on site includes the arrangement of structural components, the distribution of the construction site and the implementation of mechanical conditions; Determine temporary support based on the actual situation on site, the temporary support including the location and number of temporary support points; Building a three-dimensional model based on the actual situation on site; Acquire a temporary support method according to the actual situation on site, import the temporary support method into the three-dimensional model, and acquire a digital twin three-dimensional model; Wherein, based on the rod stress ratio, a corresponding installation sequence method is obtained, an implementation scheme extraction module is constructed, the corresponding installation sequence method is input into the implementation scheme extraction module, and an implementation scheme is output, the method includes: A method for obtaining a corresponding installation sequence based on the rod stress ratio, determining an installation sequence based on the installation sequence method, and dividing the installation sequence into specific steps; According to the data of the specific steps, the corresponding installation sequence method is serialized to obtain the serialized corresponding installation sequence method.

2. The method according to claim 1, characterized in that Based on the complete installation sequence method, the ratio of the maximum stress of the structural member to its allowable bearing stress is calculated to obtain the member stress ratio, and the method includes: Based on the complete installation sequence method, the maximum stress of the structural member and its allowable bearing stress are obtained; Obtain the member stress ratio value according to the calculation formula, which is as follows: Among them, σ wki It refers to the maximum stress of the i-th member of the structure under the k-th complete installation sequence method, σ yki is the allowable stress of the i member of the structure under the kth complete installation sequence method, and k is a positive integer.

3. The method according to claim 1, characterized in that The standard rod stress ratio is set to 1, and the rod stress ratio is compared. When the rod stress ratio is less than the standard rod stress ratio, the rod stress ratio is retained, and the retained rod stress ratio is obtained. The method includes: Set the standard bar stress ratio to 1; Traversing the stress ratio values ​​of the rods and comparing them with the stress ratio values ​​of the standard rods; When the stress ratio of the rod is greater than the stress ratio of the standard rod, it is eliminated; When the rod stress ratio is less than the standard rod stress ratio, it is retained to obtain the retained rod stress ratio.

4. The method according to claim 1, characterized in that Constructing an implementation plan extraction module, inputting the serialization corresponding installation sequence method into the implementation plan extraction module, and outputting the implementation plan, the method includes: Constructing an implementation plan extraction module, wherein the input data of the implementation plan extraction module is the serialization corresponding installation sequence method, and the output data is the implementation plan; Get the corresponding function of the implementation scheme extraction module: Objectf=min(Steps) k , Among them, min(Steps) k The method with the least number of installation steps among the installation sequence methods corresponding to the serialization, Objectf represents the objective function; Perform minimum value extraction on the serialization corresponding installation sequence method to obtain N corresponding installation sequence methods, where N is a positive integer; When N=1, there is only one corresponding installation sequence method, and an implementation plan is output.

5. The method according to claim 4, characterized in that Methods include: When N≠1, obtaining the corresponding rod stress ratio value of the corresponding installation sequence method; Serializing the corresponding rod stress ratio values, and extracting the minimum value of the corresponding rod stress ratio values; The corresponding installation sequence method is obtained according to the minimum value of the corresponding rod stress ratio, and the corresponding installation sequence method is output as an implementation plan.

6. A system for determining the installation sequence of a large-span structure, characterized in that: A system for executing a method for determining the installation sequence of a large-span structure according to any one of claims 1 to 5, the system comprising: A digital twin 3D model construction module, wherein the digital twin 3D model construction module is used to determine a target area, obtain actual conditions on site, determine temporary support based on the actual conditions on site, and construct a digital twin 3D model; A complete installation sequence method acquisition module, wherein the complete installation sequence method acquisition module is used to simulate the digital twin three-dimensional model to obtain a complete installation sequence method; A rod stress ratio obtaining module, the rod stress ratio obtaining module is used to calculate the ratio of the maximum stress of the structural rod and its allowable bearing stress based on the complete installation sequence method, and obtain the rod stress ratio; A reserved rod stress ratio obtaining module, the reserved rod stress ratio obtaining module is used to set the standard rod stress ratio to 1, compare according to the rod stress ratio, and when the rod stress ratio is less than the standard rod stress ratio, retain it to obtain the reserved rod stress ratio; An implementation plan output module is used to obtain a corresponding installation sequence method based on the rod stress ratio, construct an implementation plan extraction module, input the corresponding installation sequence method into the implementation plan extraction module, and output an implementation plan.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 5 are implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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