A method and system for constructing a prefabricated building construction model

Abstract

The present invention discloses a method and system for constructing a prefabricated building construction model, and relates to the technical field of building construction model construction. The method includes creating a construction demand table of a building structure according to the customer's expectations for a construction project; constructing a building structure model according to the construction demand table based on a recommendation algorithm; using a performance evaluation function to calculate in real time whether the design gain of each prefabricated component in the building structure model meets the construction requirements, and optimizing the design of the building structure model according to the calculation results; and estimating the resource allocation of each construction stage based on the designed building structure model. The multi-person collaborative modeling method ensures that the building model meets the requirements, the recommendation mechanism saves the time for selecting components, the real-time feedback mechanism ensures the practicality of the building model, and the automatically generated construction plan has a strong visualization capability, providing important technical support for the construction process, thereby further improving the construction efficiency and quality of prefabricated buildings.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction models, and in particular to a method and system for building an assembled building construction model. Background Art

[0002] Prefabricated buildings have become an important development direction of the construction industry in recent years. It uses factory-produced prefabricated concrete components as the main components, and is assembled, spliced ​​or combined with some cast-in-place components on site. Compared with traditional buildings, this construction method has the advantages of energy saving, high efficiency and environmental protection. At the same time, it has high resource utilization, easy control of component quality and short on-site assembly construction period. However, the corresponding prefabricated construction projects have higher requirements for construction management during the construction process than traditional construction projects, and the management information required is also more complex. This requires a system with strong visualization capabilities, which can complete complex model building work and can intuitively present various building information in the form of three-dimensional models to further improve the construction efficiency and quality of prefabricated buildings and provide important technical support for them. Summary of the invention

[0003] The present invention provides a method for constructing an assembled building construction model, comprising:

[0004] Step 1. Create a construction requirements table for the building structure based on the customer's expectations for the construction project;

[0005] Step 2: Construct a building structure model based on the construction demand table based on the recommendation algorithm;

[0006] Step 3, use the performance evaluation function to calculate in real time whether the design gain of each prefabricated component in the building structure model meets the construction requirements, and optimize the design of the building structure model according to the calculation results;

[0007] Step 4. Estimate the resource allocation for each construction stage based on the designed building structure model.

[0008] As described above, a method for constructing a prefabricated building construction model, in which a building structure model is constructed according to a construction requirement table based on a recommendation algorithm, is specifically divided into the following sub-steps:

[0009] Create a project collaborative design team and add corresponding permissions to team members;

[0010] The project collaborative design team initially created the framework of the building structure based on the construction requirements table;

[0011] Use precast components from the component model library to carry out detailed design of the preliminary building structural framework.

[0012] In the above-mentioned method for constructing a prefabricated building construction model, creating a project collaborative design team mainly includes the following sub-steps:

[0013] Establish a construction project and associate it with the construction requirements table of the construction project;

[0014] Add team members to construction projects;

[0015] Add the required permissions to team members.

[0016] A method for constructing a prefabricated building construction model as described above, in which a preliminary building structure framework is designed in detail using prefabricated components in a component model library, is specifically divided into the following sub-steps:

[0017] Select prefabricated components from the component model library according to the initially created building structure framework;

[0018] Insert the selected prefabricated components into the building structure frame and set the construction details;

[0019] The detailed design of prefabricated components and other building systems is completed by various professional members of the design team.

[0020] A method for constructing a prefabricated building construction model as described above, wherein during the design process, it is evaluated in real time whether the prefabricated components meet the performance requirements of the building structure model, which is specifically divided into the following sub-steps:

[0021] The form obtains the performance requirements of the building structure based on the environment of the building project;

[0022] Create performance evaluation functions based on component characteristics and performance requirements of the building project;

[0023] Adding real-time feedback mechanisms based on performance evaluation functions to the design process of building structures;

[0024] Optimize building structure based on real-time feedback mechanism.

[0025] As described above, a method for constructing a prefabricated building construction model is provided, wherein the resource allocation of each construction stage is estimated based on the designed building structure model, which is specifically divided into the following sub-steps:

[0026] According to the construction sequence of prefabricated buildings, the positions and states of prefabricated components in the building structure model are adjusted to form different construction stages;

[0027] Set a construction deadline for each construction phase;

[0028] Use the resource allocation estimation model to estimate the resource allocation for each construction phase according to the set construction deadline;

[0029] Generate construction plans and drawings based on the structural model of the building project.

[0030] The present invention also provides a prefabricated building construction model building system, comprising: a construction demand acquisition module, a building structure model design module, and a construction model creation module;

[0031] The construction requirements acquisition module is used to create a construction requirements table for building structures based on the client's expectations for the building project;

[0032] Building structure model design module, used to construct building structure model according to construction requirement table based on recommendation algorithm;

[0033] The construction model creation module is used to estimate the resource allocation for each construction stage based on the designed building structure model.

[0034] A prefabricated building construction model building system as described above, wherein the building structure model design module includes a component model library submodule, a project team management submodule, a building structure model design submodule, and a building structure model evaluation submodule;

[0035] The component model library submodule is used to store the prefabricated component models provided by suppliers;

[0036] The project team management submodule is used to create a project collaborative design team and add corresponding permissions to team members;

[0037] The building structure model design submodule is used to create a building structure model using prefabricated components in the component model library;

[0038] The building structure model evaluation submodule is used to use the performance evaluation function to calculate in real time whether the design gain of each prefabricated component in the building structure model meets the construction requirements, and optimize the design of the building structure model according to the calculation results.

[0039] A prefabricated building construction model building system as described above, wherein the construction model creation module includes a construction phase division submodule, a resource allocation estimation submodule, and a construction plan generation submodule;

[0040] The construction phase division submodule is used to adjust the position and state of prefabricated components in the building structure model according to the construction sequence of the prefabricated building to form different construction phases;

[0041] The resource allocation estimation submodule is used to estimate the resource allocation of each construction stage according to the set construction deadline using the resource allocation estimation model;

[0042] The construction plan generation submodule is used to generate a construction plan and construction drawings in combination with the structural model of the building project.

[0043] The beneficial effects achieved by the present invention are as follows: the multi-person collaborative modeling method ensures that the building model meets the needs, the recommendation mechanism saves time in selecting components, the real-time feedback mechanism ensures the practicality of the building model, and the automatically generated construction plan has strong visualization capabilities, providing important technical support for the construction process, thereby further improving the construction efficiency and quality of prefabricated buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0045] Figure 1 It is a flow chart of a method for constructing a prefabricated building construction model provided in Embodiment 1 of the present invention. DETAILED DESCRIPTION

[0046] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0047] Embodiment 1

[0048] like Figure 1 As shown, the first embodiment of the present invention provides a method for constructing a prefabricated building construction model, comprising:

[0049] Step S10: Creating a construction requirements table for the building structure based on the customer's expectations for the building project;

[0050] Collect the customer's expectations on the function, space, aesthetics, sustainability, cost and construction time of the building project in the form of a form, and create a construction demand form for the building project in combination with regulations and standards as the construction requirements of the building structure model.

[0051] Step S20: constructing a building structure model according to the construction requirement table based on the recommendation algorithm;

[0052] The building structure model is built based on prefabricated components. Each type of prefabricated component has its own unique parameters, such as size, material, shape, etc. Different prefabricated components are used for different construction needs. The collaborative working method refers to the real-time and joint participation of multiple staff in the design of the building structure model. The construction of the building structure model is divided into the following sub-steps:

[0053] Step S21: Create a project collaborative design team and add corresponding permissions to team members;

[0054] The roles of the project collaborative design team include: architects, structural engineers, construction managers, prefabricated component suppliers and other professional members; project permissions include: permission to call the component model library, permission to add or delete components, permission to edit and view building projects, permission to edit the construction requirements table, etc. When creating a project collaborative design team, the size of the team should be determined based on the scale and complexity of the construction requirements table.

[0055] Creating a project collaborative design team mainly consists of the following sub-steps:

[0056] Step S211: Establish a construction project and associate it with a construction requirements table of the construction project;

[0057] Step S212: adding team members to the construction project;

[0058] When adding team members, you can view the projects and project details under the name of the member to be added, which is convenient for managers to reasonably allocate work based on the work saturation of the staff.

[0059] Step S213: Add the required permissions for team members;

[0060] The purpose of adding corresponding permissions is to prevent the project from being maliciously tampered with. At the same time, when the project is in progress, you can also open a viewing permission for the customer, allowing the customer to intuitively view the staff's design and give further requirements based on the design.

[0061] Step S22: The project collaborative design team preliminarily creates a framework of the building structure according to the construction requirements table;

[0062] Based on the description of the building structure in the construction requirements table, the design team initially created a framework of the building structure, which includes columns, beams, floor slabs, walls, etc. In this step, a framework template recommendation mechanism is also designed, that is, an existing framework template is intelligently recommended based on the building function, space, cost and other requirements in the construction requirements table. The design team can directly make changes based on this template to save construction time. The source of the framework template is the framework saved by each design team. These frameworks will be marked according to project characteristics such as building function, space, cost, etc. When the framework design page is opened, it will automatically filter and screen according to the requirements in the project construction requirements table, and finally recommend several framework templates that best meet the requirements.

[0063] Step S23: using the prefabricated components in the component model library to perform detailed design on the preliminary building structure framework;

[0064] Prefabricated components are selected to fill the building structure based on the building structure framework, and the size, material and connection method of the components need to be considered. The specific design process includes the following sub-steps:

[0065] Step S231: selecting prefabricated components from a component model library according to the initially created building structure framework;

[0066] The selection of prefabricated components should comprehensively consider parameters such as size, material, and bearing capacity. A prefabricated component recommendation mechanism is set up. The same algorithm as the frame template recommendation mechanism mentioned above is used to recommend prefabricated components that meet the current building structure framework based on the historical application records of prefabricated components, saving the screening time of the staff. The core function of the recommendation algorithm is expressed as: , where A is the current demand parameter set and B is the historical construction record set. is the i-th requirement parameter in set A, is the record value of the i-th requirement parameter in the k-th historical build record, n is the number of requirement parameters, i ranges from 1 to n, k ranges from 1 to l, and l is the total number of historical component records;

[0067] The function return value is the index of a construction record that is most similar to the current requirement. The frame templates or prefabricated components used in the construction project are queried from this construction record and put into the recommendation list for the staff to view and select.

[0068] Step S232: inserting the selected prefabricated components into the building structure frame and setting construction details;

[0069] Insert the selected precast components into the building structure model for detailed design, which includes determining the specific location of the components, connection node design and other construction details.

[0070] Step S233: The professional members of the design team jointly complete the detailed design of prefabricated components and other building systems;

[0071] Throughout the design process, project team members need to work closely together to ensure that all professional design requirements are met and that prefabricated components are coordinated with other building systems (such as mechanical and electrical, water supply and drainage, etc.).

[0072] Step S30: using the performance evaluation function to calculate in real time whether the design gain of each prefabricated component in the building structure model meets the construction requirements, and optimizing the design of the building structure model according to the calculation results, specifically including the following sub-steps:

[0073] Step S31: The form obtains the performance requirements of the building structure of the building project based on the environment;

[0074] Natural factors such as climate, geology, earthquakes, wind, temperature changes, etc. at the building's location will directly affect the design and material selection of the building structure. Based on the analysis of the environmental factors of the construction project's location, the staff fills in the project's performance requirements through a form to standardize the design and material selection of the building structure model and ensure the feasibility and feasibility of the building structure.

[0075] Step S32: creating a performance evaluation function based on component characteristics and performance requirements of the building project;

[0076] The performance evaluation function is expressed as: ,in This function evaluates whether the prefabricated component C meets the performance requirement D. The return value is 1 if it meets the requirement, and 0 if it does not meet the requirement. represents the tth attribute parameter of prefabricated component C, is the periodic loss coefficient of the tth attribute parameter, is the evaluation period of precast component C, is the design gain of the tth attribute parameter, d is the threshold of the performance requirement D, if Returns 1 if It returns 0.

[0077] Step S33: adding a real-time feedback mechanism based on the performance evaluation function to the design process of the building structure;

[0078] The real-time feedback mechanism means that when designing a building structure, every time a team member adds a prefabricated component, the performance evaluation function will evaluate in real time whether the prefabricated component meets the performance requirements of the current building project, and display the results of each performance evaluation on one side of the model design page.

[0079] Step S34: Optimizing the building structure based on the real-time feedback mechanism;

[0080] During the detailed design process, multiple iterations and optimizations may be required. The real-time feedback mechanism provides important data reference for iteration and optimization. Team members adjust the design based on the results of various performance evaluations to ensure the safety and functionality of the structure.

[0081] Step S40: estimating resource allocation for each construction phase based on the designed building structure model;

[0082] The construction model can help the project team pre-generate a detailed construction plan. Creating a complete construction model includes the following sub-steps:

[0083] Step S41: adjusting the position and state of prefabricated components in the building structure model according to the construction sequence of the prefabricated building to form different construction stages;

[0084] According to the construction sequence, the construction project is divided into different construction stages, such as foundation and base, building frame, walls, stairs, partitions, mechanical and electrical installation, etc., and the position and status of prefabricated components are adjusted to match each construction stage.

[0085] Step S42: setting a construction deadline for each construction stage;

[0086] The setting of the construction period can also use the recommendation algorithm to recommend several similar construction projects, and query the historical construction data of the recommended construction projects to provide data reference for team members.

[0087] Step S43: using the resource allocation estimation model to estimate the resource allocation for each construction phase according to the set construction deadline;

[0088] Resource allocation includes the quantity and budget of each resource. The resource allocation estimation model is expressed as: ,in To predict the workload during the construction phase, To predict the construction period during the construction phase, To predict the workload during the construction phase for the e-th historic building project, For the e-th historical building project, predict the amount of resources used in the construction phase, is the construction period of the predicted construction phase in the e-th historical building project, e ranges from 1 to E, E is the total number of historical building projects, p is the unit price of the predicted resource, represents the autoregressive coefficient for predicting resource unit prices in different periods, It represents the floating trend of the unit price of predicted resources in different periods, q is the number of prediction periods divided in the total construction period, h is other variables, P is the budget provided by the construction project for the predicted resources in the predicted construction stage, and the output value is It indicates the number of forecast resources required for the forecast construction phase, Indicates the floating parameter of the resource quantity in the current period, which is used to verify whether the cost is within the budget range. If it is greater than 1, it means it is there, otherwise it is not there. It is necessary to expand the budget provided for the forecast resources in the forecast construction stage. The calculation formula for the expanded budget is: .

[0089] Step S44: Generate a construction plan and construction drawings in combination with the building project structure model;

[0090] The construction plan includes the status of the structural model of the building project at each construction stage, the construction period, and the details of various resource allocations. The construction drawing is the details page of the building structure model, which includes the detailed parameters of each prefabricated component and detailed construction details.

[0091] Embodiment 2

[0092] Embodiment 2 of the present invention provides a system for constructing a prefabricated building construction model, comprising: a construction demand acquisition module, a building structure model design module, and a construction model creation module;

[0093] (1) Construction requirements acquisition module, which is used to create a construction requirements table for the building structure based on the customer's expectations for the construction project;

[0094] Collect the customer's expectations on the function, space, aesthetics, sustainability, cost and construction time of the building project in the form of a form, and create a construction demand form for the building project in combination with regulations and standards as the construction requirements of the building structure model.

[0095] (2) Building structure model design module, which is used to construct a building structure model according to the construction requirement table based on the recommendation algorithm, including a component model library submodule, a project team management submodule, a building structure model design submodule, and a building structure model evaluation submodule;

[0096] 1. Component model library submodule, used to store prefabricated component models provided by suppliers;

[0097] 2. Project team management submodule, used to create a project collaborative design team and add corresponding permissions to team members;

[0098] The roles of the project collaborative design team include: architects, structural engineers, construction managers, prefabricated component suppliers and other professional members; project permissions include: permission to call the component model library, permission to add or delete components, permission to edit and view building projects, permission to edit the construction requirements table, etc. When creating a project collaborative design team, the size of the team should be determined based on the scale and complexity of the construction requirements table.

[0099] There are several steps to create a collaborative design team:

[0100] I. Establish a construction project and associate it with the construction requirements table of the construction project;

[0101] II. Add team members to the construction project;

[0102] When adding team members, you can view the projects and project details under the name of the member to be added, which is convenient for managers to reasonably allocate work based on the work saturation of the staff.

[0103] III. Add the required permissions to team members;

[0104] The purpose of adding corresponding permissions is to prevent the project from being maliciously tampered with. At the same time, when the project is in progress, you can also open a viewing permission for the customer, allowing the customer to intuitively view the staff's design and give further requirements based on the design.

[0105] 3. The building structure model design submodule is used to create a building structure model using prefabricated components in the component model library, which specifically includes the following steps:

[0106] I. The project collaborative design team initially creates the framework of the building structure based on the construction requirements table;

[0107] Based on the description of the building structure in the construction requirements table, the design team initially created a framework of the building structure, which includes columns, beams, floor slabs, walls, etc. In this step, a framework template recommendation mechanism is also designed, that is, an existing framework template is intelligently recommended based on the building function, space, cost and other requirements in the construction requirements table. The design team can directly make changes based on this template to save construction time. The source of the framework template is the framework saved by each design team. These frameworks will be marked according to project characteristics such as building function, space, cost, etc. When the framework design page is opened, it will automatically filter and screen according to the requirements in the project construction requirements table, and finally recommend several framework templates that best meet the requirements.

[0108] II. Use prefabricated components in the component model library to carry out detailed design of the preliminary building structure frame;

[0109] Prefabricated components are selected to fill the building structure based on the building structure framework, and the size, material and connection method of the components need to be considered. The specific design process includes the following sub-steps:

[0110] i. Select prefabricated components from the component model library based on the initially created building structure framework;

[0111] The selection of prefabricated components should comprehensively consider parameters such as size, material, and bearing capacity. A prefabricated component recommendation mechanism is set up. The same algorithm as the frame template recommendation mechanism mentioned above is used to recommend prefabricated components that meet the current building structure framework based on the historical application records of prefabricated components, saving the screening time of the staff. The core function of the recommendation algorithm is expressed as: , where A is the current demand parameter set and B is the historical construction record set. is the i-th requirement parameter in set A, is the record value of the i-th requirement parameter in the k-th historical build record, n is the number of requirement parameters, i ranges from 1 to n, k ranges from 1 to l, and l is the total number of historical component records;

[0112] The function return value is the index of a construction record that is most similar to the current requirement. The frame templates or prefabricated components used in the construction project are queried from this construction record and put into the recommendation list for the staff to view and select.

[0113] ii. Insert the selected prefabricated components into the building structure frame and set the construction details;

[0114] Insert the selected precast components into the building structure model for detailed design, which includes determining the specific location of the components, connection node design and other construction details.

[0115] iii. The detailed design of prefabricated components and other building systems shall be completed by all professional members of the design team;

[0116] Throughout the design process, project team members need to work closely together to ensure that all professional design requirements are met and that prefabricated components are coordinated with other building systems (such as mechanical and electrical, water supply and drainage, etc.).

[0117] 4. The building structure model evaluation submodule is used to use the performance evaluation function to calculate in real time whether the design gain of each prefabricated component in the building structure model meets the construction requirements, and optimize the design of the building structure model according to the calculation results. It specifically includes the following substeps:

[0118] I. The form obtains the performance requirements of the building structure based on the environment of the building project;

[0119] Natural factors such as climate, geology, earthquakes, wind, temperature changes, etc. at the building's location will directly affect the design and material selection of the building structure. Based on the analysis of the environmental factors of the construction project's location, the staff fills in the project's performance requirements through a form to standardize the design and material selection of the building structure model and ensure the feasibility and feasibility of the building structure.

[0120] II. Create performance evaluation functions based on component characteristics and performance requirements of building projects;

[0121] The performance evaluation function is expressed as: ,in This function evaluates whether the prefabricated component C meets the performance requirement D. The return value is 1 if it meets the requirement, and 0 if it does not meet the requirement. represents the tth attribute parameter of prefabricated component C, is the periodic loss coefficient of the tth attribute parameter, is the evaluation period of precast component C, is the design gain of the tth attribute parameter, d is the threshold of the performance requirement D, if Returns 1 if It returns 0.

[0122] III. Adding real-time feedback mechanism based on performance evaluation function to the design process of building structures;

[0123] The real-time feedback mechanism means that when designing a building structure, every time a team member adds a prefabricated component, the performance evaluation function will evaluate in real time whether the prefabricated component meets the performance requirements of the current building project, and display the results of each performance evaluation on one side of the model design page.

[0124] IV. Optimize building structure based on real-time feedback mechanism;

[0125] During the detailed design process, multiple iterations and optimizations may be required. The real-time feedback mechanism provides important data reference for iteration and optimization. Team members adjust the design based on the results of various performance evaluations to ensure the safety and functionality of the structure.

[0126] (3) Construction model creation module, which is used to estimate the resource allocation of each construction stage based on the designed building structure model, including the construction stage division sub-module, resource allocation estimation sub-module, and construction plan generation sub-module;

[0127] 1. Construction phase division submodule, which is used to adjust the position and status of prefabricated components in the building structure model according to the construction sequence of prefabricated buildings to form different construction phases;

[0128] According to the construction sequence, the construction project is divided into different construction stages, such as foundation and base, building frame, walls, stairs, partitions, mechanical and electrical installation, etc., and the position and status of prefabricated components are adjusted to match each construction stage.

[0129] 2. Resource allocation estimation submodule, which is used to estimate the resource allocation of each construction stage according to the set construction deadline using the resource allocation estimation model;

[0130] The setting of the construction period can also use the recommendation algorithm to recommend several similar construction projects, and query the historical construction data of the recommended construction projects to provide data reference for team members.

[0131] Resource allocation includes the quantity and budget of each resource. The resource allocation estimation model is expressed as: ,in To predict the workload during the construction phase, To predict the construction period during the construction phase, To predict the workload during the construction phase for the e-th historic building project, For the e-th historical building project, predict the amount of resources used in the construction phase, is the construction period of the predicted construction phase in the e-th historical building project, where e ranges from 1 to E, and E is the total number of historical building projects. represents the autoregressive coefficient for predicting resource unit prices in different periods, It represents the floating trend of the unit price of predicted resources in different periods, q is the number of prediction periods divided in the total construction period, h is other variables, P is the budget provided by the construction project for the predicted resources in the predicted construction stage, and the output value is It indicates the number of forecast resources required for the forecast construction phase, It represents the floating parameter of resource quantity in the current cycle, and p is the unit price of the predicted resource, which is used to verify whether the cost is within the budget. If it is greater than 1, it means it is there, otherwise it is not there. It is necessary to expand the budget provided for the forecast resources in the forecast construction stage. The calculation formula for the expanded budget is: .

[0132] 3. Construction plan generation submodule, used to generate construction plans and construction drawings in combination with the structural model of the building project;

[0133] The construction plan includes the status of the structural model of the building project at each construction stage, the construction period, and the details of various resource allocations. The construction drawing is the details page of the building structure model, which includes the detailed parameters of each prefabricated component and detailed construction details.

[0134] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solution of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for constructing a prefabricated building construction model, comprising: Step 1. Create a construction requirements table for the building structure based on the customer's expectations for the construction project; Step 2: Construct a building structure model based on the construction demand table based on the recommendation algorithm; Step 3, use the performance evaluation function to calculate in real time whether the design gain of each prefabricated component in the building structure model meets the construction requirements, and optimize the design of the building structure model according to the calculation results; Step 4: Estimate the resource allocation for each construction phase based on the designed building structure model, which is divided into the following sub-steps: According to the construction sequence of prefabricated buildings, the positions and states of prefabricated components in the building structure model are adjusted to form different construction stages; Set a construction deadline for each construction phase; Use the resource allocation estimation model to estimate the resource allocation for each construction phase according to the set construction deadline; Resource allocation includes the quantity and budget of each resource. The resource allocation estimation model is expressed as: ,in To predict the workload during the construction phase, To predict the construction period during the construction phase, To predict the workload during the construction phase for the e-th historic building project, For the e-th historical building project, predict the amount of resources used in the construction phase, is the construction period of the predicted construction phase in the e-th historical building project, e ranges from 1 to E, E is the total number of historical building projects, p is the unit price of the predicted resource, represents the autoregressive coefficient for predicting resource unit prices in different periods, It represents the floating trend of the unit price of predicted resources in different periods, q is the number of prediction periods divided in the total construction period, h is other variables, P is the budget provided by the construction project for the predicted resources in the predicted construction stage, and the output value It indicates the number of forecast resources required for the forecast construction phase, Indicates the floating parameter of the resource quantity in the current period, which is used to verify whether the cost is within the budget range. If it is greater than 1, it means it is there, otherwise it is not there. It is necessary to expand the budget provided for the forecast resources in the forecast construction stage. The calculation formula for the expanded budget is: ; Generate construction plans and drawings based on the structural model of the building project.

2. A method for constructing an assembled building construction model according to claim 1, characterized in that: The building structure model is constructed according to the construction demand table based on the recommendation algorithm, which is divided into the following sub-steps: Create a project collaborative design team and add corresponding permissions to team members; The project collaborative design team initially created the framework of the building structure based on the construction requirements table; Use precast components from the component model library to carry out detailed design of the preliminary building structural framework.

3. A method for constructing an assembled building construction model according to claim 2, characterized in that: Creating a project collaborative design team mainly consists of the following sub-steps: Establish a construction project and associate it with the construction requirements table of the construction project; Add team members to construction projects; Add the required permissions to team members.

4. A method for constructing a prefabricated building construction model according to claim 2, characterized in that: Use prefabricated components in the component model library to carry out detailed design of the preliminary building structure framework, which is divided into the following sub-steps: Select prefabricated components from the component model library according to the initially created building structure framework; Insert the selected prefabricated components into the building structure frame and set the construction details; The detailed design of prefabricated components and other building systems is completed by various professional members of the design team.

5. The method for constructing a prefabricated building construction model according to claim 1, characterized in that: During the design process, the prefabricated components are evaluated in real time to see if they meet the performance requirements of the building structure model. This is divided into the following sub-steps: The form obtains the performance requirements of the building structure based on the environment of the building project; Create performance evaluation functions based on component characteristics and performance requirements of the building project; Adding real-time feedback mechanisms based on performance evaluation functions to the design process of building structures; Optimize building structure based on real-time feedback mechanism.

6. A prefabricated building construction model building system, comprising: Construction demand acquisition module, building structure model design module, construction model creation module; The construction requirements acquisition module is used to create a construction requirements table for building structures based on the client's expectations for the building project; Building structure model design module, used to construct building structure model according to construction requirement table based on recommendation algorithm; The construction model creation module is used to estimate the resource allocation for each construction stage based on the designed building structure model, including: The construction phase division submodule is used to adjust the position and state of prefabricated components in the building structure model according to the construction sequence of the prefabricated building to form different construction phases; The resource allocation estimation submodule is used to estimate the resource allocation of each construction stage according to the set construction deadline using the resource allocation estimation model; Resource allocation includes the quantity and budget of each resource. The resource allocation estimation model is expressed as: ,in To predict the workload during the construction phase, To predict the construction period during the construction phase, To predict the workload during the construction phase for the e-th historic building project, For the e-th historical building project, predict the amount of resources used in the construction phase, is the construction period of the predicted construction phase in the e-th historical building project, e ranges from 1 to E, E is the total number of historical building projects, p is the unit price of the predicted resource, represents the autoregressive coefficient for predicting resource unit prices in different periods, It represents the floating trend of the unit price of predicted resources in different periods, q is the number of prediction periods divided in the total construction period, h is other variables, P is the budget provided by the construction project for the predicted resources in the predicted construction stage, and the output value It indicates the number of forecast resources required for the forecast construction phase, Indicates the floating parameter of the resource quantity in the current period, which is used to verify whether the cost is within the budget range. If it is greater than 1, it means it is there, otherwise it is not there. It is necessary to expand the budget provided for the forecast resources in the forecast construction stage. The calculation formula for the expanded budget is: ; The construction plan generation submodule is used to generate a construction plan and construction drawings in combination with the structural model of the building project.

7. The assembly type building construction model construction system according to claim 6, characterized in that: The building structure model design module includes a component model library submodule, a project team management submodule, a building structure model design submodule, and a building structure model evaluation submodule; The component model library submodule is used to store the prefabricated component models provided by suppliers; The project team management submodule is used to create a project collaborative design team and add corresponding permissions to team members; The building structure model design submodule is used to create a building structure model using prefabricated components in the component model library; The building structure model evaluation submodule is used to use the performance evaluation function to calculate in real time whether the design gain of each prefabricated component in the building structure model meets the construction requirements, and optimize the design of the building structure model according to the calculation results.

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