A Design Method and System for Prefabricated Residential Buildings Based on Revit

Abstract

The present invention discloses a design method for prefabricated residential buildings based on Revit, comprising the following steps: S1. Create a standard floor design scheme model: Use Revit software to divide the scheme design into two parts, namely the design of the household model module and the design of the circulation core model module. Take the household model module and the circulation core model module as the smallest design unit model modules, and form different unit model design schemes through the combination of household modules. Then, assemble the unit models into a standard floor model to finally form a scheme design model; S2. Create a prefabricated household model module and a prefabricated circulation core model module: Based on the created standard floor design scheme model, directly confirm and split precast components in the smallest design unit model module, and create detailed drawings of the precast component dimensions; S3. Generate a prefabricated standard floor model; and S4. Optimize the scheme to generate the final prefabricated building design model.

Description

Technical Field

[0001] The present invention relates to the technical field of building modeling, and particularly relates to a design method and system for prefabricated houses based on Revit. Background Art

[0002] Traditional design methods for prefabricated houses rely on two-dimensional CAD drawings, with relatively weak three-dimensional functions, and the two-dimensional drawings are not associated with the three-dimensional ones, resulting in low visibility and design efficiency. With the continuous in-depth application of BIM technology in the construction field of our country, the design and deepening advantages of Revit software have gradually emerged, and a design method for prefabricated houses combining CAD and Revit has emerged: on the basis of two-dimensional drawing design, prefabricated components adopt the method of Revit parametric modeling, realizing the positioning and modification of components from a single view in CAD to the layout and modification of components from multiple views such as plan, elevation, section and three-dimensional view in Revit, solving the problem of non-linkage between the original two-dimensional and three-dimensional, and improving the design quality to a certain extent.

[0003] However, since the entire design process still involves three-dimensional modeling based on CAD drawing design, including preliminary scheme design, disassembly and deepening drawing of each prefabricated component in the middle stage, and prefabricated components in Revit software are not system families, it is necessary to select appropriate family templates to create self-built families, and the creation method is more complex than that of non-prefabricated buildings. If all prefabricated components are created, it will also lead to low modeling efficiency. Therefore, the design efficiency has not been improved but has been greatly reduced, resulting in an increase in the design cycle and labor cost. Therefore, although this design method combining CAD and Revit has many advantages, it has not been popularized.

[0004] In view of the above problems, there is an urgent need for a design method that is different from the traditional method relying on two-dimensional drawings, but can realize the scheme design of prefabricated houses and the rapid disassembly and deepening drawing of prefabricated components in Revit, so as to solve the deficiencies in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a design method for prefabricated houses based on Revit to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides a design method for prefabricated houses based on Revit, including the following steps:

[0007] S1. Create a standard floor design scheme model: Use Revit software to divide the scheme design into two parts: the household model module design and the traffic core model module design. Take the household model module and the traffic core model module as the smallest design unit model modules, and form different unit model design schemes through the combination method of household modules. Then, assemble the unit models into a standard floor model, and finally form a scheme design model.

[0008] S2. Create prefabricated household model modules and prefabricated traffic core model modules: Based on the created standard floor design scheme model, directly confirm and split precast components in the smallest design unit model modules, and create detailed drawings of the precast component dimensions.

[0009] S3. Generate a prefabricated standard floor model; and

[0010] S4. Optimize the scheme to generate the final prefabricated building design model.

[0011] In a preferred embodiment, in step S1, creating a standard floor design scheme model includes:

[0012] S11. Create household model modules: Use the method of creating a new project in Revit software to create different household models respectively, and each household model is an independent rvt file.

[0013] S12. Create traffic core model modules;

[0014] S13. Create a new project, load and assemble the household model modules and the traffic core model modules in the form of groups respectively, conduct scheme comparison and selection, and finally form a standard floor design scheme model.

[0015] In a preferred embodiment, in step S13, when creating a new project, select the "Load as Group" command, select the household model module, and then select the "Place Model Group" command in the model group command to load the household model module. Load the traffic core model module in the same way. Form different schemes through combination with different household model modules and conduct comparison and selection to form the final design scheme. Finally, convert the household model group and the traffic core model group in the project into links respectively, replace and delete the original model group. Thus, the creation of the standard floor design scheme model is completed.

[0016] In a preferred embodiment, in step S2, creating prefabricated household model modules and prefabricated traffic core model modules includes:

[0017] S21. Confirm and split precast components in the household model module;

[0018] S22. Confirm and split precast components in the traffic core model module;

[0019] S23. Complete the creation of the detailed drawings of the precast component dimensions in all housing model modules;

[0020] S24. Complete the creation of the detailed drawings of the precast component dimensions in the transportation core model module.

[0021] In a preferred embodiment, in step S21, the confirmation and splitting of precast components in the housing model module includes: opening any housing model module, setting the part visibility to display parts in the floor plan, selecting the precast floor slab to be split, selecting Create Part in the Modify / Floor tab, creating reference planes for splitting the precast floor slab and naming them respectively, after the reference planes are drawn, selecting the floor slab to be split, selecting Split Part in the Modify / Component tab, selecting the intersection reference method as the reference plane, checking the names of the created reference planes for splitting the precast floor slab, clicking OK to complete the splitting of the floor slab, selecting one of the split precast floor slabs, adding notes in its property panel as composite floor slab, composite air-conditioning board or composite balcony board, unchecking the option of classifying by original material, and modifying the material to precast component; in step S22, the method of confirming and splitting precast components in the transportation core model module is the same as that in step S21 for confirming and splitting precast components in the housing model module.

[0022] In a preferred embodiment, in step S23, the completion of the creation of the detailed drawings of the precast component dimensions in all housing model modules includes: selecting any precast component in the housing model module, selecting the New Component command in the Modify / Part tab, modifying the type name to the component number, selecting Create View in the Modify / Component tab, selecting the required type, and adding dimension annotation information in each view type to complete the detailed drawings of the precast component and complete the creation of the detailed drawings of the precast component dimensions in all housing model modules.

[0023] In a preferred embodiment, in step S24, the completion of the creation of the detailed drawings of the precast component dimensions in the transportation core model module includes: selecting any precast component in the transportation core model module, selecting the New Component command in the Modify / Part tab, modifying the type name to the component number, selecting Create View in the Modify / Component tab, selecting the required type, and adding dimension annotation information in each view type to complete the detailed drawings of the precast component and complete the creation of the detailed drawings of the precast component dimensions in all transportation core model modules.

[0024] In a preferred embodiment, in step S3, generating an assembled standard floor model includes: respectively reloading the assembled housing model module and the assembled transportation core model module completed in step S2 in the standard floor design scheme model to generate an assembled standard floor model.

[0025] In a preferred embodiment, in step S4, the optimization solution to generate the final prefabricated building design model includes: when the solution changes or is adjusted, find the corresponding minimum design unit model module for modification and improvement, reload it for update, and finally complete the axis network and other parts, and assemble to generate the final prefabricated building design model.

[0026] The present invention also provides a Revit-based prefabricated residential design system, including:

[0027] A unit for creating a standard floor design solution model, wherein creating the standard floor design solution model includes: using Revit software to divide the solution design into two parts: the household model module design and the traffic core model module design, taking the household model module and the traffic core model module as the minimum design unit model modules, and forming different unit model design solutions through the combination method of household modules, and then assembling the unit models into a standard floor model to finally form the solution design model;

[0028] A unit for creating prefabricated household model modules and prefabricated traffic core model modules, wherein creating the prefabricated household model modules and prefabricated traffic core model modules includes: based on the created standard floor design solution model, directly confirm and split prefabricated components in the minimum design unit model modules, and create detailed drawings of the prefabricated component sizes;

[0029] A unit for generating a prefabricated standard floor model; and

[0030] A unit for optimizing the solution to generate the final prefabricated building design model.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. Through the standardized and serialized design method, the present invention uses Revit software to divide the solution design into two major parts: the household model module design and the traffic core model module design, and forms different unit model design solutions through the flexible and variable combination method of household modules, and then assembles the unit models into a standard floor model to finally form the solution design model. The innovation of this design lies in starting from the minimum design unit model modules (household model modules and traffic core model modules) for design, reducing repetitive work to the greatest extent. When adjusting, optimizing or deepening the design solution, only the minimum unit model modules need to be modified or improved, and the automatic update of the solution design model can be achieved by reloading the modules. This modeling method has a clear process, simple operation, can improve the speed of solution generation and modification, and does not rely on two-dimensional CAD drawing design. The method of the present invention increases visibility, realizes multi-view linkage, and does not require repeated operations on each view during optimization and modification, improving the design efficiency.

[0033] 2. Based on the scheme design model, the present invention directly establishes an assembled model, where the precast components can be determined and split directly in the determined minimum design unit model module. The precast components and non-precast components are divided by creating parts and splitting the parts. By creating the split parts into components, the laminated slabs, ALC slabs, etc. with numbers are generated. Finally, the component dimension drawings can be directly generated. Different from the previous method of creating precast components using parametric families, the method of directly splitting components in the scheme design model of the present invention is simpler, more intuitive and easier to operate. By utilizing the feature that components in Revit can directly generate drawings, the split precast components can be added with dimension parameters to generate two-dimensional component dimension drawings for later processing and refinement. Finally, the assembled house type model module and the traffic core model module after component splitting are saved and reloaded into the scheme design model, and the assembled model is automatically updated, greatly improving the modeling efficiency.

[0034] 3. The present invention significantly improves the design quality. Since each graphic element in Revit is automatically associated in each view, when a certain graphic element is modified, the graphic element in the associated views will be automatically updated, ensuring the consistency of the design. Moreover, the drawings issued by Revit have high quality, reducing the errors and troubles of manual drawing. The accurate three-dimensional model can provide accurate information support for the construction and operation and maintenance stages.

[0035] 4. The present invention realizes the integrated management of design data. Revit provides detailed information about precast components, such as materials, dimensions, areas, volumes, etc. These information helps designers better understand the attribute characteristics of the building model and make accurate quantity and cost estimates. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is the flowchart of the method steps of the present invention;

[0037] Figure 2 is the flowchart of creating the assembled house type model module and the assembled traffic core model module of the present invention;

[0038] Figure 3 is the flowchart of generating the assembled standard floor model of the present invention;

[0039] Figure 4 is the schematic diagram of the traffic core model module of the present invention;

[0040] Figure 5 is the schematic diagram of a house type model module of the present invention;

[0041] Figure 6 is the schematic diagram of the precast component splitting of the house type model module of the present invention.

[0042] DESCRIPTION OF THE REFERENCE NUMERALS:

[0043] 1. Composite slab; 2. ALC panel; 3. Special-shaped structural column; 4. Aerated concrete exterior wall; 5. Basic wall. Specific implementation manner

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0045] Embodiment 1

[0046] As Figures 1 to 6 shown, the prefabricated residential design method based on Revit of the present invention includes the following steps:

[0047] Step S1, create a standard floor design scheme model: Use Revit software to divide the scheme design into two parts: the household model module design and the traffic core model module design. Take the household model module and the traffic core model module as the smallest design unit model modules, and form different unit model design schemes through the combination method of household modules. Then, assemble the unit models into a standard floor model to finally form a scheme design model.

[0048] Specifically, in step S1, creating a standard floor design scheme model includes:

[0049] Step S11, create a household model module: Use the method of creating a new project in Revit software to create different household models respectively, and each household model is an independent rvt file;

[0050] Step S12, create a traffic core model module: Refer to the above steps to create a traffic core model module;

[0051] Step S13: Create a new project, load and assemble the housing type model module and the circulation core model module in the form of groups respectively, and conduct scheme comparison to finally form the standard floor design scheme model: In the new project, select the "Load as Group" command, select the housing type model module, and then select the "Place Model Group" command in the "Model Group" command to load it. This step is different from the traditional model loading method. This method can simultaneously achieve two operations: update when reloading and direct in-place editing. In addition, when multiple housing type model groups have been loaded, select the instance of the housing type model group to be replaced, and any loaded housing type model group can be replaced in-situ in the drop-down list of the type selector, which is very beneficial for model creation in the scheme stage and cannot be achieved in the traditional method. Load the circulation core model module in the same way. Since there are many different layouts of housing types for the same area requirement, different schemes can be formed by combining the circulation core model module with different housing type model modules respectively, and comparison can be made to form the final design scheme. The method of the present invention can demonstrate the assembled effect after replacement through on-site demonstration operation, which improves the speed of scheme confirmation. Finally, convert the housing type model group and the circulation core model group in the project into links respectively, replace and delete the original model group. Thus, the standard floor design scheme model is created.

[0052] Step S2: Create the prefabricated housing type model module and the prefabricated circulation core model module: Based on the created standard floor design scheme model, directly confirm and split the precast components in the minimum design unit model module. Divide the precast components and non-precast components by creating parts and splitting the parts. Generate the superimposed slab, ALC strip board, etc. with numbers by creating the split parts into components. Finally, the component dimension drawing can be directly generated. Different from the previous method of creating precast components using parametric families, this method of directly splitting components in the scheme design model is simpler, more intuitive and easier to operate. Then, using the characteristic that the components in Revit can directly generate drawings, the split precast components can be added with dimension parameters to generate two-dimensional component dimension drawings for later processing and deepening.

[0053] Specifically, in step S2, creating the prefabricated housing type model module and the prefabricated circulation core model module includes:

[0054] Step S21. Confirm and split precast components in the housing type model module: Open any housing type model module, set the part visibility to display parts in the floor plan, select the precast floor slab to be split, select Create Part in the Modify / Floor tab, create reference planes for splitting the precast floor slab and name them respectively. After the reference planes are drawn, select the floor slab to be split, select Split Part in the Modify / Components tab, select the reference plane as the intersection reference method, check the names of the created reference planes for splitting the precast floor slab, click OK to complete the splitting of the floor slab. Select one of the split precast floor slabs, add notes in its property panel as composite floor slab, composite air-conditioning slab or composite balcony slab, uncheck the option of classifying by original material, and modify the material to precast component.

[0055] Step S22. Confirm and split precast components in the circulation core model module; The method of confirming and splitting precast components in the circulation core model module is the same as that in Step S21 in the housing type model module.

[0056] Step S23. Complete the creation of dimensioned details of precast components in all housing type model modules: Select any precast component in the housing type model module, select the New Component command in the Modify / Part tab, modify the type name to component number, select Create View in the Modify / Component tab, select the required type, and add dimension annotation information in each view type to complete the dimensioned details of the precast component and complete the creation of dimensioned details of precast components in all housing type model modules.

[0057] Step S24. Complete the creation of dimensioned details of precast components in the circulation core model module: Select any precast component in the circulation core model module, select the New Component command in the Modify / Part tab, modify the type name to component number, select Create View in the Modify / Component tab, select the required type, and add dimension annotation information in each view type to complete the dimensioned details of the precast component and complete the creation of dimensioned details of precast components in all circulation core model modules.

[0058] In the traditional assembled Revit model, the parametric family method is used to create each prefabricated component separately, and then the family is imported into the project to assemble them separately to form an assembled model. This method completely separates the component from the whole and lacks unity. It is also cumbersome and prone to errors in the later optimization and modification process. It often needs to be created when there are component size details, which is not suitable for the scheme design stage. The assembled component splitting method proposed in the present invention is to split directly in the model, and the splitting effect is directly reflected in the model. In the later optimization and modification process, the reference plane position can be directly adjusted in the model to achieve re-division. The prefabricated component drawing does not need to be redrawn, and linkage modification can be achieved. The component size details can be directly exported from the model, which greatly improves the modeling efficiency.

[0059] Further, as shown in Figure 6, the figure shows a schematic diagram of the disassembly of a prefabricated component of a housing model module, which specifically includes the following contents:

[0060] Composite slab 1: prefabricated slab, split using the method in step S2 and coded and named according to different sizes;

[0061] ALC strip 2: prefabricated interior partition wall, split using step S2 method.

[0062] Special-shaped structural column 3: Created using the family method.

[0063] Aerated concrete exterior wall 4: Created using system wall family.

[0064] Basic Wall 5: Created using the system wall family.

[0065] Step S3, generating an assembled standard floor model: reloading the assembled house model module and assembled traffic core model module completed in step S2 into the standard floor design model to generate an assembled standard floor model.

[0066] Step S4, optimize the plan and generate the final prefabricated residential building design model: when the plan changes or is adjusted, find the corresponding minimum design unit model module to modify and improve it, reload it for updating, and finally improve the axis network and other parts to assemble and generate the final prefabricated residential building design model.

[0067] Example 2

[0068] The present invention also provides a prefabricated housing design system based on Revit, comprising:

[0069] A unit for creating a standard floor design scheme model. Among them, creating a standard floor design scheme model includes: using Revit software to divide the scheme design into two parts, namely, the household model module design and the circulation core model module design. Taking the household model module and the circulation core model module as the smallest design unit model modules, and forming different unit model design schemes through the combination method of household modules. Then, assembling the unit models into a standard floor model to finally form a scheme design model;

[0070] A unit for creating prefabricated household model modules and prefabricated circulation core model modules. Among them, creating prefabricated household model modules and prefabricated circulation core model modules includes: based on the created standard floor design scheme model, directly confirming and splitting precast components in the smallest design unit model modules, and creating detailed drawings of the sizes of precast components;

[0071] A unit for generating a prefabricated standard floor model; and

[0072] A unit for optimizing the scheme and generating the final prefabricated building design model.

[0073] Furthermore, creating a standard floor design scheme model includes:

[0074] Creating a household model module: In Revit software, create different household models by using the method of creating a new project. Each household model is an independent rvt file;

[0075] Creating a circulation core model module: Refer to the above steps to create a circulation core model module;

[0076] Create a new project, load and assemble the household model module and the circulation core model module in the form of a group respectively, and conduct scheme comparison. Finally, form a standard floor design scheme model: In the new project, select the "Load as Group" command, select the household model module, and select the "Place Model Group" command in the "Model Group" command to load it. This step is different from the traditional model loading method. This method can simultaneously achieve two operations, namely, update when reloading and direct in-place editing. In addition, in the case of having loaded multiple household model groups, select the instance of the household model group that you want to replace, and in the drop-down list of the type selector, you can achieve in-situ replacement of any loaded household model group, which is very beneficial for model creation in the scheme stage and cannot be achieved in the traditional method. Load the circulation core model in the same way, form different schemes by combining with different household model modules, and conduct comparison to form the final design scheme. Finally, convert the household model group and the circulation core model group in the project into links respectively, replace and delete the original model group. Thus, the creation of the standard floor design scheme model is completed.

[0077] Furthermore, creating prefabricated household model modules and prefabricated circulation core model modules includes:

[0078] Confirm and split precast components in the housing unit model module: Open any housing unit model module, set the part visibility to display parts in the floor plan, select the precast floor slab to be split, select Create Part in the Modify / Floor tab, create reference planes for splitting the precast floor slab and name them respectively. After the reference planes are drawn, select the floor slab to be split, select Split Part in the Modify / Components tab, select the reference plane as the intersection reference method, check the names of the created reference planes for splitting the precast floor slab, click OK to complete the splitting of the floor slab. Select one of the split precast floor slabs, add notes in its property panel as composite floor slab, composite air-conditioning board or composite balcony board, uncheck the option of classifying by original material, and modify the material to precast component.

[0079] Confirm and split precast components in the traffic core model module; The method and steps for confirming and splitting precast components in the traffic core model module are the same as those for confirming and splitting precast components in the housing unit model module in step S21.

[0080] Complete the creation of the detailed dimension drawings of precast components in all housing unit model modules: Select any precast component in the housing unit model module, select the New Component command in the Modify / Part tab, modify the type name to component number, select Create View in the Modify / Component tab, select the required type, and add dimension annotation information in each view type to complete the detailed dimension drawings of the precast component and complete the creation of the detailed dimension drawings of precast components in all housing unit model modules.

[0081] Complete the creation of the detailed dimension drawings of precast components in the traffic core model module: Select any precast component in the traffic core model module, select the New Component command in the Modify / Part tab, modify the type name to component number, select Create View in the Modify / Component tab, select the required type, and add dimension annotation information in each view type to complete the detailed dimension drawings of the precast component and complete the creation of the detailed dimension drawings of precast components in all traffic core model modules.

[0082] Furthermore, generate the prefabricated standard floor model, including: Reload the completed housing unit module model and traffic core module model respectively in the standard floor design scheme model to generate the prefabricated standard floor model.

[0083] Furthermore, optimize the scheme to generate the final prefabricated building design model, including: When the scheme changes or is adjusted, find the corresponding minimum design unit model module for modification and improvement, reload it for update, and finally complete the axis network and other parts, and assemble to generate the final prefabricated building design model.

[0084] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A design method for prefabricated houses based on Revit, characterized in that: It includes the following steps: S1. Create a standard floor design scheme model: Use Revit software to divide the scheme design into two parts, namely the household model module design and the circulation core model module design. Take the household model module and the circulation core model module as the minimum design unit model modules, and form different unit model design schemes through the combination of household modules. Then, assemble the unit models into a standard floor model, and finally form a scheme design model; S2. Create prefabricated household model modules and prefabricated circulation core model modules: Based on the created standard floor design scheme model, directly confirm and split precast components in the minimum design unit model modules, and create detailed drawings of the sizes of precast components; S3. Generate a prefabricated standard floor model; S4. Optimize the scheme and generate the final prefabricated building design model; Among them, in step S2, creating prefabricated household model modules and prefabricated circulation core model modules includes: S21. Confirm and split precast components in the household model module; S22. Confirm and split precast components in the circulation core model module; S23. Complete the creation of detailed drawings of the sizes of precast components in all household model modules; S24. Complete the creation of detailed drawings of the sizes of precast components in the circulation core model module; In step S21, when confirming and splitting precast components in the household model module, it includes: Open any household model module, set the part visibility to display parts in the floor plan, select the precast floor slab to be split, select Create Part in the Modify / Floor tab, create reference planes for splitting the precast floor slab and name them respectively. After the reference planes are drawn, select the floor slab to be split, select Split Part in the Modify / Components tab, select the intersection reference method as the reference plane, check the names of the reference planes created for splitting the precast floor slab, click OK to complete the splitting of the floor slab. Select one of the split precast floor slabs, add a note in its property panel as a composite floor slab, a composite air-conditioning slab or a composite balcony slab, uncheck the option of classifying by original material, and modify the material to a precast component. In step S22, the method of confirming and splitting precast components in the circulation core model module is the same as that in step S21 for confirming and splitting precast components in the household model module.

2. The prefabricated residential design method based on Revit according to claim 1, characterized in that: In step S1, creating a standard floor design scheme model includes: S11. Create household model modules: Use the method of creating a new project in Revit software to create different household models respectively, and each household model is an independent rvt file; S12. Create a circulation core model module; S13. Create a new project, load and assemble the household model modules and the circulation core model modules in groups respectively, conduct scheme comparison and selection, and finally form a standard floor design scheme model.

3. The prefabricated residential design method based on Revit according to claim 2, wherein: In step S13, when creating a new project, select the "Load as Group" command, select the housing model module, and then select the "Place Model Group" command in the model group command to load the housing model module. Load the traffic core model module in the same way. Combine with different housing model modules to form different solutions and compare them to form the final design solution. Finally, convert the housing model group and traffic core model group in the project into links respectively, replace and delete the original model group. Thus, the standard floor design solution model is created.

4. The prefabricated residential design method based on Revit according to claim 1, characterized in that: In step S23, create the detailed drawings of the precast component sizes in all housing model modules, including: select any precast component in the housing model module, select the "New Component" command in the "Modify / Part" tab, change the type name to the component number, select "Create View" in the "Modify / Component" tab, select the required type, and add dimension annotation information in each view type to complete the detailed drawings of the precast component sizes and create the detailed drawings of the precast component sizes in all housing model modules.

5. The prefabricated residential design method based on Revit according to claim 1, characterized in that: In step S24, create the detailed drawings of the precast component sizes in the traffic core model module, including: select any precast component in the traffic core model module, select the "New Component" command in the "Modify / Part" tab, change the type name to the component number, select "Create View" in the "Modify / Component" tab, select the required type, and add dimension annotation information in each view type to complete the detailed drawings of the precast component sizes and create the detailed drawings of the precast component sizes in all traffic core model modules.

6. The prefabricated residential design method based on Revit according to claim 1, characterized in that: In step S3, generate the precast standard floor model, including: reload the precast housing model module and precast traffic core model module completed in step S2 in the standard floor design solution model respectively to generate the precast standard floor model.

7. The prefabricated residential design method based on Revit according to claim 1, characterized in that: In step S4, optimize the solution and generate the final precast building design model, including: when the solution changes or is adjusted, find the corresponding minimum design unit model module for modification and improvement, reload it for update, and finally complete the grid and other parts and assemble them to generate the final precast building design model.

8. An assembly-type residential design system based on Revit, characterized in that: including: A unit for creating the standard floor design solution model, where creating the standard floor design solution model includes: using Revit software to divide the scheme design into two parts: housing model module design and traffic core model module design, using the housing model module and traffic core model module as the minimum design unit model modules, forming different unit model design solutions through the combination method of housing modules, and then assembling the unit models into the standard floor model to finally form the scheme design model; A unit for creating the precast housing model module and precast traffic core model module, where creating the precast housing model module and precast traffic core model module includes: based on the created standard floor design solution model, directly confirm and split the precast components in the minimum design unit model module and create the detailed drawings of the precast component sizes; A unit for generating the precast standard floor model; A unit for optimizing the solution and generating the final precast building design model; where creating the precast housing model module and precast traffic core model module includes: Confirm and split precast components in the housing unit model module: Open any housing unit model module, set the part visibility to display parts in the floor plan, select the precast floor slab to be split, select Create Part in the Modify / Floor tab, create reference planes for splitting the precast floor slab and name them respectively. After the reference planes are drawn, select the floor slab to be split, select Split Part in the Modify / Components tab, select the reference plane as the intersection reference method, check the names of the reference planes created for splitting the precast floor slab, click OK to complete the splitting of the floor slab. Select one of the split precast floor slabs, add notes in its property panel as composite floor slab, composite air-conditioning panel or composite balcony panel, uncheck the option of classifying by original material, and modify the material to precast component; Confirm and split precast components in the circulation core model module; The method of confirming and splitting precast components in the circulation core model module is the same as that in the housing unit model module; Complete the creation of the detailed dimension drawings of precast components in all housing unit model modules; Complete the creation of the detailed dimension drawings of precast components in the circulation core model module.

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