Frame structure fabricated building system coordination design method, system and equipment based on module nesting and medium

Abstract

The invention provides a module nesting-based frame structure fabricated building system coordination design method, system and equipment and a medium. The method comprises the following steps: acquiring a standard structure module for forming a fabricated project frame structure system by utilizing a multi-objective optimization algorithm; combining or dividing the functional spaces, and filling the functional spaces into the standard structure module to form a plurality of nested modules; screening the plurality of nested modules to obtain a standard nested module; modular components and modular components are extracted from the obtained standard nested module, and standardized components and standardized integrated component modules are obtained; obtaining a combination coordination relationship between the standardized component and the standardized integrated component module; according to the method, mathematical logic can be established between components and parts which are not associated originally, and potential collision and interference problems are recognized and corrected in advance in the whole process from design to production processing, transportation and field assembly, so that extra energy consumption and emission caused by resource waste and construction errors are avoided.

Description

Technical Field

[0001] The present invention belongs to the field of prefabricated building design, and particularly relates to a coordinated design method, system, device and medium for a frame structure prefabricated building system based on module nesting. Background Art

[0002] Influenced by the design process corresponding to the traditional on-site construction method, the current prefabricated building design in China first completes conventional designs such as the scheme and construction drawings by the design unit, and then the splitting agency or component manufacturing factory conducts splitting design, component design and detailed structure design. Finally, after factory prefabrication, the assembly construction is completed on-site by relying on the assembled monolithic technology. This design process adds a splitting design link compared with the original conventional design, and the resulting construction method is not much different from the on-site casting (masonry) corresponding to the conventional design. It just breaks up the originally required integral casting operation tasks and transfers them to the factory for processing and then transports them to the construction site for assembly. Therefore, the design stage corresponding to the construction method completed according to the assembled monolithic technology does not break away from the conventional design process, which means that the traditional conventional design can remain unchanged, and after its completion, a "secondary splitting" can be added once, and the split parts are "prefabricated + on-site assembled", while the parts not included in the assembly unit can still be constructed by the on-site casting (masonry) method. Since the conventional design and the splitting design are carried out separately, the two have not been effectively integrated at the overall and systematic levels, and the influencing factors related to the splitting design have not been considered in advance during the conventional design process, and the close combination with links such as factory prefabrication and on-site assembly has not been systematically considered. Therefore, it is possible that the component systems such as structures and external enclosures that need to be split do not match each other, and there is no unified combined coordination relationship between the component systems and the interior decoration, facilities and equipment and other component categories systems, resulting in that various types of components and parts during the design and assembly processes cannot be restricted by a unified rule, and further making the assembly unable to achieve coordinated matching.

[0003] Among many prefabricated structural systems, the frame structure has flexible layout and single connection nodes, and is easy to meet the functional requirements of different building types. It is also the most mature structural system for the "equivalent to cast-in-place" assembled monolithic technology widely used in China at present. Therefore, it is necessary to focus on studying the coordination problems between component systems and between component systems and component category systems in frame structure prefabricated buildings. Summary of the Invention

[0004] The purpose of the present invention is to provide a coordinated design method, system, device and medium for a frame structure prefabricated building system based on module nesting, which solves the defect that the assembly result in the existing frame structure in the prefabricated structural system is not ideal during the assembly process.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: A coordinated design method for a prefabricated building system with a frame structure based on module nesting provided by the present invention includes the following steps: Step 1, according to the conventional design of the prefabricated project, combined with the multi-objective optimization algorithm, obtain the standard structural modules used to form the frame structure system of the prefabricated project; Step 2, repeat and expand the obtained standard structural modules to combine and obtain the frame structure system; Combine or divide each functional space corresponding to the conventional design of the prefabricated project and fill it in the frame structure system to form multiple nested modules; select the standard nested modules from the multiple nested modules; Step 3, extract modular components and modular parts from the obtained standard nested modules to obtain standardized components and standardized integrated part modules; Step 4, obtain the combined coordination relationship between the standardized components and the standardized integrated part modules through the multi-objective optimization algorithm.

[0006] Preferably, the method for obtaining the standard structural modules of the frame structure system through the multi-objective optimization algorithm is as follows: Set the standard structural unit and the frame structure system corresponding to the prefabricated project. Among them, the standard structural unit is a frame structure shape composed of columns and beams; the frame structure system is formed by repeating and expanding the combination of the standard structural unit; Set the limiting conditions corresponding to the standard structural unit and the frame structure system respectively; Obtain the height change range of the columns, the span change range of the beams and the cross-section change range of the frame structure components in the standard structural unit, and use the obtained height change range of the columns, the span change range of the beams and the cross-section change range of the frame structure components as the variable calculation threshold; Take the components to achieve standardization and minimize the type, the frame structure system to meet homogenization and regularization, and the frame structure system to be nested and adapted to the functional space as the objective function; Use the multi-objective optimization algorithm to perform reverse optimization search within the variable calculation threshold to obtain the standard structural modules.

[0007] Preferably, the limiting conditions of the set standard structural unit are: The span of the beam in the bay direction is equal to the span of the beam in the depth direction; the floor height direction of each floor column component is the same; The cross-sections of the column components and beam components supporting the standard structural unit are equal within their respective component types, and it should be ensured that the column cross-section and beam cross-section within their respective component types are the same; The limiting conditions of the set frame structure system are: The framework structure system shall meet the requirements of spatial organization, site conditions and various economic and technical indicators corresponding to the conventional design of the prefabricated project, and all functional spaces corresponding to the conventional design of the prefabricated project can be organically divided or freely combined in the standard structural unit, so that the combination form of the framework structure system is adapted to the functional spaces.

[0008] Preferably, a standard nested module is selected from multiple nested modules. The specific method is as follows: Set the limiting conditions of the nested module, where the limiting conditions include meeting the requirements of the functional space combination form corresponding to the conventional design of the prefabricated project, being able to be completely nested with the standard structural module after the functional space is combined or divided, and meeting the overall load requirements of the nested module; Set the variable thresholds of the functional space after combination or division and the variable thresholds of the standard structural module, and use the obtained variable thresholds as decision variables; Take the overall use function scale of the nested module meeting the requirements of ergonomic comfort, reasonable functional layout, scientific and reasonable overall mechanical transmission of the nested module, and matching of load bearing between the nested module and the framework structure system as the objective function; Use the multi-objective optimization algorithm to perform reverse optimization search within the decision variables to obtain the standard nested module.

[0009] Preferably, the variable thresholds of the functional space after combination or division include that the size in the bay direction after the functional space is combined or divided is an integer multiple of the standard structural module size range, the size in the depth direction after the functional space is combined or divided is an integer multiple of the standard structural module size range, and the size in the storey height direction after the functional space is combined or divided is an integer multiple of the standard structural module size range; The variable thresholds of the standard structural module include the beam span change range conforming to the framework structure system, the column height change range conforming to the framework structure, the cross-section change range conforming to the framework structure components, and the bay, depth and storey height conforming to the size change range of a structural unit in the framework structure system.

[0010] Preferably, modular components and modular parts are extracted from the obtained standard nested module to obtain standardized components and standardized integrated part modules. The specific method is as follows: Based on the obtained standard nested module, take the types of modular components and modular integrated parts in each system as decision variables; Set the size parameter thresholds and material density parameter thresholds corresponding to each decision variable, and use the size parameter thresholds and material density parameter thresholds corresponding to each decision variable as limiting conditions; Taking the minimization of the standardization of modular components and modular integrated parts, the minimization of the assembly types, the minimization of the life-cycle costs of components and integrated parts, and the minimization of the material usage under the condition of meeting the rationality of mechanical transmission laws as the objective function; Based on the mathematical mapping relationship between decision variables and the objective function, use the multi-objective optimization algorithm to perform optimization iteration calculations to obtain the components of the standard frame structure system, the components of the standard peripheral protection system, the standard integrated interior decoration modules, and the standard integrated facility equipment modules.

[0011] Preferably, obtain the combined coordination relationship between standardized components and standardized integrated part modules through the multi-objective optimization algorithm. The specific method is: Take the inside of the component class system and between the component class system and the part class system as decision variables respectively; Set the constraint conditions of the decision variables. Among them, the constraint conditions include the limit conditions of the size change range of each decision variable, the key factors affecting the combined coordination of standardized components and standardized integrated part modules, and the scenario parameters for different functional building types; Taking the structural strength after combined coordination, the combined deformation and expansion strength, the mechanical rationality of the connection method, and the rationality of the internal force transmission law as the objective function; Construct the mathematical mapping relationship between the decision variables with constraint conditions and the objective function, and use the multi-objective optimization algorithm to perform reverse optimization calculations to obtain the combined coordination relationship between standardized components and standardized integrated part modules.

[0012] A coordinated design system for a modular-nested frame structure prefabricated building system, including: A standard structure module acquisition unit, which is used to obtain the standard structure modules that make up the frame structure system of the prefabricated project in combination with the multi-objective optimization algorithm according to the conventional design of the prefabricated project; A standard nested module acquisition unit, which is used to perform repeated expansion and combination on the obtained standard structure modules to obtain a frame structure system; combine or divide each functional space corresponding to the conventional design of the prefabricated project and fill it in the frame structure system to form multiple nested modules; screen out the standard nested modules from the multiple nested modules; A standardized component and part extraction unit, which is used to extract modular components and modular parts from the obtained standard nested modules to obtain standardized components and standardized integrated part modules; A combined coordination relationship acquisition unit, which is used to obtain the combined coordination relationship between standardized components and standardized integrated part modules through the multi-objective optimization algorithm.

[0013] A computer device, including: A processor, suitable for executing computer programs; A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described above is executed.

[0014] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described above is implemented.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: A coordinated design method for a prefabricated building system with a framework structure based on module nesting. Under the premise of following the operation process of "conventional design + disassembly design", the research process of the present invention can provide application references and method bases for the coordinated design between prefabricated building systems of the framework structure type. While correcting and optimizing the disassembly results, it can effectively avoid the design problems caused by "conventional design + secondary disassembly", and can also play a bridging role in establishing associated constraints between components and parts for downstream factory processing and on-site assembly, so that the downstream links and subsequent operation and maintenance are more scientific and efficient. In addition, the coordinated optimization method for prefabricated building systems provided by the present invention is of great significance for realizing the low-carbon strategy and goals of the construction system. First, in the process of weighing against the original design, by reducing the structural system to a homogenized state, not only can the building form be simplified, the high demand for materials and processes caused by complex structures be reduced, but also the space utilization rate can be optimized, unnecessary construction energy consumption and operation and maintenance energy consumption be reduced, and thus the carbon emissions in the whole life cycle can be significantly reduced. Second, the screening of standard nested modules is targeted at overall load limitation, overall suitability of use functions, and matching of load bearing and force transmission with the framework structure system, revealing the actual effects of low-carbon design strategies from multiple dimensions. The reasonable screening of standard nested modules can reduce material waste caused by over-design, and at the same time improve the use efficiency of materials by optimizing the structural force transmission path. It not only meets the strength and function requirements of the building, but also realizes energy conservation and emission reduction at the design source. Third, the extraction of structural, exterior enclosure component modules, interior decoration and equipment integration modules is targeted at standardization and minimizing the number of types, combined with the dual constraints of minimizing the whole life cycle cost (including material usage investment cost and operation and maintenance cost) and minimizing the material usage, and the overall resource utilization efficiency of the building is improved through algorithm optimization. Especially through the precise control of material usage and design schemes, not only the consumption of raw materials is reduced, but also the energy use and related emissions during construction and transportation are reduced. Finally, the associated constraint relationships established by various types of components and integrated part modules according to the multi-objective optimization algorithm present mathematical combination constraints in three dimensions to achieve coordinated matching between components, between components and systems, and between systems. It establishes a mathematical logic between components and parts that originally have no associated relationship, and identifies and corrects potential collisions and interferences in advance in the whole process from design to production, transportation, and on-site assembly, so as to avoid additional energy consumption and emissions caused by resource waste and construction errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram for limiting the beam span in a standard structural unit; Figure 2 It is a schematic diagram for limiting the cross-section of components in a standard structural unit; Figure 3 It is a schematic diagram for the limiting rules of a framework structure system; Figure 4It is a schematic diagram of the transformation from a conventional design structure system to a homogenized structure system with "standard structure modules"; Figure 5 It is a schematic diagram of nested modules; Figure 6 It is a schematic diagram of standard nested modules; Figure 7 It is a schematic diagram of the homogenization transformation of the structure system and its nesting with functional spaces; Figure 8 It is a schematic diagram of structural component modules; Figure 9 It is a schematic diagram of peripheral enclosure component modules; Figure 10 It is a schematic diagram of standard integrated interior fitting modules; Figure 11 It is a schematic diagram of standard integrated facility and equipment modules. Specific implementation manners

[0017] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures, technologies, etc. are presented to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0018] Embodiment 1 This embodiment provides a coordinated design method for a prefabricated building system with a modular nested framework structure. Since the prefabricated design method of "conventional design + secondary splitting" still faces the handicraft construction of on-site casting (masonry), in order to achieve the coordinated matching goal between the component system and the component category system, the assembly-oriented design should be carried out from the very beginning in accordance with the thinking mode of designing industrial products, that is, to make the components and parts of each system standardized and coordinated with each other at the same time. First, the component system and the component category system are divided and integrated respectively. If the standardization of the structural system components is to be achieved, it is necessary to homogenize and regularize the structural system while coordinating and adapting to the functional space. Therefore, it is necessary to standardize the structural units that make up the structural system, that is, to enable the structural components in a single bay, depth, and floor height to form standard structural modules. Therefore, the main purpose of the research is first to explore the setting of standard structural modules that are adapted to the combination or division of functional spaces. Secondly, in the component category systems such as the interior decoration system and the facility and equipment system, to achieve the integrated standardization of a single component or component combination, the standard integrated modules of each component system should first be found. Since the interior decoration system and the facility and equipment system both depend on the functional spaces wrapped and divided by the structural system and the exterior envelope system, after the standard structural modules are determined, the functional spaces are combined or divided and filled into them to form nested modules, and the standard nested modules selected from many nested modules can serve as the standard integrated units on which the component category system depends. Therefore, exploring the combined design of standard nested modules becomes the only choice for the research. On this basis, the component modules of the component system and the component integrated modules of the component category system can be refined based on the standard nested modules, and through the hierarchical merger of modular design, the standard nested module of "standard structural module + functional space combination or division" can be finally obtained, which can enable the component system and the component category system to be extracted jointly based on the standard nested module, so as to ensure that the component and part units obtained after extraction are standardized.

[0019] Specifically, it includes the following steps: Step 1, according to the conventional design of the prefabricated project, combined with the multi-objective optimization algorithm, obtain the standard structural modules that make up the frame structure system of the prefabricated project; Step 2, repeat the expansion and combination of the obtained standard structural modules to obtain the frame structure system; Combine or divide each functional space corresponding to the conventional design of the prefabricated project and fill it into the frame structure system to form multiple nested modules; screen the standard nested modules from the multiple nested modules.

[0020] Step 3, extract the modular components and modular parts from the obtained standard nested modules to obtain standardized components and standardized integrated part modules.

[0021] Step 4: Obtain the combined coordination relationship between standardized components and standardized integrated component modules through a multi-objective optimization algorithm.

[0022] According to the calling rules of the model function by the multi-objective optimization algorithm in this application, explore the constraint relationships among standardized structural components, envelope components, standard integrated interior modules, and standard integrated facility equipment modules, and establish an associated model that conforms to the constraint relationships among them. Based on the above exploration process, systematically coordinate the processes of setting, screening, extraction, and constraint based on the multi-objective optimization algorithm, and sort out the key points of the interlocking combination of each part to serve as the constraint rules for coordinated optimization.

[0023] Embodiment 2 The coordinated design method of a frame structure prefabricated building system based on module nesting provided in this embodiment is characterized by including the following steps: Step 1: Based on the conventional design of the prefabricated project, combine with the multi-objective optimization algorithm to obtain the standard structure modules that make up the frame structure system of the prefabricated project Set the standard structural unit and the frame structure system corresponding to the prefabricated project. Among them, the standard structural unit is a frame structure shape composed of columns and beams; the frame structure system is formed by repeated expansion and combination of the standard structural unit.

[0024] Set the limiting conditions of the standard structural unit: The span of the beam in the bay direction is equal to the span of the beam in the depth direction; the floor height of each floor column component is the same, as Figure 1 shown; The cross-sections of the column components and beam components supporting the standard structural unit are equal within their respective component types, and it should be ensured that the column cross-section and the beam cross-section within their respective component types are the same, as Figure 2 shown.

[0025] Set the limiting conditions of the frame structure system: The frame structure system should meet the requirements of the spatial organization, site conditions, and various economic and technical indicators corresponding to the conventional design of the prefabricated project (in this embodiment, the requirements for various economic and technical indicators include plot ratio, building density, greening rate, and sunshine spacing), and combine and design the respective functional spaces corresponding to the conventional design of the prefabricated project in two-dimensional or three-dimensional dimensions. Each functional space can be organically divided or freely combined in the standard structural unit, that is, it is ensured that a larger functional space can be completely filled into a standard structural unit, or multiple smaller functional spaces can be combined and completely filled into a standard structural unit. In this way, it can ensure that the combined form of the frame structure system and each functional space is mutually adapted, as Figure 3 shown.

[0026] Obtain the height change range of columns, the beam span change range, and the cross-section change range of frame structure components in the standard structural unit, and use the obtained height change range of columns, beam span change range, and cross-section change range of frame structure components as variable calculation thresholds; in this embodiment, the beam span change range is 5m - 12m; the column height change range is 3m - 9m; the cross-section change range of frame structure components is 400mm * 400mm - 1000mm * 1000mm.

[0027] Take the standardization of components and the minimization of types, the compliance of the frame structure system with homogenization and regularization, and the nested adaptation of the frame structure system and functional spaces as the objective function; Use the multi-objective optimization algorithm to perform reverse optimization search within the variable calculation threshold to obtain the standard structural module, as Figure 4 shown.

[0028] In this embodiment, the multi-objective optimization algorithm is SPEA-2.

[0029] Step 2, screen to obtain the standard nested module based on random search Repeat and expand the obtained standard structural modules according to the limiting conditions of the frame structure system to obtain the frame structure system; On the basis of following the functional space combination form corresponding to the conventional design of this prefabricated project, optimize and coordinate the functional spaces (in this embodiment, the functional spaces include components and parts of the peripheral protection system, interior decoration system, and facility and equipment system) under the limitation of the standard structural module, so that after each type of functional space is combined or divided, it can be completely filled in the standard structural module to form a nested module, as Figure 5 shown. And different nesting types are accompanied by different load-bearing and force-bearing methods and functional space combination methods. Whether many load-bearing and force-bearing methods are reasonable and whether the functional space combination or division in different nesting types can meet the usability requirements (such as functional spaces for using water are preferably concentrated and connected together) remains to be discussed. On the premise of fully considering the overall load limit and whether the overall use function is appropriate, select the standard nested module from many "standard structural module + functional space combination or division" nested modules, as Figure 6 shown. Specifically: Take meeting the requirements of the functional space combination form corresponding to the conventional design of this prefabricated project, the ability of the functional space to be combined or divided to be completely nested with the standard structural module, and the overall load requirements of the nested module as the limiting conditions; Set the variable thresholds for the functional space combination or division and the variable thresholds for the standard structural module, and use the obtained variable thresholds as decision variables, where: The variable thresholds after the combination or division of the functional space include the range where the size of the functional space in the bay direction after combination or division is an integer multiple of the standard structural module size, the range where the size of the functional space in the depth direction after combination or division is an integer multiple of the standard structural module size, and the range where the size of the functional space in the storey height direction after combination or division is an integer multiple of the standard structural module size; The variable thresholds of the standard structural module include the range of beam span variation conforming to the frame structure system, the range of column height variation conforming to the frame structure, the range of cross-section variation of frame structure members, and the size variation range of a structural unit in the bay, depth, and storey height conforming to the frame structure system. In this embodiment, the range of beam span variation conforming to the frame structure system is 5m - 12m; the range of column height variation conforming to the frame structure is 3m - 9m; the range of cross-section variation of frame structure members is 400mm * 400mm - 1000mm * 1000mm.

[0030] Taking the overall use function scale of the nested module to meet the requirements of ergonomic comfort, the functional layout to be reasonable, the overall mechanical transmission of the nested module to be scientific and reasonable, and the load-bearing force matching between the nested module and the frame structure system as the objective function; Using a multi-objective optimization algorithm to perform reverse optimization search within the decision variables to obtain a standard nested module.

[0031] In this embodiment, the multi-objective optimization algorithm is SPEA-2.

[0032] Step 3: Extract modular components and modular parts from the obtained standard nested module to obtain standardized components and standardized integrated part modules.

[0033] Modularize the structural components that make up the standard structural modules in the component class system, and then obtain the styles and types of standard structural components; modularize the components of the peripheral enclosure system (such as exterior wall systems, curtain wall systems, roof systems, other enclosure systems, etc.) based on standard nested modules, and extract the standardized styles and types of peripheral enclosure components from the standard nested modules; integrate and modularize the interior finishing component system attached to the standard nested modules (including interior partition walls that divide the functional spaces of the standard nested modules, wall, ceiling, and floor decoration systems, pipeline laying systems, integral component systems, etc.) in the functional spaces. On the premise of referring to the unit sizes of decoration materials (such as the sizes of floor tiles and wall tiles, the unit size of ceiling grids), the market production sizes of pipelines, and the market sizes of components (such as the production sizes of indoor furniture, sanitary ware, and kitchen supplies), refine the standard integrated interior finishing modules attached to the standard nested modules, such as the sizes and specifications of the wall, ceiling, and floor decoration materials required; the sizes and specifications of indoor furniture; the sizes and specifications of indoor components; the reserved sizes for installation tolerance matching; the forms and sizes of interface modules, etc. On this basis, integrate and modularize the facility and equipment system (water supply and drainage, electrical, heating, ventilation, etc. equipment pipelines) based on the standard nested modules in two ways: vertically attached to the structural system and horizontally attached to the functional space. Furthermore, extract the constituent elements of the integrated equipment and component modules vertically attached to the standard structural modules, such as the forms and sizes of equipment pipelines, the reserved sizes for tolerance matching, and the forms and sizes of interface modules for cooperation with the structural modules. In addition, extract the constituent elements of the integrated equipment and component modules horizontally attached to the combined form of the functional space, such as the forms and sizes of equipment pipelines, the reserved sizes for tolerance matching, and the forms and sizes of interface modules for cooperation with the component modules in the peripheral enclosure system and the interior finishing component modules in the interior finishing system. Specifically: Based on the obtained standard nested modules, use the types of modular components and modular integrated components in each system as decision variables. In this embodiment, the modular components include columns, beams, floor slabs, exterior wall panels, balcony railing panels, roof panels, and interior partition walls; the modular integrated components include integrated ceilings, integrated floorings, integrated bathrooms, integrated ventilation systems, integrated heating systems, integrated drainage systems, and integrated new energy systems.

[0034] Set the threshold values of the size parameters and the threshold values of the material density parameters corresponding to each decision variable, and use the threshold values of the size parameters and the threshold values of the material density parameters corresponding to each decision variable as limiting conditions. Among them, the threshold values of the size parameters corresponding to each decision variable should comply with the size limitations of the formwork and / or molds for factory processing and production, the size and load limitations for transportation and loading, and the size and load limitations of the lifting equipment during on-site assembly and subsequent operation and maintenance.

[0035] Taking the standardization of modular components and modular integrated parts and the minimization of the types of assembly, the minimization of the life-cycle costs of components and integrated parts (in this embodiment, the life-cycle costs include the investment costs of material usage and operation and maintenance costs), and the minimization of material usage under the condition of meeting the rationality of mechanical transmission laws as the objective function.

[0036] Based on the mathematical mapping relationship between decision variables and the objective function, the SPEA2 multi-objective optimization algorithm is used for iterative optimization calculations to obtain components of the standard frame structure system, components of the standard envelope system, standard integrated interior decoration modules, and standard integrated facility equipment modules.

[0037] In this embodiment, the SPEA2 multi-objective optimization algorithm is used for iterative optimization calculations. The specific method is as follows: First, convert the standard nested module into a four-dimensional array format and try to extract it multiple times in the form of a data population. Under the limitation of the decision variable parameter threshold, calculate the fitness of the data population and the objective function in multiple extraction methods, establish a mapping environment between the decision variables and the objective function, and perform environmental selection of the data population. Judge whether the decision variables meet the optimization convergence condition. If they meet, output the optimal solution set. If not, re-match the optimal data set in the size and material parameter thresholds of the component module and the part integration module, make the decision variable data population perform crossover and mutation and re-match, and re-calculate the fitness with the objective function until the convergence condition is met.

[0038] Finally, based on the weight selection of the three objectives, formulate a trade-off decision-making criterion, screen the optimal solution set that meets the requirements, and convert the optimal solution set into the specific shapes of the component module and the part integration module.

[0039] Based on this, the constituent elements and their constituent methods of the structural component module, the envelope component module, the standard integrated interior decoration module, and the standard integrated facility equipment module under the standard nested module can be obtained, as Figures 8 to 11 shown.

[0040] Step 4, obtain the combined coordination relationship between the standardized components and the integrated part modules.

[0041] Take the inside of the component class system and between the component class system and the part class system as decision variables respectively, where: The inside of the component class system includes the structural system and the envelope system. The structural system includes column components, beam components, and floor slab components. The envelope system includes exterior wall panels, balcony railing panels, and roof panels, etc.

[0042] The component class system and the component category system include an interior finishing system and a facilities and equipment system. The interior finishing system includes interior partition walls, integrated suspended ceilings, integrated floorings, and integrated bathrooms, etc.; the facilities and equipment system includes an integrated ventilation system, an integrated heating system, an integrated drainage system, and an integrated new energy system, etc.

[0043] Set the constraint conditions of the decision variables. The constraint conditions include the limit conditions of the size change range of each decision variable, the key factors affecting the combination and coordination of standardized components and standardized integrated component modules, and the scenario parameters for different functional building types, where: The limit conditions of the size change range of each decision variable include: The lengths of columns and beams and the lengths and widths of floor slabs are incremented in steps of 1M, 3M, or 6M; The cross-sectional dimensions of columns and beams and the thickness of floor slabs should be incremented in steps of 1M, M / 2, and M / 5 respectively; The wall panels filled between columns in the bay direction and the depth direction are incremented in steps of enlarged module n·M, and the height of the partition wall panels under the vertical beams is incremented in steps of enlarged module n·M; the wall thickness is incremented in steps of 1M or enlarged module n·M; The lengths and widths of the interior partition walls are incremented in steps of 1M or enlarged module n·M, and the thickness of the interior partition walls is incremented in sub-modules. For example, in this embodiment, the sub-modules are M / 2 and M / 5, and the thickness of the interior partition walls satisfies the progression relationship of the cross-sectional dimensions of the structural members and forms a certain modular relationship with the cross-sectional dimensions of the structural members; The lengths, widths, and thicknesses of the sub-components in the facilities and equipment system are incremented in sub-modules such as M / 2, M / 5, and M / 10. The laying and installation of pipelines in the facilities and equipment system are incremented in sub-modules such as M / 2, M / 5, and M / 10; and the laying of wall, ceiling, and floor materials in the interior finishing system, the arrangement of indoor furniture, and the laying and installation of pipelines in the facilities and equipment system all conform to the modularization of the operation space reserved after the completion of the components of the frame structure system, the components of the exterior envelope system, and the components of the interior finishing system.

[0044] Summarize the key factors affecting the combination and coordination of standardized components and standardized integrated component modules based on experience. The key factors include meeting space intensification, function partitioning, modular dimension relationships, form diversity, and ergonomic requirements; Convert the obtained key factors in a parametric programming manner to obtain key factors, which include space intensification degree, function combination or partitioning meeting usage requirements, conforming to modular coordination, minimizing the types of components and integrated component modules, and human body size control.

[0045] Take the structural strength after combined coordination, the deformation and expansion strength after combination, the mechanical rationality of the connection method, and the rationality of the internal force transfer law as the objective function; Construct a mathematical mapping relationship between decision variables with constraints and the objective function, and use the SPEA2 multi-objective optimization algorithm for reverse optimization calculation to obtain the combined coordination relationship between standardized components and integrated component modules.

[0046] Embodiment 3 A coordinated design system for a modular nested frame structure prefabricated building system provided in this embodiment includes: A standard structure module acquisition unit, which is used to obtain standard structure modules for constructing the frame structure system of the prefabricated project according to the conventional design of the prefabricated project and in combination with the multi-objective optimization algorithm; A standard nested module acquisition unit, which is used to repeatedly expand and combine the obtained standard structure modules to obtain a frame structure system; combine or divide each functional space corresponding to the conventional design of the prefabricated project and fill it into the frame structure system to form multiple nested modules; screen standard nested modules from the multiple nested modules; A standardized component and part extraction unit, which is used to extract modular components and modular parts from the obtained standard nested modules to obtain standardized components and standardized integrated component modules; A combined coordination relationship acquisition unit, which is used to obtain the combined coordination relationship between standardized components and integrated component modules through the multi-objective optimization algorithm.

[0047] Embodiment 4 This Embodiment 4 provides a computer device, including: a memory for storing a computer program; a processor for implementing the steps of a computer method when executing the computer program.

[0048] When the processor executes the computer program, it implements the steps of the above computer method.

[0049] Alternatively, when the processor executes the computer program, it implements the functions of each module in the above system. The computer device may be a desktop computer, a notebook, a palm computer, a cloud server and other computing devices. The computer device may include, but is not limited to, a processor and a memory. Those skilled in the art can understand that the above are examples of computer devices, which do not constitute a limitation on the computer device, and may include more components than the above, or combine some components, or different components. For example, the computer device may further include input / output devices, network access devices, a bus, etc.

[0050] The so-called processor may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The processor is the control center of the computer device and connects various parts of the entire computer device through various interfaces and circuits.

[0051] The memory can be used to store the computer program and / or modules. The processor realizes various functions of the computer device by running or executing the computer program and / or modules stored in the memory, and by calling the data stored in the memory.

[0052] The memory may mainly include a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, phone book, etc.). In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, at least one magnetic disk storage device, flash device, or other volatile solid-state storage devices.

[0053] Embodiment 5 Embodiment 5 of the present invention also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method described above are realized.

[0054] If the modules / units of the computer system integration are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.

[0055] Based on such understanding, all or part of the processes in the above method of the present invention can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above computer method can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or preset intermediate form, etc.

[0056] The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0057] It should be noted that the content included in the computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practice within the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable storage medium does not include electrical carrier signals and telecommunication signals.

[0058] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. A coordinated design method for a prefabricated building system with a framework structure based on module nesting, characterized in that Including the following steps: Step 1: According to the conventional design of the prefabricated project, combined with the multi-objective optimization algorithm, obtain the standard structural modules used to form the frame structure system of the prefabricated project; Step 2: Repeatedly expand and combine the obtained standard structural modules to obtain the frame structure system; Combine or divide each functional space corresponding to the conventional design of the prefabricated project and fill it into the frame structure system to form multiple nested modules; Screen the standard nested modules from multiple nested modules; Step 3: Extract modular components and modular parts from the obtained standard nested modules to obtain standardized components and standardized integrated part modules; Step 4: Obtain the combined coordination relationship between standardized components and standardized integrated part modules through the multi-objective optimization algorithm.

2. The method according to claim 1, characterized in that, According to the conventional design of the prefabricated project, combined with the multi-objective optimization algorithm, obtain the standard structural modules that make up the frame structure system of the prefabricated project. The specific method is as follows: Set the standard structural unit and the frame structure system corresponding to the prefabricated project. Among them, the standard structural unit is a frame structure shape composed of columns and beams; the frame structure system is formed by repeatedly expanding and combining the standard structural units; Respectively set the limiting conditions corresponding to the standard structural unit and the frame structure system; Obtain the height change range of columns, the span change range of beams, and the cross-section change range of frame structure members in the standard structural unit, and use the obtained height change range of columns, the span change range of beams, and the cross-section change range of frame structure members as variable calculation thresholds; Take the components to achieve standardization and minimize the type, the frame structure system to meet homogenization and regularization, and the frame structure system to be nested and adapted to the functional space as the objective function; Use the multi-objective optimization algorithm to perform reverse optimization search within the variable calculation threshold to obtain the standard structural module.

3. The method according to claim 2, wherein The limiting conditions set for the standard structural unit are: The span of the beam in the bay direction is equal to the span of the beam in the depth direction; the floor height of the column members in each layer is the same; The cross-sections of the column members and beam members supporting the standard structural unit are equal within their respective component types, and it should be ensured that the column cross-section and the beam cross-section within the component type are the same respectively; The limiting conditions set for the frame structure system are: The frame structure system should meet the requirements of spatial organization, site conditions, and various economic and technical indicators corresponding to the conventional design of the prefabricated project, and each functional space corresponding to the conventional design of the prefabricated project can be organically divided or freely combined in the standard structural unit, so that the combined form of the frame structure system is mutually adapted to each functional space.

4. The method according to claim 1, wherein Screen the standard nested modules from multiple nested modules. The specific method is as follows: Set the limiting conditions of the nested module. Among them, the limiting conditions include meeting the requirements of the combined form of the functional space corresponding to the conventional design of the prefabricated project, being able to be completely nested with the standard structural module after the functional space is combined or divided, and meeting the overall load requirements of the nested module; Set the variable thresholds after the functional space is combined or divided and the variable thresholds of the standard structural module, and use the obtained variable thresholds as decision variables; Taking the overall use of nested modules with functional scales meeting the requirements of ergonomic comfort, reasonable functional layout, scientific and reasonable overall mechanical transmission of nested modules, and matching load bearing between nested modules and the frame structure system as the objective function; Using a multi-objective optimization algorithm to perform reverse optimization search within decision variables to obtain standard nested modules.

5. The method according to claim 4, wherein The variable thresholds after the combination or division of functional spaces include the size range in the bay direction after the combination or division of functional spaces being an integer multiple of the standard structural module size, the size range in the depth direction after the combination or division of functional spaces being an integer multiple of the standard structural module size, and the size range in the storey height direction after the combination or division of functional spaces being an integer multiple of the standard structural module size; The variable thresholds of the standard structural module include the beam span change range conforming to the frame structure system, the column height change range conforming to the frame structure, the cross-section change range of frame structure components, and the bay, depth, and storey height conforming to the size change range of a structural unit in the frame structure system.

6. The method according to claim 1, characterized in that Extract modular components and modular parts from the obtained standard nested modules to obtain standardized components and standardized integrated part modules. The specific method is: Based on the obtained standard nested modules, taking the types of modular components and modular integrated parts in each system as decision variables; Set the size parameter thresholds and material density parameter thresholds corresponding to each decision variable, and take the size parameter thresholds and material density parameter thresholds corresponding to each decision variable as constraint conditions; Taking the standardization and minimization of the assembly types of modular components and modular integrated parts, the minimization of the full life cycle cost of components and integrated parts, and the minimization of material usage under the condition of conforming to the rationality of mechanical transmission laws as the objective function; Based on the mathematical mapping relationship between decision variables and the objective function, using a multi-objective optimization algorithm to perform optimization iteration calculations to obtain standard frame structure system components, standard envelope system components, standard integrated interior decoration modules, and standard integrated facility and equipment modules.

7. The method according to claim 1, wherein Obtain the combined coordination relationship between standardized components and standardized integrated part modules through a multi-objective optimization algorithm. The specific method is: Taking the inside of the component class system and between the component class system and the part class system as decision variables respectively; Set the constraint conditions of the decision variables, where the constraint conditions include the constraint conditions for the size change range of each decision variable, the key factors affecting the combined coordination of standardized components and standardized integrated part modules, and the scenario parameters for different functional building types; Taking the structural strength after combined coordination, the combined deformation and expansion strength, the mechanical rationality of the connection method, and the rationality of the internal force transmission law as the objective function; Construct a mathematical mapping relationship between decision variables with constraint conditions and the objective function, and use a multi-objective optimization algorithm to perform reverse optimization calculations to obtain the combined coordination relationship between standardized components and standardized integrated part modules.

8. A coordinated design system for a prefabricated building system with a modular nested framework structure, characterized in that, Including: A standard structural module acquisition unit for obtaining standard structural modules used to form the frame structure system of the prefabricated project in combination with a multi-objective optimization algorithm according to the conventional design of the prefabricated project; A standard nested module acquisition unit is used to repeatedly expand and combine the obtained standard structure modules to obtain a framework structure system; After combining or dividing each functional space corresponding to the conventional design of the prefabricated project, it is filled into the framework structure system to form multiple nested modules; A standard nested module is screened from multiple nested modules; A standardized component and part extraction unit is used to extract modular components and modular parts from the obtained standard nested modules to obtain standardized components and standardized integrated part modules; A combination coordination relationship acquisition unit is used to obtain the combination coordination relationship between the standardized components and the standardized integrated part modules through a multi-objective optimization algorithm.

9. A computer device, characterized in that, It includes: A processor suitable for executing a computer program; A computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, it executes the method according to any one of claims 1-7.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the method according to any one of claims 1-7.

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