Integrated collaborative method for design and construction of prefabricated buildings based on component parameter library

Abstract

The present invention discloses an integrated collaborative method for prefabricated building design and construction based on a component parameter library, which belongs to the technical field of prefabricated building design and construction, including constructing a BIM parameter system for prefabricated buildings and their prefabricated components, and establishing a prefabricated building prefabricated component parameter library based on the BIM parameter system. A component parameter library is formed through the BIM parameter system of prefabricated buildings and their prefabricated components, providing architects with accurate information that meets the requirements of subsequent construction and various professional construction in scheme design and in-depth design, guiding the application of BIM to select appropriate prefabricated components for design, increasing the depth of the first design, improving the accuracy of the optimized design, and promoting the integrated collaboration of prefabricated building design and construction.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated building design and construction, and in particular relates to an integrated collaborative method for prefabricated building design and construction based on a component parameter library. Background Art

[0002] Prefabricated buildings refer to buildings that are assembled on site from prefabricated components. At present, the design scheme of prefabricated building design (building standardization design / preliminary building design) mainly realizes the basic design optimization principle of "few specifications and more combinations" of prefabricated building components through graphical design logic means such as mathematical constraints, formal constraints and combination constraints, so as to achieve the goal of integrated design and construction. BIM technology is mainly used in in-depth design (later architectural design), while BIM and IoT integrated applications are mainly concentrated in the construction stage. The goal of both is to use digital and information means to reduce errors, omissions, collisions, and deficiencies within and between disciplines, and to achieve the ultimate goal of integrated design and construction by improving the matching degree between architectural design and actual construction, thereby improving the quality, performance and construction efficiency of prefabricated buildings.

[0003] However, the inventor believes that the prefabricated building scheme design (building standardization design / early building design) currently used by architects is mainly based on graphical design logic means such as mathematical constraints, formal constraints and combination constraints, while the BIM technology used in the in-depth design (later building design) is mainly based on information management means such as information integration, information transmission and collision check optimization, but there are certain differences in design thinking, design process and design habits between scheme design and in-depth design. At the same time, both scheme design and in-depth design need to achieve a certain breadth, depth and precision, and the construction process orientation is more important, which has higher requirements for the pre-position, integration and authenticity of the design results. The previous "three sides" (design, modify and build) construction result orientation is not applicable. At present, the in-depth design means such as "split design", "component design" and "BIM remodeling design (or reverse application)" that are matched with building standardization design are difficult to fully convey the standardized concept to the subsequent real construction, realize standardized production, transportation and assembly, and make the design meet the requirements of subsequent real construction, resulting in the final design results. It is difficult to accurately match and directly guide the subsequent real construction, resulting in a certain gap and disconnection between design and construction. In the actual construction process, "secondary repair design" is often required, but it is still difficult to accurately locate the specific content and root cause of this gap, and it is impossible to find effective solutions and countermeasures in time to carry out targeted optimization. In addition, it is difficult for architects to directly apply BIM to carry out standardized architectural design and later deepening and optimization design in the prefabricated building scheme design (early architectural design) stage. Due to the lack of information required for in-depth design, it is difficult to clarify the construction requirements of subsequent construction and various disciplines (structure, mechanical and electrical, decoration, etc.), which makes it difficult for architects to grasp the depth and boundaries of prefabricated building design. In addition, due to the different design thinking, construction experience, and understanding of standardized design of architects, they are prone to adopt personal design habits for design. The depth of their design is difficult to quantify and unify, which affects the architects' effective and efficient early architectural design and later deepening and optimization design work. Autodesk's BIM guidebook points out that the application of BIM in the design stage is mainly focused on discovering and reducing collision errors in various disciplines (34%), and is less directly applied to design optimization (8%). The later deepening and optimization design still relies on common architectural design software and customary tools (such as AutoCAD, Sketchup and Rhino, etc.), which makes it difficult to update the BIM model comprehensively, timely and accurately. At the same time, the modification and optimization of architectural design needs to be based on the detection and analysis results of each round of "phased" design results of each discipline, so there is a certain degree of passivity and lag, which affects the efficiency of architects' optimization design. At the same time, how to reasonably and effectively introduce IoT technology into architects' design work still needs further exploration. At present, there is little research and practice in this area at home and abroad.

[0004] Therefore, an integrated collaborative method for prefabricated building design and construction based on component parameter library was designed.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art. Summary of the invention

[0006] The inventors have found through research that the current in-depth design methods that are compatible with standardized architectural design are difficult to fully convey the standardized concept to subsequent real construction, realize standardized production, transportation and assembly, and make the design meet the requirements of subsequent real construction, resulting in the final design results being difficult to accurately match and directly guide the subsequent real construction, resulting in a certain gap and disconnection between design and construction. In the real construction process, "secondary repair design" is often required, but it is still difficult to accurately locate the specific content and root cause of this gap, and it is impossible to find effective solutions and countermeasures in time to carry out targeted optimization.

[0007] In view of at least one of the above technical problems, the present disclosure provides an integrated collaborative method for designing and constructing prefabricated buildings based on a component parameter library. The specific technical solution is as follows:

[0008] A method for integrated collaborative design and construction of prefabricated buildings based on a component parameter library comprises the following steps: step 1, constructing a BIM model of a prefabricated building and its prefabricated components, creating new parameter entries and setting parameter attributes in the created BIM model file, associating each parameter entry and parameter attribute in the BIM model with the design class and real construction class information of the classified prefabricated components one by one, defining and creating titles of all parameter entries in the BIM model, and then forming a BIM parameter system with the defined and created parameter entries and the corresponding parameter information; step 2, establishing a prefabricated component parameter library for prefabricated buildings based on the BIM parameter system; step 3, according to the design and construction requirements of the prefabricated buildings, Prefabricated components are selected from the library to carry out the preliminary design of prefabricated buildings, form the results of the later in-depth design, and export the initial BIM results model of prefabricated building design; Step 4, set the recognition scope and recognition conditions for the matching of the BIM parameter design result information of prefabricated components and the actual construction information; Step 5, the initial BIM results model of prefabricated building design exported in Step 3 is used for the integrated coordination of the prefabricated building design results and the actual construction. The specific process is as follows: Process 1, based on the BIM model of the prefabricated building and its prefabricated components set in Step 1, refer to the BIM parameter items and parameter information of the prefabricated components, and compare and analyze them with the exported initial BIM results model of prefabricated building design, and sort out and list the BIM of prefabricated components with existing and missing parameter information respectively. parameter entries, and lists the specific BIM parameter entries of prefabricated components that are missing parameter information; process 2, for the design information and real construction information of the BIM parameter entries of prefabricated components with existing parameter information, compare and analyze them according to the matching degree recognition range and recognition conditions set in step 4, sort out the BIM parameter entries and parameter information of prefabricated components that do not meet the real construction information and list the BIM parameter entries of prefabricated components that do not meet the real construction information; process 3, for the BIM parameter entries of prefabricated components with missing parameter information listed in process 1, search the parameter library of prefabricated components of assembled buildings, if there are corresponding design and real construction parameter information contents, supplement and add them, if there are no ... According to the actual construction parameter information content, the corresponding prefabricated component BIM parameter items with missing parameter information are listed, and supplemented and added according to the actual construction requirements to form the first optimized BIM model of the prefabricated building design results; process 4, for the prefabricated component BIM parameter items listed in process 2 that do not meet the actual construction information, search the prefabricated building prefabricated component parameter library, if there are corresponding design and actual construction parameter information content, modify and improve it according to the actual construction information, if there are no corresponding design and actual construction parameter information content, list the corresponding missing BIM parameter items, and supplement and add them according to the actual construction requirements to form the second optimized BIM model of the prefabricated building design results;Step 6: Combine the first optimized BIM model of the prefabricated building design results in step 5 and the second optimized BIM model of the prefabricated building design results to obtain the third optimized BIM model of the prefabricated building design results; Step 7: Combine the BIM model of the professional design results required for subsequent construction and the third optimized BIM model of the prefabricated building design results obtained in step 6 for testing. If unqualified, return to step 5. If qualified, obtain the final optimized BIM model of the full professional design results of the prefabricated building. The parameters of the prefabricated component BIM model are used as the information carrier and medium to reflect the design and actual construction of the prefabricated building, so as to achieve the precise positioning, comparative analysis and in-depth optimization of the gap between design and construction, and provide quantitative data support for the integrated coordination of prefabricated building design and construction. ;

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. By using the parameters of the BIM model of prefabricated components as the information carrier and medium that reflects the design and actual construction of prefabricated buildings, the gap between design and construction can be accurately located, compared and analyzed, and optimized in depth, providing quantitative data support for the integrated coordination of prefabricated building design and construction. In the early stage of prefabricated building design, the scheme design can be deepened to the real construction level. In the in-depth design stage, the integrated collaborative method of design and construction can be used to guide architectural design and other professional designers to carry out precise modification and targeted optimization of the BIM parameter items and parameter information of prefabricated components in stages and in a multi-professional collaborative manner to solve the problem of design and construction gaps, so as to achieve "less modification and more prediction", rather than the current design optimization and modification mode of "more detection and faster modification" based on BIM collision detection.

[0011] 2. In the early stage of prefabricated building design, it is possible to guide architectural design and other professionals to use real prefabricated component BIM virtual models to carry out design activities, especially to establish a systematic understanding of the completeness of professional construction information and its related requirements for architectural designers, and transform the current BIM reverse application mode of "first draw, then make a model" into a BIM forward application mode of "first model, then draw", thereby solving problems such as missing BIM model information, low model quality and poor information transmission.

[0012] 3. Expand the main function of BIM parameters as constraint element information, use the parameters of the BIM model of prefabricated buildings and their prefabricated components as a carrier for storing and representing key design information and real construction information of prefabricated buildings, and realize the medium for storing and transmitting prefabricated building design information and real construction parameter information.

[0013] 4. Form a component parameter library through the BIM parameter system of prefabricated buildings and their prefabricated components, provide architects with accurate information that meets the requirements of subsequent construction and various professional construction in the scheme design and in-depth design, guide the application of BIM to select appropriate prefabricated components for design, increase the depth of the first design, improve the accuracy of the optimized design, and promote the integrated collaboration of prefabricated building design and construction. Based on the prefabricated component parameter library of prefabricated buildings, the present invention carries out prefabricated building design by applying the BIM model of prefabricated building components in the component parameter library that meets the requirements of prefabricated building design and construction and already contains design and real construction parameter information, unifies the breadth, depth and accuracy standards of scheme design, and derives the initial prefabricated building design result BIM model. Then, by comparing and analyzing the design information of the BIM model and its prefabricated component BIM parameter items and parameter information with the real construction information, find, locate, count and analyze the specific BIM parameter items and parameter information that cause the design and construction gap problem, help architectural design and other professionals apply the integrated collaborative method of design and construction to accurately modify and target optimization in stages and multi-professional collaboration, thereby reducing the number of repeated detection, analysis and optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a flow chart of the present invention;

[0015] Figure 2 A detailed list of design BIM parameter information for a component group in a steel structure project in Embodiment 1 of the invention;

[0016] Figure 3 A screenshot of the software interface of the present invention when the BIM model file of Colunm-01 of Example 1 is opened in Autodesk Revit software;

[0017] Figure 4 A detailed list of design BIM parameter information of a component group in a certain prefabricated reinforced concrete structure project in Example 2 of the present invention;

[0018] Figure 5 A screenshot of the software interface of the present invention when opening the BIM model file of the balcony slab component YTB-01 of Example 2 in Autodesk Revit software; DETAILED DESCRIPTION

[0019] In order to better understand the purpose, structure and function of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] like Figure 1As shown, a method for integrated collaborative design and construction of prefabricated buildings based on a component parameter library is designed, including the following steps:

[0021] Step 1: construct a BIM model of the prefabricated building and its prefabricated components, create new parameter entries and set parameter attributes in the created BIM model file, associate each parameter entry and parameter attribute in the BIM model with the design class and actual construction class information of the classified prefabricated components one by one, define and create titles for all parameter entries in the BIM model, and then use the defined and created parameter entries and the corresponding parameter information to form a BIM parameter system;

[0022] Step 2: Establish a parameter library of prefabricated components for assembled buildings based on the BIM parameter system;

[0023] Step 3: According to the design and construction requirements of prefabricated buildings, select prefabricated components in the prefabricated building component parameter library to carry out the prefabricated early building scheme design, form the later in-depth design results, and export the initial BIM result model of the prefabricated building design;

[0024] Step 4: Set the matching scope and conditions of the prefabricated component BIM parameter design result information and the actual construction information;

[0025] Step 5: Integrate the prefabricated building design results and the actual construction of the initial BIM result model of the prefabricated building design derived in step 3. The specific process is as follows: Process 1: Based on the BIM model of the prefabricated building and its prefabricated components set in step 1, refer to the BIM parameter items and parameter information of the prefabricated components, and compare and analyze it with the exported initial BIM result model of the prefabricated building design, sort out and list the BIM parameter items of the prefabricated components with and without parameter information, and list the specific BIM parameter items of the prefabricated components with missing parameter information; Process 2: For the design information of the BIM parameter items of the prefabricated components with existing parameter information and the actual construction information, compare and analyze them according to the matching degree recognition range and recognition conditions set in step 4, sort out the BIM parameter items of the prefabricated components and their parameter information that meet and do not meet the actual construction information, and list the specific BIM parameter items of the prefabricated components that do not meet the actual construction information; Process 3: For the BIM parameter items in process 1, List the BIM parameter entries of prefabricated components with missing parameter information, search the prefabricated building parameter library, and if the corresponding design and real construction parameter information content is available, supplement and add it; if the corresponding design and real construction parameter information content is not available, list the corresponding BIM parameter entries of prefabricated components with missing parameter information, and supplement and add it according to the real construction requirements to form the first optimized BIM model of the prefabricated building design result; Process 4, for the BIM parameter entries of prefabricated components listed in Process 2 that do not conform to the real construction information, search the prefabricated building parameter library, and if the corresponding design and real construction parameter information content is available, modify and improve it according to the real construction information; if the corresponding design and real construction parameter information content is not available, list the corresponding missing BIM parameter entries, and supplement and add it according to the real construction requirements to form the second optimized BIM model of the prefabricated building design result;

[0026] Step 6, merging the first optimized BIM model of the prefabricated building design result and the second optimized BIM model of the prefabricated building design result in step 5 to obtain a third optimized BIM model of the prefabricated building design result;

[0027] Step seven, combine the BIM model of the professional design results required for subsequent construction with the three optimized BIM models of the prefabricated building design results obtained in step six for testing. If it fails, return to step five. If it passes, the final optimized BIM model of all professional results of the prefabricated building is obtained.

[0028] In the above implementation, two embodiments are listed to implement the above technical solution:

[0029] Example 1

[0030] This embodiment uses a column component Colunm-01 in a steel structure project as a carrier to provide an integrated collaborative method for prefabricated building design and construction based on a component parameter library, wherein Figure 2 As shown in the figure, a steel structure project includes 2 steel columns (Colunm-01, Colunm-02), 3 steel beams (Beam-01, Beam-01, Beam-02) and 1 glass curtain wall Wall-01, a total of 6 components. The method includes the following steps:

[0031] Step 1: Use Autodesk Revit BIM software to create a BIM family type file as the BIM model file of the column component Colunm-01. Create new parameter entries and set parameter properties in the created BIM model file. Preset 9 parameter entries in 3 categories in advance, such as Figure 3 As shown in the figure, it includes horizontal space parameters (component material, component length, component width and component height); vertical time parameters (completion status, planned completion time); vertical implementation parameters (component connection position, component connection method and assembly equipment). The above parameters are imported into the project parameter manager of Revit software, and the construction group of this embodiment is selected. The parameter values ​​are entered in the property column in sequence, and then the software list is opened to check the parameter information to ensure that the virtual construction parameters meet the design intention, which can provide data support for the parameters of the real construction of subsequent projects. Each parameter of the column component Colunm-01 in the BIM model is The number items and parameter attributes are associated with the design and real construction information of the classified prefabricated components one by one, and the titles of all parameter items in the BIM model column component Colunm-01 are defined and created. Then, the defined and created parameter items and the corresponding parameter information form a BIM parameter system. The parameters of prefabricated components are used as the information carrier and medium to reflect the design and real construction of prefabricated buildings, so as to achieve accurate positioning, comparative analysis and in-depth optimization of the gap between design and construction, and provide quantitative data support for the integrated coordination of prefabricated building design and construction. The BIM parameter system of prefabricated buildings and their prefabricated components constructed by the Autodesk Revit BIM family type file, as well as the parameter items therein, can guide architectural designers and professional designers to carry out relevant designs, and enter the prefabricated building design and real construction information into the corresponding prefabricated component BIM parameter items in the form of parameter information, and create prefabricated building design results (BIM models) of various professions;

[0032] Step 2: Establish a parameter library of prefabricated components for prefabricated buildings based on the BIM parameter system. The component parameter library is formed through the BIM parameter system of prefabricated buildings and their prefabricated components, providing architects with accurate information that meets the requirements of subsequent construction and various professional (structure, mechanical and electrical, decoration, etc.) construction in the scheme design and in-depth design, guiding the application of BIM and IoT technology to select suitable prefabricated components for design, increasing the depth of the first design, improving the accuracy of the optimized design, and promoting the integrated coordination of prefabricated building design and construction. The component parameter library contains BIM models of various prefabricated components, and various design and real construction information stored through parameter entries and parameter information. The component parameter library uses prefabricated component parameter information as a carrier, and regards the prefabricated building design results and real construction as consisting of all parameter entries and parameter information of various prefabricated component BIM models;

[0033] The parameter library of prefabricated components for assembled buildings refers to the use of information technology to preserve the BIM model of various prefabricated components, and to collect and store the design and real construction information of the building prefabricated components through the parameter entries and parameter information of BIM. This information can be queried and downloaded through, but not limited to, specific web pages, BIM cloud platforms, etc. The component parameter library focuses on the various types of design and real construction information stored in the parameter entries and parameter information of the BIM model of assembled building prefabricated components. The classification method of its parameter entries and parameter information corresponds to and is consistent with the specific content of the parameter entries and parameter information of the BIM parameter system in step one. The component parameter library is a design material warehouse in the design process of assembled buildings, and it is also a construction information warehouse that meets the construction requirements of various professions in the process of assembled construction. The component parameter library is a dynamic, constantly expanding design material warehouse and construction information warehouse for prefabricated components and their parameter information. It is an important basis for the design and construction of assembled buildings and has strong practicality;

[0034] Step 3: According to the design and construction requirements of prefabricated buildings, select prefabricated components in the prefabricated building component parameter library to carry out the prefabricated early building scheme design and form the later in-depth design results. The selected components already contain design and real construction information in advance, and export the initial BIM result model of prefabricated building design;

[0035] Step 4: Set the matching scope and conditions of the prefabricated component BIM parameter design result information and the actual construction information;

[0036] The scope of recognition of the matching degree of prefabricated component BIM parameter design information to the real construction information includes time BIM parameters, space BIM parameters, and implementation BIM parameters; the time BIM parameters correspond to the architectural design and real construction information of the construction process; the space BIM parameters correspond to the architectural design and real construction information of the material composition; the implementation BIM parameters correspond to the architectural design and real construction information of the prefabricated building and its component technology realization, and the time BIM parameters include the planned and actual completion period (minutes / hours / days), completion status (completed / under construction / unfinished), assembly process (steps), etc. and other related to the construction BIM parameters related to the construction process, the plan corresponds to the architectural design information, and the actual corresponds to the real construction information; the space BIM parameters include the designed and real component geometric dimensions, component model descriptions, material physical parameters, detailed composition structure, etc., and other BIM parameters related to material composition, the design corresponds to the architectural design information, and the real corresponds to the real construction information; the implementation BIM parameters include the designed and real component connection methods, component connection positions, component assembly methods (stacking forms, hanging point positions, etc.), assembly tools, etc., and other BIM parameters related to technical implementation, the design corresponds to the architectural design information, and the real corresponds to the real construction information;

[0037] The identification conditions for the matching degree of the BIM parameter design information of prefabricated components with the real construction information include the following: the numerical statistical consistency between the BIM parameter design information and the real construction information, the textual description consistency between the BIM parameter design information and the real construction information, the graphic expression consistency between the BIM parameter design information and the real construction information, and may also include any other relevant identification methods and technologies for determining the consistency between the BIM parameter design information and the real construction information content;

[0038] The basis for creating the design information of the prefabricated building and its prefabricated components includes the specific requirements, needs and relevant technical support documents of the prefabricated building project, such as bidding documents, task orders, relevant specifications, technical regulations and component technical data, as well as the design results carried out by architectural designers and professional designers based on the above-mentioned relevant documents, personal professional skills, professional knowledge and practical experience;

[0039] The source of the real construction information collection includes the existing technical data related to prefabricated components, and the technical data includes the technical drawings, technical specifications, and construction instructions of the prefabricated components. The technical drawings can be scheme drawings, detailed drawings, construction drawings, etc.; if the prefabricated components have not been used in existing prefabricated building projects, they are existing finished components, and the information source is the existing technical data related to the components, and the technical data includes the technical drawings (scheme drawings, detailed drawings and construction drawings, etc.), technical specifications, construction instructions, etc. of the components. If the prefabricated components have been used in existing prefabricated building projects, the information source, in addition to the technical data, also comes from the real construction information collected from the existing prefabricated building projects, including the information of the prefabricated components in the factory manufacturing, mid-transportation and on-site construction stages collected by related devices and IoT technologies such as radio frequency identification, code identification, laser scanning and image capture. In the present disclosure, the information of the prefabricated components in the factory manufacturing, mid-transportation and on-site construction stages can be collected by scanning the RFID chip in each prefabricated component or the QR code pasted by a handheld device. Based on this, the prefabricated building BIM model established by using Autodesk Revit software is improved;

[0040] Furthermore, the actual construction information of the prefabricated building and its components described in the present disclosure can be collected based on IoT technology, and the collected information data can be fed back to the BIM cloud platform and the relevant BIM parameters of each prefabricated component in the prefabricated building BIM model established by various professional applications of Autodesk Revit software. In the present disclosure, the cloud platform can be Autodesk BIM 360, and then continue to compare, analyze and optimize the prefabricated building design result information and the real construction information according to step 5. Through the BIM parameter system of prefabricated buildings and their prefabricated components, the architectural design and real construction information of prefabricated buildings and their components are collected by applying BIM parameter integration and IoT technology, so that architectural design and other professionals can use the parameter items and parameter information of BIM models and their prefabricated components as information media and bridges in the early stage of prefabricated building design, helping architectural design and other professionals to use standardized and complete architectural design and real construction information to carry out BIM positive application of prefabricated building design, reduce the passivity and lag of optimization design, and accurately predict, locate and solve problems that may arise in subsequent real construction. More importantly, the establishment of component parameter library is a process of continuous supplementation, updating and improvement. When the prefabricated components and their parameter information cannot meet the corresponding design and construction requirements. The real construction information of prefabricated components can be collected through all relevant means such as IoT technology collection, research and development trials, and then stored in the component parameter library after verification by relevant professional specifications or technical demonstrations for future use. BIM, BIM cloud platform (BIM-Cloud) and IoT technology are used to integrate and count the BIM parameter information of prefabricated buildings and their prefabricated components in the design stage, as well as to track and provide feedback in the actual construction stage. Combined with the existing real construction information of prefabricated building prefabricated components, the systematic collection of the specific content of prefabricated building design information and real construction parameter information is achieved;

[0041] The specific collection process can be to export the BIM model of a component group in a steel structure project in Example 1 through the corresponding BIM cloud platform plug-in in the Revit software, and import it into the BIM cloud platform to generate a QR code or RFID chip for tracking and collecting the real construction BIM parameter information of each prefabricated building component; paste or embed the QR code or RFID chip into the corresponding component as a carrier and basis for tracking component information. This process can be implemented in different stages such as component factory delivery, component transportation or component assembly according to needs; in the real construction process, use a mobile phone APP to scan the QR code of the corresponding component, and upload the image data of the real construction on site to the BIM cloud platform. In the comparison between virtual construction and real construction, relevant information can be extracted from the platform;

[0042] Step 5: The initial BIM result model of the prefabricated building design derived in step 3 is used for integrated coordination between the prefabricated building design results and the actual construction. The specific process is as follows:

[0043] Process 1: Based on the BIM model of the prefabricated building and its prefabricated components set in step 1, refer to the BIM parameter items and parameter information of the prefabricated components, compare and analyze with the exported initial BIM result model of the prefabricated building design, sort out and list the BIM parameter items of the prefabricated components with and without parameter information, and list the BIM parameter items of the prefabricated components with specific missing parameter information;

[0044] Among them, the design information of the prefabricated building BIM model and its prefabricated component BIM parameter items and parameter information are compared and analyzed with the real construction information using an automatic detection method, specifically: export the prefabricated building BIM model in IFC format in Autodesk Revit software, set BIM model detection rules in the model detection menu of BIM model detection software Solibri Model Checker (SMC) software, preferably, taking the setting rules of spatial BIM parameter items of prefabricated components as an example, the detection rule of component geometric dimension parameter items is whether the tolerance value with other adjacent prefabricated components is met; the detection rule of detailed composition construction parameter items is whether there is enough space at the connection position of the component, etc., according to the BIM parameter system of the prefabricated building and its prefabricated components, select BIM parameter items and parameter information that can be detected by the BIM model quality detection software from the matching degree recognition range of the prefabricated component BIM parameter design result information and the real construction information set in step 4. In the present disclosure, preferably, the detection rule is to find the prefabricated component BIM parameter items with missing parameter information, then run the automatic detection program, and finally select the BIM parameter items and parameter information that can be detected by the BIM model quality detection software from the BIM model quality detection software. Export the test results; for the remaining BIM parameter items and parameter information that cannot be detected by the BIM model quality inspection software within the range of the matching degree between the BIM parameter design result information and the actual construction information set in step 4, export a detailed list; sort out the BIM parameter items of the prefabricated components with existing and missing parameter information based on the exported test results and detailed list, and list the specific missing BIM parameter items; based on the matching degree identification conditions between the BIM parameter design result information and the actual construction information set in step 4, manually review the test results of whether the BIM parameter design information exported from the BIM model quality inspection software conforms to the actual construction information, and compare the BIM parameter items and their parameter information in the detailed list one by one to determine whether their design information conforms to the actual construction information;

[0045] In the present disclosure, all 6 components in the parameter information integrity test passed the test, that is, the parameter entry and parameter information are consistent with the virtual design, and there are no missing items. Therefore, for the automatic detection of parameter information in this embodiment, DCY=9, DCQ=0. This result can be combined with manual verification to perform numerical calculations on the matching degree of a single component and the matching degree of the overall project; in the adjacent component tolerance test, a total of 6 components were identified and tested by the program, of which 3 components passed the test, that is, the component geometric dimensions met the design requirements; 3 components did not pass the test and had errors, that is, the components did not meet the design requirements and needed to return to the BIM model for size calibration or optimization design. According to the SMC software test results, there are three components, namely, steel structure beams Beam-01, Beam-01, and Beam-02, which do not meet the design requirement of a minimum tolerance of 5mm between component distances. Therefore, we return to the Revit design model and adjust the corresponding component sizes in turn. The component length parameter values ​​of the two steel structure beams Beam-01 are adjusted from 2800 to 2790, and the component length parameter value of the steel structure beam Beam-02 is adjusted from 2400 to 2390. After the Revit model parameters are modified, the optimized model is imported into the SMC software in IFC format again to perform component adjacent tolerance detection to verify the optimization design results. After re-testing with the SMC software, all six components in the present disclosure have passed the test, so that the optimization design has achieved the established goals. On the other hand, the component length parameters of the steel structure beams in the actual construction parameter statistics table can also indirectly prove that the optimized design meets the actual conditions.

[0046] Similarly, the comparison and analysis of the design information of the prefabricated building BIM model and its prefabricated component BIM parameter items and parameter information with the actual construction information can also be carried out by manual investigation. The specific method of the manual investigation is as follows: based on the BIM parameter system of the prefabricated building and its prefabricated components, combined with the matching degree of the prefabricated component BIM parameter design result information and the actual construction information set in step 4, the BIM parameter system of the prefabricated building and its prefabricated components is compared with the actual construction information in the Autodesk Open the prefabricated building BIM model in Revit software, and select the prefabricated component BIM parameter items and parameter information that need to be compared and analyzed in the available fields in the detail list properties dialog box; sort out the prefabricated component BIM parameter items with existing and missing parameter information based on the exported detail list, and list the specific missing BIM parameter items; according to the matching degree identification conditions of the prefabricated component BIM parameter design result information and the actual construction information set in step 4, compare the prefabricated component BIM parameter items and their parameter information in the exported detail list one by one, and compare whether the design information of all prefabricated component BIM parameters in the exported detail list is consistent with the actual construction information in terms of digital statistics, text descriptions, and image expressions, etc., to determine whether its design information is consistent with the actual construction information, and sort out the BIM parameter items and their parameter information that do not meet the actual construction information;

[0047] The specific steps are to export the design BIM parameter information list in the Revit software, manually review the real construction information of the BIM parameters of the prefabricated components and generate a statistical table of the real construction parameter information, and verify whether the design information of the BIM parameters of the prefabricated components matches the real construction information.

[0048] In this embodiment, the BIM parameter information matching, identification and design optimization of the virtual design and real construction types of the steel structure beam component Beam-01 are shown in Table 1:

[0049] Table 1 Steel structure beam components Beam-01

[0050]

[0051] For the steel structure beam component Beam-01, the number of existing parameter information entries is 9, and the number of missing parameter information entries is 0, that is, DCY=9, DCQ=0; the component length parameter in the horizontal space parameter of the beam component does not match the preset, which is due to the inconsistency between the numerical statistics of the design information of the BIM parameter and the actual construction information; the assembly equipment parameter in the vertical implementation parameter does not match the preset, which is due to the inconsistency between the text description of the design information of the BIM parameter and the actual construction information.

[0052] In this embodiment, the BIM parameter information matching analysis and evaluation calculation of the virtual design and real construction types of the steel structure column component Colunm-01 are shown in Table 2:

[0053] Table 2 Steel structure column components Colunm-01

[0054]

[0055] For the steel structure column component Colunm-01, the actual completion time parameter in the longitudinal time parameter and the assembly machine parameter in the vertical implementation parameter are inconsistent with the preset, which also belongs to the inconsistency between the text description of the design information of the BIM parameter and the actual construction information; and the component connection method parameter in the vertical implementation parameter is inconsistent with the preset, which belongs to the inconsistency between the graphic expression of the design information of the BIM parameter and the actual construction information; Process 2, for the design information and the actual construction information of the BIM parameter items of the prefabricated components with existing parameter information, according to the matching degree recognition range and recognition conditions set in step 4, a comparison analysis is carried out, and the BIM parameter items and parameter information of the prefabricated components that meet and do not meet the actual construction information are sorted out, and the specific BIM parameter items of the prefabricated components that do not meet the actual construction information are listed;

[0056] Process 3: For the prefabricated component BIM parameter entries with missing parameter information listed in process 1, search the prefabricated building prefabricated component parameter library. If the corresponding design and real construction parameter information content is available, supplement and add it. If the corresponding design and real construction parameter information content is not available, list the prefabricated component BIM parameter entries with the corresponding missing parameter information, and supplement and add them according to the actual construction requirements to form the first optimized BIM model of the prefabricated building design result.

[0057] Process 4: For the BIM parameter entries of prefabricated components that do not conform to the real construction information listed in process 2, search the prefabricated building prefabricated component parameter library. If there are corresponding design and real construction parameter information contents, modify and improve them according to the real construction information. If there are no corresponding design and real construction parameter information contents, list the corresponding missing BIM parameter entries, and supplement and add them according to the real construction requirements to form a secondary optimization BIM model of the prefabricated building design results.

[0058] Expand the main function of BIM parameters as constraint element information, use the parameters of the BIM model of prefabricated buildings and their prefabricated components as a carrier for storing and representing the key design information and real construction information of prefabricated buildings, and realize the medium for storing and transmitting prefabricated building design information and real construction parameter information;

[0059] Step 6: Use Autodesk Revit software to import the first optimization BIM model of the prefabricated building design results and the second optimization BIM model of the prefabricated building design results, merge and update the first optimization BIM model of the prefabricated building design results and the second optimization BIM model of the prefabricated building design results in step 5 in the software, and export the third optimization BIM model of the prefabricated building design results;

[0060] Step seven, use Autodesk Revit software to import the IFC format of the BIM model of the design results of various disciplines (structure, mechanical and electrical, decoration, etc.) required for subsequent construction, and merge the BIM model of the professional design results required for subsequent construction with the three optimized BIM models of the prefabricated building design results obtained in step six for inspection. If unqualified, return to step five, and if qualified, the final optimized BIM model of the full professional design results of the prefabricated building is obtained. The parameters of the BIM model of prefabricated components are used as the information carrier and medium that reflects the design and actual construction of prefabricated buildings, so as to achieve accurate positioning, comparative analysis and in-depth optimization of the gap between design and construction, and provide quantitative data support for the integrated coordination of prefabricated building design and construction.

[0061] Example 2

[0062] This embodiment uses a balcony slab component YTB-01 in a prefabricated concrete structure project as a carrier to provide an integrated collaborative method for prefabricated building design and construction based on a component parameter library, wherein, Figure 4 As shown, the prefabricated assembled concrete structure project includes a prefabricated concrete balcony slab component YTB-01, a prefabricated concrete balcony partition YTGB-01, and two prefabricated concrete balcony balustrades YTLB-01 and YTLB-02, a total of 4 components. The method includes the following steps:

[0063] Step 1: Use Autodesk Revit BIM software to create a BIM family type file as the BIM model file of the prefabricated building components. Create new parameter entries and set parameter properties in the created BIM model file. Preset 10 parameter entries in 3 categories in advance, such as Figure 5 As shown, it includes horizontal space parameters (component material, component length, component width and component height); vertical time parameters (completion status, planned completion time); vertical implementation parameters (support point position, component connection position, component connection method and assembly equipment). The above parameters are imported into the project parameter manager of Revit software, and the construction group of this embodiment is selected. The parameter values ​​are entered in the property column in sequence, and then the software list is opened to check the parameter information to ensure that the virtual construction parameters meet the design intent, which can provide data support for the parameters of the real construction of subsequent projects;

[0064] The implementation method of component parameter information traceability feedback based on BIM platform and Internet of Things is detailed in Example 1; in Revit software, the BIM model of a component group in a steel structure project in Example 1 is exported through the corresponding BIM cloud platform plug-in in Revit software, and imported into the BIM cloud platform to generate a QR code or RFID chip for tracking and collecting the real construction BIM parameter information of each prefabricated building component; the QR code or RFID chip is pasted or embedded in the corresponding component as a carrier and basis for tracking component information. This process can be implemented in different stages such as component factory delivery, component transportation or component assembly according to needs; in the real construction process, the QR code of the corresponding component is scanned with a mobile phone APP, and the image data of the real construction on site is uploaded to the BIM cloud platform. In the comparison between virtual construction and real construction performed manually, relevant information can be extracted from the platform; the virtual construction parameter information list of the present disclosure in Revit software is exported, the real construction information of the BIM parameters of the prefabricated components is manually reviewed, and the real construction parameter information statistical table of this embodiment is generated.

[0065] In this embodiment, as shown in Table 3, the matching analysis and evaluation of BIM parameter information between virtual design and real construction of precast concrete balcony slab component YTB-01 is as follows:

[0066] Table 3 Precast concrete balcony slab components YTB-01

[0067]

[0068] It can be seen from Table 3 that the component length parameters in the transverse space parameters of the precast concrete balcony slab components are inconsistent with the preset, which belongs to the inconsistency between the digital statistics of the design information of the BIM parameters and the actual construction information; the assembly machine parameters in the vertical implementation parameters are inconsistent with the preset, which belongs to the inconsistency between the text description of the design information of the BIM parameters and the actual construction information.

[0069] As shown in Table 4, the matching analysis and evaluation of BIM parameter information between virtual design and real construction of precast concrete balcony balustrade YTLB-01:

[0070] Table 4

[0071]

[0072] From the above, it can be seen that for the precast concrete balcony balustrade YTLB-01, the component length parameter in the horizontal space parameter does not match the preset, which belongs to the inconsistency between the digital statistics of the design information of the BIM parameter and the actual construction information; the actual completion time parameter in the longitudinal time parameter and the assembly machine parameter in the vertical implementation parameter do not match the preset, which belongs to the inconsistency between the text description of the design information of the BIM parameter and the actual construction information; the component link position in the vertical parameter does not match the preset, which belongs to the inconsistency between the graphic expression of the design information of the BIM parameter and the actual construction information.

[0073] Sort out the BIM parameter entries and parameter information of prefabricated components that meet and do not meet the real construction information, and list the BIM parameter entries of prefabricated components that do not meet the real construction information; for the BIM parameter entries of prefabricated components with missing parameter information listed in process 1, search the parameter library of prefabricated components of prefabricated buildings. If there are corresponding design and real construction parameter information contents, supplement and add them; if there are no corresponding design and real construction parameter information contents, list the corresponding BIM parameter entries of prefabricated components with missing parameter information, and supplement and add them according to the real construction requirements to form the first optimized BIM model of the prefabricated building design results; for the listed prefabricated components that do not meet the real construction information, search the parameter library of prefabricated components of prefabricated buildings. M parameter entry, search the prefabricated component parameter library of prefabricated buildings, if there are corresponding design and real construction parameter information contents, modify and improve them according to the real construction information, if there are no corresponding design and real construction parameter information contents, list the corresponding missing BIM parameter entries, and supplement and add them according to the real construction needs to form a secondary optimized BIM model of the prefabricated building design results; merge the models before and after each optimization and test them, if qualified, obtain the final optimized BIM model of the full professional design results of the prefabricated building, if not qualified, modify and improve them again according to the real construction information, repeat the above steps until the final optimized BIM model of the full professional design results of the prefabricated building is obtained.

[0074] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A method for integrated collaborative design and construction of prefabricated buildings based on a component parameter library, characterized in that: The following steps are involved: Step 1: construct a BIM model of the prefabricated building and its prefabricated components, create new parameter entries and set parameter attributes in the created BIM model file, associate each parameter entry and parameter attribute in the BIM model with the design class and actual construction class information of the classified prefabricated components one by one, define and create titles for all parameter entries in the BIM model, and then use the defined and created parameter entries and the corresponding parameter information to form a BIM parameter system; Step 2: Establish a parameter library of prefabricated components for assembled buildings based on the BIM parameter system; Step 3: According to the design and construction requirements of prefabricated buildings, select prefabricated components in the prefabricated building component parameter library to carry out the prefabricated early building scheme design, form the later in-depth design results, and export the initial BIM result model of the prefabricated building design; Step 4: Set the matching scope and conditions of the prefabricated component BIM parameter design result information and the actual construction information; Step 5: Integrate the prefabricated building design results and the actual construction of the initial BIM result model of the prefabricated building design derived in step 3. The specific process is as follows: Process 1: Based on the BIM model of the prefabricated building and its prefabricated components set in step 1, refer to the BIM parameter items and parameter information of the prefabricated components, and compare and analyze it with the exported initial BIM result model of the prefabricated building design, and sort out and list the BIM parameter items of the prefabricated components with and without parameter information, and list the specific BIM parameter items of the prefabricated components with missing parameter information; Process 2: For the design information of the BIM parameter items of the prefabricated components with existing parameter information and the actual construction information, compare and analyze them according to the matching degree recognition range and recognition conditions set in step 4, sort out the BIM parameter items of the prefabricated components and their parameter information that meet and do not meet the actual construction information, and list the specific BIM parameter items of the prefabricated components that do not meet the actual construction information; Process 3: For the BIM parameter items listed in process 1 1. The BIM parameter entries of prefabricated components with missing parameter information are listed, and the prefabricated component parameter library of prefabricated buildings is searched. If the corresponding design and real construction parameter information contents are available, the prefabricated component BIM parameter entries with corresponding missing parameter information are supplemented and added. If the corresponding design and real construction parameter information contents are not available, the prefabricated component BIM parameter entries with corresponding missing parameter information are listed, and supplemented and added according to the real construction requirements to form the first optimized BIM model of the prefabricated building design results; process 4, for the prefabricated component BIM parameter entries listed in process 2 that do not conform to the real construction information, the prefabricated building prefabricated component parameter library is searched. If the corresponding design and real construction parameter information contents are available, the prefabricated component parameter library is modified and improved according to the real construction information. If the corresponding design and real construction parameter information contents are not available, the corresponding missing BIM parameter entries are listed, and supplemented and added according to the real construction requirements to form the second optimized BIM model of the prefabricated building design results; In the process 2 of step 5, the design information of the prefabricated building BIM model and its prefabricated component BIM parameter items and parameter information are compared and analyzed with the actual construction information using manual investigation and / or automatic detection; The specific method of the manual investigation method is: according to the BIM parameter system of the prefabricated building and its prefabricated components, combined with the matching degree identification range of the prefabricated component BIM parameter design result information and the actual construction information set in step 4, a detailed list containing the BIM parameter items and parameter information of the prefabricated components is exported from the BIM model of the prefabricated building; according to the exported detailed list, the BIM parameter items of the prefabricated components with existing and missing parameter information are sorted out, and the specific missing BIM parameter items are listed; according to the matching degree identification condition of the prefabricated component BIM parameter design result information and the actual construction information set in step 4, the BIM parameter items of the prefabricated components and their parameter information in the exported detailed list are compared one by one, and it is determined whether the design information thereof is consistent with the actual construction information; The specific method of the automatic detection is: importing the BIM model of the prefabricated building into the BIM model quality detection software, selecting BIM parameter items and parameter information that can be detected by the BIM model quality detection software from the identification range of the matching degree between the BIM parameter design result information of the prefabricated components and the actual construction information set in step 4 according to the BIM parameter system of the prefabricated building and its prefabricated components, setting the detection rules, and then running the automatic detection program, and finally exporting the detection results from the BIM model quality detection software; for the remaining BIM parameter items and parameter information that cannot be detected by the BIM model quality detection software in the identification range of the matching degree between the BIM parameter design result information of the prefabricated components and the actual construction information set in step 4, The BIM parameter items and parameter information detected by the detection software are exported into a detailed list; based on the exported detection results and detailed list, the BIM parameter items of prefabricated components with existing and missing parameter information are sorted out, and the specific missing BIM parameter items are listed; based on the identification conditions for the matching degree between the BIM parameter design result information and the actual construction information set in step 4, the detection results of whether the BIM parameter design information exported from the BIM model quality detection software conforms to the actual construction information are manually reviewed, and the BIM parameter items and parameter information of the prefabricated components in the detailed list are compared one by one to determine whether their design information conforms to the actual construction information; Step 6, merging the first optimized BIM model of the prefabricated building design result and the second optimized BIM model of the prefabricated building design result in step 5 to obtain a third optimized BIM model of the prefabricated building design result; Step seven, combine the BIM model of the professional design results required for subsequent construction with the three optimized BIM models of the prefabricated building design results obtained in step six for testing. If it fails, return to step five. If it passes, the final optimized BIM model of the full professional design results of the prefabricated building is obtained.

2. The integrated collaborative method for design and construction of prefabricated buildings based on a component parameter library according to claim 1 is characterized in that: Summarize the processes 3 and 4 of step 5, and list the missing BIM parameter items that do not conform to the actual construction information after the final optimized BIM model of the full-professional results of the prefabricated building in step 7 is checked, as well as the corresponding supplemented, added, modified and improved BIM parameter information, and update them in the prefabricated building prefabricated component parameter library described in step 2.

3. The integrated collaborative method for design and construction of prefabricated buildings based on a component parameter library according to claim 1, characterized in that: In the step 4, the matching degree of the prefabricated component BIM parameter design information to the real construction information is set to include time BIM parameters, space BIM parameters, and implementation BIM parameters; the time BIM parameters correspond to the architectural design and real construction information of the construction process; the space BIM parameters correspond to the architectural design and real construction information of the material composition; The implementation-type BIM parameters correspond to the architectural design and actual construction information of the prefabricated building and its component technology.

4. The integrated collaborative method for design and construction of prefabricated buildings based on a component parameter library according to claim 1, characterized in that: The prefabricated building component parameter library collects and stores design and actual construction information of prefabricated building components through BIM parameter entries and parameter information.

5. The integrated collaborative method for design and construction of prefabricated buildings based on component parameter library according to claim 1 is characterized in that: The basis for creating the design information of the prefabricated building and its components includes the specific requirements, needs and relevant technical support documents of the prefabricated building project.

6. The integrated collaborative method for design and construction of prefabricated buildings based on component parameter library according to claim 1 is characterized in that: The real construction information collection source includes existing technical data related to prefabricated components, and the technical data includes technical drawings, technical specifications, and construction instructions of the prefabricated components.

7. The integrated collaborative method for design and construction of prefabricated buildings based on component parameter library according to claim 1 is characterized in that: The actual construction information of the prefabricated building and its components is collected based on IoT technology, and the collected information data is fed back to the BIM cloud platform and the relevant BIM parameters of each prefabricated component in each professional BIM model, so as to continue to compare, analyze and optimize whether the prefabricated building design result information matches the actual construction information according to step five.

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