Fabricated building construction evaluation system based on BIM

Abstract

The invention, which relates to the technical field of voltage control, discloses a BIM-based fabricated building construction evaluation system comprising an identification stage module, an analysis stage module and an implementation stage module. In the fabricated building design of decoration construction, three-dimensional modeling of components is carried out through BIM, matching conformance indexes of all the components of decoration construction are analyzed, compatibility among the components is comprehensively checked, design is optimized in advance, whether the components of decoration construction are matched or not is judged, the component suitability is guaranteed, preparation is made for spatial layout evaluation, and the construction efficiency is improved. According to the method, the spatial layout conflict index of the decoration components is evaluated, the decoration construction process is simulated, the optimal installation sequence of all the components is judged, and the evaluation result is generated, so that the construction process can be more orderly and efficient, cross operation conflicts in construction are avoided, construction conflicts are reduced, the resource utilization efficiency is improved, and smooth proceeding of the construction process is guaranteed; the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to an evaluation system for prefabricated building construction based on BIM. Background Art

[0002] With the rapid development of the construction industry, prefabricated buildings have been widely promoted and applied globally due to their many advantages such as fast construction speed, easy quality control, energy conservation and environmental protection. In prefabricated buildings, building components are prefabricated in factories. As a digital information management tool, Building Information Modeling (BIM) technology can integrate all the information of the whole life cycle of prefabricated buildings from design, production, transportation to construction into a three-dimensional information database. Each participating party can access and update this information in real time and collaboratively, achieving a high degree of integration and sharing of information, providing a comprehensive and accurate data basis for component evaluation, and greatly changing the construction mode of traditional buildings. Therefore, it is necessary to evaluate the prefabricated building construction based on BIM.

[0003] The prior art, such as the invention application patent with the publication number of CN116630579A, discloses a construction safety control method and system for high-rise prefabricated buildings based on BIM technology, which relates to the technical field of high-rise building construction, including: establishing an automated collision inspection process for the construction site of high-rise prefabricated buildings; implementing real-time visual interaction according to the construction site of high-rise prefabricated buildings; conducting safety management of materials, personnel, equipment, and environmental factors; performing virtual walkthrough of the BIM model construction site of high-rise prefabricated buildings; and realizing pre-control of construction safety risks for high-rise prefabricated buildings. It effectively manages the construction site of high-rise prefabricated buildings, improves the safety management level and efficiency of the construction site, predicts the possible dangers in the construction project before construction, formulates corresponding countermeasures, and through integrating the information of each link, timely discovers the hazard sources and controls and processes them.

[0004] In the prior art, a BIM-based prefabricated building construction evaluation system can meet the basic requirements, but there are also some potential defects and challenges, which are specifically reflected in the following aspects: In the prior art, the analysis of the matching compliance index of each component in the decoration construction is lacking, which reduces the compatibility between components and cannot optimize the design in advance, resulting in construction period delays and cost increases caused by design defects during the construction stage, reducing the reliability of the design scheme, reducing the space utilization rate, and thus reducing the user experience. Due to the lack of judgment on whether the components in the decoration construction match, during the project decision-making process, there is a lack of accurate data support, and more scientific procurement decisions cannot be made in a timely manner, unable to ensure the smooth implementation of the project. Also, because the process of simulating the decoration construction is lacking, the preferred installation order of each component cannot be judged, and the evaluation results cannot be generated, resulting in cross-operation conflicts during the construction, increasing construction interference, and unable to ensure the smooth progress of the construction process, thus reducing the construction efficiency. Summary of the Invention

[0005] An object of the present invention is to provide a BIM-based prefabricated building construction evaluation system, which solves the problems existing in the background technology.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a BIM-based prefabricated building construction evaluation system, including: an identification stage module, an analysis stage module, and an implementation stage module.

[0007] Identification stage module: In the design of prefabricated buildings for decoration construction, through BIM, three-dimensional simulation of components is carried out, and the performance compliance value and quality compliance value of each component in the decoration construction are analyzed, and then the matching compliance index of each component in the decoration construction is analyzed.

[0008] Analysis stage module: Based on the obtained performance compliance value of each component in the decoration construction and the quality compliance value of each component in the decoration construction, it is judged whether the components in the decoration construction match. If they do not match, feedback is given. If they match, the space layout conflict index of the decoration components is evaluated.

[0009] Implementation stage module: Based on the obtained space layout conflict index of the decoration components, the process of simulating the decoration construction is carried out, the preferred installation order of each component is judged, and evaluation results are generated.

[0010] Furthermore, for the analysis of the matching compliance index of each component in the decoration construction, the analysis method is as follows: According to the decoration construction drawings and actual project requirements, use BIM software to establish a decoration construction BIM model, and obtain decoration construction model data through the geometric information and material properties of each component in the decoration construction entered in the model. Among them, the decoration construction model data includes performance data and quality data, and the performance compliance value of each component in the decoration construction is analyzed and the quality compliance value , and then analyze the component matching compliance index of the decoration construction, and its specific calculation formula is: , where represents the number of the component, , represents the quantity of the component.

[0011] Furthermore, the performance data includes the thermal conductivity of the thermal insulation material of each component of the decoration construction, the absorption value and reflection value of the sound-absorbing board, the daylighting area of the sunshade facility and the stress value of the cantilever structure, and the quality data includes: the flatness and perpendicularity of each component.

[0012] Furthermore, for the performance compliance value of each component of the decoration construction, its specific analysis method is: based on the thermal conductivity of the thermal insulation material of each component of the decoration construction obtained, the absorption value and reflection value of the sound-absorbing board, the daylighting area of the sunshade facility and the stress value of the cantilever structure, and extract the safety interval of the thermal conductivity of the thermal insulation material of each component of the decoration construction, the safety interval of the absorption value and reflection value of the sound-absorbing board, the safety interval of the daylighting area of the sunshade facility and the safety interval of the stress value of the cantilever structure from the database, and analyze the performance compliance value of each component of the decoration construction, and its specific calculation formula is: , represents the th component of the decoration construction and the th data, , represents the safety interval of the th data of the components of the decoration construction.

[0013] Furthermore, for the quality compliance value of each component of the decoration construction, its specific analysis method is: based on the flatness and perpendicularity of each component of the decoration construction obtained, and combined with the reference quality data stored in the database, through numerical fitting processing, obtain the offset of each quality data of the decoration construction, and then analyze the quality compliance value of each component of the decoration construction, and according to the following BIM component quality model, , process to obtain the quality compliance value of each component of the decoration construction , where is the offset of the th component of the decoration construction and the th quality data, , are respectively the left endpoint value and the right endpoint value of the allowable offset interval of the th quality data defined in the database, represents the component risk factor corresponding to the unit offset of the th quality data defined in the database, is the number of each component, , is any integer greater than 2, is the number of each quality data, , is any integer greater than 2.

[0014] Furthermore, the specific analysis method for determining whether the components of the decoration construction match is as follows: Based on the performance compliance values of the components of the decoration construction and the quality compliance values of the components of the decoration construction obtained, if , it is determined that the component of the decoration construction does not match the design, a report is generated, and system feedback is performed. In the formula, is a logical symbol representing "or", , represent the performance compliance values of the components of the decoration construction and the quality compliance values of the components of the decoration construction, , represent the performance compliance value thresholds of the components of the decoration construction and the quality compliance value thresholds of the components of the decoration construction.

[0015] If , then it is determined that the component of the decoration construction matches the design and installation is performed. In the formula, is a logical symbol representing "and". Collision conflict checking is performed through the BIM model, and laser scanning and photogrammetry technical means are used to collect and obtain the collision data of the decoration components at the construction site.

[0016] Furthermore, the specific analysis method for evaluating the spatial layout conflict index of the decoration components is as follows: Based on the collision data of the decoration components at the construction site obtained, where the collision data includes: the number of collision points and the total number of components in each area of each time period of the decoration components, the spatial layout conflict index of the decoration components is evaluated. The specific calculation formula is: , where represents the number of collision points in the th time period and the th area of the decoration component, represents the total number of components in the th area of the decoration component, represents the number of the time period, , represents the number of time periods, represents the number of the area, , represents the number of areas.

[0017] Further, for the process of simulating the decoration construction, the specific analysis method is as follows: Based on the obtained spatial layout conflict index of the decoration components, and extracting the threshold of the spatial layout conflict index of the decoration components from the database, compare the spatial layout conflict index of the decoration components with the threshold of the spatial layout conflict index of the decoration components, simulate the process of decoration construction, randomly generate various layout installation plans. If the spatial layout conflict index of the decoration components is less than the threshold of the spatial layout conflict index, it is used as the first-level layout installation plan. Otherwise, send a conflict feedback report for optimization and adjustment.

[0018] Further, for the judgment of the preferred installation order of each component, the specific analysis method is as follows: Based on the obtained first-level layout installation plan, through the three-dimensional visualization function of the BIM model, use the construction progress simulation function of BIM to simulate the installation order of each component in the first-level layout installation plan, match the number of collisions of each component corresponding to the first-level installation plan, and perform sorting processing respectively to evaluate the optimal component installation order.

[0019] Further, the database is used to store the safe interval of the thermal conductivity coefficient of the thermal insulation material of each component in the decoration construction, the safe interval of the absorption value of the sound-absorbing board, the safe interval of the reflection value, the safe interval of the daylighting area of the sunshade facility, the safe interval of the stress value of the cantilever structure, the offset of each quality data in the decoration construction, the threshold of the performance compliance value of each component in the decoration construction, the threshold of the quality compliance value of each component in the decoration construction, and the threshold of the spatial layout conflict index of the decoration components.

[0020] The beneficial effects of the present invention are as follows: First, in the recognition stage module and the analysis stage module: In the design of prefabricated buildings for decoration construction, through the three-dimensional model of components by BIM, analyze the matching compliance index of each component in the decoration construction, comprehensively check the compatibility between components, optimize the design in advance, avoid construction delays and cost increases caused by design defects in the construction stage, enhance the reliability of the design scheme, improve the space utilization rate, and then enhance the user experience. Based on the obtained matching compliance index of the components in the decoration construction, judge whether the components in the decoration construction are matched to ensure the adaptability of the components and prepare for the spatial layout evaluation. Evaluate the spatial layout conflict index of the decoration components. During the project decision-making process, based on the various indexes and simulation results obtained by BIM analysis, accurate data support is provided for decision-makers. By referring to the matching compliance index and the spatial layout conflict index, more scientific procurement decisions can be made to ensure the smooth implementation of the project.

[0021] II. Implementation Phase Module: Based on the obtained spatial layout conflict index of the decoration components, simulate the decoration construction process, determine the preferred installation order of each component, and generate an evaluation result, which can make the construction process more orderly and efficient, avoid cross-operation conflicts during construction, reduce construction conflicts, improve resource utilization efficiency, ensure the smooth progress of the construction process, and improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the system structure connection of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] Refer to Figure 1 As shown, the present invention provides a BIM-based prefabricated building component evaluation system, including: an identification phase module, an analysis phase module, and an implementation phase module.

[0026] It should be noted that the identification phase module is connected to the analysis phase module, the analysis phase module is connected to the implementation phase module, the identification phase module is connected to the database, the analysis phase module is connected to the database, and the implementation phase module is connected to the database.

[0027] Identification Phase Module: In the design of prefabricated buildings for decoration construction, perform three-dimensional simulation of components through BIM, analyze the performance compliance value and quality compliance value of each component in the decoration construction, and then analyze the matching compliance index of each component in the decoration construction.

[0028] In the above embodiment, when analyzing the matching compliance index of each component in the decoration construction, the analysis method is as follows: According to the decoration construction drawings and the actual project requirements, use BIM software to establish a decoration construction BIM model, and obtain the decoration construction model data by inputting the geometric information and material properties of each component in the decoration construction into the model. Among them, the decoration construction model data includes performance data and quality data, and analyze the performance compliance value of each component in the decoration construction and the quality compliance value , and then analyze the component matching compliance index of the decoration construction. The specific calculation formula is as follows: , where represents the component number, , represents the component quantity.

[0029] In the above embodiment, the performance data includes the thermal conductivity of the thermal insulation material of each component of the decoration construction, the absorption value and reflection value of the sound absorption board, the daylighting area of the sunshade facility, and the stress value of the cantilever structure. The quality data includes the flatness and perpendicularity of each component.

[0030] In the above embodiment, for the performance compliance value of each component of the decoration construction, the specific analysis method is as follows: Based on the thermal conductivity of the thermal insulation material of each component of the decoration construction, the absorption value and reflection value of the sound absorption board, the daylighting area of the sunshade facility, and the stress value of the cantilever structure obtained, and extract the thermal conductivity safety interval of the thermal insulation material of each component of the decoration construction, the absorption value safety interval and reflection value safety interval of the sound absorption board, the daylighting area safety interval of the sunshade facility, and the stress value safety interval of the cantilever structure from the database, and analyze the performance compliance value of each component of the decoration construction. The specific calculation formula is as follows: , represents the rd data of the th component of the decoration construction, represents the safety interval of the

[0031] th data of the components of the decoration construction. , where is the offset of the th th quality data of the , are respectively the left endpoint value and right endpoint value of the allowable offset interval of the th quality data defined in the database, represents the component risk factor corresponding to the unit offset of the th quality data defined in the database, is the numbering of each component, , is an arbitrary integer greater than 2, is the numbering of each quality data, , is an arbitrary integer greater than 2.

[0032] It should be noted that the reference quality data includes the flatness reference and vertical reference of each component in the decoration construction.

[0033] Analysis phase module: Based on the performance compliance values of each component in the decoration construction and the quality compliance values of each component in the decoration construction, determine whether the components in the decoration construction match. If they do not match, give feedback. If they match, evaluate the spatial layout conflict index of the decoration components.

[0034] In the above embodiment, the specific analysis method for determining whether the components in the decoration construction match is as follows: Based on the performance compliance values of each component in the decoration construction and the quality compliance values of each component in the decoration construction, if , it is determined that the component in the decoration construction does not match the design, generate a report, and give system feedback, where is a logical symbol representing "or", , represent the performance compliance values of each component in the decoration construction and the quality compliance values of each component in the decoration construction, , represent the performance compliance value thresholds of each component in the decoration construction and the quality compliance value thresholds of each component in the decoration construction.

[0035] If , it is determined that the component in the decoration construction matches the design and proceed with installation, where is a logical symbol representing "and", and perform collision conflict checking through the BIM model, and use laser scanning and photogrammetry technical means to collect and obtain the collision data of the decoration components at the construction site.

[0036] In the above embodiment, the specific analysis method for evaluating the spatial layout conflict index of the decoration components is as follows: Based on the collision data of the decoration components at the construction site obtained, where the collision data includes: the number of collision points and the total number of components in each area of each time period of the decoration components, evaluate the spatial layout conflict index of the decoration components. The specific calculation formula is: , where represents the number of collision points in the th time period and the th area of the decoration component, represents the total number of components in the th area of the decoration component, Denoted as the number of time periods, , Denoted as the quantity of time periods, Denoted as the number of regions, , Denoted as the quantity of regions.

[0037] Implementation phase module: Based on the obtained spatial layout conflict index of the decoration components, simulate the decoration construction process, determine the preferred installation order of each component, and generate an evaluation result.

[0038] In the above embodiment, the specific analysis method of the process of simulating the decoration construction is as follows: Based on the obtained spatial layout conflict index of the decoration components, extract the spatial layout conflict index threshold of the decoration components from the database, compare the spatial layout conflict index of the decoration components with the spatial layout conflict index threshold, simulate the decoration construction process, randomly generate each layout installation plan. If the spatial layout conflict index of the decoration components is less than the spatial layout conflict index threshold, it is used as the first-level layout installation plan. Otherwise, send a conflict feedback report for optimization and adjustment.

[0039] In the above embodiment, the specific analysis method of determining the preferred installation order of each component is as follows: Based on the obtained first-level layout installation plan, through the three-dimensional visualization function of the BIM model, use the construction progress simulation function of BIM to simulate the installation order of each component in the first-level layout installation plan, match the number of collisions of each component corresponding to the first-level installation plan, and perform sorting processing respectively to evaluate the optimal component installation order.

[0040] In the above embodiment, the database is used to store the safe interval of the thermal conductivity coefficient of the thermal insulation material of each component in the decoration construction, the safe interval of the absorption value of the sound-absorbing board, the safe interval of the reflection value, the safe interval of the daylighting area of the sunshade facility, the safe interval of the stress value of the cantilever structure, the offset of each quality data in the decoration construction, the performance compliance value threshold of each component in the decoration construction, the quality compliance value threshold of each component in the decoration construction, and the spatial layout conflict index threshold of the decoration components.

Claims

1. An evaluation system for prefabricated building components based on BIM, characterized in that, Including: Recognition stage module: In the prefabricated building design of decoration construction, 3D simulation of components is carried out through BIM to analyze the performance compliance values and quality compliance values of each component in decoration construction, and then analyze the matching compliance index of each component in decoration construction; The database is used to store the safe range of the thermal conductivity coefficient of the thermal insulation material of each component in decoration construction, the safe range of the absorption value of the sound-absorbing board, the safe range of the reflection value, the safe range of the daylighting area of the sunshade facility, the safe range of the stress value of the cantilever structure, the reference quality data, the offset of each quality data in decoration construction, the performance compliance value threshold of each component in decoration construction, the quality compliance value threshold of each component in decoration construction, and the spatial layout conflict index threshold of the decoration component; Analysis stage module: Based on the performance compliance values of each component in decoration construction and the quality compliance values of each component in decoration construction obtained, judge whether the components in decoration construction match. If they do not match, give feedback. If they match, evaluate the spatial layout conflict index of the decoration component; Implementation stage module: Based on the obtained spatial layout conflict index of the decoration component, simulate the process of decoration construction, judge the preferred installation order of each component, and generate an evaluation result.

2. The prefabricated building construction evaluation system based on BIM according to claim 1, characterized in that The specific analysis method of the component matching compliance index in the decoration construction is as follows: According to the decoration construction drawings and actual project requirements, use BIM software to establish a decoration construction BIM model, and obtain the decoration construction model data through the geometric information and material properties of each component in the model for decoration construction. Among them, the decoration construction model data includes performance data and quality data, and analyze the performance compliance values of each component in the decoration construction and the quality compliance values , and then analyze the component matching compliance index for decoration construction. The specific calculation formula is as follows: , where represents the component number, , represents the quantity of components.

3. The evaluation system for prefabricated building construction based on BIM according to claim 2, characterized in that, The performance data includes the thermal conductivity coefficient of the thermal insulation material of each component in decoration construction, the absorption value and reflection value of the sound-absorbing board, the daylighting area of the sunshade facility, and the stress value of the cantilever structure. The quality data includes the flatness and perpendicularity of each component.

4. The prefabricated building construction evaluation system based on BIM according to claim 2, wherein, The specific analysis method of the performance compliance value of each component in the decoration construction is as follows: Based on the thermal conductivity of the thermal insulation materials of each component in the decoration construction, the absorption value and reflection value of the sound-absorbing board, the daylighting area of the sunshade facility, and the stress value of the cantilever structure, and extracting the safety intervals of the thermal conductivity of the thermal insulation materials of each component in the decoration construction, the absorption value safety interval and reflection value safety interval of the sound-absorbing board, the daylighting area safety interval of the sunshade facility, and the stress value safety interval of the cantilever structure from the database, analyze the performance compliance values of each component in the decoration construction. The specific calculation formula is: , It is expressed as the th component in the decoration construction and the th data, , It is expressed as the safety interval of the th data of the component in the decoration construction.

5. The prefabricated building construction evaluation system based on BIM according to claim 2, characterized in that The specific analysis method of the quality compliance value of each component in the decoration construction is as follows: Based on the flatness and perpendicularity of each component in the decoration construction, and by referring to the reference quality data stored in the combined database, through numerical fitting processing, the offset of each quality data in the decoration construction is obtained. Furthermore, the quality compliance value of each component in the decoration construction is analyzed, and according to the following BIM component quality model, , the quality compliance value of each component in the decoration construction is obtained through processing , where is the offset of the th quality data of the th component in the decoration construction, and are respectively the left endpoint value and the right endpoint value of the allowable offset range of the th quality data defined in the database, represents the component risk factor corresponding to the unit offset of the th quality data defined in the database, is the number of each component, , is an arbitrary integer greater than 2, is the number of each quality data, , is an arbitrary integer greater than 2.

6. The evaluation system for prefabricated building construction based on BIM according to claim 1, characterized in that, The specific analysis method of judging whether the components in decoration construction match is as follows: Based on the performance compliance values of each component of the decoration construction and the quality compliance values of each component of the decoration construction, if , it is determined that the component of the decoration construction does not match the design, a report is generated, and system feedback is carried out, where is a logical symbol representing "or", , represent the performance compliance values of each component of the decoration construction and the quality compliance values of each component of the decoration construction, , represent the performance compliance value thresholds of each component of the decoration construction and the quality compliance value thresholds of each component of the decoration construction; If , it is determined that the component of the decoration construction matches the design and installation is carried out. In the formula is a logical symbol representing AND. Collision conflict checking is performed through the BIM model, and laser scanning and photogrammetry techniques are used to collect and obtain the collision data of the decoration components at the construction site.

7. The prefabricated building construction evaluation system based on BIM according to claim 1, characterized in that The specific analysis method of evaluating the spatial layout conflict index of the decoration component is as follows: Based on the obtained collision data of the decoration components at the construction site, where the collision data includes: the number of collision points and the total number of components in each area of each time period of the decoration components, evaluate the spatial layout conflict index of the decoration components, and its specific calculation formula is: , where represents the number of collision points in the th time period and the th area of the decoration component, represents the total number of components in the th area of the decoration component, represents the number of the time period, , represents the number of time periods, represents the number of the area, , represents the number of areas.

8. The evaluation system for prefabricated building construction based on BIM according to claim 1, characterized in that, The specific analysis method of simulating the process of decoration construction is as follows: Based on the obtained spatial layout conflict index of the decoration component, extract the spatial layout conflict index threshold of the decoration component from the database, compare the spatial layout conflict index of the decoration component with the spatial layout conflict index threshold, simulate the process of decoration construction, randomly generate each layout installation plan. If the spatial layout conflict index of the decoration component is less than the spatial layout conflict index threshold, it is used as the first-level layout installation plan. Otherwise, send a conflict feedback report for optimization and adjustment.

9. The evaluation system for prefabricated building construction based on BIM according to claim 1, characterized in that, The specific analysis method of judging the preferred installation order of each component is as follows: Based on the obtained first-level layout installation plan, through the three-dimensional visualization function of the BIM model, use the construction progress simulation function of BIM to simulate the installation order of each component in the first-level layout installation plan, match the number of collisions of each component corresponding to the first-level installation plan, and perform sorting processing respectively to evaluate the optimal component installation order.

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