CN113743727A - Building monitoring method based on BIM - Google Patents
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06F30/00—Computer-aided design [CAD]
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- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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Abstract
The invention discloses a building monitoring method based on BIM, which comprises the following steps: the platform maintenance management module is used for managing and maintaining a platform system, including the management of platform user accounts, the management of authority and modules and the recording of platform operation error logs, carrying out the construction of a target building according to a construction drawing of the building construction, acquiring the construction data of a constructed part at a construction site in the construction process, constructing a building construction drawing and according to the constructed construction drawing; according to the invention, through forming the standard and method of the whole-process ancient building protection based on the BIM technology, a BIM model lightweight display method is explored, the construction and monitoring management of the ancient building engineering project is realized, the method is different from the existing mainstream C/S framework, a complex ancient building engineering BIM platform based on the B/S framework is built, the real-time data monitoring of the ancient building is realized, and the powerful technical guarantee is provided for the smooth completion of the ancient building engineering.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a building monitoring method based on BIM.
Background
The BIM-based overall process historic building protection supervision platform is a software platform researched and developed by the standard and method of overall process historic building protection based on the BIM technology, and is applied to the overall processes of design, construction, monitoring, management and the like of the historic building protection.
In the existing building construction supervision method, engineering technicians judge according to construction experiences according to collected building information, the manual judgment result often has larger deviation, the finally made counter measures are often not optimal, the BIM cannot provide support for the whole life cycle management of engineering projects and cannot be distinguished from the existing mainstream C/S framework, a large amount of quantities cannot be monitored in time, the monitoring workload is increased, mistakes are easy to make, and the management is inconvenient.
Disclosure of Invention
The invention aims to provide a building monitoring method based on BIM, which has the advantages that the BIM can provide support for the whole life cycle management of engineering projects, can be distinguished from the existing mainstream C/S framework and can monitor a large number of quantities in time, and solves the problems that the BIM cannot provide support for the whole life cycle management of the engineering projects, cannot be distinguished from the existing mainstream C/S framework and cannot monitor a large number of quantities in time.
In order to achieve the purpose, the invention provides the following technical scheme: a BIM-based building monitoring method comprises the following steps:
step 1: the platform maintenance management module is used for managing and maintaining a platform system, and comprises the management of a platform user account, the management of authority and a module and the recording of a platform operation error log;
step 2: carrying out construction of a target building according to a construction drawing of building construction, and collecting building data of a constructed part on a building construction site in the construction process;
and step 3: building a construction drawing, setting a vertical central axis for a target building according to the built construction drawing, and building a BIM (building information modeling) model of the target building in a computer;
and 4, step 4: the BIM model data management module is used for carrying out Json format data structure conversion on the digital point cloud and the ancient building model generated by the close-range photogrammetry technology;
and 5: the BIM data modeling and analyzing module is used for importing a BIM model and a peripheral field model, displaying the BIM model in a three-dimensional visualization mode at a Web platform end, moving, zooming and sectioning the BIM model in a three-dimensional mode, and inquiring attribute information of model components;
step 6: the construction simulation module is used for compiling a construction progress plan on line, comparing the planned progress with the actual progress, realizing three-dimensional visual construction simulation at the Web platform end, conveniently and intuitively mastering construction progress information, and facilitating construction design and adjusting the engineering progress according to site construction conditions;
and 7: the project cost module is used for comparing and simulating the planned progress and the actual progress, so that the project progress can be displayed more intuitively;
and 8: the safety management module is used for integrating and managing engineering data and storing CAD drawings, construction files, construction drawings and the like of the engineering in the platform;
and step 9: the data monitoring module can realize the access of the real-time data of the novel low-power-consumption sensor based on the Internet of things, and organically integrate the real-time acquisition, transmission, processing, analysis and prediction of observation data, and organically integrate the BIM information of the historic building, the construction information of the historic building, the deformation monitoring information of the historic building and a forecasting and early warning mechanism;
step 10: and the numerical simulation analysis module simulates a numerical model of the historic building structure and combines finite element analysis.
Preferably, in step 4, specifically, for determining the BIM model application depth and the data exchange mode at each stage of the historic building engineering, since the RVT format of the Revit complex historic building model cannot be directly analyzed and displayed at the Web platform, a suitable technical route needs to be explored, and the Revit SDK provided by Autodesk company is used to perform secondary development plug-in through the Revit API interface to directly convert the model into the historic building model recognizable and loadable by the WebGL technology for Web end browsing.
Preferably, the method for converting the Revit model from the RVT format to the JSON format file comprises the steps of carrying out Revit software secondary development according to the Revit SDK, converting geometric data and attribute information of the model into JSON format data, wherein the JSON format data exist in a Key Value pair mode and are expressed by using a data structure of an Object, a Key/Value array, a character string and a Boolean Value.
Preferably, the model conversion method based on the Revit API technology is used for carrying out secondary development on a Visual Studio platform by using a C # language to obtain data such as model types, geometric data information, model material types, textures, illumination, colors, model attribute information, model IDs and the like required by JSON formats, and the extracted data is respectively stored into a geometrics key, a materials key, an object key and a metadata key, so that conversion from the RVT format to the JSON format model is realized, and a proper framework is selected for the converted JSON format model to reconstruct and render the model at a Web platform end through a Web technology.
Preferably, in step 8, the BIM application software Autodesk Civil 3D, Revit and the like are specifically adopted to develop a commonly used ancient architectural engineering component family library, establish a BIM template in a design stage, unify data sharing standards among different stages and different software, and explore an application mode of BIM in the integrated project design of the complex ancient architectural engineering.
Preferably, in step 9, a complex historic building engineering monitoring and construction risk module based on the BIM is developed, a model is built for the shape, the building envelope, the surrounding environment and various monitoring points of the historic building, real-time query in the construction process of the historic building is realized, the analysis result is compared with the monitoring data by combining finite element numerical calculation, the development trend of internal force and deformation is predicted in advance, and powerful technical support is provided for successful completion of the deepened design of the historic building engineering.
Preferably, according to the properties of the complex historic building engineering, the monitoring is mainly composed of a deformation monitoring system and a surrounding body stress monitoring system, a digital monitoring module based on three-dimensional simulation complex historic buildings is designed, digital monitoring can be carried out in real time in the construction process, classified display of monitoring items is realized, real-time query of monitoring data is realized, model parameters are corrected through field monitoring, mutual evidence is obtained, necessary guarantee is provided for smooth construction, a digital model is corrected through combination of the monitoring data, and the correctness and the accuracy of the model are guaranteed.
Preferably, the historic building and supporting structure model, the surrounding environment and geological model and the measuring point models of all monitoring projects are created, so that the monitoring data drive model can visually display the monitoring conclusion, the deformation risk points of the historic building project can be intuitively and accurately grasped, and all participants can perform online treatment and offline inspection based on the risk management scheme, thereby saving a great amount of time for analyzing the report forms.
Preferably, a set of executable programs for real-time transmission and monitoring data processing is established through BIM secondary development, and a dynamic spatial database of the building is automatically generated.
Preferably, the step 10 is implemented by a numerical simulation analysis module, which simulates a numerical model of the historic building structure, provides a theoretical basis for the historic building reconstruction design by combining finite element analysis, compares the numerical analysis result with the actual monitoring result, and guides the design and construction by combining inverse analysis and a Web platform.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, through forming the standard and method of the whole-process ancient building protection based on the BIM technology, a BIM model lightweight display method is explored, the construction and monitoring management of the ancient building engineering project is realized, the method is different from the existing mainstream C/S framework, a complex ancient building engineering BIM platform based on the B/S framework is built, the real-time data monitoring of the ancient building is realized, and the powerful technical guarantee is provided for the smooth completion of the ancient building engineering.
Detailed Description
The present invention will now be described in more detail by way of examples, which are given by way of illustration only and are not intended to limit the scope of the present invention in any way.
The invention provides a technical scheme that: a BIM-based building monitoring method comprises the following steps:
step 1: the platform maintenance management module is used for managing and maintaining a platform system, and comprises the management of a platform user account, the management of authority and a module and the recording of a platform operation error log;
step 2: carrying out construction of a target building according to a construction drawing of building construction, and collecting building data of a constructed part on a building construction site in the construction process;
and step 3: building a construction drawing, setting a vertical central axis for a target building according to the built construction drawing, and building a BIM (building information modeling) model of the target building in a computer;
and 4, step 4: the BIM model data management module is used for carrying out Json format data structure conversion on the digital point cloud and the ancient building model generated by the close-range photogrammetry technology;
and 5: the BIM data modeling and analyzing module is used for importing a BIM model and a peripheral field model, displaying the BIM model in a three-dimensional visualization mode at a Web platform end, moving, zooming and sectioning the BIM model in a three-dimensional mode, and inquiring attribute information of model components;
step 6: the construction simulation module is used for compiling a construction progress plan on line, comparing the planned progress with the actual progress, realizing three-dimensional visual construction simulation at the Web platform end, conveniently and intuitively mastering construction progress information, and facilitating construction design and adjusting the engineering progress according to site construction conditions;
and 7: the project cost module is used for comparing and simulating the planned progress and the actual progress, so that the project progress can be displayed more intuitively;
and 8: the safety management module is used for integrating and managing engineering data and storing CAD drawings, construction files, construction drawings and the like of the engineering in the platform;
and step 9: the data monitoring module can realize the access of the real-time data of the novel low-power-consumption sensor based on the Internet of things, and organically integrate the real-time acquisition, transmission, processing, analysis and prediction of observation data, and organically integrate the BIM information of the historic building, the construction information of the historic building, the deformation monitoring information of the historic building and a forecasting and early warning mechanism;
step 10: and the numerical simulation analysis module simulates a numerical model of the historic building structure and combines finite element analysis.
The first embodiment is as follows:
the platform maintenance management module is used for managing and maintaining a platform system, and comprises the management of a platform user account, the management of authority and the module and the recording of a platform operation error log, the construction of a target building is carried out according to a construction drawing of building construction, the construction data of a constructed part is collected at a construction site in the construction process, a building construction drawing is constructed, a vertical central axis is set for the target building according to the constructed construction drawing, a BIM model of the target building is constructed in a computer, the BIM model data management module is used for carrying out Json format data structure conversion on an ancient building model generated by a digital point cloud and close-range photogrammetry technology, a BIM data modeling and analysis module, the BIM model and a peripheral model are imported, the model is used for carrying out three-dimensional visual display at a Web platform end and carrying out moving, zooming and three-dimensional sectioning on the model, the system also comprises a model component attribute information query module, a construction simulation module, an on-line construction progress plan making module, a plan progress and actual progress comparison module, a Web platform end, a safety management module, a construction design module, a project cost module, a data monitoring module, a real-time data access module, an integrated management module, a real-time acquisition, transmission, processing, analysis and prediction module, an ancient building BIM three-dimensional model information module, a data analysis module and a data analysis module, wherein the plan progress and the actual progress comparison module are used for realizing three-dimensional visual construction simulation at the Web platform end, the construction progress information can be conveniently and visually mastered, construction design can be facilitated, project progress can be adjusted according to site construction conditions, the plan progress and the plan progress comparison and simulation can be carried out, project progress can be more visually displayed, the safety management module can integrate the observation data acquisition, the analysis and the analysis of the three-dimensional model information of the ancient building BIM three-dimensional model information module can be realized by the Internet of the ancient building BIM three-dimensional model information module, The method comprises the steps of organically integrating historic building construction information, historic building deformation monitoring information and a forecasting and early warning mechanism, developing a common historic building engineering component family library by a numerical simulation analysis module, simulating a numerical model of a historic building structure, combining finite element analysis, specifically adopting BIM application software Autodesk Civil 3D, Revit and the like in step 8, establishing a BIM template in a design stage, unifying data sharing standards among different stages and different software, exploring an application mode of BIM in the complex historic building engineering integrated project design, specifically adopting the numerical simulation analysis module in step 10, simulating the numerical model of the historic building structure, combining the finite element analysis and the historic building reconstruction design to provide a theoretical basis, comparing a numerical analysis result with an actual monitoring result, and combining inverse analysis and a Web platform to guide design and construction.
Example two:
the platform maintenance management module is used for managing and maintaining a platform system, and comprises the management of a platform user account, the management of authority and the module and the recording of a platform operation error log, the construction of a target building is carried out according to a construction drawing of building construction, the construction data of a constructed part is collected at a construction site in the construction process, a building construction drawing is constructed, a vertical central axis is set for the target building according to the constructed construction drawing, a BIM model of the target building is constructed in a computer, the BIM model data management module is used for carrying out Json format data structure conversion on an ancient building model generated by a digital point cloud and close-range photogrammetry technology, a BIM data modeling and analysis module, the BIM model and a peripheral model are imported, the model is used for carrying out three-dimensional visual display at a Web platform end and carrying out moving, zooming and three-dimensional sectioning on the model, the system also comprises a model component attribute information query module, a construction simulation module, an on-line construction progress plan making module, a plan progress and actual progress comparison module, a Web platform end, a safety management module, a construction design module, a project cost module, a data monitoring module, a real-time data access module, an integrated management module, a real-time acquisition, transmission, processing, analysis and prediction module, an ancient building BIM three-dimensional model information module, a data analysis module and a data analysis module, wherein the plan progress and the actual progress comparison module are used for realizing three-dimensional visual construction simulation at the Web platform end, the construction progress information can be conveniently and visually mastered, construction design can be facilitated, project progress can be adjusted according to site construction conditions, the plan progress and the plan progress comparison and simulation can be carried out, project progress can be more visually displayed, the safety management module can integrate the observation data acquisition, the analysis and the analysis of the three-dimensional model information of the ancient building BIM three-dimensional model information module can be realized by the Internet of the ancient building BIM three-dimensional model information module, The method comprises the steps of organically integrating historic building construction information, historic building deformation monitoring information and a forecasting and early warning mechanism, organically simulating a numerical model of a historic building structure, combining finite element analysis, particularly determining BIM model application depth and a data exchange mode of each stage of the historic building engineering in step 4, searching a proper technical route because the RVT format of a Revit complex historic building model cannot be directly analyzed and displayed at a Web platform end, directly converting the model into a historic building model which can be identified and loaded by a WebGL technology through a Revit API interface by using a Revit SDK provided by Autodesk company for secondary development plug-in, converting the Revit model from the WebGL format to a JSON format file, performing Revit software secondary development according to the Revit SDK, and converting geometric data and attribute information of the model into ON format data, JSON format data exists in a Key Value pair form, Object, Key/Value arrays, character strings and Boolean values are used for representing the data structure, a model conversion method based on Revit API interface technology is used for carrying out secondary development on a Visual Studio platform by using C # language to obtain data such as model types, geometric data information, model material types, textures, illumination, colors, model attribute information, model IDs and the like required by JSON formats, extracted data are respectively stored into a geometry Key, a materials Key, an Object Key and a metadata Key, so that conversion from the RVT format to the JSON format model is realized, and the converted JSON format model selects a proper framework through WebGL technology to reconstruct and render the model at the Web platform end.
Example three:
the platform maintenance management module is used for managing and maintaining a platform system, and comprises the management of a platform user account, the management of authority and the module and the recording of a platform operation error log, the construction of a target building is carried out according to a construction drawing of building construction, the construction data of a constructed part is collected at a construction site in the construction process, a building construction drawing is constructed, a vertical central axis is set for the target building according to the constructed construction drawing, a BIM model of the target building is constructed in a computer, the BIM model data management module is used for carrying out Json format data structure conversion on an ancient building model generated by a digital point cloud and close-range photogrammetry technology, a BIM data modeling and analysis module, the BIM model and a peripheral model are imported, the model is used for carrying out three-dimensional visual display at a Web platform end and carrying out moving, zooming and three-dimensional sectioning on the model, the system also comprises a model component attribute information query module, a construction simulation module, an on-line construction progress plan making module, a plan progress and actual progress comparison module, a Web platform end, a safety management module, a construction design module, a project cost module, a data monitoring module, a real-time data access module, an integrated management module, a real-time acquisition, transmission, processing, analysis and prediction module, an ancient building BIM three-dimensional model information module, a data analysis module and a data analysis module, wherein the plan progress and the actual progress comparison module are used for realizing three-dimensional visual construction simulation at the Web platform end, the construction progress information can be conveniently and visually mastered, construction design can be facilitated, project progress can be adjusted according to site construction conditions, the plan progress and the plan progress comparison and simulation can be carried out, project progress can be more visually displayed, the safety management module can integrate the observation data acquisition, the analysis and the analysis of the three-dimensional model information of the ancient building BIM three-dimensional model information module can be realized by the Internet of the ancient building BIM three-dimensional model information module, The method comprises the steps of organically integrating historic building construction information, historic building deformation monitoring information and a forecasting and early warning mechanism, developing a common historic building engineering component family library by a numerical simulation analysis module and simulating a numerical model of a historic building structure by combining finite element analysis, specifically adopting BIM application software Autodesk Civil 3D, Revit and the like in step 8, establishing a BIM template in a design stage, unifying data sharing standards among different stages and different software, and exploring an application mode of BIM in the integrated project design of the complex historic building engineering.
Example four:
the platform maintenance management module is used for managing and maintaining a platform system, and comprises the management of a platform user account, the management of authority and the module and the recording of a platform operation error log, the construction of a target building is carried out according to a construction drawing of building construction, the construction data of a constructed part is collected at a construction site in the construction process, a building construction drawing is constructed, a vertical central axis is set for the target building according to the constructed construction drawing, a BIM model of the target building is constructed in a computer, the BIM model data management module is used for carrying out Json format data structure conversion on an ancient building model generated by a digital point cloud and close-range photogrammetry technology, a BIM data modeling and analysis module, the BIM model and a peripheral model are imported, the model is used for carrying out three-dimensional visual display at a Web platform end and carrying out moving, zooming and three-dimensional sectioning on the model, the system also comprises a model component attribute information query module, a construction simulation module, an on-line construction progress plan making module, a plan progress and actual progress comparison module, a Web platform end, a safety management module, a construction design module, a project cost module, a data monitoring module, a real-time data access module, an integrated management module, a real-time acquisition, transmission, processing, analysis and prediction module, an ancient building BIM three-dimensional model information module, a data analysis module and a data analysis module, wherein the plan progress and the actual progress comparison module are used for realizing three-dimensional visual construction simulation at the Web platform end, the construction progress information can be conveniently and visually mastered, construction design can be facilitated, project progress can be adjusted according to site construction conditions, the plan progress and the plan progress comparison and simulation can be carried out, project progress can be more visually displayed, the safety management module can integrate the observation data acquisition, the analysis and the analysis of the three-dimensional model information of the ancient building BIM three-dimensional model information module can be realized by the Internet of the ancient building BIM three-dimensional model information module, The method comprises the steps of organically integrating historic building construction information, historic building deformation monitoring information and a forecasting and early warning mechanism, establishing a model of the shape, the enclosing structure, the surrounding environment and various monitoring points of the historic building by a numerical simulation analysis module and simulating a numerical model of the historic building structure in combination with finite element analysis, particularly developing a BIM-based complex historic building engineering monitoring and construction risk module in step 9, realizing real-time query in the construction process of the historic building, comparing an analysis result with monitoring data in combination with finite element numerical calculation, predicting the internal force and deformation development trend in advance, providing powerful technical support for successfully completing the deepening design of the historic building engineering, wherein the monitoring mainly comprises a deformation monitoring system and an enclosing body stress monitoring system according to the properties of the complex historic building, and designing a digital monitoring module based on three-dimensional simulated complex historic buildings, can carry out digital monitoring in real time in the construction process, realize the classified display of monitoring items, the real-time inquiry of monitoring data, the on-site monitoring and correction of model parameters, which are mutual evidences, provide necessary guarantee for the smooth construction, and correct the digital model by combining the monitoring data, ensure the correctness and the accuracy of the model, by creating the historic building and supporting structure model, the surrounding environment and geological model and the measuring point models of all monitoring projects, the monitoring data can drive the model to visually display the monitoring conclusion, visually and accurately grasp the deformation risk points of the historic building engineering, and allow all participants to perform online treatment and offline inspection based on a risk management scheme, therefore, time for analyzing a large number of reports is saved, a set of executable programs for transmitting and processing monitoring data in real time is established through BIM secondary development, and a dynamic spatial database of the building is automatically generated.
To sum up: the building monitoring method based on the BIM explores a method for displaying the lightweight of the BIM model by forming the standard and the method of the whole-process ancient building protection based on the BIM technology, realizes the construction and the monitoring management of the ancient building engineering project, is different from the C/S framework of the current mainstream, builds a complex ancient building engineering BIM platform based on the B/S framework, realizes the real-time data monitoring of the ancient building, provides powerful technical support for the smooth completion of the ancient building engineering, solves the problems that the BIM can not provide support for the whole life cycle management of the engineering project, can not be different from the C/S framework of the current mainstream, and can not monitor a large amount of quantity in time.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A building monitoring method based on BIM is characterized in that: the method comprises the following steps:
step 1: the platform maintenance management module is used for managing and maintaining a platform system, and comprises the management of a platform user account, the management of authority and a module and the recording of a platform operation error log;
step 2: carrying out construction of a target building according to a construction drawing of building construction, and collecting building data of a constructed part on a building construction site in the construction process;
and step 3: building a construction drawing, setting a vertical central axis for a target building according to the built construction drawing, and building a BIM (building information modeling) model of the target building in a computer;
and 4, step 4: the BIM model data management module is used for carrying out Json format data structure conversion on the digital point cloud and the ancient building model generated by the close-range photogrammetry technology;
and 5: the BIM data modeling and analyzing module is used for importing a BIM model and a peripheral field model, displaying the BIM model in a three-dimensional visualization mode at a Web platform end, moving, zooming and sectioning the BIM model in a three-dimensional mode, and inquiring attribute information of model components;
step 6: the construction simulation module is used for compiling a construction progress plan on line, comparing the planned progress with the actual progress, realizing three-dimensional visual construction simulation at the Web platform end, conveniently and intuitively mastering construction progress information, and facilitating construction design and adjusting the engineering progress according to site construction conditions;
and 7: the project cost module is used for comparing and simulating the planned progress and the actual progress, so that the project progress can be displayed more intuitively;
and 8: the safety management module is used for integrating and managing engineering data and storing CAD drawings, construction files, construction drawings and the like of the engineering in the platform;
and step 9: the data monitoring module can realize the access of the real-time data of the novel low-power-consumption sensor based on the Internet of things, and organically integrate the real-time acquisition, transmission, processing, analysis and prediction of observation data, and organically integrate the BIM information of the historic building, the construction information of the historic building, the deformation monitoring information of the historic building and a forecasting and early warning mechanism;
step 10: and the numerical simulation analysis module simulates a numerical model of the historic building structure and combines finite element analysis.
2. The BIM-based building monitoring method of claim 1, wherein: in the step 4, specifically, for determining the BIM model application depth and the data exchange mode at each stage of the historic building engineering, since the RVT format of the Revit complex historic building model cannot be directly analyzed and displayed at the Web platform end, a proper technical route needs to be explored, and the Revit SDK provided by Autodesk company is used for carrying out secondary development plug-in through the Revit API interface to directly convert the model into the historic building model which can be identified and loaded by the WebGL technology for Web end browsing.
3. The BIM-based building monitoring method of claim 2, wherein: according to the method for converting the Revit model from the RVT format to the JSON format file, Revit software secondary development is carried out according to a Revit SDK, geometric data and attribute information of the model are converted into JSON format data, the JSON format data exist in a Key Value pair mode, and are expressed by using data structures of an Object, a Key/Value array, a character string and a Boolean Value.
4. The BIM-based building monitoring method of claim 2, wherein: the model conversion method based on the Revit API technology is characterized in that C # language is used for secondary development on a Visual Studio platform to obtain data such as model types, geometric data information, model material types, textures, illumination, colors, model attribute information and model IDs (identification) required by JSON (java script object) formats, extracted data are respectively stored into a geometrics key, a materials key, an object key and a metadata key, so that conversion from RVT (relevance vector transform) formats to JSON format models is realized, and the converted JSON format models are reconstructed and rendered at a Web platform end by selecting proper frames through WebGL technology.
5. The BIM-based building monitoring method of claim 1, wherein: specifically, in step 8, BIM application software Autodesk Civil 3D, Revit and the like are adopted, a common ancient building engineering component family library is developed, a BIM template in a design stage is established, data sharing standards among different stages and different software are unified, and an application mode of BIM in the design of a complex ancient building engineering integrated project is explored.
6. The BIM-based building monitoring method of claim 1, wherein: in step 9, a complex historic building engineering monitoring and construction risk module based on BIM is developed, a model is built for the shape, the building envelope, the surrounding environment and various monitoring points of the historic building, real-time query in the construction process of the historic building is realized, the analysis result is compared with the monitoring data by combining finite element numerical calculation, the development trend of internal force and deformation is predicted in advance, and powerful technical support is provided for successful completion of the deepened design of the historic building engineering.
7. The BIM-based building monitoring method of claim 6, wherein: according to the nature of the complex historic building engineering, the monitoring is mainly composed of a deformation monitoring system and a surrounding body stress monitoring system, a digital monitoring module based on three-dimensional simulation complex historic buildings is designed, digital monitoring can be carried out in real time in the construction process, classified display of monitoring items is realized, real-time inquiry of monitoring data is realized, model parameters are corrected through field monitoring, mutual proofreading is realized, necessary guarantee is provided for smooth construction, a digital model is corrected through combination of the monitoring data, and the correctness and the accuracy of the model are guaranteed.
8. The BIM-based building monitoring method of claim 6, wherein: by creating the historic building and supporting structure model, the surrounding environment and geological model and the measuring point models of all monitoring projects, the monitoring data can drive the models to visually display monitoring conclusions, the deformation risk points of the historic building project can be visually and accurately grasped, all participants can perform online treatment and offline inspection based on a risk management scheme, and accordingly time for analyzing reports in large quantities is saved.
9. The BIM-based building monitoring method of claim 6, wherein: and establishing a set of executable programs for transmitting and processing monitoring data in real time through BIM secondary development, and automatically generating a dynamic space database of the building.
10. The BIM-based building monitoring method of claim 1, wherein: the step 10 is a numerical simulation analysis module which simulates a numerical model of an ancient building structure, provides a theoretical basis for ancient building reconstruction design by combining finite element analysis, compares a numerical analysis result with an actual monitoring result, and guides design and construction by combining inverse analysis and a Web platform.
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