Research On Cloud Computing Based BIM Data Integration And Management

The building information modeling/model(BIM)technology,as one of the research hotspots,aims to exchange and share information among multi-stakeholders during different phases of building lifecycle through utilizing a 3d enriched model with various types of engineering information o f a construction project.The BIM technology,known as another technological revolution after CAD technology,has developed rapidly in the past decade,and been driving a series of technical management innovation in the construction industry.However at present,the integration,sharing and management of information among different stakeholders throughout the whole lifecycle haven’t been fully implemented,due to the dispersed organization of the industry and the immaturity of BIM software,standards and te chnology.It is difficult to realize the value of applying BIM integrally,which hindered the development and further application of BIM.To address the above-mentioned problems,based on the investigation of researches and applications of BIM technology a nd the international standard IFC(Industry Foundation Classes),this research provides a set of solutions for the building lifecycle-oriented BIM data integration and management and related theories,methods,techniques,as well as a support platform with the combined application of cloud computing technology.Firstly,this research studies the adoption of cloud computing technology in BIM applications based on analyzing the characteristics of information exchange,and builds a cloud-based distributed architecture for BIM data integration and management.Then,a series methods and technologies including key technology of enhancing data interoperability in multi-stakeholder collaboration,distributed BIM data management method,model entity-based BIM integration method and service-oriented BIM data utilization technology are proposed.Based on these key technologies and methods,a cloud-based distributed BIM data integration and management platform is developed.The platform consists of three service modules and five reusable service components,supporting the participants to build,store,manage and use BIM data in accordance with their own requirements in a distributive manner,and to transfer and share BIM data through the platform,while ensuring the consistency and logical integration of the distributed data.Finally,all the proposed methods,technologies and platform are tested using real engineering data from a practical project.Test results show that the research results can help project participants to transfer and share data in a cloud-based distributed environment through requirement-driven data inter-operation,and support the ownership and consistency management of distributed BIM data.In summary,this research explores a set of feasible theories,methods and technologies for lifecycle-oriented multi-stakeholder collaborative BIM application,and it is of important theoretic significance and broad prospects for further improving BIM technologies and their applications.