Study On The Informatization Integration Of Construction Project

The construction industry is an important traditional industry, which keeps a high level output and pulls the rapid growth of China’s macroeconomic. The total and incremental value of construction industry will achieve the targets more than15%average annual growth rate during the12th five-year plan period and the pillar position of which in the national economy will be constantly enhanced. With the extensive application of information technology in the construction industry, the funnel effect on the process of information transmission and the phenomenon of information island, which has became the bottleneck seriously restricting the performance improvement of China’s construction industry. Informatization is an important way to transform the production mode of traditional industry and realize great-leap-forward development of the construction industry as well as the only way to realize the industrialization of the construction industry. Therefore, study on the informatization integration of construction proj ect has important theoretical and practical significance.In this thesis, the information integration of each construction phase is analyzed based on the whole life-cycle theory of construction project. The information presentation and information integration method of construction project based on IFC are studied, and the IFC file structure is obtained by analyzing IFC instance file. The prototype system is developed based on the open source BIMServer platform for the secondary development. The mode of system integration in the construction industry is established based on the third-party platform. The main contents of this thesis are as follows:(1) There are four aspects to explore the integrated management of construction project, which are the multi-disciplinary integration, the whole life-cycle integration, the stakeholders integration and the management objectives integration. The characteristics of the computer integrated construction(CIC) is elaborated. The information integration in the design phase, construction phase, operation phase are analyzed based on the whole life-cycle theory, and put forward the information integration technology of construction project.(2) The IfcObject, IfcRelationship and IfcPropertyDefinition in the IFC standard are analyzed. The expression on construction project information and the information combination of attribute set are elaborated. The modeling approach for construction project information is developed. The IFC file structure is obtained by analyzing the IFC file instance.(3) The system requirements of information integration platform are analyzed. The system module, use case diagram and sequence diagram are given. In a particular system implementation, it is based on the open source BIMServer platform and MySQL database to make secondary development for the prototype system.(4) There are three typical organization modes of system integration being analyzed. The comparison on the point-to-point single system integration, the single-node system to project information portal(PIP) system integration, the third-party platform-based system integration are researched. The service-oriented architecture(SOA) based pattern for system integration in the construction industry is put forward.(5) The Web Services which is the key technology of SOA is analyzed. The step of system integration is given, including Web Services implementation in the server-side, developing method on calling program of the external client system, Web Services invocation. At last, the Web Services client program is developed using Java and CXF and the information retrieval from the model is realized by empirical study for the extraction information from building model.The achievements of this research can provide a solution to realize information integration and unified management for construction project, and also provide a theoretical methods and technical guidance for guiding the system integration in the construction industry.