Theory And Application Of Digital Building Construction System Based On Plan And Control

The tide of Information Technology (IT) revolution impulses every aspect of industries, driving the social process in the irreversible track. Under such circumstances, the IT application has been the trend to the innovation of traditional construction industry in both technology and management, and complied with the requirement of the national macroscopical policies for developing the pillar industry. The furious competition has accelerated the polarization of the construction companies. The competitive enterprises bring forward more advanced requirements for the IT in this industry. On the other hand, a clear theoretical system like the CIMS in the manufacture industry, hasn't been developed in the construction industry. In terms of the above background, the idea of constructing a digital building construction system (DBCS) has been proposed on the basis of the engineering projects practice, with the reference to the advanced production mode of the manufacture industry, and both theory frame and technological system have been developed during the process of planning, controlling to explore the methodology for both reforming and improving the traditional construction industry by digital technologies. The author has also proposed the concept of the modern advanced construction production system organized by DBCS, construction industrialization and sustainable development.This paper has focused on the organization and application of DBCS, and constructed an integrated system of multi-dimensional digital construction technologies for both the production and management of the construction engineering linking to the process of abstraction, transmission, interpretation and implementation of information flow of digital construction. Its key technology is virtual construction for the plan, project information management system for information interpretation and automatic process control. As for the key supporting technologies of DBSC, both the development and application of each one have been discussed in detail that the organization of DBSC has been outlined clearly. DBSC is a multi-hierarchical and ascending complicated technological system, which includes the application of both single digital technology and multiple integrated composite technologies. Based on the present technological development, the author has proposed both the model and methods for constructing the integrated system of DBCS. The integrated system in this paper includes construction design system focused on VR technology, construction management system focused on PMIS, andconstruction operation system focused on automatic control technology, by which these can be put into practice of industrialization, automation and intelligentize of construction production, and scientific and efficient construction management and decision-making. Constructing DBCS isn't unfeasible, and its process of both technological development and application have been discussed in detail combined with four projects applying the digital technologies participated in by the author in person in the Third Bureau of CSCEC, focusing respectively on virtual construction, structure formulation, PMIS and computer automatization process control. Based on the above, the paper has also constructed the integrated system of DBCS for steel structure construction. All of these have formed the practice basis for system theory of DBCS.It is a new way to construct DBCS. Its implementation will reform and affect completely traditional construction production by all means, from which the impact has been discussed in turn from the view of technology, project management, organization, culture notion, company management, construction market etc. For the technology, the implementation of DBCS not only improves the quality and accelerates the process but also causes the change of construction mode, such as the introduction of concurrent engineering, lean construction, agile construction etc. for the project management and organization, the implementation of DBCS will introduce BPR and...