ANALYSIS OF THE INFORMATION NEEDS FOR EXISTING BUILDINGS FOR INTEGRATION IN MODERN BIM-BASED BUILDING INFORMATION MANAGEMENT

The challenge is to decide how to design a building information model (BIM) to support building maintenance and development for existing buildings. Until now the main BIM focus has been related to new projects, and this study focus on different challenges when deciding to use BIM for both new and existing buildings. This paper is based on studies together with regional and hospital authorities, but should be relevant for other types of existing buildings as well. The primary objectives of these studies are to implement requirements for fire safety, universal design, environmental regulations, status of maintenances, occupancy, daily operations, rebuilding, mechanical, electrical, and plumbing installations (MEP) and effective use of energy and space within the BIM model. Additionally, these studies consider what BIM competence is required and by whom. It must also be decided which information is necessary for operating different types of building, and which information must be kept up to date. Successful BIM adoption needs a good implementation strategy, professional guidelines and motivated people in the organisation. This paper explains important options and decisions necessary to establish a BIM for management of existing buildings. Central questions concern the need for competence at different levels in the building owner organisations. At the same time the paper considers how the organisational structures may need to be adjusted.