BIM multitask project manager: : responsibility, organization and interoperability

Building Information Modelling (BIM) methodology has been supporting the construction activity in all sectors involved: multidisciplinary designs development; construction planning and monitoring; building management and maintenance. A BIM environment aggregates several specialties and related professionals and in order to control and improve the quality of a BIM project, a BIM manager is required. The BIM manager has the responsibility to coordinate all tasks involved in a building design and in the associated activities that are usually workout over the project documents. A BIM platform can be considered as a useful resource for multidisciplinary coordination, extending the BIM 3D modelling scope into the construction planning and after, in the operation and maintenance stages. A BIM manager is then required: to incentive the collaboration at work and to control responsibility given to each professional involved; to guaranty the correction of the amount and quality of the information, included in each BIM model step, and transferred between tasks; to coordinate all designs and the distinct mandatory activities (conflict detection, cost estimation or energetic simulation). The topic of the present study is illustrated with three building cases were distinct specific projects, disciplines and tasks were developed: structural analyses and reinforcement details; quantity take-off of materials and cost estimation; construction scheduling and simulation. The study presents the relevance of a correct coordination within the development of building projects. Although there are limitations in the implementation of BIM methodology in all sectors or activities within the construction industry, BIM has been bringing an important improvement in the quality of a building design, reflected in the quality of the final product. BIM methodology is a current demand in the construction industry supported on advanced technology and in an adequate management of projects.