On Site BIM Model Use to Integrate 4D/5D Activities and Construction Works: A case study on a Brazilian low income house enterprise

摘要

This paper presents a practical application of integrating an integrated model (BIM) with scheduling and cost planning. It also describes the steps undertaken to plan and re-plan a project, at each new decision taken by the multidisciplinary team. The study was conducted during the development of a low income housing enterprise nearby the city of Curitiba in Brazil. The undertaken application demonstrates how to extract information from the BIM model for uses to production planning and control on site construction. Throughout the work breakdown structure and the unit costs for bill of materials, the model can be integrated with planning and helps the execution phase as well. With 4D/5D simulation, the information and decision of design phase was taken to the construction site. The results show some decisions and uses of the integrated model on the design phase and production planning and control on construction site. Some difficulties experienced by the development team are also reported. The main conclusions of this study confirm the advantages and disadvantages of using 4D/5D BIM modeling found in the literature, such as supporting lean construction principles on production.