Because of ongoing problems of compatibility of engineering drawings and a lower time limit for increasingly complex projects, the BIM (Building Information Modeling) Area was created at GyM S.A. two years ago. The main objectives of this area were to make the clash detection, assure engineering compatibility, generate a 3D model with information from the components that form part of the project, and automatically obtain material quantities estimates. During this last year, BIM Area has worked very close to the Estimating Department in order to compare their results of the quantities obtained by the BIM Area through a 3D model, with the ones obtained manually through 2D drawings by the Estimating Department. Also to help approve the modeling criteria that allows the consideration of the construction process and its subsequent use in field work. The results throughout this teamwork experience have shown that it is feasible to obtain better results from an early stage in less time and to a higher degree than with our traditional procedure. Demonstrate the positive impact of the application of BIM within the construction stage in our projects to the project managers will be the next challenge.
Budgeting, BIM, estimating, quantity take off, collaborative work, workflow, 3D model, sponsor, standardization, comparison, integration.
Taboada, J. A. & Garrido-Lecca, A. 2014, 'Case Study on the Use of BIM at the Bidding Stage of a Building Project' In:, Kalsaas, B. T., Koskela, L. & Saurin, T. A., 22nd Annual Conference of the International Group for Lean Construction. Oslo, Norway, 25-27 Jun 2014. pp 1473-1482