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Entramado
versión impresa ISSN 1900-3803versión On-line ISSN 2539-0279
Resumen
CASTANEDA-PARRA, Karen Milady; SANCHEZ-RIVERA, Omar Giovanny y PORRAS-DIAZ, Hernán. Cash flow planning of construction projects based on BIM and system dynamics. Entramado [online]. 2021, vol.17, n.1, pp.272-288. Epub 05-Mayo-2021. ISSN 1900-3803. https://doi.org/10.18041/1900-3803/entramado.1.6305.
Cash flow planning of a construction project is a crucial activity to guarantee the financial resources necessary for construction activities development. Due to the importance, there is a need for cash flow analysis methodologies that are easy to adapt to modifications and involve high levels of detail, which allow improving precision in estimations and anticipating possible problematic events. Considering this need, this paper proposes a new methodological scheme for cash flow planning of construction projects, which is based on construction process models BIM 5D (Building Information Modeling 5D), and system dynamics. The proposed scheme consists of six main stages: 1) BIM 3D model and quantities, 2) work breakdown structure, 3) cost estimation, 4) BIM 5D digital modeling and simulation, 5) cash flow analysis, and 6) implementation. The application of the proposed scheme indicates that the speed, visualization, and automation, with which the cash flow planning is developed, favors the analysis of several alternatives, which strengthens decision-making processes, and improves planning results.
Palabras clave : Cash flow; construction; planning; Building Information Modeling; system dynamics.