الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Formwork design and construction for reinforced concrete buildings has a significant impact on both construction time and cost. Various types of formworks are available in the market for construction of cast-in-place concrete structures. As such, decision making on the optimal formwork system is difficult and time-consuming for designers or planners particularly for high-rise buildings. where any reduction in the cost of single-story formwork significantly decreases total construction cost. Formworks must be designed effectively as numerous accidents have happened as a result of poor design decisions made by engineers. It is necessary to automate and optimize formworks’ design process. This research presents an integrated BIM-GA model to automate the formwork visualization, design and optimization using C# with Revit API as a BIM environment to establish the proposed BIM-GA Application. Genetic Algorithm optimization model established in BIM environment to select the optimal formwork system among three systems that widely used in the market. Market data on formwork components, systems, and pricing for many formwork manufacturers are gathered for this purpose. Data are precisely extracted from a 3D structural model in Revit software and used to optimize formwork design based on available formwork components and prices. BIM repository of 3D formwork components family’s library was created specifically for this purpose. The results indicate that the props system is the least expensive and easiest to construct, however it is limited to story heights up to 4.5m only. The optimized solution for any formwork system thereafter would be modelled automatically in BIM environment to easily obtain the quantity schedules and drawings. According to the findings of the case study, the usage of the recommended design methodology will greatly improve the efficiency of the formwork design process and minimize construction costs.