AUTOMATED CONSTRUCTION LAYOUT AND SIMULATION OF CONCRETE FORMWORK SYSTEMS USING BUILDING INFORMATION MODELING
The drafting of formwork systems for concrete structures is one of the most complex tasks in the formwork construction than the design and selection of the formwork systems. The 2D Computer-Aided Design and Drafting (CADD) is the most commonly used tool for drafting, however custom made programs such as ELPOS, ForCAD and Tipos 7.0 was used later as separate software or add-ins to the 2D CADD software so as to reduce the amount of time and complexity in drafting the formwork systems. However this technique suffers seriously on the fact that it could not incorporate the actual site characteristics such as the building shape, alignment of the formwork and construction sequence of the formwork, which is the detrimental factors in the formwork construction, thus the sophisticated 3D CADD is preferred. Moreover the 3D CADD is efficient in providing an optimum solution but it is not impartable, that is the changes made on it could not be altered easily so as to coordinate with other construction personnel involved in the project. Thus, there arises a need for an intriguing tool for enhancing the parametric change characteristics besides the perfect layout of the system. The Building Information Modeling (BIM) is one such techniques that is adopted in this research to overcome the shortcoming of the 3D CADD. This research comprises of creating 3D BIM of the high-rise building (21 storey) and converting it into a wireframe model and set as reference for the impartibility of the already created 3D BIM family files of the concrete formwork systems to perform the parametric change characteristics of the 3D BIM formwork family files so as to verify the automated construction layout and simulation characteristics. A detailed exploration of the 4D time scheduling and 5D cost are also investigated for the profitability of the formwork construction.