Abstract
In off-site construction, production of fabrication drawings has a very important impact on productivity. Documentation using 3D model is one of the great advantages of using BIM. Despite the importance of documentation based on 3D model, productivity analysis studies compared to traditional 2D-drawing-based documentation method are difficult to find in existing studies. In addition, empirical research on the effects of recycling 3D model and libraries information is hard to find. The purpose of this study is to analyze the productivity of documentation using 3D model in the fabrication phase. First, productivity data for the 2D-drawing-based documentation method and 3D-model-based documentation method for steel frame prefabrication of EPC project were acquired for each module. Second, additional time for tasks—such as 3D modeling and document review—were investigated to conduct the comparative analysis on the productivity of the two documentation methods. The results quantitatively show the productivity of 3D-model-based documentation and the learning effect of recycling 3D libraries.
Highlights
The Shaping the Future of Construction—A Breakthrough in Mindset & Technology, jointly published by the World Economic Forum and the Boston Consulting Group, reports the impact of integrated building information modeling (BIM) on the future construction market is enormous [1].most of the advanced project delivery methods such as construction management (CM) at risk, pre-construction services (Precon), and integrated project delivery (IPD)—which are being piloted in the domestic construction market—use BIM as a core technology
Most of the advanced project delivery methods such as construction management (CM) at risk, pre-construction services (Precon), and integrated project delivery (IPD)—which are being piloted in the domestic construction market—use BIM as a core technology
This study compared the productivity of documentation methods using 3D models with the documentation methods using 2D drawings
Summary
The Shaping the Future of Construction—A Breakthrough in Mindset & Technology, jointly published by the World Economic Forum and the Boston Consulting Group, reports the impact of integrated building information modeling (BIM) on the future construction market is enormous [1]. Most of the advanced project delivery methods such as construction management (CM) at risk, pre-construction services (Precon), and integrated project delivery (IPD)—which are being piloted in the domestic construction market—use BIM as a core technology. In Korea, Ministry of Land, Infrastructure and Transport have recently announced the “smart construction technology roadmap” to innovate construction productivity and enhance safety [3]. This roadmap aims to automate design based on BIM. At the design stage, Despite the results of previous studies on productivity improvement based on 3D model, 2D-drawing-based documentation method is still commonly used due to high
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