Abstract
In the present, Japan is facing issues of decreasing birthrate, increasing in elderly population and stagnation in labor productivity inside construction industry. Ministry of Land, Infrastructure, Transportation and Tourism (MLIT) has introduced CIM and i-Construction on 2012 and 2015 respectively as solutions for the current issues.
The goal of CIM is to broaden the productivity in various fields through life cycle of construction. i-Construction also shares similar goal with focus on earthwork construction. While MLIT is proceeding with various trial projects; inspections on data construction of 3D models and level of detail of the model form in transferring to the next top have not been implemented.
In this study, by using steel superstructure with many parts with CIM concept serves as the case study, the authors propose efficient method in constructing 3D model of the structure. Furthermore, at the time of building 3D model, accuracy of 3D model can be ensured, and effects on project efficiency in consideration to conventional 2D design are verified.
