BIM Implementation in Quantity Take off Case Study: Tokyo Riverside Tower B Apartment Project, PIK2, Indonesia

Abstract

One of the problems that are often encountered in projects, one of which is the procurement of materials that are not right with their needs. Building Information Modeling (BIM) method may overcome these problems. BIM is a method of processing simulations from the construction phase into a digital form that contains each part of the work in detail. To find out the difference between conventional quantity take-off calculation and BIM-based calculation, a case study was conducted in Tokyo Riverside Tower 8 PIK 2 Apartment Project. In this research, the quantity of materials is calculated manually from the conventional 2-D shop drawing. The 2-D shop drawing then is remodelled to 3-D drawing using a BIM software to obtain the results of the column material Quantity Take-off. Based on the research findings, there was a no significant difference in quantity of concrete and formwork materials, each of which was a difference of 0.001% for concrete and 0% for formwork. However, for reinforcing material, there is a considerable difference, namely 11% or 242.193,90 kg where BIM calculation is less than manual calculation.