Analysis of the Implementation of Bim Based Quantity Take Off on High-Level Building Structure Working with Relative Important Index

Abstract

The percentage of the cost of structural works for residential buildings for the lower middle class is 37% of the total construction cost. Traditional quantity take-off takes time, low accuracy and create miscalculation, automatic take-off using BIM base Quantity take-off is a solution to help prepare cost estimation. Relative importance index analysis allows identifying most of the important criteria based on participants' replies and it is also an appropriate tool to prioritise indicators rated on Likert type scales. From the results of statistical analysts using the RII method obtained factors that are very influential in the application of BIM Based Quantity Take Off in High-rise Residential Building Structures, as for the influencing factors are Tender Drawings, 5D Modeling, Operator Experience, Software Types, Design Complexity, Individual Model Selection, Quantity Take Off, Calculation Process and Cost Data Base