The Apply of Using Building Information Modeling to Present Material Takeoff Method : Case Study Educational Building

Abstract

The objectives of this study were as follows: 1.) To study material planning by doing a Bar-Cut List and not making a Bar-Cut List how much the difference is. 2.) To be a model for quantitative determination through work with Autodesk Revit (Free Software for Students & Educators Revit Autodesk) 3.) To check the accuracy and completeness of the material quantity obtained by modeling the information.

            The tools used in this project study focus on Building Information Modeling (BIM) and using Autodesk Revit (Free Software for Students & Educators Revit Autodesk) as a tool to create model learning center buildings of the Rajamangala University of Technology Rattanakosin. After that, the material quantity was analyzed from the program according to the principle of quantitative work for estimating the construction cost of Thailand. The organizers wanted to know the numerical accuracy and the maximum benefit of the program aligned with learning and develop a rebar cutting pattern to reduce the remnant of iron. By using a cutting size of materials in construction planning (Bar-Cut List) in the construction project to suit the style of use and contributed to the highest efficiency with the least amount from remnants of iron left. Since rebar was an important material in construction projects, it is used in many structural parts and had a high price. The effective use of rebar could reduce the cost of construction projects without wasted on large quantities of remnants of iron.

            The results of the study were able to compare the building with the Bar-Cut List and not the Bar-Cut List, it allowed to know the planning of cutting materials in this construction and used for cutting rebar and structural steel as well as efficient material and waste management to decreased the waste in the process of determining the quantity of reinforced concrete. It was found that the building information system could be better than the previous system, both in terms of quantities take-off that can reduce the rebar quantity up to 17%, convenience, adaptation and could be applied to other parts whether it was the planning process. Furthermore, it could display the results of the steps as a 3D image of the building which could be easy to comprehend.