Title A Study on the Effective Calculation of Rebar QTO in the Early Design Phase through the Application of BIM Model
Authors Lee, Jae-Cheol
DOI https://doi.org/10.5659/JAIK_SC.2019.35.5.145
Page pp.145-152
ISSN 1226-9107
Keywords BIM ; Parameter ; Early Design Phase ; RC ; Rebar QTO(Quantity Take-Off)
Abstract In this study, rebar QTO(Quantity Take-Off) was quickly produced from the BIM model prepared by Revit in the early design phase, and the available premium rates were quantitatively presented. For this purpose, the amount of rebar calculated using the BuilderHub, which specializes in calculating rebar QTO, was analyzed according to various factors such as member type, rebar diameter, building size, item type, and order length, and the effect of each factor on the rebar QTO was determined. In addition, the BIM model generated on Revit was used to establish parameters and processes required to produce rebar QTO, and proposed a rebar premium rate and a stirrup/hoop premium rate based on the BuilderHub output results. Through this study, it is expected that a rapid and efficient comparative evaluation of rebar QTO will be possible according to various structural design alternatives in the early design phase.