Design and Implementation of Quantity Calculation Method Based on BIM Data

Manual quantity takeoff using two-dimensional (2D) drawings and personal knowledge is error-prone time-consuming. Theoretically, can be automatically calculated from building information model more quickly reliably by extracting geometric data semantic attributes of elements. Specific construction classification systems embedded in mainstream modeling software for (BIM) make it difficult countries adopting different to calculate directly. This paper proposes a BIM-based code mapping (BQTCM) method solve the above issue, develops plug-in (QTCMP) on BIM based proposed BQTCM obtain an accurate bill quantities directly efficiently. Moreover, conducting statistical analysis examining case study, this verifies accuracy efficiency attained QTCMP.