Automat Bill of Quantities for School Buildings Projects Using BIM

Abstract

The Bill of Quantities (B.O.Q.) is a crucial document in construction projects, analyzing materials, labor, and expenses. Traditional methods involve manual measurement and interpretation, while 3D Building Information Modeling (BIM) offers a novel technique. This research compares the accuracy, efficiency, and industry implications of traditional and 3D BIM methods for estimating B.O.Q., highlighting the labor-intensive and error-prone nature of the conventional method. The second section introduces 3D BIM, which offers a virtual project representation, seamlessly integrating geometry, material data, and quantities to automate measurement and reduce errors. To provide empirical evidence, the paper includes a case study comparing estimated quantities by the (traditional method Tender), BIM, and site) in an actual construction project. The case study analyzes the project’s accuracy, consistency, and overall impact. The results showed the accuracy of BIM vs. as-Tender (83.911) and the accuracy of BIM vs. as-Actual (93.059), which is more than the accuracy of Tender vs. as-Actual (65.512).

Keywords

• Automation Bill of Quantities
• Building Information Modelling
• School Building Projects
• Traditional Bill of Quantities
• 3D BIM