2017年1月1日 · Building Information Modeling (BIM) software has allowed the industry to begin to move toward BIM-based quantity take-off (QTO) and estimating [1]. Autodesk Revit, Bentley, Vico, Assemble and Autodesk Navisworks are just a few of the programs allowing the industry to shift toward BIM-based QTO and estimates.

2014年12月6日 · In this chapter, we propose an Open BIM-based QTO process and suggest a method of modeling for schematic estimation. The QTO process is comprised of four steps: BIM modeling, physical quality verification, property verification and quantity take-off. BIM modeling uses BIM authoring tools that support the IFC format.

2022年1月27日 · Findings Four major challenges for BIM-based QTO discovered: new types of information required for the BIM model, changes and updates as projects progress, low interoperability between...

2018年9月20日 · Cost estimation in the construction industry is generally done by performing a quantity take-off (QTO) based on the available information within the current project phase. Estimators review blueprints and additional requirements to calculate the quantities of the construction work.

2024年4月25日 · Other Quantity Takeoff Methods: Building Information Modeling (BIM) Considered a subset of the digital QTO method, BIM delivers the most accurate and efficient technology for digital 3D takeoff. The technology offers a digital 3D model of the building or structure with centralized data from all disciplines, providing a virtual model to simulate ...

2024年1月1日 · The main contribution of this study lies in its newly developed QTO/QPC system to automate and improve the accuracy of QTO, integrating seven levels of QPC. The QPC sections automatically identify and list all the inconsistencies and encountered problems in the BIM model that adversely impact the QTO outputs.

The research consists of the following four steps: (1) analyzing Level of Detail (LOD) at the early design stage to apply to the QTO process and system, (2) BIM modeling for Open BIM based QTO, (3) checking the quality of the BIM model based on the checklist for applying to QTO and improving constructability, and (4) developing and verifying a ...

At BIMEX Engineers, we use Autodesk Revit and Autodesk Navisworks for preparing BIM based QTO and estimates. Highly detailed, data-rich, intelligent 3D Models are developed using BIM authoring tools, and elements are linked to the corresponding …

2020年9月15日 · Building Information Modeling (BIM) offers the Construction professionals the tools to optimize and increase the automation of various design and construction tasks, namely, the Quantity Take-Off (QTO). In a construction project, this task is essential for accurate...

2022年1月1日 · This paper presents a new knowledge model-based framework that incorporates the semantic information and SMM rules in BIM for automatic code-compliant QTO. It begins with domain knowledge...