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Application of BIM and GIS in Class 1-5 Cost Estimates

机译:BIM和GIS在1-5级成本估算中的应用

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摘要

Building Information Modeling (BIM) and Geographic Information Systems (GIS), based on open standards, transform the way the cost engineering industry works and will work in the future. This paper presents four examples to demonstrate how BIM and GIS can be applied to all classes of estimates. The first example includes a building, in conjunction with GIS, to model and optimize a real estate development project to produce a Class 5 estimate. The second example demonstrates how architectural BIM sketches can be combined with smart assemblies that use conceptual cost data to produce a Class 4 estimate. The third example uses a basic design BIM model, combined with commercial assemblies, to produce a Class 3 estimate. The fourth example uses a detailed Industry Foundation Class (IFC) model for a quantity takeoff, and combined with commercial databases, generates a Class 2 estimate. The same BIM model is used as a basis for creating and managing quotes from suppliers and subcontractors and developing definite Class 1 estimates. The resource and cost loaded detailed BIM model is examined through value engineering and analysis as an alternate method for presenting proposals.
机译:基于开放标准的建筑信息模型(BIM)和地理信息系统(GIS)改变了成本工程行业的运作方式,并将在未来发挥作用。本文提供了四个示例,以演示BIM和GIS如何应用于所有类别的估算。第一个示例包括与GIS结合使用的建筑物,用于对房地产开发项目进行建模和优化,以产生5级估算。第二个示例演示了如何将建筑BIM草图与使用概念成本数据生成4类估计的智能装配组合。第三个示例将基本设计BIM模型与商业装配体结合使用,以得出3类估计值。第四个示例使用详细的行业基础分类(IFC)模型进行数量估算,并与商业数据库结合,生成第2类估算值。相同的BIM模型被用作创建和管理供应商和分包商报价的基础,并开发确定的1类估算。通过价值工程和分析来检查资源和成本加载的详细BIM模型,作为提出建议的替代方法。

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