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Machine-code functions in BIM for cost-effective high-quality buildings

Maurer, Christoph ; Sprenger, Wendelin ; Franz, Steffen ; Boudhaim, Marouane ; Lodewijks, Jan ; Rüppel, Uwe ; Kuhn, Tilmann E. :
Machine-code functions in BIM for cost-effective high-quality buildings.
In: Energy and Buildings, 155 pp. 467-474. ISSN 03787788
[Artikel] , (2017)

Kurzbeschreibung (Abstract)

Based on an analysis of building processes to date, this paper proposes two ways to make Building Information Modelling (BIM) and with it complex building processes less expensive and more reliable. First, existing experience with building processes that include building-integrated solar systems is analysed, as they are one example for buildings with high energy-saving goals. Based on the analysis, the authors propose to include a new property set and functions in machine code in the next version of the Industry Foundation Classes (IFC). For the machine-code functions, several formats are proposed and the advantages and disadvantages of the proposed IFC extensions are discussed. For simple conventional building components, the existing IFC version 4 seems appropriate. Buildings with innovations that add complexity to the building process can profit most by the savings generated by exchanging machine-code functions. In building processes to date, much information is not shared because of proprietary matters. Functions in machine code can provide the necessary confidentiality so that more capabilities can be exchanged between the stakeholders. Models based on machine-code functions can be updated much faster than detailed models with many parameters. With machine-code functions, advantage can be taken of the greater accuracy of detailed models, as long as they are fast and easy to use. The modularity of the functions stimulates competition between alternative approaches, which makes simulation models less expensive. Finally, exchanging a closed, validated simulation model in machine code introduces a much lower risk of error than exporting and importing complex simulation models.

Typ des Eintrags: Artikel
Erschienen: 2017
Autor(en): Maurer, Christoph ; Sprenger, Wendelin ; Franz, Steffen ; Boudhaim, Marouane ; Lodewijks, Jan ; Rüppel, Uwe ; Kuhn, Tilmann E.
Titel: Machine-code functions in BIM for cost-effective high-quality buildings
Sprache: Englisch
Kurzbeschreibung (Abstract):

Based on an analysis of building processes to date, this paper proposes two ways to make Building Information Modelling (BIM) and with it complex building processes less expensive and more reliable. First, existing experience with building processes that include building-integrated solar systems is analysed, as they are one example for buildings with high energy-saving goals. Based on the analysis, the authors propose to include a new property set and functions in machine code in the next version of the Industry Foundation Classes (IFC). For the machine-code functions, several formats are proposed and the advantages and disadvantages of the proposed IFC extensions are discussed. For simple conventional building components, the existing IFC version 4 seems appropriate. Buildings with innovations that add complexity to the building process can profit most by the savings generated by exchanging machine-code functions. In building processes to date, much information is not shared because of proprietary matters. Functions in machine code can provide the necessary confidentiality so that more capabilities can be exchanged between the stakeholders. Models based on machine-code functions can be updated much faster than detailed models with many parameters. With machine-code functions, advantage can be taken of the greater accuracy of detailed models, as long as they are fast and easy to use. The modularity of the functions stimulates competition between alternative approaches, which makes simulation models less expensive. Finally, exchanging a closed, validated simulation model in machine code introduces a much lower risk of error than exporting and importing complex simulation models.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Energy and Buildings
Band: 155
Freie Schlagworte: BIM, cost-effective, high-quality buildings, Machine-code functions
Fachbereich(e)/-gebiet(e): 13 Fachbereich Bau- und Umweltingenieurwissenschaften
13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut für Numerische Methoden und Informatik im Bauwesen
Hinterlegungsdatum: 27 Sep 2017 16:59
DOI: 10.1016/j.enbuild.2017.09.029
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