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  4. Computational geometry in the context of building information modeling
 
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2016
Journal Article
Titel

Computational geometry in the context of building information modeling

Abstract
Building energy analysis has gained attention in recent years, as awareness for energy efficiency is rising in order to reduce greenhouse gas emissions. At the same time, the building information modeling paradigm is aiming to develop comprehensive digital representations of building characteristics based on semantic 3D models. Most of the data required for energy performance calculation can be found in such models; however, extracting the relevant data is not a trivial problem. This article presents an algorithm to prepare input data for energy analysis based on building information models. The crucial aspect is geometric simplification according to semantic constraints: the building element geometries are reduced to a set of surfaces representing the thermal shell as well as the internal boundaries. These boundary parts are then associated with material layers and thermally relevant data. The presented approach, previously discussed at the International Academic Conference on Places and Technologies (Ladenhauf et al., 2014), significantly reduces the needed time for energy analysis.
Author(s)
Ladenhauf, Daniel
Fraunhofer Austria / TU Graz CGV
Battisti, Kurt
A-NULL Bauphysik
Berndt, Rene
Fraunhofer Austria / TU Graz CGV
Eggeling, Eva
Fraunhofer Austria / TU Graz CGV
Fellner, Dieter W.
Fraunhofer-Institut für Graphische Datenverarbeitung IGD
Gratzl-Michlmair, Markus
Ingenieurbüro Gratzl
Ullrich, Torsten
Fraunhofer Austria / TU Graz CGV
Zeitschrift
Energy and buildings
Konferenz
International Academic Conference "Places and Technologies" 2014
Thumbnail Image
DOI
10.1016/j.enbuild.2015.02.056
Language
English
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Fraunhofer AUSTRIA
Fraunhofer-Institut für Graphische Datenverarbeitung IGD
Tags
  • building information ...

  • energy efficiency

  • Industry Foundation C...

  • surface simplificatio...

  • Business Field: Virtu...

  • Research Line: Modeli...

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