Author(s)
Term
4. term
Publication year
2020
Submitted on
2020-01-08
Pages
59 pages
Abstract
I 2020 vil den danske regering kræve obligatorisk evaluering af livscyklusomkostninger (LCC) for nye bygninger, i modsætning til kun at overveje indkøbsomkostninger. Den modne danske byggeindustri ser på LCC som en kilde til konkurrencefordel. LCCbyg er et værktøj, der frigives af de danske myndigheder til beregning af livscyklusomkostninger. Potentiale for automatisering undersøges, da mængder af designmodeller skal konverteres manuelt for at lette beregningerne i LCCbyg. Der findes flere metoder til beregning af indkøbsomkostninger på et objektniveau. Det samme kan ikke siges om driftsomkostninger, hvor metoder stadig blot er afhængige af bygningsarealer. De generiske tilnærmelser redegør ikke for objektets mængde, type og materialer. Derfor var målet med denne undersøgelse todelt; for det første at undersøge potentialet for at basere rengøringsomkostninger på objekter, og for det andet at udvikle og teste en dataoverførselsmetode ved at integrere autonome softwarepakker til design og omkostning. De involverede interessenter drøftede de potentielle risici og fordele ved den objektorienterede tilgang. Uanset proceduren blev overførselsautomatisering betragtet som nyttig. En semi-automatiseret dataoverførsel blev testet på en eksisterende og en designmodel af to kontorbygninger ved hjælp af Building Information Models (BIMs) og et Visual Programming Language (VPL). Afslutningsvis så interessenterne fordelene ved at basere operationelle data på objekter, mens de også pegede på forhindringer vedrørende mangel på modeldetaljer i den tidlige designfase. Den foreslåede tilgang overførte Revit-objektmængder til LCCbyg XML-skemaet, og de operationelle rengøringsomkostningsdata er visualiseret ved hjælp af PowerBI. Metoden kræver yderligere integration med omkostningsdatabaser og andre undergrupper af LCC-beregninger for at blive betragtet som en komplet løsning.
By 2020, the Danish government will require mandatory evaluation of Lifecycle Costs (LCC) for new buildings, as opposed to only considering procurement costs. The maturing Danish building industry sector looks towards LCC as a source of competitive advantage. LCCbyg is a tool released by the Danish authorities to calculate lifecycle costs. Potential for automation is investigated, as currently, design model quantities need to be manually converted to facilitate the calculations in LCCbyg. Multiple methods exist for calculating procurement costs at an object level. The same cannot be said about operational costs, where methods still rely simply on building areas. The generic approximations fail to account for object quantity, type, and materials. Therefore, the objective of this study was twofold; firstly, to investigate the potential for basing cleaning costs on objects, and secondly, to develop and test a data transfer method, integrating autonomous software packages for design and costing. The involved stakeholders debated the potential risks and benefits of the object-oriented approach. Regardless of the procedure, transfer automation was deemed useful. A semi-automated data transfer was tested on an existing, and a design model of two office buildings using Building Information Models (BIMs) and a Visual Programming Language (VPL). To conclude, the stakeholders saw the benefits of basing operational data on objects, while also pointed at obstacles concerning a lack of model detail in the early design phase. The proposed approach transferred Revit object quantities to the LCCbyg XML schema, and the operational cleaning cost data has been visualized using PowerBI. The method requires further integration with cost databases and other subsets of LCC calculations to be considered a complete solution.
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