optimalisering av stikningsdata fra 3d/bim modeller - buildingSMART

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ABSTRACT OF BACHELOR THESIS Title: Optimazation of setting out data from 3D/ BIM models Date : 27.05.11 Participants: Thomas Sebakk Morten Eggum Supervisor: Employer: Bjørn Godager NCC Construction AS, Knut Erik Tandberg Keywords Setting out, Communication, BIM, NCC, 3D (3-5) Number of pages:71 Number of appendix:2 Availability (open/confidential): Open Short description of the bachelor thesis: It becomes more and more common to use 3D/BIM models as basis for setting out in the construction industry. This is a relatively new procedure to retrieve setting out data. Much of the challenge lies in how the models are drawn/ designed by the architect/ consultant. The reason for this task is a 3D model (3D DWG) that are not converted to line and point model. The model consists of solids, i.e. 3D objects that are not divided into lines. This means that the surveying engineer on the project must “draw up” all the lines again to be able to export this to the total station. The task will be to shed light on this issue and look at how the communication between the different parties going on. It has been tested retrieval of setting out data from two different programs; AutoCAD and Gemini Terreng og Entreprenør. This was carried out without additional modules from other companies who have developed this. Testing shows that it is possible to do this in an efficient manner. It is conducted interviews with selected persons in the industry for qualitative method in order to convey experiences and thoughts about the development of BIM in the construction industry. In the interviews the emphasis is on communication between the various actors and how important this is to streamline the industry. The thesis also looks closely at the consultation draft of the guide 138 from the Norwegian Public Roads Administration and the NCC’s new BIM strategy; VDC. The work with the thesis shows that it is possible to extract setting out data in an efficient manner. It is also concluded that it is more beneficial to invest in internal competence level than to purchase custom data sets for each project. Moreover, one can see that working towards a common BIM model will improve communication between the actors significantly.
Optimalisering av stikningsdata fra 3D / BIM modeller______________________ Sammendrag Tittel: Optimalisering av stikningsdata fra 3D/BIM modeller Dato: 27.05.11 Forfattere: Veileder: Oppdragsgiver: Kontaktperson: Nøkkelord: Thomas Sebakk Morten Eggum Høgskolelektor Bjørn Godager NCC Construction AS Knut Erik Tandberg Stikningsdata, 3D modeller, BIM, NCC Construction AS Antall sider: 71 Antall vedlegg: Tilgjengelighet: 2 A-B Åpen Sammendrag: Det blir mer og mer vanlig å bruke 3D/BIM modeller som grunnlag for stikking i anleggsbransjen. Dette er en relativt ny fremgangsmåte å hente stikningsdata på. Mye av utfordringen ligger i hvordan modellene er tegnet/konstruert hos arkitekt/konsulent. Bakgrunnen for denne oppgaven er en 3D modell(3D DWG) som ikke er omgjort til linje og punktmodell. Modellen består av solids, det vil si 3D objekter som ikke er delt opp i linjer. Dette medfører at stikningsingeniøren på prosjektet må ”tegne opp” alle linjer på nytt for å kunne eksportere disse til totalstasjonen. Oppgaven blir å belyse denne problemstillingen og se på hvordan kommunikasjonen mellom de forskjellige aktørene foregår. Det er testet uthenting av stikningsdata fra to forskjellige programmer; AutoCAD og Gemini Terreng og Entreprenør. Dette ble gjennomført uten tilleggsmoduler. Testingen viser at dette er mulig å gjøre på en effektiv måte. 3
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optimalisering av stikningsdata fra 3d/bim modeller - buildingSMART

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