Informasjonsflyt i en BIM-basert byggeprosess!

Katrine Brevik Opdahl Masteroppgave Informasjonsflyt i en BIM-basert byggeprosess Oslo, 10. juni 2009 NTNU Norges teknisk-naturvitenskapelige universitet Fakultet for ingeniørvitenskap og teknologi Institutt for bygg, anlegg og transport

NORGES TEKNISK- NATURVITENSKAPELIGE UNIVERSITET INSTITUTT FOR BYGG, ANLEGG OG TRANSPORT Oppgavens tittel: Dato: 14. juni 2009 Antall sider (inkl. bilag): 90 Masteroppgave X Prosjektoppgave Navn: Stud.techn. Katrine Brevik Opdahl Faglærer/veileder: Amund Bruland Eventuelle eksterne faglige kontakter/veiledere: Ole Petter Haugen, Skanska Norge Ekstrakt: Problemer med informasjonsflyt i dag: Interoperabilitet på et teknisk nivå, å få riktig informasjon til riktig tid.og oppdatering og utvikling av informasjon Det mangler et integrert system som kan styre produksjon, revisjon og utveksling av informasjon når dette skjer simultant hos flere parter i byggeprosjektet. Systemet må også kunne styre informasjonsoverføringen fra en prosjektfase til neste. Systemet må tilrettelegge for produksjon av informasjon med god kvalitet fra begynnelsen, og ivareta informasjonen gjennom hele byggeprosjektet. BIM muliggjør en mer nøyaktig prosjektering, kalkulering og produksjonsplanlegging, noe som gjør det mulig å korte ned produksjonstiden og minimere feil. Det er også av interesse å effektivisere prosjekterings-, kalkulasjonsog planleggingsprosessene. Ved implementering av BIM vil man produsere informasjon av bedre kvalitet og detaljgrad, men fortsatt er det slik at alle fag har ansvar for å utvikle egne tegninger/modeller for sine egne løsninger. Disse delmodellene må da integreres i en samlet modell til slutt. For å effektivisere prosessene er det nødvendig å endre måten man utveksler informasjon og kommuniserer på. En IDM beskriver bakgrunnsprosessene i byggeprosjekter, informasjonen som behøves for å gjennomføre prosessene, og resultatene av prosessene. Den tar for seg informasjonsutveksling både på organisatorisk og teknisk plan og baserer seg på bruk av BIM og IFC. Målene med IDM er å standardisere informasjonen som utveksles for typiske aktiviteter i byggeprosjekter, å utvikle informasjon basert på åpne filformater, benyttet av alle parter, stille krav til programvareleverandører og å forbedre byggeprosessen ved å ha informasjon tilgjengelig når den behøves og at kvaliteten til enhver tid samsvarer med behovet til brukeren. IDM er et dokument-sett som består av prosesskart, exchange requirements og functional parts For å effektivisere prosessen vil man gjøre det mulig for flere parter å arbeide samtidig og også sørge for teknisk interoperabilitet slik at man kan være sikker på kvaliteten på informasjonen som overføres digitalt. Samarbeidet om design kan forbedres ved å bruke BIM i kombinasjon med en modellserver. Dette er også en forutsetning for at IDM skal fungere optimalt. Siden det er dyrt å bruke en BIM server er det interessant å teste om en gratis open-source BIM server fungerer like godt som en kommersiell server-løsning. Stikkord: 1. Informasjonsflyt 2. Bygningsinformasjonsmodell, BIM 3. Information Delivery Manual, IDM 4. BIM server (sign.)

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