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Parameterstyrd modellering av bergtunnlar
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.
2019 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Parametric Modeling of Ground Tunnels (Swedish)
Abstract [en]

Project designing in the building construction industry has developed a lot during recent years and the result is that not only 2D documents are made, but also 3D models are created to facilitate the project. A problem most players are facing daily is when conditions and information in a project change and design engineers must make necessary changes to their models. These changes can be time-consuming, and the designers may need to do these changes more than once during the project. Could a parametric 3D model make these changes faster than a CAD model when conditions and information on a project change? One of the developers that frequently needs to make changes to its models is WSP geotechnical department. The desire is to find a new working method that increases the efficiency of project design of tunnels. The aim of this thesis was to try parametric modeling as a working method and to see if this method could be used to create ground tunnels. A script has been made in Grasshopper, a visual programming plug-in that generates a parametric model of a tunnel. The parametric model was then compared with an existing CAD model created by the WSP geotechnical department in an earlier project. Pros and cons have been presented and conclusions have been made about if parametric modelling could be more efficient than current working methods. The results of this thesis indicate that parametric modelling is an efficient working method and that it could be used as a working method for future ground tunnel projects.

Abstract [sv]

Projekteringen i byggbranschen har utvecklats mycket de senaste åren och resultatet har blivit att förutom 2D-handlingar, projekteras även 3D-modeller för att underlätta projekteringsarbetet.Ett vardagligt problem som de flesta aktörer står inför är när fler förutsättningar och information i projekt ändras och projektörer tvingas göra ändringar i sina modeller. Dessa ändringar kan vara tidskrävande och behöva göras fler än en gång under projektet. Kan en tredimensionell modell som modellerats parametriskt göra ändringar snabbare när förutsättningar i ett projekt ändras än en CAD modell?En av dessa aktörer som ständigt behöver göra ändringar i sina modeller i efterhand är WSP:s bergteknikavdelning. Önskvärt vore att hitta en ny arbetsmetod som kan effektivisera projekteringen av bergtunnlar.Detta examensarbete syftar till att undersöka om parametrisk modellering kan användas som arbetsmetod för projektering av bergtunnlar. Ett script har skapats i Grasshopper, ett visuellt programmeringstillägg som genererar en parametrisk modell av en tunnel. Den parametriskt skapade modellen har sedan jämförts med en befintlig CAD-modell som skapats av WSP:s bergtekniksavdelning i ett tidigare projekt.Fördelar och nackdelar har lyfts fram och slutsatser har dragits om huruvida parametrisk modellering kan vara mer effektiv än nuvarande arbetsmetoder.Resultaten av detta examensarbete pekar mot att parametrisk modellering är en effektiv arbetsmetod och skulle kunna användas för framtida tunnelprojekt.

Place, publisher, year, edition, pages
2019.
Series
TRITA-ABE-MBT ; 19252
Keywords [en]
Parametric modelling, Grasshopper, visual programing
Keywords [sv]
2D, 3D, Parametrisk modellering, Grasshopper, Visuell programmering, CAD
National Category
Other Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-255607OAI: oai:DiVA.org:kth-255607DiVA, id: diva2:1340018
External cooperation
WSP Svergie AB
Educational program
Bachelor of Science in Engineering - Constructional Engineering and Design
Available from: 2019-08-01 Created: 2019-08-01 Last updated: 2019-09-24Bibliographically approved

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