A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Holistic clash detection improvement using a component dependent network in BIM projects
Abstract Building information modeling (BIM) has been increasingly used for design coordination, and clash detection is one important application. However, some studies argued that BIM-enabled clash detection contains many irrelevant clashes. This paper proposes to use network analysis to improve clash detection from a holistic view because a building is an inseparable whole and the dependency relations between building components influence the impacts of clashes. A building component network centered on clash objects is built to represent component dependency. To build the network, this paper determines three kinds of spatial dependent: clash, impact, and connection. For clash relations, the paper further distinguishes four types: intersection, penetration, penetration through, and containment based on the intersection curves of clash objects. To improve generality, Industry Foundation Classes (IFC) models are used to query geometric information and bounding volume hierarchy (BVH) structures are used to eliminate irrelevant comparison for expediting the query process. The paper tests the network method on a real project for improving clash detection and confirms that the method helps to identify irrelevant clashes in four scenarios and reduces 17% of irrelevant clashes. In addition, the paper uses the network to automatically group relevant clashes, thereby decreasing >50% of the clashes initially reported. The paper also shows the function of the component dependent network to analyze the surrounding environment of clashes and identify central components for supporting clash correction.
Highlights Dependent relations between building components are used to improve clash detection Three spatial dependent relations between building components are identified: clash, connect and impact. Geometric and non-geometric methods are used to query dependent relations and a hierarchy structure expedites the query. A component network is built for identifying irrelevant clashes, grouping clashes, and analyzing clash nearby environment. This study impacts the practice by helping project teams focus on critical clashes and improving coordination efficiency.
Holistic clash detection improvement using a component dependent network in BIM projects
Abstract Building information modeling (BIM) has been increasingly used for design coordination, and clash detection is one important application. However, some studies argued that BIM-enabled clash detection contains many irrelevant clashes. This paper proposes to use network analysis to improve clash detection from a holistic view because a building is an inseparable whole and the dependency relations between building components influence the impacts of clashes. A building component network centered on clash objects is built to represent component dependency. To build the network, this paper determines three kinds of spatial dependent: clash, impact, and connection. For clash relations, the paper further distinguishes four types: intersection, penetration, penetration through, and containment based on the intersection curves of clash objects. To improve generality, Industry Foundation Classes (IFC) models are used to query geometric information and bounding volume hierarchy (BVH) structures are used to eliminate irrelevant comparison for expediting the query process. The paper tests the network method on a real project for improving clash detection and confirms that the method helps to identify irrelevant clashes in four scenarios and reduces 17% of irrelevant clashes. In addition, the paper uses the network to automatically group relevant clashes, thereby decreasing >50% of the clashes initially reported. The paper also shows the function of the component dependent network to analyze the surrounding environment of clashes and identify central components for supporting clash correction.
Highlights Dependent relations between building components are used to improve clash detection Three spatial dependent relations between building components are identified: clash, connect and impact. Geometric and non-geometric methods are used to query dependent relations and a hierarchy structure expedites the query. A component network is built for identifying irrelevant clashes, grouping clashes, and analyzing clash nearby environment. This study impacts the practice by helping project teams focus on critical clashes and improving coordination efficiency.
Holistic clash detection improvement using a component dependent network in BIM projects
Hu, Yuqing (author) / Castro-Lacouture, Daniel (author) / Eastman, Charles M. (author)
2019-04-29
Article (Journal)
Electronic Resource
English
Holistic Clash Resolution Improvement Using Spatial Networks
| British Library Conference Proceedings | 2019
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