KR-102962921-B1 - METHOD FOR CLASH DETECTION IN BIM MODEL

Abstract

An embodiment discloses a BIM model interference review method comprising: a step in which an interference review module extracts information for interference review of a BIM model; a step in which the interference review module constructs an interference semantic knowledge graph; a step in which the interference review module classifies the type and severity of interference of the BIM model through the interference semantic knowledge graph; and a step in which the interference review module outputs the classification result of the type and severity of interference; wherein the step of classifying the type and severity of interference includes a step of classifying the type and severity of physical interference of the BIM model and a step of classifying the type and severity of indirect interference of the BIM model.

Inventors

• 구본상
• 유영수
• 이원복
• 신동욱
• 이현우
• 성윤재
• 최상준

Assignees

• 서울과학기술대학교 산학협력단

Dates

Publication Date

20260511

Application Date

20250729

Claims (5)

1. A step in which the interference review module extracts information for interference review of the BIM model; The step of the above interference review module constructing an interference semantic knowledge graph; A step in which the interference review module classifies the type and severity of interference in the BIM model through the interference semantic knowledge graph; and The above interference review module includes the step of outputting a classification result of the type and severity of the interference; A BIM model interference review method comprising a step of classifying the type and severity of interference, a step of classifying the type and severity of physical interference of the BIM model, and a step of classifying the type and severity of indirect interference of the BIM model.
2. In paragraph 1, The step of extracting the above information is, A step of analyzing the proximity between objects within the above BIM model; A step of analyzing the separation distance or overlap distance between the above objects; A step of extracting attribute information and shape information of the above object; and A BIM model interference review method comprising the step of extracting adjacency relationship information between the above objects.
3. In paragraph 2, The step of constructing the above interference semantic knowledge graph is, A step of arranging nodes and edges based on attribute information, shape information, and adjacency relationship information between the objects; and The method includes the step of inserting attribute information of the above node and the above edge; A BIM model interference review method in which the attribute information of the above node includes attribute information and shape information of the above object, and the attribute information of the above edge includes adjacency relationship information between the above objects.
4. In paragraph 1, The types of physical interference in the above BIM model include interference types between the same type of work and interference types between different types of work, and Interference between the same type of work and interference between different types of work are distinguished based on whether consultation between types of work is necessary to resolve the aforementioned physical interference, and A BIM model interference review method in which the severity of physical interference in the above BIM model is classified into major, medium, and minor stages.
5. In paragraph 1, The types of indirect interference in the above BIM model include types of omission or location error and types of failure to secure separation distance, and A BIM model interference review method in which the severity of indirect interference in the above BIM model is classified into Major, Medium, and Minor stages.

Description

Method for Clash Detection in BIM Model The embodiment relates to a method for reviewing interference in a BIM model. Specifically, the embodiment relates to a method for reviewing interference in a BIM model that can classify interference types and interference severity in a BIM model based on a semantic knowledge graph. Recently, as the application of BIM (Building Information Modeling) technology expands in the architecture and civil engineering industries, the efficiency of structural design and construction is significantly improving. BIM is a system that integrates and manages information necessary for the design, construction, and maintenance of buildings based on 3D models, which allows for the simulation and optimization of various elements of a building. Currently, BIM design in the architectural field is performed separately by participants of each discipline (architecture, structure, mechanical, electrical, and plumbing (MEP)) and integrated during the detailed design phase. Due to the nature of this fragmented modeling process, numerous interferences occur between components during the integration of BIM models; recently, as project scales have become massive, the number of such interferences is increasing exponentially. Accordingly, interference analysis using BIM model review tools is considered a critical task for the early detection of design errors. However, since most BIM model review tools detect hard clashes based solely on whether two members physically collide, they struggle to detect soft clashes—indirect clashes that are classified as design errors due to maintenance difficulties even in the absence of physical collision. Such clashes must be reviewed using concepts based on design knowledge rather than geometric calculations, requiring experts to verify their presence by directly reviewing 3D models or performing additional modeling of the search area. This process demands a significant workforce while frequently resulting in the omission of detected clashes. Furthermore, in practice, the severity of each interference instance (Major, Medium, Minor) is classified to distinguish between those requiring urgent resolution and those of relatively low importance; however, existing BIM model review tools have limitations in that they only identify the presence of interference and fail to provide the type or severity of each interference. Consequently, practitioners must manually review the severity of all detected interferences to classify their types and severity. This manual process acts as a major factor hindering the efficiency of the review process. FIG. 1 is a conceptual diagram of an interference review module according to an embodiment, and FIG. 2 is a configuration diagram of an interference review module according to an embodiment, and FIG. 3 is a flowchart of a BIM model interference review method according to an embodiment, and FIG. 4 is a diagram illustrating the process of extracting object attribute information and shape information in a BIM model interference review method according to an embodiment, and FIG. 5 is a diagram illustrating the buffer area creation process in a BIM model interference review method according to an embodiment, and FIG. 6 is a diagram illustrating the process of constructing an interference semantic knowledge graph in a BIM model interference review method according to an embodiment, and FIG. 7 is a diagram showing an example of an ontology schema in a BIM model interference review method according to an embodiment, and FIG. 8 is a diagram illustrating the process of placing nodes and edges in a BIM model interference review method according to an embodiment, and FIG. 9 is a drawing showing the results of an interference semantic knowledge graph constructed according to the BIM model interference review method according to an embodiment, and FIG. 10 is a drawing showing an example of node and edge placement within an interference semantic knowledge graph constructed according to the BIM model interference review method according to an embodiment, and FIGS. 11 to 14 are drawings showing an indirect interference review method of a BIM model interference review method according to an embodiment, and FIG. 15 is a diagram illustrating the process of transmitting and receiving interference review results in a BIM model interference review method according to an embodiment, and FIG. 16 is a drawing showing an example of updating edge attribute information based on physical interference review results in a BIM model interference review method according to an embodiment, and FIG. 17 is a drawing showing an example of updating edge attribute information based on indirect interference review results in a BIM model interference review method according to an embodiment, and FIG. 18 is a drawing showing an example of an interference review module UI in a BIM model interference review method according to an embodiment, and FIG. 19 is a drawing showing an examp