• 한국건축시공학회지
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• 제11권3호
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• pp.265-275
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• 2011

건설 산업에서 BIM의 도입과 활용이 증가하면서 BIM모델의 작성과 관리, 납품, 품질검토 등에 대한 요구가 늘어나고 있다. 이를 위해서는 BIM과 관련된 각종 지침이나 기준, 매뉴얼, 가이드라인 등의 개발과 보급, 확산 등이 필요한 상황이다. 또한 BIM을 활용한 발주가 증가함에 따라 BIM모델에 대한 품질의 검증과 평가의 정량화에 대한 요구가 증대되고 있다, 이에 본 논문에서는 BIM의 품질에 대한 정의와 특징을 이해하고 BIM기준에 대한 국내외 현황을 파악하였으며, 특히 BIM의 품질과 관련된 내용을 중점적으로 조사, 분석함으로써 향후 BIM의 품질을 관리하는데 필요한 최소한의 기준을 설정하였다.

• 한국BIM학회 논문집
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• 제9권1호
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• pp.1-10
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• 2019

In process of creating BIM model for tunnel, many user use still CAD, so the workflow for BIM design is not perfect. Therefore, in this paper, we proposes a method to automatically create BIM model without converting 2D drawings in tunnel design. It can allow engineers to design BIM-based tunnel with maximum use of linear information and modify the BIM model whenever there is changed linear information. To do this, we use Dynamo, which can reduce the time required for creating and modifying BIM models during design changes, saving time wasted for BIM conversion design.

• 한국BIM학회 논문집
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• 제4권1호
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• pp.1-7
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• 2014

The construction method using PC(Precast Concrete) has been widely used because the method can shorten the construction period and improve construction quality. In this paper, through the analysis of present design process for PC railway platform, design parameters on the geometry and properties were extracted and 3D information models for PC railway platform were constructed by the parametric modeling technique. Furthermore, the interface module was developed to link 3D models to the structural analysis/design sheet and database program using VBA(Visual Basic Application). This information model could be used in various areas including structural analysis and design, 2D drawing, quantity estimation and 4D simulation including clash detection.

• 국제초고층학회논문집
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• 제1권1호
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• pp.53-59
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• 2012

With the rise in CPU power and the generalization and popularity of computers, engineering practice also changed from hand calculations to 3D computer models, from elastic linear analysis to 3D nonlinear static analysis and 3D nonlinear transient dynamic analysis. Thanks to holistic design approach and current trends in freeform and contemporary architecture, BIM concept is no longer a dream but also a reality. BIM is not just providing a media for better co-ordination but also to shorten the round-the-clock time in updating models to match with other professional disciplines. With the parametric modeling tools, structural information is also linked with BIM system and quickly produces analysis and design results from checking to fabrication. This paper presents a new framework which not just linked the BIM system by means of parametric mean but also create and produce connection FE model and fabrication drawings etc. This framework will facilitate structural engineers to produce well co-ordinate, optimized and safe structures.

• 한국BIM학회 논문집
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• 제11권1호
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• pp.11-20
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• 2021

In the domestic construction field, BIM and 3D scanning technology are combined to perform reverse engineering. It is necessary to develop guidelines or processes for domestic situations through 3D scenario investigation and reverse engineering projects using BIM. Using the case of actual construction service that performed reverse engineering, we analyze the areas that need to be reinforced compared to the existing advanced cases when creating guidelines. It is recommended to encourage the convergence between 3D scanning and BIM, and to define the requirements and levels of the BIM model in the procedure.

• 한국BIM학회 논문집
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• 제12권4호
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• pp.116-127
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• 2022

Building Information Modeling, which was applied mainly in the construction sector, is expanding to the road sector, and the government recently recommends preparing individual application guidelines considering the characteristics of detailed fields such as railways, ports, and complexes through BIM implementation guidelines. Compared to general construction projects, a lot of the works such as signals, electricity, and power, and the railway BIM 2030 roadmap has been presented to apply BIM to railway construction projects that require business consultation and work environment review with various local governments, and pilot projects are in operation. Unlike a general building, in which the construction begins after the detailed design is completed, in the railway project, the detailed design of other works proceeds along with the roadbed construction. Because construction and design work together, railways need to coordinate detailed engineering interfaces such as trajectories, signals, and power, and the application of BIM in design interface coordination has the advantage of maximizing the effectiveness of pre-review. Overseas railway construction projects actively used BIM to adjust design interfaces and had a collaboration process to modify BIM models and create construction details from the revised models through regular meetings with suppliers. Therefore, this study aims to derive the factors necessary for establishing a BIM collaboration environment based on a survey of practitioners as a preliminary step for establishing the BIM collaboration process of the railway construction project.

• 한국BIM학회 논문집
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• 제8권4호
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• pp.60-71
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• 2018

The port BIM technology has many problems such as lack of relevant system, high cost of BIM infrastructure construction, and process difference of existing domestic inter-industry. Since the port facilities as national key industries are managed and operated by public organizations, it is necessary to integrate IT resources and have a system that needs collective construction and joint utilization management. In this paper, we proposed the convergence of cloud computing technology and BIM as a way to reduce the infrastructure cost required for port BIM operation and to provide various BIM services for domestic process. To do this, we collected system requirements based on demand surveys of port staff and designed a BIM browser that provides IFC-based BIM server and customized services to reduce infrastructure cost in cloud computing environment. In terms of infrastructure, we designed cloud-based IaaS to support cost reduction, which is an essential component, and designed SaaS to support customized services in terms of services. We will perform performance verification with focus on whether port BIM servers and browsers have reached a level where they can manage four BIM models with different types and capacities.

• 한국산학기술학회논문지
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• 제15권12호
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• pp.7385-7392
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• 2014

본 연구는 도로분야의 표준 정보모델 구축을 목표로 하고 있으며 도로 부대시설을 대상으로 IFC 스키마를 확장 개발하였다. 국내 도로설계 관련 문헌 분석을 통해 도로 부대시설을 구성하는 요소를 도출하였으며, 이를 통해 IFC스키마의 엔티티, 타입, 프로퍼티를 정의하여 스키마를 확장 개발하였다. 또한 새로운 스키마를 수용하는 컨버터와 뷰어를 개발하여 부대시설 BIM 모델을 IFC모델로 변환하여 연구결과를 검증하였다. 개발된 스키마를 통해 변환된 표준 모델을 활용할 경우 도로분야 BIM 발주시 표준화 된 모델 기반의 납품 및 검증이 이루어질 수 있으며, 설계단계 뿐만 아니라 시공, 유지관리 단계까지 IFC를 활용하는 토목분야 개방형 BIM 체계를 구축할 수 있을 것이다.

• 한국BIM학회 논문집
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• 제7권1호
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• pp.18-27
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• 2017

Although Industry Foundation Classes (IFC) provide standards for exchanging Building Information Modeling (BIM) data, authoring tools still require manual mapping between BIM entities and IFC classes. This leads to errors and omissions, which results in corrupted data exchanges that are unreliable and thus compromise the validity of IFC. This research explored precedent work by Krijnen and Tamke, who suggested ways to automate the mapping of IFC classes using a machine learning technique, namely anomaly detection. The technique incorporates geometric features of individual components to find outliers among entities in identical IFC classes. This research primarily focused on applying this approach on two architectural BIM models and determining its feasibility as well as limitations. Results indicated that the approach, while effective, misclassified outliers when an IFC class had several dissimilar entities. Another issue was the lack of entities for some specific IFC classes that prohibited the anomaly detection from comparing differences. Future research to improve these issues include the addition of geometric features, using novelty detection and the inclusion of a probabilistic graph model, to improve classification accuracy.

• 한국BIM학회 논문집
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• 제5권1호
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• pp.1-7
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• 2015

Modular technology has become a major issue of the construction industries to enhance their productivity. Modular bridge construction generally requires the data exchange between the contractors, designers, fabricators and constructors. Therefore, a readily accessible information model interface module based on BIM technology is essential for their communication during a project life-cycle. In this study, BIM based information model interface module for a modular pier was developed. For the information models, the PBS(Product Breakdown Structure) and LOD(Level of Development) were defined. Next, all components of a modular pier were conducted by the parametric modeling technique, and then 3D cell library interface was developed. An nterface module was also developed using VBA(Visua basic Application) for exchanging a data from 3D model library to other softwares such as Microstation, AutoCad and Excel and was connected with MS Access database. The developed information model interface module would improve the design quality of the modular pier and reduce the time and cost for design. Updated 3D information models could be utilized for the fabrication, assembly, and construction process for modular piers.