• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2007년도 정기 학술대회 논문집
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• pp.346-351
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• 2007

As the construction technology is rapidly advancing internationally, the necessity of virtual construction technology development is drastically demanded in the construction industry together with a fusion technology with information technology(IT). The construction technology will be changed as the paradigm of construction technology in the future. The establishment of building structural system in the virtual construction basis is necessary for the integration of construction process, and it will be expected to produce the effect of reduction of construction period and quality improvement through the environment of integration. This study is to present the analysis of the existing process of structural design, the content of research & development as per the building structural system on virtual construction basis and the direction of research.

• 한국철도학회논문집
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• 제11권5호
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• pp.433-440
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• 2008

가상건설기법은 공사대상 시설물을 설계부터 시공까지 3차원 가상공간에서 시행하여, 가상건설과정에서 실제 공사의 문제점을 해결할 수 있는 기법이다. 본 연구에서는 철도연사 시설물을 가상건설기법으로 시공하는 방법론을 구축하였으며, 구축된 방법론에 근거하여 실제 시스템을 개발하여 호남고속철도의 역사 시공과정에 적용하여 실무 활용성을 검증하였다. 연구에서는 시퀀스다이어그램을 이용한 방법론을 통해 레이아웃 리뷰, 레이어 시뮬레이션 기능을 구축하였다. 이러한 기능은 건설프로젝트 정의의 이해를 돕고 3D 시뮬레이션의 효과를 증진시킬 수 있다. 이러한 가상건설기법은 철도역사 시설물의 시공단계 검증 도구로서 공정관리 시각화와 시공 적정성 판단 등의 도구로 활용될 수 있다.

• 한국안전학회지
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• 제33권2호
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• pp.76-85
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• 2018

The interest in the Building Information Modeling (BIM) technology has risen remarkably due to the effects on construction work period reduction, cost reduction, work safety improvement, and other factors. In civil engineering field, BIM applications mainly focus on data modeling and virtual construction. In this study, we present the BIM-based virtual construction and analyze the effects of BIM for the railway facilities so that the conventional approach to the equipment operation plan can be improved in order to prevent safety accidents which can result from unclear information during the operation plan. The BIM-based virtual construction technology is applied to establish the construction plan for the site with constraints, the installation of steel girder needs to be completed, avoiding interference with the existing high-speed railway operation within a given limited time. A virtual construction model consisting of topography, structures, equipments, and avatar was built and more detailed model, including safety guard rails, was then created. Specifications of the construction equipment were input as a database, and the virtual construction model was manipulated in the equipment operation planning. Through the BIM-based virtual construction, including the verification of alternative construction method, 311 million won was saved and the construction period was shortened by 87 days compared to the original plan. In addition, it was shown that the interest and participation of the construction workers can be increased by providing the 3D virtual scene for real construction work and various safety hazards occurring during equipment operation can be effectively removed in advance by the interactive worker education.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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• pp.224-225
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• 2019

Virtual reality technology can be defined as human-computer interface that makes virtual place of specific environments or situation is an interactive computer-generated experience taking place within a simulated environment. In order to combine virtual reality technology of domestic nuclear power industry, the R&D Project has been developing a virtual/augment reality system for nuclear power plant from April 2018 to March 2021. To effectively apply virtual reality technology of domestic nuclear industry, it is necessary to build virtual space similar to real environment. Therefore, This study is analysed 3d model status for nuclear power plant during the life-cycle, and suggested a method to build 3D cad model close to real environment.

• 산업공학
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• 제16권2호
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• pp.258-267
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• 2003

Recently, virtual reality technologies have been rapidly developed and realtime virtual simulation methods have been extensively employed for several application areas such as game, sports, manufacturing, military, and so on. A 3D database in realtime virtual simulation plays a key role because it makes users feel reality in virtual space. In a application view of 3D database, a systematic construction approach is required to reduce its construction time and increase its quality. However, many researches have been mostly focused on realtime graphic issues and its key technologies. In virtual simulation of transportation equipments, this paper proposes a systematic construction process of 3D database consisting of four stages as follows: 1) determine the activity space of a equipment, 2) collect data related to 3D database construction, 3) make a 3-dimensional modeling strategy, and 4) generate and evaluate a 3D model. This paper also introduces a new procedure of 3D environment modeling, which summarizes and expands our modeling experiences, to be used as a modeling guide.

• Journal of Computational Design and Engineering
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• 제1권3호
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• pp.213-222
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• 2014

This paper reviews and identifies issues in the application of virtual commissioning technology for automated manufacturing systems. While the real commissioning of a manufacturing system involves a real plant system and a real controller, the virtual commissioning deals with a virtual plant model and a real controller. The expected benefits of virtual commissioning are the reduction of debugging and correction efforts during the subsequent real commissioning stage. However, it requires a virtual plant model and hence still requires significant amount time and efforts. Two main issues are identified, the physical model construction of a virtual device, and the logical model construction of a virtual device. This paper reviews the current literature related to the two issues and proposes future research directions to achieve the full utilization of virtual commissioning technology.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.10-13
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• 2008

This study suggests a virtual construction technology for railway project using virtual reality and attempts to develop a virtual construction system. For the study, the final system include the layout review function that can rearrange designed element for optimal placement and the earthwork simulation function that can visualize filling and cutting work using central line of earthwork section. Those functions can improve applicability of 3D and 4D object in the design and construction phases of railway project.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2008년도 정기학술발표대회 논문집
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• pp.68-73
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• 2008

최근 정보화 기반의 공사관리기법은 기존의 수치적 정보관리에서 VR기반의 시각적 정보관리로 변화되고 있다. 본 연구에서는 토목공사의 기획단계, 설계단계, 시공단계에서 VR시스템을 기반으로 사용할 수 있는 기능에 대해 구현절차를 IDEF0모형으로 제시한다. 연구에서 IDEF0모형은 실제 가상건설시스템의 기능으로 토목공사의 각 단계에 적용시켜 실무활용성을 검증하는데 활용하고 있다. 제시된 기능모형에 근거하여 연구에서는 각 단계별로 VR기반 시뮬레이션 기능들을 개발하였다. 개발된 가상건설시스템은 3D객체기반으로 설계정보의 시각적인 효과를 증진시킴으로서 효율적인 설계안의 검토를 가능하게 할 수 있다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2015년도 추계 학술논문 발표대회
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• pp.93-94
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• 2015

Building construction education requires training and experience. While there have been many means of education, virtual reality (VR) can be applied as a complement for building construction education. Considering the characteristics of building construction education, interactive content based on VR technology is expected to raise the effectiveness of traditional education. This research conducted a survey to examine the applicability of VR technology to building construction education and provided basic information by prioritizing work types for educational content.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.12-16
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• 2011

Building Information Modeling (BIM) is being widely spread in AEC industry worldwide and also in South Korea. Although the creation of digital model is better to be started at design stage, it can also improve the productivity of construction by simulating the actual construction process and environment. This paper presents application of BIM-based simulations related with design changes to transfer floors in 58-storey reinforced concrete office building. Transfer floor is not only a structurally important part of the building but also a challenging part of the actual construction in terms of sequence and period due to the complexity of the work. Preconstruction of rebar, mechanical, and plumbing is performed to review the construction drawings and to perform clash detection. Each item of application is evaluated for its effectiveness on actual construction and for the development potential.