• Title, Summary, Keyword: 4D CAD 시스템

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Development and Case Study of 4D CAD System for Visualizing Schedule Data of Construction Project (건설시설물 공정정보 시각화를 위한 4D CAD시스템의 개발 및 적용사례 분석)

  • Kang, Leen-Seok;Yun, Seon-Mi;Kwon, Jung-Hui;Mun, Jin-Seok
    • Journal of the Korean Society for Railway
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    • v.10 no.4
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    • pp.373-380
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    • 2007
  • Recently, various 4D CAD systems for visualizing construction schedule data are being developed. Specially, in case of railway project, the numerical information of progress data should be changed with visualized data by long construction section because the railway project consists of long length in construction site. This study suggests a case study of development of 4D CAD system for visualizing schedule information and the major functions of developed system are verified by railway project. The detailed application procedure of 4D CAD system including input data for a railway project is described in the study. The practical application of 4D CAD system can be improved in railway project by these demonstration researches.

Improved Methodology of Construction Information Management in 4D CAD System (4D-CAD시스템의 공사정보관리 효율화방안)

  • Kang Leen Seok;Kim Chang Hak;Ji Sang Bok;Han Joo A
    • Proceedings of the KSR Conference
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    • pp.1132-1135
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    • 2004
  • Recently. our construction industry is using 4D-CAD system but the public Database (DB) for the 4D-CAD system is insufficiently built. It is difficult to connect 4D-CAD system information such as schedule, drawings. Therefore this study suggest a methodology to link the 4D-CAD system information with work breakdown structure(WBS) and the methodology suggested in this study was applied to a 4D-CAD system

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Development of Major Functions of Visualization System for Construction Schedule Data in Plant Project (플랜트공사 관리 효율화를 위한 공정정보 시각화 시스템의 주요 기능 구성방안)

  • Kang, Leen-Seok;Moon, Hyoun-Seok;Ji, Sang-Bok;Lee, Tae-Sik
    • Korean Journal of Construction Engineering and Management
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    • v.9 no.1
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    • pp.66-76
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    • 2008
  • Plant project is a complex project that consists of civil engineering, building, mechanical and electronic works. The schedule management is one of important factors in plant project because the construction duration of the project is very short comparing with the other construction projects. Specially, 4D CAD system needs to visualize construction schedule information in those complex projects. This study suggests methodologies for improving 4D CAD functions by considering those project characteristics. To develop a plant 4D CAD system, this study includes to develop new functions by analyzing actual schedule information from the plant construction sites.

Development of a Similarity Evaluation System for Offshore Plants' 3D Piping CAD Models Created Using Aveva Marine and SmartMarine 3D (Aveva Marine과 SmartMarine 3D 간의 해양 플랜트 3D 배관 CAD 모델 유사도 평가 시스템 개발)

  • Lee, Jaesun;Kim, Byung Chul;Kim, Hyungki;Cheon, Sanguk;Cho, Mincheol;Lee, Gwang;Kim, Jin-Hyun;Mun, Duhwan;Han, Soonhung
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.40 no.4
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    • pp.397-406
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    • 2016
  • Diverse stakeholders engaged in design, construction, and operation and maintenance of offshore plants typically operate heterogeneous plant 3D CAD systems. Engineering, procurement, and construction (EPC) companies are required to submit plant design result to the owner in the form of a plant 3D CAD model, as specified in the contract. However, because of the limitations of data interface of plant 3D CAD systems, EPC companies frequently perform manual remodeling to fulfill the terms and conditions of the contract. Therefore, comparison should be performed between the source plant 3D CAD model and the remodeled plant 3D CAD model to prove the validity of the remodeled plant 3D CAD model. To automate the comparison process, we have developed a system for quantitatively assessing the similarity of the plant 3D CAD models. This paper presents the architecture and detailed functions of the system. In addition, experimental results using this system are explained.

3D/4D CAD Applicability for Life Cycle Facility Management (3D/4D CAD를 통한 시설물 생애주기 관리 유용분야 도출)

  • Park, Jung-Jun;Kim, Chang-Yoon;Kim, Hyoung-Kwan
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • pp.291-296
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    • 2008
  • For the past two decades, 3D/4D CAD research has heel mainly focused on the design and construction phase of a facility life-cycle. However, there has been a general notion that the strength of 3D/4D CAD lends itself to other phases such as planning, operation and maintenance. In this research, a 3D/4D CAD model was generated in a commercial software platform. Then, the traditional 1:fe cycle facility management procedures are reviewed to, see any possible improvement opportunity with the 3D/4D CAD model as an example. A focus group interview, in conjuction with an extensive literature review, produced the list of area where 3D/4D CAD model could significantly benefit the traditional life cycle facility practices. Finally, a questionnaire-based survey was conducted with 155 respondents to statistically verify the feasibility of 3D/4D CAD for life cycle facility management.

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Function Organization of nD CAD System for Plant Project by Linking Cost and Resource Information (비용과 자원을 연계한 플랜트공사 nD CAD 시스템 기능 구성 방안)

  • Kang, Leen-Seok;Ji, Sang-Bok;Moon, Hyoun-Seok;An, Jae-Kyu
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • pp.809-812
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    • 2007
  • This study suggests a methodology for organizing functions of nD CAD model which 4D object is linked with cost and resource information. And the suggested model is composed of process analysis function of plant project based on visualized scenario analysis. That is, it is possible to manage effectively not only construction schedule plan, but also resource and cost information by integrating construction management information into nD CAD object. And the suggested model can be utilized as information of a effective decision-making tool through analyzing of optimal process scenario and sharing of an analyzed information.

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Development of Telepresence System for Schedule Management in Railway Construction Project (철도시설공사의 현장 공정관리를 위한 원격 영상 운영체계 개발)

  • Kang, Leen-Seok;Kim, Hyeon-Seung;Park, Jin-Jung;Moon, Hyoun-Seok;Shin, Min-Ho
    • Journal of the Korean Society for Railway
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    • v.13 no.1
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    • pp.23-30
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    • 2010
  • In the construction phase, the existing schedule management system by 4D CAD has been difficult to check for a status and progress of construction product in real-time because it simulates only VR (virtual reality) object based on a planned schedule. This study suggests a construction schedule management system by telepresence technique that can visualize progress status in real-time by using 4D CAD system based on remote monitoring. The telepresence methodology and system were developed in the study and they were verified for a railway construction project. The developed system can examine the status and progress of construction because it can compare 4D simulation based on planned schedule with real-time site images through web-camera.

Fundamental Study of 4D CAD Application by Using Augmented Reality for Civil Engineering Project (증강현실(Augmented Reality)의 토목시설물 4D체계 활용을 위한 기초적 연구)

  • Kang, Leen-Seok;Moon, Hyoun-Seok;Kim, Hyun-Soo;Choi, Hyung-Lae;Kim, Chang-Hak
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • pp.658-661
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    • 2008
  • This study aims to suggest a methodology for developing the AR-4D CAD system which can improve construction progress control process by using augmented reality(AR) technology for civil engineering project. This study reviews practical application of AR process in 4D CAB system and suggests the detailed requirements, information flow system and integrated interface function for developing AR-4D CAD system. Through these methods, this research classifies main functions of AR-4D CAD system that can visualize construction progress control data, and suggests an operation scenarios of the system.

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A Study on 4D CAD and GIS Integrated System for Process Risk Management Model (4D CAD와 GIS의 통합시스템을 통한 프로젝트 단계별 리스크관리 모델에 관한 연구)

  • Jeon, Seung-Ho;Yun, Seok-Heon;Paek, Joon-Hong
    • Journal of the Korea Institute of Building Construction
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    • v.7 no.3
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    • pp.91-98
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    • 2007
  • Recently a construction industry introduces information that brings about many advantages in the early planning phase, design phase and construction phase. Especially it replaces 2D, 3D systems(usually using explanation of drawing information) ai 4D CAD(offering a sort of 4D-having relation of construction schedule and 3D drawing information). Nevertheless a 4D has these benefits, it has limits which are not only usually using 3D modeling but also limit of making full use of practical affairs because of a lack of connecting varietals of progress of work. To solve these uppermost limits, this research is presenting unified systems to use in risk management which are efficient management of space and non-space information, space analysis, making full use of data base, introducing GIS system of easy interaction.

Sharing Ship Design Model Based on STEP methodology (STEP 방법론을 이용한 선박설계 모델의 공유)

  • Yong-Jae Shin;Soon-Hung Han
    • Journal of the Society of Naval Architects of Korea
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    • v.35 no.4
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    • pp.98-108
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    • 1998
  • Hull design data is currently prepared by a 2D CAD system and re-input to 3D CAD systems specialized for detail design or to a structural analysis system. In this paper, sharing design data among different CAD systems has been studied. Based on STEP methodology, a neutral model is generated from 2D AutoCAD drawings. To handle a geometric data of this model, the non-manifold model of ACIS is used because it can support various CAD data representation such as 2D graphic entities, 3D wireframe, 3D surface model, and solid B-Rep/CSG model. It is observed that a mon-manifold model can easily be transformed to a 3-D wireframe model for the hull detail design system AutoDef or a FE model for the structural analysis system Nastran.

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