• Title/Summary/Keyword: 4D 공정관리시스템

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Introducing and Surveying 4D Models in AEC Industry (4D 공정관리시스템의 개발현황 조사연구)

  • Kang Leen-Seok
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.137-142
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    • 2001
  • The traditional schedule management system provides project manager with analysis reports, such as progress control, earned value management and resource management, including schedule chart. However, the reports and functions in the traditional system are still limited in 2D concept. Recently, the scheduling method is using 4D concept that time of construction schedule is linked to space of drawings. This study presents the limitation of those systems and an improved method for developing 4D system through the comparative analysis of representative 4D systems that are developed up to date.

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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 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.

Earned Value Management Systems Using 4D-CAD (4D CAD 활용을 통한 공정-원가 통합 시스템)

  • Park Ji-Ho;Jung Young-Soo;Kim Sung-Mo
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.504-508
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    • 2003
  • Cost and schedule are the major concerns for the successful construction project management. The four dimensional CAD (4D CAD) integrating graphical data and scheduling data has also been an area of research interests for improving construction controls. In order to achieve the benefits from these areas in an integrated way, this study proposes a 4D-EVMS system for the owners. Managerial requirements for cost and schedule control for the owners are identified first. A 4D-EVMS model is then proposed which provides functional flexibility in order to enhance the efficiency of the system. Lessons learned and practical implications are briefly summarize.

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A Study on the Development of Construction Progress Management system based on BIM (BIM 기반의 건설공사 진척관리 시스템 개발을 위한 기초연구)

  • Shin, Yoon-Kyung;Kim, Sun-Hyo;Park, Sung-Han;Yun, Seok-Heon;Paek, Joon-Hong
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2010.04a
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    • pp.525-528
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    • 2010
  • 본 논문은 BIM기반 건설공사 진척관리 시스템의 개발 방향을 제안하는 것이다. 이를 위해 일차적으로 기존 4D 진척관리프로그램인 Synchro 4D와 Navisworks를 분석을 하여 문제점을 도출했다. 이를 극복하고자 국내실정에 맞는 방안 및 공정과 3D객체 연계의 효과적 방안을 제안하였고 예상공정과 실제공정의 시각적 비교 기능 및 통합건설정보관리 기능 추가를 제시하여 이 프로그램의 본 목적인 효율성 증진을 위해 향상된 진척관리 방식을 제안하고자 하였다.

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Development of 4D System Linking AR and 3D Printing Objects for Construction Porject (AR과 3D 프린팅 객체를 연계한 건설공사 4D 시스템 구성 연구)

  • Park, Sang Mi;Kim, Hyeon Seung;Moon, Hyoun Seok;Kang, Leen Seok
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.41 no.2
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    • pp.181-189
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    • 2021
  • In order to increase the practical usability of the virtual reality(VR)-based BIM object in the construction site, the difference between the virtual image and the real image should be resolved, and when it is applied to the construction schedule management function, it is necessary to reduce the image gap between the virtual completion and the actual completion. In this study, in order to solve this problem, a prototype of 4D model is developed in which augmented reality (AR) and 3D printing technologies are linked, and the practical usability of a 4D model linked with two technologies is verified. When a schedule simulation is implemented by combining a three-dimensional output and an AR object, it is possible to provide more intuitive information as a tangible image-based schedule information when compared to a simple VR-based 4D model. In this study, a methodology and system development of an AR implementation system in which subsequent activities are simulated in 4D model using markers on 3D printing outputs are attempted.

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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    • 2007.11a
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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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Functional Analysis of 4D CAD System and Improvement of Function for Applying Linear Construction Project (4D CAD시스템의 기능분석 및 선형시설물 적용을 위한 기능 개선 방안)

  • Kim, Hyeon-Seoug;Kang, Leen-Seok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.9
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    • pp.269-278
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    • 2018
  • In Korea, BIM technology is applied mainly to building construction projects, but is expected to be applied rapidly to civil engineering projects because the government is currently considering the mandatory application of BIM for infrastructure facilities. Because the infrastructure project is processed in a horizontal work area, the application of BIM technology is more useful in the schedule management of the construction phase than the interference management of the design phase. The 4D CAD system is a typical BIM technology applied to the schedule management in the construction phase, but the application to the actual project is limited due to the lack of practical functions. This study examined the functions of four representative 4D CAD systems commercialized so that the selection criterion can be provided according to the characteristics of the project, and suggests that the functions that should be improved to have practicability. As a result of functional analysis, the application characteristics of each system were analyzed and the user convenience was suggested. In addition, a linear 4D simulation methodology was developed to improve the functions applicable to civil engineering projects, and ways to improve the utilization of the infrastructure projects as the construction phase BIM were suggested. In railway and road construction projects, most activities, such as earthwork, bridges, and tunnels proceed along the distance axis in a horizontal space. Therefore, a linear 4D simulation method, in which an activity is expressed along a distance axis, can be more practically useful rather than a simple 4D simulation method with a Gantt chart.

Intelligent Production Management System with the Enhanced PathTree (개선된 패스트리를 이용한 지능형 생산관리 시스템)

  • Kwon, Kyung-Lag;Ryu, Jae-Hwan;Sohn, Jong-Soo;Chung, In-Jeong
    • The KIPS Transactions:PartD
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    • v.16D no.4
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    • pp.621-630
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    • 2009
  • In recent years, there have been many attempts to connect the latest RFID (Radio Frequency Identification) technology with EIS (Enterprise Information System) and utilize them. However, in most cases the focus is only on the simultaneous multiple reading capability of the RFID technology neglecting the management of massive data created from the reader. As a result, it is difficult to obtain time-related information such as flow prediction and analysis in process control. In this paper, we suggest a new method called 'procedure tree', an enhanced and complementary version of PathTree which is one of RFID data mining techniques, to manage massive RFID data sets effectively and to perform a real-time process control efficiently. We will evaluate efficiency of the proposed system after applying real-time process management system connected with the RFID-based EIS. Through the suggested method, we are able to perform such tasks as prediction or tracking of process flow for real-time process control and inventory management efficiently which the existing RFID-based production system could not have done.

Simplified Methodology to Generate 2D/3D Object in 4D system for Civil Engineering Projects (토목시설물 4D구현을 위한 2D/3D 객체 생성 간편화 기법)

  • Lee Syeung-Youl;Lee Yong-Soo;Kim Chang-Hak;Kang Leen-Seok
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.585-588
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    • 2003
  • This study attempts to develop a skeleton model to link construction schedule and 3D object for drawings in 4D system. Generally, the construction schedule and 3D object can be linked in 4D system by imported files which are made in specific S/Ws such as CAD S/W and scheduling S/W. Those methods have a difficulties for operating 4D data because extra work needs to link 4D data for each activity. This study develops a 4D model which the 4D data can be self-generated within the system. The suggested model can reduce the initial input data for new project by integrating schedule and 3D object in 4D system.

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