• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1081-1087
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• 2009

An automatic construction system in Korea is now at the stage of the full automation like in Japan, and an actual pilot project is going to be built in 2009. However, in developing a new construction system that has never been implemented before, there is a need to assess the performance and to consider the uncertainty of the system. The program evaluation and review technique (PERT) allows dealing with this uncertainty. Thus, this paper implements an analysis of the process of steel fabrication and makes suggestions for time-related problems arising from the analysis. The time required for steel erection by the automatic system was compared with that in the traditional method. In the result, finding out another construction process and improving robot performance were proposed to resolve the problems. The results will contribute to promoting the development of an efficient system for the new automatic construction system.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.377-382
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• 2005

The tools, methods and measures used for project control reflect underlying theories of management. Management theory has been neglected in the construction industry, which has rather focused on tools and neglected theory. This paper contributes to the theory of project management by introducing and developing two fundamental and competing conceptualizations of management: MBM (Managing-by-Means) and MBR (Managing-by-results). Current project control and performance measurement practice is based on MBR. However, project control based on MBR may not be appropriate for managing dynamic projects. The paper present the Last Planner^TM System (LPS) and Process Variance Control (PVC) as examples of methods reflecting the MBM view. It is argued first that the MBM view is appropriate for managing uncertain, complex and quick projects. The paper also explores how MBR tools and techniques may be appropriately used within an MBM framework.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.145-150
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• 2013

As a recent global trend, the majority of mega-size plant projects are delivered through EPC (Engineering, Procurement and Construction) contracts, where a single contract is awarded for engineering, procurement, and construction. Under this contracting mechanism, it is challenging for contractors to carry out the projects under traditional project management processes used in design-bid-build projects. A new EPC Plant, the POSCO Special Steel Plant in Changwon, was built successfully at the beginning of 2012 and it is currently in full-scale production. The project has encountered a number of major difficulties however, with some technical and managerial issues through its development process. As summarized in this paper, the authors (as project participants with the contractor) investigated it as a post construction analysis and recorded the Lessons-learned for future project management improvement.

• 국제학술발표논문집
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• The 2th International Conference on Construction Engineering and Project Management
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• pp.61-68
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• 2007

There has been a lot of research on and release of commercial systems that enable evaluation and visualization of construction methods. These have enabled the selection of good construction plans. However, the process in which engineers build 3D geometry, formulate a schedule and eventually synchronize them is still a time-consuming process. Changing any aspect of the geometry or the schedule and re-linking them is also time-consuming. Therefore, the engineers may compromise on getting the best solution. This paper describes a technique to automate the generation of multiple sets of schedules, quantity takeoffs and 4D visualization from a single 3D model.

• 한국건설관리학회논문집
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• 제20권1호
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• pp.114-123
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• 2019

ICT를 적용한 건설 프로젝트의 성공적 수행을 위해서는 건설 생산 프로세스를 시각정보모델로 정의하여 프로젝트 참여자들이 해당 프로세스 상에서 ICT가 담당(혹은 실행)하는 작업의 내용 및 절차를 이해할 수 있어야한다. 기존 IDEF0은 비즈니스 프로세스, 정보 시스템 등을 시각화 및 분석하는 대표적 모델링 방법이다. 반면, 조직(혹은 기업)이 수행하는 작업들에 대해서만 표현할 뿐 프로세스 상의 ICT가 적용되는 작업들 간의 순서, 정보전달 및 실행 방법에 대한 구체적 설계기법을 제공하지 않는다. 본 연구는 ICT 적용 추적가능성을 향상시킨 업무 모델링(IAMB) 기법을 개발하여, 업무프로세스에 적용되는 ICT의 특징을 명확하게 인식 및 정의할 수 있는 체제를 제공한다. IAMB 모델은 관리, 시공, 정보 등 3개 부분으로 구분되며, 육하원칙에 의거 누가, 언제, 어떤 ICT기법을 적용하여, 어떤 순서로 프로세스 정보를 처리하는지 규명하게 한다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2016년도 춘계 학술논문 발표대회
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• pp.156-157
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• 2016

Construction projects have shown a dramatic increase in size and complexity during the recent years that precise management has been recognized as one of key factors leading the project to success. It has been investigated that management in construction sites is generally done based on the experience of site engineers. Such experience based decision making lacks reliability that could bring disastrous results such as delay and cost overruns. The purpose of this study is to suggest a process progress pattern analysis method that is expected to be used as an objective reference for site managers to aid the decision making done regarding process progress management.

• 한국건설관리학회논문집
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• 제23권1호
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• pp.106-112
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• 2022

적층제조(AM, 3D프린팅) 기술은 건설업계에서 다양한 효과로 주목받고 있다. 특히 시공자동화, 자원관리, 시공기간 정밀도 향상, 작업자 안전 등의 문제점을 해소하는 능력을 기대하고 있다. 하지만, 적층 시공 과정은 축적된 데이터가 많은 기존 시공기술과 달리 성숙하지 못한 절차 및 시공방법으로 인해 시행착오와 예측이 어려운 사고를 유발한다. 본 연구에서는 현장 시공형 건설 AM 프로세스를 설계하고 실증을 위한 실험이 진행된다. 또한, 정성적인 실험결과의 원인 분석이 진행되었다.

• 한국건설관리학회논문집
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• 제1권4호
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• pp.98-105
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• 2000

The drawing information takes the most essential part of construction information. The management of construction information through drawing information facilitates input, output and search process, thus helping maximize the usage of construction information by effectively sharing construction experience and drawing information. This paper shows how construction information can effectively used to increase the productivity of the construction process as a whole. Construction information was extracted and classified by the elements of building which are the basic and very end components of building, to accumulate information of each construction phase. Based on the result, the Element Breakdown Structure(EBS) was developed for the practical usage of construction information integration.

• 한국건설관리학회논문집
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• 제16권6호
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• pp.73-83
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• 2015

건설산업의 변화에 따라 대부분의 국내 CM기업들은 공정 원가 품질 안전관리를 중점관리 대상으로 선정하여 관리하고 있으며 리스크 관리를 위한 전담조직 설치 및 임직원 교육, 시스템개발에 대한 투자는 미흡한 실정이다. 이처럼 국내 CM기업들이 리스크 관리 분야에 대한 투자가 부족한 이유는 체계적인 방법론이나 논리에 의해서 리스크를 분석하기 보다는 직관과 경험에 근거하여 판단하는 것이 더 쉽고, 체계적인 리스크 관리를 위한 표준업무체계 개발에 대한 중요성을 인식하지 못하기 때문이다. 따라서 본 연구는 CM기업 본사에서 현장 운영관리 시 발생되는 리스크 인자 도출 및 업무 프로세스를 분석하여 문제점을 분석하고, 리스크 인자별 효율적인 관리를 위한 표준업무체계를 제시하였다. 또한 전문가들의 면담을 통해 효율성을 검증하여 향후 리스크 인자별 표준 대응 절차서 활용과 리스크 관리 시스템 개발을 위한 기초 자료로 활용될 수 있을 것으로 기대한다.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.280-283
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• 2015

Many construction projects have used the building information modeling (BIM) extensively considering data interoperability throughout the projects' lifecycles. However, the current approach, which is to collect the data required to support facility maintenance system (FMS) has a significant shortcoming in that there are various individual pieces of information to represent the performance of the facility and the condition of each of the elements of the facility. Since a heterogeneous external database could be used to manage a construction project, all of the conditions related to the building cannot be included in an integrated BIM-based building model for data exchange. In this paper, we proposed an ontology-based facility maintenance information model to integrate multiple, related pieces of information on the construction project using industry foundation classesbased (IFC-based) BIM data. The proposed process will enable the engineers who are responsible for facility management to use a BIM-based model directly in the FMS-based work process without having to do additional data input. The proposed process can help ensure that the management of FMS information is more accurate and reliable.