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검색결과 61건 처리시간 0.026초

Practical Issues of Earned Value Management Systems (EVMS) for Nuclear Power Plant (NPP) Construction

  • Jung, Youngsoo;Kim, Sungrae;Moon, Byeong-Suk
    • 국제학술발표논문집
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    • The 6th International Conference on Construction Engineering and Project Management
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    • pp.696-697
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    • 2015
  • Cost, schedule, and quality are the three major performance indicators for any construction project. Under the globalized competition in the nuclear industry, researchers and practitioners have also explored a systemized and integrated management system for cost, schedule, and quality. In order to address this issue, the concept of earned value management system (EVMS) has been often utilized. However, implementing EVMS for a mega-project of nuclear power plant (NPP) construction requires extensive overhead efforts. Though previous studies proposed structures and methods for effective NPP EVMS, there has been no legitimate study for data collection strategy for practical implementation. In this context, the purpose of this paper is to develop an effective data collection strategy for NPP EVMS. Firstly, the barriers to practical NPP EVMS were identified based on literature review and expert interviews. Strategies for data collection were then developed based on different phases of project life cycle. This study focuses on the 'life-cycle integrated progress management system' for NPP construction from an owner's perspective Therefore, results of this study can be used as a guide for preparing request for proposals (RFP) of an NPP owner organization.

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프랙탈 지수를 이용한 농촌 경관사진의 정량화 방안 연구 (A Study on the Quantifying of Rural Landscape Picture by Fractal Index)

  • 정호현;정남수
    • 농촌계획
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    • 제16권3호
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    • pp.11-17
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    • 2010
  • With international attention to the rural landscape, there have been landscape management and conservation efforts. Because it contains characteristics of rural area, rural landscape has been recognized as an important component of rurality. With rural amenity resources survey projects launched since 2005, rural landscape categorization and evaluation such as resource value, use value, beauty, originality, traditionality, maintenance are performed by expert questionnaire survey and 100 rural amenity resources are selected. In this study, we performed fractal analysis for developing evaluation system of the rural landscape photographs. In evaluating processes, main and surrounding landscape are separated and fractal indexes are calculated and analyzed with beauty value scoured by experts. Results show that beauty value is not significantly related with fractal index but differences of main and surrounding landscape fractal index.

BASIC RESEARCH FOR BUILDING EDUCATIONAL FACILITY MAINTENANCE PROCESS - FOCUSING ON DAEJEON METROPOLITAN CITY -

  • Jung-Whan Oh;Chun-Kyong Lee ;Mi-Hye Lee ;Tae-Keun Park
    • 국제학술발표논문집
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    • The 1th International Conference on Construction Engineering and Project Management
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    • pp.1203-1207
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    • 2005
  • At this point of time that it is required to improve educational environment and the function of educational facilities as well as interests on educational facility business is increasing, it is actual situation that unsystematic maintenance of educational facility is not being able to cope with the change caused by introducing the 7th curriculum. Also, in spite of enormous career in maintenance work, the function is not properly performed because of unsystematic management. In case of educational facility manager, he parallels performing general administrative work and facilities maintenance work not as a maintenance expert but as a member of administration office. So there are difficulties in performing maintenance work, and systematic maintenance work cannot be expected because of lacking maintenance manual. Therefore, in this research, I would like to investigate and analyze the status of educational facilities and to elicit the point of issue as a basic research to save maintenance expenses and to make pleasant educational environment.

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Development of Review Processes and Tools for Liquidated Damages for EPC/Turnkey Project: Contractor's Perspective

  • Hahn, Ki Jeong;Lee, Eul-Bum;Kim, Young Ho
    • 국제학술발표논문집
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    • The 6th International Conference on Construction Engineering and Project Management
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    • pp.718-719
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    • 2015
  • As a recent global trend, the majority of plant projects are delivered through EPC or EPC-turnkey contracts, where a contractor's liability is more complicated because of the mega size scale and financing method. Previous researches have been lacking a practical usability for project members for liabilities of contracts. Those were focused on solving the claims or schedule calculation issues only. The objective of the present study was to develop a validation process for LDs (liquidated damages) in contractor's liabilities with various case studies and expert judgments. As summarized in this paper, the processes and tools were developed with project life cycle process. The project preparation phase includes 3 step check lists to determine the Go or No-go for projects. In progress phase, contractors should focus on the response strategies for claims with liabilities. The study concludes that those developed processes and tools will help to manage risk of LDs for the contractors in the overseas projects.

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Indicators for assessing neighbourhood satisfaction in state provided housing in South Africa

  • Aigbavboa, Clinton;Thwala, Wellington
    • 국제학술발표논문집
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    • The 6th International Conference on Construction Engineering and Project Management
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    • pp.361-366
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    • 2015
  • The objective of this paper was to establish the attributes that determines neighbourhood satisfaction in South Africa lowincome housing subsidy scheme ultilising the Delphi approach. This is because the perception and housing satisfaction of lowincome housing beneficiaries toward their housing condition can be studied by examining their satisfaction toward s the neighbourhood factors. The Delphi method was used where the views of housing experts were solicited on 26 potential attributes as identified from li terature. Consensus was achieved after three iterative rounds. The expert"s scored each attributes on a 10-point ordinal scale of impact significance, where 1-2=No impact and 9-10= very high impact. The scales adapted for consensus were: strong consensus, median 9-10, inter quartile deviation (IQD) ≤1; good consensus, median 7 ≤ 6.99and IQD≥2.1≤3. The key findings indicate that there was a good to strong consensus of 19 attributes which were key attributes that the experts perceived as determinants of neighbourhood satisfaction; while 6 other attributes had weak consensus, as they were considered to have a le sser impact in determining residents" neighbourhood satisfaction. However, attributes with weak consensus were the attributes that are highly regarded as core neighbourhood factors in other housing settings. The study contributes to the body of knowledge on th e subject where no consensus has been reached pertaining to indicators for measuring neighbourhood satisfaction in subsidised low-income housing in South Africa.

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국내 건설사업관리(CM) 인증자격의 문제점 및 개선방안 - 한국과 미국의 인증자격 비교분석을 중심으로 - (Improvement for the Point at Issue of National Construction Management Professional Certified in Korea - in view of Compararive Analysis for CM Certification of Korea vs US -)

  • 김창교;전재열
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
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    • pp.79-86
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    • 2004
  • 국내 건설산업의 기술자격제도는 노동부주관 $\ulcorner$국가기술자격법$\lrcorner$ 에 의하여 운영되며, 대표적인 국가자격은 건축사, 기술사 및 기사 등을 들 수 있다. 1990년 중반에 도입된 건설사업관리(CM)는 건설산업을 활성화하기 위한 필수불가결의 조건이 되고 있으나 국가자격으로 공인되지 못하고 있으며, 현안문제로서 가장 시급하다고 판단되는 전문인력 양성은 민간 CM교육기관들의 "공인민간자격"으로서 각각의 교육프로그램과 별도의 인증자격을 가지고 이루어지고 있는 실정이다. 문제는 국제공인자격으로서 신뢰성을 확보하고 있는 유일한 미국CM협회(CMAA)의 "CCM"인증자격과 미국VE협회(SAVE)의 "CVS"인증자격의 사례로 볼 때, 외국에 비하여 CM인증자격이 과다하며, 신뢰성과 효율성을 확보하지 못한 상태로 인증자격자득에게 혼란을 주면서 양산되고 있다는 점이다. 본 고에서는 국내CM인증자격의 문제점을 살펴보고 인증자격의 통합 및 체계화를 통하여 국가공인자격으로 발전하기 위한 개선방안을 제시하고자 한다.

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건축물 해체공사 전문인력을 위한 기본역량 분석 - 국내·외 사례를 중심으로 (Analysis of Basic Capabilities for Building Demolition Experts - Focused on Domestic and International Cases)

  • 이경구;신용섭;이형용;전재열
    • 한국건축시공학회지
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    • 제23권6호
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    • pp.841-849
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    • 2023
  • 최근 건축물 해체공사 중 많은 사고가 발생함에 따라 건축물 해체에 대한 관심이 증가하고 있다. 이 연구에서는 국내와 국외의 사례를 통해 건축물 해체공사 전문인력에게 요구되는 기본역량을 분석하였다. 이를 위해 국내의 건축물 해체공사감리교육과 국가직무능력표준(NCS)의 구조물해체 직무의 능력단위에서 요구하는 능력을 조사하였고, 일본, 미국, 영국의 해체 공사 전문인력 자격시험 과목 및 관련 교육내용을 조사하였다. 연구결과, 해체공사 전문인력을 위한 요구역량을 법규, 구조, 안전, 계획, 운영, 시공, 환경의 7가지 분야로 분류하고, 기능직, 기술직, 관리직의 단계별로 분류할 필요성을 제안하였다.

Fuzzy Inference Based Design for Durability of Reinforced Concrete Structure in Chloride-Induced Corrosion Environment

  • Do Jeong-Yun;Song Hun;Soh Yang-Seob
    • 콘크리트학회논문집
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    • 제17권1호
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    • pp.157-166
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    • 2005
  • This article involves architecting prototype-fuzzy expert system for designing the nominal cover thickness by means of fuzzy inference for quantitatively representing the environment affecting factor to reinforced concrete in chloride-induced corrosion environment. In this work, nominal cover thickness to reinforcement in concrete was determined by the sum of minimum cover thickness and tolerance to that defined from skill level, constructability and the significance of member. Several variables defining the quality of concrete and environment affecting factor (EAF) including relative humidity, temperature, cyclic wet and dry, and the distance from coast were treated as fuzzy variables. To qualify EAF the environment conditions of cycle degree of wet-dry, relative humidity, distance from coast and temperature were used as input variables. To determine the nominal cover thickness a qualified EAF, concrete grade, and water-cement ratio were used. The membership functions of each fuzzy variable were generated from the engineering knowledge and intuition based on some references as well as some international codes of practice.

해외건설 수주경쟁력 향상을 위한 ODA (Official Development Assistance) 활용방안 (Strategy for Expansion of Overseas Construction Competitive Power by Official Development Assistance(ODA))

  • 최진욱;김재준;이한승;전낙근
    • 한국건설관리학회논문집
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    • 제8권5호
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    • pp.173-181
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    • 2007
  • 정부의 지속적인 규제 정책으로 인해 국내 건설시장은 위축되어 있는 반면 해외 건설시장은 꾸준한 성장세를 보이고 있고, WTO(World Trade Organization)체제 출범 이후 국제적인 개방화가 가속되고 있다. 따라서 우리나라의 해외건설도 과거의 단순 입찰방식을 지양하고 해외건설 수주경쟁력 확대를 위한 전략 수립이 필요한 실정이다. 본 연구는 해외건설 분야에서 사업초기에서부터 발주처에게 프로젝트의 재원확보 방안을 제시함으로써 수주경쟁력을 증대시키는 것을 연구의 주제로 삼았으며 재원확보 방안으로 양허성(원조성격)을 지닌 공적개발원조(ODA)를 대상으로 하였다. 본 연구에서는 선진국 및 우리나라의 공적개발원조를 분석하고, 관련 분야 전문가를 대상으로 해외건설 및 공적개발원조에 대한 설문조사를 실시하여 현황 및 문제점을 알아보았으며, 이를 바탕으로 우리나라 공적개발원조의 경쟁력을 분석하고 해외건설 수주경쟁력 확대를 위한 전략을 제안하였다.

국내 건설산업 해외 진출을 위한 핵심역량 도출 - 설계 / 시공 역량 차이를 중심으로 - (A Study on Core Competencies to increase Global Competitiveness for the Korean Construction Industry - Focusing on Discrepancies Between Construction and Design Competencies -)

  • 김상범;김용비
    • 대한토목학회논문집
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    • 제33권6호
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    • pp.2529-2539
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    • 2013
  • 국내 건설 및 엔지니어링 산업은 국내 SOC 예산의 감소, 복지에 대한 관심의 증가, 건설산업에 대한 국민적 피로도가 상승함에 따라 많은 어려움을 겪고 있는 상황이다. 반면, IMF 위기를 전후로 주춤하였던 건설산업의 해외진출은 누적수주액 5000억불을 달성하는 괄목할 만한 외형적인 성장을 이루었다. 이러한 어려운 국내 시장상황과 상대적 해외 시장의 활황으로 인하여 많은 건설관련 업체들은 해외 진출을 위한 부단한 노력을 기울이고 있다. 해외건설시장은 외형적인 성장에도 불구하고, 대기업 위주의 진출, 시공/엔지니어링의 불균형, 등 여러가지 문제점을 가지고 있다. 본 연구에서는 이러한 해외건설 진출을 위한 문제점을 해결하기 위해 해외진출에 필요한 실질적인 역량 강화 대안의 도출을 시도하였으며, 특히 시공/엔지니어링 간의 요구역량 차이의 분석을 시도하였다. 본 연구의 목적은 국내 외 거시적 미시적 현황분석 및 문헌조사를 통해 해외 진출을 위한 핵심역량을 도출하는데 있다. 또한, 도출된 핵심역량을 실무자 중심의 설문을 기반으로 역량별 중요도와 현재 보유 역량의 정도를 파악하는 IPA 분석 및 GAP분석을 통하여 해외진출 핵심역량요소에 대한 심층적 분석을 시도하였다. 실무자 설문 분석 결과 우선강화역량 부분에서는 시공 분야와 엔지니어링 분야는 그 우선순위의 차이는 존재하나, 필요한 해외 진출 역량의 종류나 실천과제에 있어서의 확연한 차이를 보이지 않고 있으며 이는 해외시장에서 엔지니어링과 시공사의 업무범위가 점점 넓어지고 있다는 의미로 해석된다. 하지만 중장기 적 역량강화 부분에서는 엔지니어링 분야는 자금조달 및 사업관리 영역에 집중되는 모습을 보여주었고, 시공 분야 기존 기술분야에서 탈피할 수 있는 역량을 강화할 필요가 있는 것으로 분석되었다. 이는 글로벌 해외건설 시장에서의 설계/시공의 업역간의 통합화 움직임을 반증한다고 추정할 수 있을 것이다.