• 제목/요약/키워드: Construction Efficiency

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IMF 극복을 위한 기업의 CALS/EC 구축방안 (CALS/EC Construction for Corporate Restructuring)

  • Lee, Jang-Gyoon
    • 한국전자거래학회:학술대회논문집
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    • 한국전자거래학회 1998년도 학술대회지 vol.1
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    • pp.27-43
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    • 1998
  • 현재, 우리 기업들에게 위기를 극복하기 위한 새로운 경영 시스템의 구축이 요청된다. 본고에서는 그 대안으로 가치 창출 시스템을 제시하였다. 그리고 가치 창출 시스템의 핵심 구성 요소인 시장 효율성, 자본 효율성, 인재 효율성, 운영 효율성을 달성하는 전략적 대안으로서 CALS를 제시하였다. 우리 기업은 CALS 구축을 추진하여 정보 기술과 경영 기술들을 융화하여 조직간 협력기반 형태로 사업하는 새로운 사업 모델을 창출하고, 그 과정에서 창출된 지식과 경험을 통해 자사내에 경쟁력 있는 경영 시스템을 재 구축해야 한다. 서로 다른 기업간에 협력적 기반하에 업무를 수행한 경험이 거의 없는 배타적 문화가 강한 현재 우리 기업의 여건상 CALS를 구축하는 데에는 전략적인 접근 방안이 필요하다. 그 방안으로 수직 통합화의 추구, CALS 추진 핵심 팀의 조직화, 제품과 프로세스의 동시 개발, 최고 경영자의 비전ㆍ전략 개발과 참여 구성원의 교육ㆍ훈련 실시가 필요하다.

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초고층 건축공사 고강도 콘크리트 골조의 내화 및 폭렬 방지성능 중요도 선정 (Decision of the priority of Fire Endurance and Spatting Prevention Efficiency in High Strength Concrete at High Rise Building Work)

  • 백대현;한민철;한천구
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2008년도 정기학술발표대회 논문집
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    • pp.804-807
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    • 2008
  • 최근 건축 구조물의 초고층화 대형화로 인해 고강도화 되는 콘크리트는 치밀한 조직으로 인해 화재시 폭렬에 취약하고, 내화성이 저하되는 문제점을 지니고 있다. 이로 인해 국내에서도 내화의 문제점을 인식하고 방안제도를 마련하고 있으며, 많은 연구진에 의해 고강도 콘크리트의 내화공법이 소개되고 있다. 이에 본 연구에서는 고강도 콘크리트의 내화공법 선정시 중요도를 관련 전문가의 설문조사를 기반으로 AHP 기법을 이용하여 분석하였다. 설문조사를 통한 분석 결과 상위 평가항목의 화재성능과 상시성능 중 내화공법 선정시에는 화재성능이 가장 중요시되는 것으로 나타났다. 화재성능에 대한 하위 항목에서는 인명보호가 중요한 요소로 산정되었고, 인명보호에 대한 하위 항목에서의 설문분석 결과 유해가스 발생억제가 중요한 요소로 산정되었다.

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농촌주택 개량을 위한 난방 효율 시험 (The Experiment on The Efficiency of Heating System for Improving Farm Houses)

  • 이회만;최예환
    • 한국농공학회지
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    • 제16권2호
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    • pp.3395-3409
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    • 1974
  • The purpose of this study is to test and compare the efficiency of heating-system for materials and construction of the wall, ceiling and window in soil brick house, cement house and boulder house respectively, in order to construct ideal farm houses in rural area. The results obtained were as follows: 1. In heat conservation due to construction of walls the thermal efficiency of cement brick house was equivalent to 66.3% of that of soil brick house, and boulder house 60.3% 2. In the case of ceiling, the thermal efficiency of paper ceiling was amounted to 84.2% of that of the composite ceiling (thickness 6mm veneer+thickness. l0m chaffs), and the common ceiling putting on soil above the ceiling, 76% of the composite while the efficiency of the ceiling putting on chaffs above them was 15.8% higher than that of the paper. 3. In the case of improving the window, the double type was 12% higher than. the efficiency of single type. 4. The warming velocity of conventional house was slower but the velocity of radiation was quicker than that of experimental one. It was thought to be due to unscietific constructions of the room bottom, fire inlet and chimney, 5. The temperature gradient line was not dependad upon the amount of throwing into fuel in the rural farm house. 6. It was concluded that the final thermal efficiency of the conventional farm house was 10.6% lower than that of experimental farm house.

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The Evolution of Seismic Engineering and Design of Ultra Tall Buildings in China Innovations and Sustainability

  • Wang, Aaron J.
    • 국제초고층학회논문집
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    • 제5권3호
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    • pp.221-232
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    • 2016
  • With the booming of construction and property industries in China, the demand for high-rises and mega-scale buildings with more integrated building functions, open- and tailor-shaped outlooks, better connections to municipal infrastructures, and higher grades of building importance has been increasing in the past two decades. The seismic design and engineering of such modern mega-buildings face engineering challenges such as hazard mitigation of extreme actions and surroundings, integrated structural frameworks and building skins, complex connections, and overall construction efficiency. It is the work of a new generation of civil and structural engineers to enhance engineering efficiency and achieve overall engineering, environmental, and economical effectiveness for these high-rise projects. This paper elaborates the above topics through case studies on the design and construction of four such developments in China. Some rethinking is conducted on evolution in modern seismic engineering and design through innovation to achieve an acceptable level of overall sustainability and building effectiveness.

실시설계단계 효율성 향상을 위한 저해요소 분석 - 'ㅇㅇ동 문화 및 집회시설' 사례를 중심으로 - (A study on the hindrance factors for improving efficiency of the working design)

  • 김성식;박정로;김주형;김재준
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2011년도 추계 학술논문 발표대회
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    • pp.129-130
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    • 2011
  • 2009 Presidential Council on National Competitiveness to plan trying to the advancement in the construction industry 'design and engineering of the global competitiveness' in the content of weak points of the design and engineering capabilities to secure the overall problem. In domestic technological of design and engineering behind the other building construction sector about 70%. Especially hindrance factor was founded between design ordering organization, design firm and subcontractor in working design stage. In this paper carried out to hindrance factor that decrease the efficiency in working design stage for a strategy to improve the utilization of basic data.

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커튼월 물류 관리 효율화를 위한 SOA 적용 모델 개발 방향 제시 (A Study on a SOA-based Application Model for Curtain Wall Supply Chain Management efficiency)

  • 안치선;황경훈;윤수원;진상윤
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2011년도 춘계 학술논문 발표대회 1부
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    • pp.141-143
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    • 2011
  • A Study on the Curtain Wall parts that appear to cause problems and to improve information exchange system by applying the model of SOA-based development directions are suggested. Availability of the IT industry than other industries that have closed in the field of construction such as SOA. IT systems for the compatibility of the information being sought may be applied. In the future adoption of SOA and Web service-based approach to information exchange with suppliers and improving the efficiency of information for the construction to cover the entire field of research will be conducted as a SOA system.

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고층건물 외벽 유지보수 건설로봇 시스템 개발을 위한 청소공정 작업절차 분석 (Facade Cleaning Process Analysis For Construction Robot System Design of High-rise Building External wall Maintenance)

  • 김대건;김복규
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2011년도 춘계 학술논문 발표대회 2부
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    • pp.77-79
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    • 2011
  • As residents and building owners demand maintenance that is required to achieve sustainable building performance, efficient building management methods are required. Even though the demand for maintenance systems is increasing, current maintenance work for high-rise buildings mostly uses conventional ropes and gondolas that pose a high risk of accidents and exhibit poor performance and efficiency. Thus, there is an urgent need to develop an automation robot system that can reduce accidents and improve the maintenance efficiency of the conventional high-rise building façade maintenance system. As a preceding work for the development of an automation robot system, this study classified and analyzed the work processes of actual construction sites and proposed basic techniques for the work mechanisms of the robot system by investigating the motions of cleaning workers.

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Automated Methodology for Linking BIM Objects with Cost and Schedule Information by utilizing Geometry Breakdown Structure (GBS)

  • Lee, Kwangjin;Jung, Youngsoo
    • 국제학술발표논문집
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    • The 6th International Conference on Construction Engineering and Project Management
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    • pp.637-638
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    • 2015
  • There has been growing interests in life-cycle project management in the construction industry. A lot of attention is given to Building Information Modeling (BIM) which stores and uses a variety of construction information for the life cycle of project management. However, due to the additional workload arising from BIM, its expected effects versus its input costs are still under discussion in practice. As an attempt to address this issue, one of previous studies suggested an automated linking process by developing Standard Classification Numbering System (SCNS) and Geometry Breakdown Structure (GBS) to enhance the efficiency of integration process of BIM objects, cost, and schedule. Though SCNS and GBS facilitates identifying all different dataset, making object sets and linking schedule activities still needs to be manually done without having an automated tool. In this context, the purpose of this paper is to develop and validate a fully automated integration system for 3D-objects, cost, and schedule. A prototype system for single family homes (Hanok) was developed and tested in order to verify its efficiency.

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세미 오픈컷 역타공법의 현장적용에 관한 연구 (Study on the Application of Semi-open cut Top-Down Construction for Framework)

  • 소광호
    • 한국공간구조학회논문집
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    • 제11권2호
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    • pp.129-138
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    • 2011
  • 지하공사는 상부층의 구조물과 연계된 시공순서에 따라 Bottom-Up공법, Up-Up공법 그리고 Top-Down 공법으로 대별할 수 있다. 탑다운 공법을 사용하면 건물의 본구조를 흙막이지보공으로 이용하면서 상층에서 하층으로 굴착과 구체구축을 반복하여 시공함으로써 인접구조물이나 주변 지반의 변위를 극소화 시킬 수 있다. 이는 토류벽의 안정성이 높으며, 각층의 바닥슬래브를 작업공간으로 사용하여 도심지 공사에서 작업장 확보가 용이하다. 그러나 굴토작업이 슬래브 하부에서 진행되므로 작업 능률 및 작업환경이 저하되고, 어스앵커 공법보다 경제성이 없다는 이유로 다소 회피하는 경우가 종종있다. 따라서 본 논문에서는 터파기 공사는 세미오픈컷 공법을 적용하고 흙막이 공법에는 지하연속벽(슬러리월)을 그리고 지보공으로는 C.W.S공법을 적용한 역타공법으로 대상현장을 중심으로 기존 역타공법과 경제성, 공사기간 및 작업성 등을 분석 제시하였다. 토사운반 및 철골설치공사 작업의 용이성과 PRD 공사의 정밀도 향상 등의 품질관리가 우수하며, 공기단축이 가능하였다.

전자산업의 서비스부품에 대한 국제로지스틱스 연구

  • 김태현
    • 한국유통학회지:유통연구
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    • 제1권2호
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    • pp.141-172
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    • 1996
  • This study is to investigate global logistics strategies of Korean electronics companies. in terms of service parts. According to the survey, Korean electronics companies were pursuing multi-level global logistics network such as global, continental, national, regional and service center echelon for improving the efficiency of service parts global logistics. Especially there was a tendency of developing new continental distribution centers. And the companies were exploiting efficiency through inventory control by multi-level echelon, demand forecasting by the product life cycle and supply and service lead time management. But there were some insufficient factors for the efficiency of global logistics operation at the construction of worldwide real time logistics information system and pursuit of the efficiency on the whole network including subcontractors. For the future competitive advantage of the Korean electronics companies, the following are suggested: 1) the establishment of arranged logistics channel adjusting each company's global strategy, 2) the construction of worldwide real time logistics information system, 3) the reengineering of all logistics procedures such as order processing, shipping, inventory control, etc., 4) the enhancement of the ratio of the supply from the external companies and the internal manufacturing subsidiaries at each continent, 5) and the pursuit of operational internalization of external subcontractors.

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