• 제목/요약/키워드: construction practice

검색결과 1,073건 처리시간 0.024초

유전알고리즘에 의한 철근콘크리트 골조의 이산형 구조설계 (Discrete Structural Design of Reinforced Concrete Frame by Genetic Algorithm)

  • Ahn, Jeehyun;Lee, Chadon
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 1999년도 가을 학술발표회 논문집
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    • pp.127-134
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    • 1999
  • An optimization algorithm based on Genetic Algorithm(GA) is developed for discrete optimization of reinforced concrete plane frame by constructing databases. Under multiple loading conditions, discrete optimum sets of reinforcements for both negative and positive moments in beams, their dimensions, column reinforcement, and their column dimensions are found. Construction practice is also implemented by linking columns and beams by group ‘Connectivity’between columns located in the same column line is also considered. It is shown that the developed genetic algorithm was able to reach optimum design for reinforced concrete plane frame construction practice.

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An Unsafe Practice Analysis considering Potential Risk to Foreign Construction Laborers in Korea

  • Shin, Yoonseok
    • 한국건축시공학회지
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    • 제15권4호
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    • pp.441-449
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    • 2015
  • Recently, the number of accidents reported involving foreign laborers has risen, and the need to prevent accidents at construction sites has become more urgent. It has been found that 90 percent of construction accidents are caused by unsafe work practices, and various studies have been conducted on these practices with the aim of preventing accidents at construction sites. However, the tendency with previous studies was to average the results of survey responses, and as a result it is impossible to consider the potential risk of how many foreign laborers feel unsafe in relation with the unsafe practices. Therefore, in this study, importance-performance analysis (IPA) was improved in order to assess the potential risk of the unsafe practices of foreign laborers at construction sites in Korea. To verify the applicability of the improved IPA, a survey was carried out, and then the results were compared with those of the IPA. Through the use of the improved IPA, unsafe practices that were not found in the previous IPA but have potential risk were identified. The method proposed in this study is expected to contribute to the prevention of construction accidents of foreign workers by enabling a more efficient management.

국내의 공공건설 클레임 예방을 위한 계약제도 개선방안 연구 (A Study on the Improvement Contract System of to Prevent Domestic Public Construction Claims)

  • 정민정;조영준
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2007년도 정기학술발표대회 논문집
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    • pp.239-242
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    • 2007
  • 현재 국내건설공사 참여자들은 계약문서의 계약조건에 의해 공사를 수행하기보다는 건설현장에 뿌리내려온 전통적인 관행에 의해 공사를 수행해왔다. 복잡 다양한 건설환경을 고려하여 볼 때, 단지 몇 권의 계약문서만으로 그 모든 분쟁 요소를 해결할 수 없다. 따라서 본 연구는 현 국내의 건설공사의 계약문서인 공사계약일반조건을 고찰하여 불합리를 해결함과 동시에 일반조건의 개선방안 및 계약관리의 효율화 방안을 제시하여 계약관리 및 공사관리의 미숙으로 인한 클레임을 최소화하기위한 방안을 모색하고자 한다. 본 연구결과 국내의 공공건설 클레임과 관련된 문제를 최소화하기 위한 방안을 다음과 같이 제시하였다. (1) 설계변경시기에 대한 명확한 규정이 필요하다. (2) 감리자의 권한을 점차 강화하고, 동시에 책임도 강화해야 한다. (3) 설계감리제도가 계약에 반영되어야 한다. (4) 클레임제기시 그 사유를 분명히 하도록 한다.

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건설공사 품질인증시스템 향상을 위한 품질인프라 및 핵심역량 도출에 관한 연구 (A Study on the construction quality infra and it's core confidency priority for enhancing construction certification system)

  • 이갑순;배영주
    • 대한안전경영과학회지
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    • 제19권4호
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    • pp.189-208
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    • 2017
  • This study is for figuring out major components of construction quality infrastructure and suggesting improvement plan by benchmarking global best practice model and analyzing gap between the model and sample practice. Based on improvement plan, researcher could derive major characters and components of construction quality infrastructure, and also about the priority among core competency components of construction quality experts. The result showed that the 'human resource' was ranked the best priority followed by 'method' 'environment', 'equipment' among major characters and components of construction quality infrastructure. Also, for core competency components of construction quality experts, 'number of years in work places' was the best priority, and the 'professional knowledge on engineering' was another priority ranked. Far from general perception on competency components, 'academic education' ranked the last. It may allude that the current education system in this country is not effective in developing competency of quality engineers. In summary, this study shows professionalism of quality engineer is the most important thing in all the components.

건설공사 진도관리의 현황 분석에 대한 연구 (Analysis of Construction Schedule Progress Management Practice)

  • 신윤경;윤석현;백준홍
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2010년도 춘계 학술논문 발표대회 1부
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    • pp.207-211
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    • 2010
  • As mega-sized and complex building construction projects are increased, the importance of project scheduling and control is emphasized. Project scheduling and control technic is not used widely yet in Korea, but interests in it is progressively increased. By now, most research projects mainly have focused on scheduling issues. Project progress management is also as much important as project scheduling issues. Current state about project progress management in Korea is analysed and way for improvements are suggested in this paper. At first, research projects undergone and practice are analysed and fields experts are survey about current state about project progress management. This study suggests the progress management method for quantitative and qualitative project progress analysis.

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말뚝기초 시공현황 조사와 항타진동측정 (Survey of Pile Foundation Construction Practice in Korea and Ground Vibration induced by Pile Driving)

  • 홍성완;이원제
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 1992년도 봄 학술발표회 논문집 깊은 기초의 연구와 실무(RESEARCH AND PRACTICE OF DEEP FOUNDATIONS)
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    • pp.115-135
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    • 1992
  • 본 연구에서는 말뚝과 관련하여 실무 기술진에게 각종 개념에 대한 이해도를 증진시키며, 국내 설계시공 관련한 제반 문제점을 조사 분석하여 이에 대한 해결 방안을 제시할 뿐 아니라 건설공해로 지칭되는 각종 공해중에서 특히 항타작업에 따라 유발되는 진동과 소음에 대하여 지반조건과 항타 방법에 따른 전파특성을 알아보고 측정 결과와 민원조사 결괄르 통하여 현재의 관리기준을 검토하였다.

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건설안전경영시스템 모델구축에 관한 연구 (A Study on the Establishment of a Safety Management System for Construction Projects)

  • 김두석;이한식;김용수
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2002년도 학술대회지
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    • pp.494-497
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    • 2002
  • 본 연구의 목적은 효과적인 건설안전경영시스템의 구축을 위한 표준모델을 제시하는데 있다. 연구의 진행은 문헌을 통한 이론적 고찰과 기존의 품질 및 환경시스템에 관한 현황조사를 통하여 이루어졌다. 이와 같은 과정을 통하여 도출된 결론을 요약하면 다음과 같다. 기존의 품질 및 환경시스템에 관한 현황조사 결과, 효과적인 건설안전경영시스템의 구축에 있어 성과측정 및 보고시스템 체계의 정립이 필요한 것으로 분석되었다. 따라서 기존 시스템에 대한 보완과 GMP(Good Management Practice)의 적용을 중심으로 한 총 여섯 단계의 사전적 안전경영시스템의 표준모델을 제시하였다.

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Steel Module-to-Concrete Core Connection Methods in High Rise Modular Buildings: A Critical Review

  • Poudel, Bishal;Lee, Seungtaek;Choi, Jin Ouk
    • 국제학술발표논문집
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    • The 9th International Conference on Construction Engineering and Project Management
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    • pp.571-578
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    • 2022
  • Modularization in a high-rise building is different from a small building, as it is exposed to more lateral forces like wind and earthquakes. The integrity, robustness, and overall stability of the modules and their performance is based on the joining techniques and strong structural systems. High lateral stiff construction structures like concrete shear walls and frames, braced steel frames, and steel moment frames are used for the stability of high-rise modular buildings. Similarly, high-rise stick-built buildings have concrete cores and perimeter frames for lateral load strength and stiffness. Methods for general steel-concrete connections are available in many works of literature. However, there are few modular-related papers describing this connection system in modular buildings. This paper aims to review the various research and practice adopted for steel-to-concrete connections in construction and compare the methods between stick-built buildings and modular buildings. The literature review shows that the practice of steel module-to-concrete core connection in high-rise modular buildings is like outrigger beams-to-concrete core connection in stick-built framed buildings. This paper concludes that further studies are needed in developing proper guidelines for a steel module-to-concrete core connection system in high-rise modular buildings.

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KNOTWORKING - A NOVEL BIM-BASED COLLABORATION PRACTICE IN BUILDING DESIGN PROJECTS

  • Hannele Kerosuo;Tarja Maki;Jenni Korpela
    • 국제학술발표논문집
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    • The 5th International Conference on Construction Engineering and Project Management
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    • pp.80-86
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    • 2013
  • Knotworking represents a distributed collaborative expertise in pursuit of a task that is organized among designers from different design disciplines. Construction processes involve phases and tasks that cannot be solved in one organization only, as integration of expert knowledge from various sources is needed. Through knotworking, groups of people, tasks and tools are set to work intensively for a short period of time to solve a problem or accomplish a task. Knotworking requires intensive collaboration across organizational boundaries and hierarchies. The practice of knotworking has been developed and applied in the development of healthcare organizations, libraries and school-university relationships, but it has not previously been applied in the construction industry. In this paper, we describe the concept of knotworking and the findings of a case study that we completed in the Finnish construction industry. We will also compare the similarities and differences of the Big Room and knotworking in terms of participants, duration, target, space/infrastructure, benefits and challenges. Finally, we present some suggestions for further research and experimentation on knotworking in construction projects.

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