• Title/Summary/Keyword: 비계 시스템

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Enhanced Quality and Safety by Expanding Field Application of System Scaffolding (시스템비계의 현장적용 확대 연구로 품질 및 안전제고)

  • Jung, woo-don
    • Proceedings of the Korean Society of Disaster Information Conference
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    • 2022.10a
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    • pp.231-232
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    • 2022
  • 건설 현장이나 일반 제조업 현장은 작업자의 고소 위치에서의 작업시, 필요한 특정 장소로의 접근을 위한 임시 구조물을 설치하는데 이를 가설비계라고 한다. 이러한 가설비계는 작업자의 안전 통행과 작업을 위한 받침대 역할, 장비나 공구, 자재를 임시 적치하기 위한 장소로 활용되는데 일반 건축물과 중후장대한 조선소 블록 제작등에 필수적으로 사용된다. 하지만 가설설비라는 특성으로 비계와 관련된 연구가 부진하고 사업적으로 참여하는 사업주 또한 진출을 가볍게 생각하고 있으며 해당 공사에 임하는 작업자의 산업으로의 진입문턱도 낮은 등으로 시공 품질이 떨어질 우려가 매우 높다. 또한 설치후에는 품질검사가 어려워 작업자의 숙련도나 진정성 등에 의한 주관적 작업 결과물이 설치된 시설물을 사용하는 주변 작업자에게는 불안전 요인이 되기도 한다. 이에 작업자의 숙련도나 주관적 판단에 의한 가설 구조물 설치를 회피하여 안전성을 높이기 위한 방안이 연구되어 왔는데 이것이 시스템비계이다. 이러한 시스템비계에 대한 사용성을 확대하기 위해 국토교통부와 고용노동부등의 정부기관에서는 여러 가지 제약과 동시에 장려정책을 제시하고 있으나 공적 발주나 일부 대기업그룹 외의 중소 현장에는 그 확산 속도가 높지않은 편이다.

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A Study on Wire-rope Type Furnace Scaffolding and Its Lifting System for Large-sized Boiler (대형 보일러 와이어로프 노내비계 및 인양시스템에 관한 연구)

  • HA, Seung Woo;Lee, Tae Ho;Lee, Hae Seung;Kim, Jeung Min;You, Tai Woo;Cho, Sun Young
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.40 no.7
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    • pp.679-683
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    • 2016
  • Boilers of large-sized coal-fired power plants are being operated under very poor conditions such as continuous operation or repeating of start-up and shutdown for a stable supply of electricity. Thus periodic inspection and maintenance are required to ensure reliability of operation. The loads of existing scaffolding systems for the maintenance of boilers are concentrated in the lower parts structurally, which may cause a serial collapse of the overall scaffolding system when there are problems in some members. Therefore, in this study, a safe furnace scaffolding system is developed by dispersing the loads in the upper part, as well as minimizing the hazards of serial collapsing. In addition, for cases where the direct installation of furnace scaffolding is challenging owing to the structure of the boiler tube, a lifting system for the installation of furnace scaffolding is developed so that furnace scaffolding can be supported to secure the integrity of the power generating facility.

Determination of Efficient Shoring System in RC Frame Structures Considering Time-Dependent Behavior of Concrete (시간의존적 거동을 고려한 철근콘크리트 골조의 효율적인 지지시스템 결정)

  • 김진국;홍수미;곽효경
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.17 no.3
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    • pp.225-239
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    • 2004
  • In this paper, systematic analyses for the shoring systems installed to support applied loads during construction are performed on the basis of the numerical approach introduced in the previous study. Structural behaviors require changes in design variables such as types of shoring systems, shore stiffness and shore spacing. In this paper, the design variable are analyzed and discussed. The time dependent deformations of concrete and construction sequences of frame structures are also taken into account to minimize structural instability and to improve design of shoring system, because those effects may increase axial forces delivered to shores. From many parametric studies, it can be recommended that the most effective shoring system is 2SlR(two shores and one reshore)

Enhanced Quality and Safety by Expanding Field Application of System Scaffolding (Based on the Shipbuilding and Plant Industry Sites) (시스템비계의 현장적용 확대 연구로 품질 및 안전제고 (조선 및 플랜트산업 현장을 기준으로))

  • Woo-Don Jung
    • Journal of the Society of Disaster Information
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    • v.19 no.1
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    • pp.128-137
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    • 2023
  • Purpose: This study proposes a way to improve quality and increase safety by studying a method that allows the system scaffolding, which is partly used for high-altitude work at construction sites, to be applied to various types of structures in shipbuilding and plant industry sites. Method: A fact-finding survey was conducted targeting 8 companies, and a plan was established that reflected the opinions of the field survey and the practitioners and experts by analyzing the literature and the Internet survey. Result: Through analysis of related patents, FGI with companies, etc., we discovered the possibility of application expansion through research and development of materials that can be applied to various types and improvement plans for enhancing the professionalism of construction companies. Conclusion: System scaffolding has a high importance in terms of safety, but related research around the world is sluggish. Therefore, it will be possible to meet the demands for quality and safety by enhancing the software expertise and developing and researching user materials that can be applied to various types.

Steel Frame Clamp Deformation and Performance Check based on Clamping Orientation (철골용 클램프 시공방향에 따른 변형 및 성능확인)

  • Mo, Seung-Un;Lim, Nam-Gi
    • Journal of the Korea Institute of Building Construction
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    • v.22 no.2
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    • pp.161-169
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    • 2022
  • The government [3] specifies steel pipe scaffolding as conventional scaffolding and is promoting the installation of system scaffolding, an integrated work platform, and avoidance of the use of steel pipe scaffolding as much as possible. However, in places where equipment cannot enter, such as power plants and plant sites, places the structure is complex, and places where scaffolding cannot be stacked on the ground, there is no choice but to install steel pipe scaffolding. When installing steel pipe scaffolding on an H-beam structure at a high place, the performance of the steel frame clamp is very important in order to form a work space which workers can work safely. In this study, the displacement magnitude and tensile load of members in each installation direction of the clamp for steel frame were verified through performance tests and structural analysis modeling. As a result, it was confirmed that the performance for each installation direction satisfies the safety certification standard tensile load of 10,000N. Although the performance value is satisfactory, deformation of the attachment pressing bolt was verified and was confirmed to have minimal deformation. Thus, to ensure the load is properly to the attachment body, the clamp for a steel frame must be installed in the direction in which the load is transmitted.

Structural and Vibrational Characteristics for the Scaffolding System of LNG Cargo Containment (LNG 화물창 비계 시스템의 구조해석 및 진동 특성)

  • Ryu, B.J.;Shin, G.B.;Nahm, Y.E.;Oh, B.J.;Baek, S.G.;Kim, H.S.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2007.11a
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    • pp.1197-1202
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    • 2007
  • The paper deals with the structural analysis and vibration test for the scaffolding system of LNG cargo containment. The eight-stories scaffolding system has telescopic area, working area, coner area and storage area in real system. In the structural analysis, the maximum displacement and stress of the each floor for the scaffolding system are investigated by finite element method. In the vibrational analysis, the natural frequencies and mode shapes for 8-stories scaffolding system of the LNG cargo containment are investigated. In order to compare theoretical natural frequencies with experimental ones, small size of 2-step scaffolding structure is used, and the theoretical results for natural frequency have a good agreement with experimental ones.

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Structural and Vibration Characteristics for the Scaffolding System of LNG Cargo Containment (LNG 화물창 비계 시스템의 구조해석 및 진동 특성)

  • Oh, B.J.;Ryu, B.J.;Lee, Y.S.
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.20 no.6
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    • pp.546-554
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    • 2010
  • The paper deals with the structural analysis and vibration test for the scaffolding system of LNG cargo containment. The eight-stories scaffolding system has telescopic area, working area, coner area and storage area in real system. In the structural analysis, the maximum displacement and stress of the each floor for the scaffolding system are investigated by finite element method. In the vibrational analysis, the natural frequencies and mode shapes for 8-stories scaffolding system of the LNG cargo containment are investigated. In order to compare theoretical natural frequencies with experimental ones, small size of 2-step scaffolding structure is used, and the theoretical results for natural frequency have a good agreement with experimental ones.

인물탐방 -정춘병 (주)이산 부사장

  • 한국기술사회
    • Journal of the Korean Professional Engineers Association
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    • v.44 no.1
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    • pp.10-11
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    • 2011
  • (주)이산은 각 분야별 전문지식과 경험을 축적한 기술진이 최신의 전산시스템, 공학적 전문프로그램으로 사업특성에 맞는 최적의 엔지니어링 서비스를 제공하고 있는 기업이다. 건축전기설비계의 대가인 (주)이산 정춘병 환경플랜트부 부사장을 만나 그의 삶과 리더십에 대해 들어본다.

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