• 제목/요약/키워드: Performance based fire engineering design

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Performance Based Fire Engineering in the UK

  • Plank, Roger
    • 국제초고층학회논문집
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    • 제2권1호
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    • pp.1-9
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    • 2013
  • This paper reviews the recent developments in fire engineering and the design approaches which are being used in the UK, compared with traditional prescriptive solutions. The research background which has underpinned this is briefly summarised, and the benefits of these more advanced methods are discussed. The focus is on structural fire engineering, but some consideration of modelling fires is also included. Some of the more commonly used design tools are discussed, together with the relative benefits they offer. The use of these more advanced approaches is then outlined in the context of which building types might be most suitable, and a number of case studies are included to illustrate this. Likely future developments are also discussed.

하중비에 따른 강재 보의 한계온도에 관한 실험적 연구 (Experimental Study on Limiting Temperatures of Structural Beams made with Structural Steel According to Load Ratios)

  • 권인규
    • 한국강구조학회 논문집
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    • 제22권6호
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    • pp.581-588
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    • 2010
  • 최근 강구조 건축물에 대한 상온 및 화재 시의 구조거동에 관한 요구사항이 증대되는 추세에 있으며, 내화구조에 관한 요구조건을 충족시키기 위해서는 내화설계가 요구된다. 내화설계에는 법규, 기준 등에 따라 평가되는 시방적 내화설계와 화재 발생 시 구조물 거동을 평가하는 성능기반 공학적 내화설계로 대별된다. 현재 성능기반 공학적 내화설계는 세계적인 추세로 활발히 적용되고 있으나, 국내에서는 아직 적용되지 못하는 실정이다. 따라서 본 논문에서는 성능 기반 공학적 내화설계의 지침 마련의 기반자료 확보를 위하여 H-형강 보부재와 H형강의 웨브에 콘크리트로 충전된 보부재를 대상으로 한계온도 설정을 목적으로 한다. 재하가열시험을 통하여 H-형강 보부재의 한계온도를 도출하였고, 한계온도는 적용 하중비에 좌우되는 것을 확인하였다. H-형강 웨브에 콘크리트가 충전된 하중비 80%, 60% 및 50%의 시험체는 모두 3시간의 내화성능을 보였다.

대규모 실내경기장의 성능위주 방재계획에 관한 연구 (A Study on Perfomance Based Evacuation Plan for a Large Indoor-Arena)

  • 최용석;김형근;이규일
    • 설비공학논문집
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    • 제23권10호
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    • pp.687-698
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    • 2011
  • In this study, it was analyzed by a numerical analysis that plan/design considerations for ensuring the spectator safety of large arena audiences in a fire emergency evacuation plan. The latest issue, the 'performance-based design', fire and evacuation plan is important. But nowadays 'Specification-based design' is in common. In evacuation simulation, congestion of exit and aisle is ignored because only evacuation time of large-space is mainly analyzed. In smoke flow,'smoke filling effect' tends to be overrated. From now on, when design a field house, it is needed not 'smoke filling effect' and 'large-space evacuation' analysis, but analyzing 'whole building evacuation time' for ensuring fire evacuation safety of spectator.

성능위주설계 시행의 개선방안 (A Study on Performance-Based Design Enforcement)

  • 이양주;고경찬;박외철
    • 한국화재소방학회논문지
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    • 제26권1호
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    • pp.68-73
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    • 2012
  • 대규모 고층건축물에 대한 화재 및 피난 안전성을 강화하기 위해 2011년 7월 1일부터 성능위주설계가 시행되고 있다. 시행초기에 여러 가지 시행착오가 발생할 것으로 예상됨에 따라 본 연구에서는 성능위주 설계의 시행에 따른 문제점을 조사하고 개선방안을 제시하기 위해 관련 규정을 검토하고 소방전문가를 대상으로 설문조사를 실시하였다. 성능위주설계 대상에 일정규모 이상의 아파트와 주상복합건축물이 포함되어야 하며, 성능위주설계의 방법과 평가에 대한 명확한 기준 설정, 설계자 및 평가자에 대한 성능위주설계 관련 교육이 필요함을 확인하였다.

전산수치해석 기반 화재훈련 VR 시뮬레이터의 개발 (A Development of Fire Training Simulator Based on Computational Fluid Dynamics Simulation)

  • 차무현;이재경;박성환;최병일
    • 한국CDE학회논문집
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    • 제14권4호
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    • pp.271-280
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    • 2009
  • An experience based training system concerning various fire situations which may result many casualties has been required to make rapid decision and improve the responsiveness. Recently, the necessity of virtual reality (VR) based training system which can replace a dangerous full-scale fire training and be easily adopted to the training or evaluation process is increasing. This study constructed tile virtual environment according to pre-defined scenarios, utilized the FDS(Fire Dynamics Simulator), three dimensional computational fire analysis program, to derive numerically simulated data on the propagation of fire. Finally, by visualizing the realistic fire and smoke behavior through virtual reality technique and implementing real-time interaction, we developed a VR-based fire training simulator. Also, in order to ensure the sense for tile real of a virtual world and reaI-time performance at the same time, we proposed appropriate data processing and space search algorithms, demonstrate d the value of proposed method through experiments.

APPLICATION OF FIRE RESEARCH TO BUILDING FIRE SAFETY DESIGN - CURRENT BENEFITS AND FUTURE NEEDS

  • Bressington, Peter;Johnson, Peter
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 1997년도 International Symposium on Fire Science and Technology
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    • pp.392-403
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    • 1997
  • There is a strong international move towards performance based fire regulations for buildings with New Zealand and Australia at the forefront of research in this fold. The reform of regulations is thought to offer more innovation and flexibility in building design and greater cost effectiveness in construction. An important part of the research in this area is related to the development of agreed approaches to fire safety design, such as the Fire Code Reform Centre's "Fire Engineering Guidelines" or New Zealand's "Fire Engineering Design Guide". Such design process documents have incorporated or referenced much of the latest research in areas such as: tenability criteria fire compartment models egress models risk assessment. Use of such design guidelines or equivalents in major projects in countries such as Hong Kong and Australia have highlighted where fro engineering can offer real benefits to building designers and ultimately building owners and operators. However, there is still much research to be done and use of a systematic, logical design approach clearly identifies where design data or modelling techniques are still urgently required. Such areas are: fire growth rates and peak heat release rates for non-residential occupancies pre-movement times related to egress experimental validation and limits of applicability of CFD and other compartment Ire models probability/reliability data on fire protection systems for risk based analysis. Examples from case studies will be shown where lack of such research and poor judgement can lead to inferior design solutions or where unnecessarily conservative designs can lead to cost excesses. In summary, the link between Ire engineering designers and the research community is very important to highlight areas of fire research that will have the most benefit to the building and construction industry.nstruction industry.

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성능위주설계를 위한 가연물의 열발생률 및 화재성장률 측정 - 판매시설의 플라스틱 화재를 중심으로 - (Measurements of the Heat Release Rate and Fire Growth Rate of Combustibles for the Performance-Based Design - Focusing on the Plastic Fire of Commercial Building)

  • 장효연;남동군
    • 한국화재소방학회논문지
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    • 제32권6호
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    • pp.55-62
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    • 2018
  • 국내 성능위주소방설계(PBD)에 신뢰성이 향상된 예측결과를 기여하고자 판매시설 가연물 중 플라스틱으로만 이루어진 제품을 대상으로 실규모 화재실험이 수행되었다. 이때 판매시설의 경우 다양한 가연성 물질이 진열된 판매대의 간섭 또는 상품 적재 등으로 인한 화재확산의 검토를 위하여 단일 및 다수가연물로 분리되어 실험조건이 선정되었다. 이에 따라 최대 열 발생률에 따른 가연물의 노출 면적 및 중량은 대략 93%와 89%의 매우 선형적인 관계를 확인할 수 있다. 또한 다양한 가연물에 대한 가스농도의 분석 결과 이산화탄소($CO_2$)는 최대 열 발생률에 대하여 선형적인 관계를 나타내는 반면 일산화탄소(CO)는 지수함수의 형태를 나타낸다. 이러한 결과는 판매시설에서 발생되는 플라스틱 화재의 PBD에 신뢰성있는 화원정보로서 적용될 수 있다. 추후 실제 판매시설에서 적용되는 진열대의 면적이 적용된 추가적인 실험을 통하여 판매시설의 플라스틱 화재에 대표되는 화원 정보로서 적용할 수 있을 것이라 기대된다.

축력비 조건에 따른 철근콘크리트기둥의 내화성능에 관한 연구 (A Study on the Fire Resistance Performance of Reinforced Concrete Columns according to Axial Load Ratio)

  • 황규재;조범연;여인환
    • 한국화재소방학회논문지
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    • 제27권6호
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    • pp.26-31
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    • 2013
  • 본 연구의 목적은 성능적 내화설계를 기반으로 한 철근콘크리트 기둥의 내화성능 평가를 최종 목표로 철근콘크리트 기둥의 열전달 해석을 통한 온도분포와 재하가열실험을 통한 수축량으로 적정 축력비를 도출하여 성능설계를 위한 기초 자료로 활용하고자 하는데 있다. 편심이 전혀 없는 순수축력을 기준으로 축력비 0.30, 0.35, 0.40, 0.47을 재하한 결과, 0.40 이상의 축력비를 확보하여야 내화성능을 만족할 수 있다고 판단하였다.

발전설비용 소화시스템의 성능 예측을 위한 CFD기법 적용 연구 (Application of CFD Method to Performance Prediction of Fire-Suppression System for Electric Power Utilities)

  • 정희택;배강열;김찬희;정인수;배진수;한용식;김종진
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 2008년도 춘계학술대회논문집
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    • pp.296-299
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    • 2008
  • In the present research, the exclusive analysis system based on the CFD method were suggested to predict the fire-suppression performance of water mist fire-suppression equipments for design applications. The computing scope is ranged from starting pump to fire-suppression equipments, composed of three parts that calculation of flow rate and pressure distribution at each nozzle, examining of spray performance and predicting of fire-suppression performance in the fire space. Application were done to the fire-suppression system for electric power generation plants. The results were analyzed by comparison between numerical results and initial design conditions in terms of thermal and fluid mechanics.

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Parametric Study on Water Mist Nozzles for Fire Suppression System Based on CFD Methods

  • Jung, In-Su;Park, Tae-Gyu;Chung, Hee-Taeg
    • 한국분무공학회지
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    • 제15권3호
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    • pp.124-130
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    • 2010
  • Numerical simulation has been performed to investigate the mist flow characteristics through the fire suppression nozzles for the design purposes. The commercial softwares, FLUENT and the fire dynamic simulator, FDS with the proper modelings were chosen as the numerical tools. In order to find optimal conditions in sense of the main performances of nozzles, the spray characteristics were analyzed both inside and outside of the nozzles. Geometric factors of the injecting orifices, i.e., diameter and chamfered angle were chosen as the simulation parameters for design application. From the present numerical results, 1.0c nozzles, whose orifice-diameter was 1 mm, having the chamfered angles were shown as the best performance of the fire suppression.