• 제목/요약/키워드: fire risk analysis

검색결과 493건 처리시간 0.023초

삼척지역 산불위험지 구분에 따른 감시시설의 위치 적합성에 관한 연구 (Analysis on a Location Compatibility of Forest Fire Detection Facilities according to Classification of Forest Fire Hazard Regions Types in Samcheok Area)

  • 이시영;안상현
    • 한국화재소방학회논문지
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    • 제22권3호
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    • pp.265-271
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    • 2008
  • 본 연구는 강원도 삼척시 지역을 대상으로 산불발생 위험지역과 대형화 위험지역을 분석하고, 현재 삼척시에서 운영하고 있는 산불무인감시카메라 및 산불감시탑의 가시권역을 GIS 중첩분석을 통하여 산불발생위험이 높으면서도 대형 산불로 확대될 위험이 높은 지역을 효과적으로 감시하는지의 여부를 분석하였다. 연구결과 산불위험지역 중 가시권 범위에 들어오는 지역은 13.4% 정도밖에 되지 않았지만, 산불이 주로 낮에 발생하고, 연기가 나기 때문에 조그만 계곡부에서 발생하더라도 감시 할 수 있으므로 감시시설 반경을 4km까지 포함하면 전체면적 중 약 50.3%를 감시할 수 있을 것으로 판단되었다. 그러나 삼척시는 다른 시,군에 비해 넓은 면적의 산림을 가지고 있어 초동진화를 위해서는 감시시설을 추가적으로 설치 운영할 필요가 있다.

화재위험요소의 도출을 위한 대구지역 노후건축지구의 공간특성분석 (Analysis of Spatial Characteristics of Old Building Districts in Daegu to Evaluate Fire Risk Factors)

  • 손병훈;강경하;류정림;노승준
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2021년도 가을 학술논문 발표대회
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    • pp.202-203
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    • 2021
  • The proportion of old buildings over 30 years old increased from 29.0% in 2005 to 37.8% in 2019. These old buildings were created during the absence of building-related safety standards such as fire safety performance. In the process of use, illegal changes and extensions were made, making them more vulnerable to safety. In the 1st Basic Plan for Fire Safety Policy, among the 12-Key Tasks, one is to ensure the safety of residential living spaces. Fire safety investigations are being conducted to prevent large-scale disasters such as multi-use buildings, but no investigation has been conducted at the regional district level where small-scale old buildings are concentrated. Therefore, in order to derive fire risk factors in the old building district where old buildings are concentrated, the composition characteristics of the buildings were first analyzed.

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Numerical Investigation of Residual Strength of Steel Stiffened Panel Exposed to Hydrocarbon Fire

  • Kim, Jeong Hwan;Baeg, Dae Yu;Seo, Jung Kwan
    • 한국해양공학회지
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    • 제35권3호
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    • pp.203-215
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    • 2021
  • Current industrial practices and approaches are simplified and do not describe the actual behavior of plated elements of offshore topside structures for safety design due to fires. Therefore, it is better to make up for the defective methods with integrated fire safety design methods based on fire resistance characteristics such as residual strength capacity. This study numerically investigates the residual strength of steel stiffened panels exposed to hydrocarbon jet fire. A series of nonlinear finite element analyses (FEAs) were carried out with varying probabilistic selected exposures in terms of the jet fire location, side, area, and duration. These were used to assess the effects of exposed fire on the residual strength of a steel stiffened panel on a ship-shaped offshore structure. A probabilistic approach with a feasible fire location was used to determine credible fire scenarios in association with thermal structural responses. Heat transfer analysis was performed to obtain the steel temperature, and then the residual strength was obtained for the credible fire scenarios under compressive axial loading using nonlinear FEA code. The results were used to derive closed-form expressions to predict the residual strength of steel stiffened panels with various exposure to jet fire characteristics. The results could be used to assess the sustainability of structures at risk of exposure to fire accidents in offshore installations.

성능에 기반을 둔 목조건축물 화재안전기준 개선방안 (Improvement of Performance based wooden building National Fire Safety Codes)

  • 오택흠;박찬석
    • 대한안전경영과학회지
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    • 제18권2호
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    • pp.83-92
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    • 2016
  • Because National Fire Safety Codes is mixed performance criteria and specification, and it defines the fire extinguish equipment type and standards that need to be installed in a building as one method. Therefore, to fully reflect the fire risk characteristics of the building, such as the wooden building there is a limit. In this study, suggested to the performance criteria drawn methodologies through fire load of wooden buildings studies, theory on performance and performance analysis to fire extinguish equipment of the wooden buildings is installed according to current fire safety codes.

건축물 건설공사 시 화재안전계획 수립에 관한 연구 (A Study on the Fire Safety Plan for Building Construction)

  • 정명진;이명구;함은구
    • 대한안전경영과학회지
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    • 제14권4호
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    • pp.31-37
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    • 2012
  • Recently buildings are constructed in larger and higher scales and becoming more complex. However from small to large scale buildings and on construction sites there still are fire safety accidents that occur continuously. Therefore to improve fire safety plan, examining the actual fire safety management and understanding fire risk analysis Using Fire Modeling through Computer Simulation. On this study, the permissible evacuation times were estimated for smoke fall, temperature, CO concentration, viability, etc. Fire safety management plans for fire safety were suggested.

수치해석을 이용한 화재감지기 철도터널 화재 감지특성 연구 (Sensing Characteristics of Fire Detectors in Railway Tunnel by Using Numerical Analysis)

  • 박원희
    • 한국산학기술학회논문지
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    • 제16권11호
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    • pp.7964-7970
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    • 2015
  • 터널과 같은 밀폐 공간에서는 화재시 발생하는 열과 연기로 인하여 터널내의 승객들에게 심각한 피해를 입힐 수가 있다. 이러한 피해를 최소화하기 위하여 터널의 화재를 조기감지하기 위하여 화재감지기가 터널에 설치된다. 철도터널의 화재감지기 성능시험 방법 정립을 위한 제한된 규모의 화원에서의 터널 상부 및 측벽에 설치된 화재감지기의 감지특성을 수치해석을 이용하여 분석하였다. 화재영향 수치해석을 위하여 NIST에서 개발한 FDS 프로그램을 사용하였으며, 터널벽의 온도를 현실적으로 계산하기 위하여 터널 외부의 구조를 가정하여 고려하였다. 화원크기에 따른 화재감지기별 화재감지 시간을 터널 위치별로 산출하여 비교 분석하였다.

전통시장지역의 화재위험성 평가를 위한 시뮬레이션 해석에 관한 연구 (A Study on the Analysis of Simulation for Fire Safety Diagnosis in Traditional Market Area)

  • 구인혁;이병흔;권영진
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2017년도 춘계 학술논문 발표대회
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    • pp.46-47
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    • 2017
  • Korea rapidly arranged urbanization and overpopulation with high growth of economy and all kinds of decrepit facilities are scattered all over the downtown. If there is a strong wind in fire, fire is rapidly increased by various fire spread factors. And Korea cannot build prediction model of urban fire combustion phenomena because there is no studies that physically explains the suitable flame phenomena for its real state. In this study, based on the Japanese Urban fire simulation to target the traditional market area and suitability of fire risk assessment were reviewed.

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건축물 밀집지구의 화재위험성 평가를 위한 시뮬레이션 해석에 관한 연구 (A Study on the Analysis of Simulation for Fire Safety Diagnosis in Building Congested Area)

  • 구인혁;윤웅기;김봉찬;권영진
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2013년도 추계 학술논문 발표대회
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    • pp.226-227
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    • 2013
  • Korea rapidly arranged urbanization and overpopulation with high growth of economy and all kinds of decrepit facilities are scattered all over the downtown. If there is a strong wind in fire, fire is rapidly increased by various fire spread factors. And Korea cannot build prediction model of urban fire combustion phenomena because there is no studies that physically explains the suitable flame phenomena for its real state. In this study, based on the Japanese Urban fire simulation to target the building congested Area and suitability of fire risk assessment were reviewed.

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목조건물 밀집 지역의 화재위험성 평가를 위한 시뮬레이션 해석에 관한 연구 (A Study on the Analysis of Simulation for Fire Safety Diagnosis in Wooden Building Congested Area)

  • 구인혁;김봉찬;서동구;권영진
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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    • pp.87-88
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    • 2013
  • Korea rapidly arranged urbanization and overpopulation with high growth of economy and all kinds of decrepit facilities are scattered all over the downtown. If there is a strong wind in fire, fire is rapidly increased by various fire spread factors. And Korea cannot build prediction model of urban fire combustion phenomena because there is no studies that physically explains the suitable flame phenomena for its real state. In this study, based on the Japanese Urban fire simulation to target the wooden building congested Area and suitability of fire risk assessment were reviewed.

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Cancer Perceptions Among Smokeless Tobacco Users: A Qualitative Study of US Firefighters

  • Jitnarin, Nattinee;Poston, Walker S.C.;Jahnke, Sara A.;Haddock, Christopher K.;Kelley, Hannah N.
    • Safety and Health at Work
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    • 제11권3호
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    • pp.284-290
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    • 2020
  • Background: Prevalence rates of smokeless tobacco (SLT) use among firefighters are remarkably high and substantially higher than similar occupational groups and the general U.S. population. The purpose of this study was to explore the perspectives of fire service personnel regarding cancer and its associations with tobacco and SLT use. Methods: This descriptive study used a qualitative approach. Key informant interviews were conducted in 39 career firefighters and fire service administration from across the U.S. Discussion were recorded, transcribed verbatim and transferred to NVivo software for narrative analysis. Topics explored included cancer perceptions, attitudes and beliefs, and cultural factors related to SLT use behaviors. Results: Major themes that emerged among fire service personnel included concerns about cancer and its risk factors including firefighting tasks, such as fire overhaul operations, and from their lifestyle behaviors, such as alcohol and tobacco use. Firefighters also suggested a number of reasons for their increased SLT use, such as fire department tobacco-free policy and fire service culture. Conclusion: The current study provides a rich foundation for future research, prevention, and intervention efforts for the fire service and research communities regarding tobacco and SLT use and cancer risk. Additional research on firefighters' cancer beliefs deserves future research in order to improve messaging about the risks of cancer due to firefighting.