• Title/Summary/Keyword: Fire Trends

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Analyses of the Outbreaking Fires according to the Industrialization in Korea (산업화에 따른 한국의 화재발생 추이 분석)

  • Kim, H.B.;Lee, J.I.;Keon, H.S.;Choi, D.M.
    • Journal of Korean Institute of Fire Investigation
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    • v.11 no.1
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    • pp.127-137
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    • 2007
  • In our country, a number of fire outbreaking had been increased suddenly for 20 years from beginning of 1980's to 2001. That was related with the focus of economic policy, the rapid increasing of fire fighting objects, the change of life environment, and the increasement of usage of energy. Accordingly, we tried to enforce the function of feedback effect of fire prevention policies with analysing the trends of fire occurring from 1950's to 2006 and the correct statistical analysis.

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A Study on the Structural Fire Resistance Performance Design of RC Structural according to the Explosive Spalling(I) - The Countermeasures of General Construction Company - (폭렬현상을 고려한 RC구조물의 PBD기반 구조내화설계 기술개발에 관한 연구(I) - 국내외 주요 건설사의 대응방안 -)

  • Lee, Jae-Young;Kim, Se-Jong;Kwon, Young-Jin
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2008.11a
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    • pp.195-201
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    • 2008
  • When reinforced concrete is subjected to high temperature as in fire, there is deterioration in its properties of particular importance are loss in compressive strength, cracking and spalling of concrete, destruction of the bond between the cement paste and the aggregates and the gradual deterioration of the hardend cement paste. Assessment of fire-damaged concrete usually starts with visual observation of color change, cracking and spalling of the surface. In this paper, it was reported the trends of research and practical use on the Explosive Spalling Properties of the High-Strength Concrete.

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Experimental study on the combustion characteristics of titanium alloy (티타늄 합금 폐기물의 연소 특성에 관한 실험적 연구)

  • Lee, Jun-Sik;Nam, Ki-Hun
    • Journal of the Korean Society of Industry Convergence
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    • v.22 no.2
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    • pp.105-110
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    • 2019
  • Most titanium alloy waste with cutting oil was discarded without recycling process so that it can be caused by metal and oil fires. However, there is no fire management system and studies on the titanium or titanium alloy waste in spite of high fire risk. The purpose of this experimental study is to identify the fire risk of the titanium alloy waste with cutting oil. We collected the 120g waste which was made in the biomedical titanium alloy cutting process. The waste was burned and conducted thermal image analysis with infrared camera. The experimental results which illustrated the process, characteristics, and trends of fire are presented. Firstly, the cutting oil was burned and partially the titanium alloy waste was burned. The maximum temperature of the fire was more than $650^{\circ}C$ in some specific spots. These results means when a lot of titanium alloy waste with cutting oil was ignited, this fire could connect the titanium fire. In other words, the fire has a flammable liquid fire and combustible metal fire at the same time. The experimental study could be used fire prevention, response, and investigation of the titanium alloy waste.

A Study on the Trends of Research and Application of FDS in the Overseas Country (국외 FDS 연구동향 및 적용사례 분석)

  • Lee, Rang;Kim, Ding-Eun;Kim, Bong-Chan;Lee, Jae-Won;Kwon, Young-Jin
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2011.11a
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    • pp.19-22
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    • 2011
  • 최근 국내의 경우 FDS를 이용한 성능설계, 화재영향평가 및 피난안전성평가와 더불어 화재조사분야에 이르기까지 다양한 분야에서 활발하게 사용되고 있는 반면 FDS의 소스코드의 분석 및 검증등과 관련한 연구는 매우 미비하며 그결과 또한 구체적인 문제점제시보다는 FDS를 활용하여 실험결과와를 대비하는 수준에 머물러 있는 상황이다. 따라서 본연구는 FDS의 검증을 위한 외국사례를 조사분석하여 향후 국내에서 FDS의 활용시에 대한 주의점 및 향후 한국에서의 활용을 위한 개선방안을 도출한 것이다.

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The Impact of Building Types on Fire Damage by Month

  • Yi, Kyoo-Jin
    • Journal of the Korea Institute of Building Construction
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    • v.19 no.6
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    • pp.567-575
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    • 2019
  • Statistics show that while the number of fires has decreased over the last decade, losses of human life and economic property due to fire have increased. Moreover, the number of large-scale fires that have occurred in recent years has resulted in heightened public anxiety. This study aims to identify a specific period of the year most vulnerable to fire, and fire trends, such as damage of fire to humans, to the economy, and different building types. For this purpose, we analyzed human and economic damages using statistics related to fire from 2007 to 2017 and provided a monthly distribution of fire damages both to humans and to the economy by building type. We also identified the relationship between the human damage and the economy damage, and compared the economic losses per casualty by building type. The human damage in residential buildings occupied the highest portion, whereas the economic damage of industrial buildings represented more than a half of all economic damage due to fire. The economic damage per casualty was shown highest for industrial buildings and has also increased rapidly in recent years.

A Case Analysis and Research Trends of FDS in Domestic (국내 FDS연구동향 및 적용사례분석)

  • Kim, Bong-Chan;Lee, Rang;Kim, Dong-Eun;Lee, Ju-Hee;Kwon, Young-Jin
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2011.11a
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    • pp.15-18
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    • 2011
  • 본 연구는 국내 FDS연구동향 및 적용사례를 분석한 것으로서, 분석한 결과 FDS는 법의 개정 및 화재사고와 밀접한 관계를 가지는 것으로 판단되었다. 또한 FDS 수치해석시의 격자 민감도, 벽면의 난류유동 등의 문제점이 파악되어, 향후 개선되어야 할 것으로 판단된다.

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Fire Acupuncture for Varicose Veins in the Lower Extremities: A Review of Randomized Controlled Trials

  • Onyou Jo;Jiyoon Lee;Sangmin Park;Jaewook Shin;Saerom Choi;Seongyong Choi
    • Journal of Acupuncture Research
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    • v.40 no.3
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    • pp.177-187
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    • 2023
  • Varicose veins have a substantial burden on individuals' aesthetics and overall quality of life. The current body of research on Korean medical interventions for varicose veins is limited in Korea, and exploration into clinical trends is lacking. This review specifically analyzed fire acupuncture, which is an understudied intervention in Korea that demonstrated efficacy in alleviating pain and paralysis while promoting tissue regeneration. A comprehensive investigation of the China National Knowledge Infrastructure database was conducted, utilizing terms such as "varicose vein," "fire needle," "fire acupuncture," "burning acupuncture," "burning needle," "huǒzhēn," "xiàzhī jìngmài," and "jìngmài qūzhāng." This review included 14 studies investigating the role of fire acupuncture in treating varicose veins. We extracted variables, including age, sex, disease duration, intervention method, treatment frequency, treatment period, acupoints, and outcomes. Fire acupuncture appeared as the primary intervention method, followed by general acupuncture. The protruding part of varicose veins is the main treatment area for fire acupuncture, while the acupoints BL57 and ST36 were most frequently utilized for general acupuncture. Treatment results revealed significant improvement in all studies. However, there are limitations, such as scarce studies, limited side effects studies, and potential bias. Consequently, extensive and well-structured future studies are necessary to demonstrate the role of fire acupuncture in varicose veins.

BIM and Fire Safety Engineering - Overview of State of The Art

  • Davidson, Anne;Gales, John
    • International Journal of High-Rise Buildings
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    • v.10 no.4
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    • pp.251-263
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    • 2021
  • Fire safety engineering is a critical specialization to include in the design of a tall building yet is often excluded from the Building Information Model (BIM) and integrated design process. The design of fire safety systems is interdependent with building/structural geometry, HVAC, mechanical, and electrical systems. A BIM is a 3D visual representation that stores data on these kinds of systems. The compatibility between BIM and fire safety design seems obvious yet has received a dearth of attention in structural (fire) engineering literature. The authors herein have reviewed over 40 recent papers on utilizing BIM for fire safety engineering, focusing on contemporary literature to obtain a more up-to-date review of the state-of-the-art. The resulting trends, technologies, research gaps, and methodologies are presented in this paper. Adoption of BIM in fire safety engineering is slow and behind other disciplines which may be improved if research involved more industry partners. For BIM technology to reach its potential, industry manufacturers need to provide high LOD fire BIM objects, fire engineers and researchers need to collaborate on future advancements, and building owners/management need to be educated on how to use the benefits provided.

Numerical Predictions of Fire Characteristics of Passenger Train Fire in an Underground Subway Tunnel, Depending on Change of Location of Ventilation Facility (지하철 터널내의 객차 화재발생시 환기실 위치변화에 따른 화재특성의 수치적 연구)

  • Son, Bong-Sei;Chang, Hee-Chul
    • Fire Science and Engineering
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    • v.22 no.5
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    • pp.1-8
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    • 2008
  • The study is to perform numerical analysis of train fire characteristics in an underground subway tunnel, depending the different locations of ventilation facility. To study the characteristics of train fire, two kinds of worst-case scenarios are selected, based on escape distance, escape time, and fire zone, and trends and thermal environments of tunnel are analyzed by changing the locations of ventilation facility for times. Fire characteristics is calculated by using FLUENT v.6.3.26, and turbulent flow is calculated by using the standard k-${\varepsilon}$ model. The numerical results show distribution of carbon monoxide concentration, temperature, and velocity. The results of this study will contribute to building the most suitable ventilation systems when designing subway stations and tunnels.

A Study on the Research Trends of Evacuation Elevator in High-rise buildings (초고층건축물 피난엘리베이터관련 연구동향)

  • Seo, Dong-Goo;Lee, Jae-Won;Kwon, Young-Jin
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2012.04a
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    • pp.484-487
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    • 2012
  • 최근에는 피난안전측면에서 피난용 엘리베이터를 활용하기 위한 연구가 증대되고, 국가R&D사업이 추진되는 등 많은 관련연구가 진행되고 있다. 본 연구에서는 이러한 배경에 입각하여, 국내외의 연구동향을 살펴보고 국내의 법제화에 발맞추어 문제점 해결을 위한 연구필요성 도출을 목적으로 하였다. 연구동향 분석결과 국외의 경우 미국 NIST 및 일본건축학회 등 화재를 연구하는 기관을 중심으로 대응방안을 구축하고 있으며, 국내는 현재 거주자 피난행동과 연기제어 측면에서의 연구가 이루어지고 있었다. 하지만 엘리베이터 설비적인 측면에서의 기술향상도모는 미흡한 실정이다.

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