• Title/Summary/Keyword: Fire response

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Research on Disaster and Fire Response Capability and Hazard Analysis Using Basic Mapping Method (Mapping을 이용한 소방방재력 및 재해취약성의 연구)

  • Wang, Soon-Joo;Baek, Min-Ho
    • Journal of the Society of Disaster Information
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    • v.3 no.1
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    • pp.69-86
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    • 2007
  • The fire department has one of the most important role as public resources of response to disasters in the aspect of supply and the adequate distribution of resources of response is essential, but the distribution of the response capability to disaster of fire department does not reflect the regional hazard vulnerability and hazard risks. Researchers performed database process with simple mapping based on the regional fire disaster response capability and the regional hazard vulnerability and hazard risks. The cities and towns are divided to four types each, total eight types and relative threat ratios are extracted from every type. The fire disaster response capability was extracted from number of firemen and fire vehicles in defined region. The distribution of the fire disaster response capability was inadequate and not matching to relative threat especially in small cities and some types of towns. The regional relative threat and resources should be analyzed by more delicate mapping and software development in the future.

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An Analysis of Working Hours by Type of Sprinkler Head Used at Indoor Gymnasiums

  • Ahn, Jae-Cheon;Kong, Ha-Sung
    • International journal of advanced smart convergence
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    • v.10 no.4
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    • pp.117-123
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    • 2021
  • This study aims to analyze working hours of sprinkler heads when a fire occurs at an indoor gymnasium while sprinkler heads are installed in division of standard response type, special response type, and earlier response type. The fire scenario was designed under the assumption that the fire started from overheating of a heater in the indoor gymnasium has transferred on to a couch to spread. The analysis on the operation time of the standard response type sprinkler head, the special response type sprinkler head and the early response sprinkler head was conducted. The result showed that, in case of fire in a gymnasium, the time for opening of the heat sensor due to the heat from the fire varies by the type of the sprinkler head. When a special response type sprinkler is installed, it worked below the assessment standards. When an early response sprinkler head is installed, it worked appropriately according to assessment standards. Based on the results, we found that sprinkler heads will work properly when installed according to design relevant to laws and regulations. This means that there is a limit in installation of sprinkler heads based on the existing law-based design as for indoor gymnasiums. Again, we conclude that if sprinkler heads are installed based on design made through laws and regulations, more time will be needed for operation, making it highly likely to fail to stop a fire at an earlier point of time.

A study on the improvement plan of fire simulation training for the improvement of fire response ability : Focusing on the fire simulation training of business facility (화재대응능력 향상을 위한 화재모의훈련의 개선방안에 관한 연구 : 업무시설의 화재모의훈련 중심으로)

  • Kim, Bongjun;Ryu, Guhwan
    • Journal of Digital Convergence
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    • v.18 no.9
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    • pp.191-198
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    • 2020
  • In this study, in order to propose an improvement plan for fire simulation training to improve fire response capability, fire simulation training is conducted for three business facilities, and changes according to whether training materials are used and whether the response time for each response stage is reflected in the training evaluation. The response posture and response ability of the training participants were observed and analyzed. As a result of the analysis, it was analyzed that most of the training participants improved their participation in training, response posture, and response ability when the use of training textbooks and response time for each response stage were reflected in the training evaluation. In the event of a fire simulation training, a number of training materials that can similarly implement the fire situation are used to improve and maintain the fire response capabilities (fire notification and fire report, initial extinguishing, and evacuation) of the training participants, and the target time for each response step. The result was that it can be used as a useful index for improving fire response capability and improving fire simulation training in the future and feedback only when quantitative training evaluation is conducted based on this setting.

Individual Behavioral Response in an Emergency (비상시 개인별 대응행동)

  • Jeong, Hyun-Gyu;Song, Yong-Sig;Cho, Won-Chol;Lee, Tae-Shik
    • 한국방재학회:학술대회논문집
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    • 2008.02a
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    • pp.625-628
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    • 2008
  • The behavioral response of the individuals intimately involved with the initiation of the fire or those who aware of the initial fire cue, often appeared to be a determinant to the outcome of the fire incident, the nonadaptive flight or panic type behavioral response appears to be an infrequent, unusual or unique participant behavioral response in most fire incidents. Therefore, this study focused on the investigation of the individual behavioral responses depend on the distinction of sex and age.

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Effect of Fire Induced Spalling on the Response of Reinforced Concrete Beams

  • Kodur, V.K.R.;Dwaikat, M.B.
    • International Journal of Concrete Structures and Materials
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    • v.2 no.2
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    • pp.71-81
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    • 2008
  • A macroscopic finite element model is applied to investigate the effect of fire induced spalling on the response of reinforced concrete (RC) beams. Spalling is accounted for in the model through pore pressure calculations in concrete. The principles of mechanics and thermodynamics are applied to compute the temperature induced pore pressure in the concrete structures as a function of fire exposure time. The computed pore pressure is checked against the temperature dependent tensile strength of concrete to determine the extent of spalling. Using the model, case studies are conducted to investigate the influence of concrete permeability, fire scenario and axial restraint on the fire induced spalling and also on the response of RC beams. Results from the analysis indicate that the fire induced spalling, fire scenario, and axial restraint have significant influence on the fire response of RC beams. It is also shown that concrete permeability has substantial effect on the fire induced spalling and thus on the fire response of concrete beams. The fire resistance of high strength concrete beams can be lower that that of normal strength concrete beams due to fire induced spalling resulting from low permeability in high strength concrete.

A Study on the Early Response System Subway Cabin Arson Fire (지하철 차량 방화사고 초기대응에 관한 연구)

  • Roh, Sam-Kew;Ham, Eun-Gu;Kim, Si-Gon
    • Fire Science and Engineering
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    • v.20 no.2 s.62
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    • pp.21-30
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    • 2006
  • Since Daegu subway arson fire disaster in 2003, there have been several copycat crimes such as at Seoul Metro line number seven and Hongkong Chuiwan line cases. Oil and gas were used for fire propagation in most cases as in Daegu case and such fire could be expanded to a whole subway cabin within several minutes. The fire may eventually cause the whole subway system stop. Fire damage can be minimized when fire occurrence and diffusion are blocked by stages or isolated rapidly. This study suggests an effective early response system that separates passengers from fire and a real-time fire extinguishment program by stages. Based on the subway arson case studies, the early response scenario has been structured by three stages, i.e., confirmation of fire and damage, early fire extinguishment, and information dissemination and passengers evacuation.

A Study on the Classification of Domestic Fire Detector using Response Time Index (반응시간지수(Response Time Index)를 이용한 국내 화재감지기 등급분류에 관한 연구)

  • Hong, Sung Ho;Kim, Dong Suck;Choi, Ki Ok
    • Journal of the Korean Society of Safety
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    • v.32 no.2
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    • pp.46-51
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    • 2017
  • This paper presents classification of domestic fire detector using response time index. Response time is measured using fire detector distributed in Korea, and the response time index is estimated. Plunge test prescribed by FM is conducted to measure response time of fire detector. The detector used to test is fixed temperature type(thermistor and bimetal type) and rate of rise temperature type(thermistor and pneumatic type). The nominal operation temperature of fixed temperature type detector is $70^{\circ}C$ and rate of rise temperature is $15^{\circ}C/min$. The fixed temperature type is measured 7 products, and the rate of rise temperature type is measured 5 products. The results show that in case of fixed temperature type(thermistor) is classified "Quick" or "Standard" and fixed temperature type(bimetal) is not classified. The rate of rise temperature type(thermistor) is classified "Fast" or "Ultra Fast" and the rate of rise temperature type(pneumatic) is classified "Very Fast" or "Ultra Fast". The pneumatic type shows more fast response than thermistor type. Also these results indicate the fixed temperature type(bimetal) is not suitable for early stage fire detection.

A Study on the Response Characteristics of the Residential Smoke Detector Depending on Controlled Fire Tests (화재실험을 통한 주택용 연기감지기 응답특성에 관한 연구)

  • SaKong, Seong-Ho;Kim, Shi-Kuk;Lee, Chun-Ha;Jung, Jong-Jin
    • Fire Science and Engineering
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    • v.23 no.4
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    • pp.98-103
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    • 2009
  • In this paper, in order to analyze the response characteristics of the smoke detectors which is suitable with the residential fire detector, the paper fire and flammable liquid fire experiment came to be accomplished according to UL Standard for safety for smoke detector for fire alarm signaling systems, UL 268. Also Photoelectric smoke detector, the Analog smoke detector and the single station alarm device came to be used with the specimen and the response characteristics of the smoke detectors which follows in these two types(paper, flammable liquid) test fire came to be analyzed. As a result, according to test fire there was some difference to response characteristics of the smoke detectors.

A Study on the Emergency Response System by Five Sense in the Subway Fire (오감인지를 통한 지하철 화재 비상대응시스템에 관한 연구)

  • Roh, Sam-Kew;Ham, Eun-Gu
    • Fire Science and Engineering
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    • v.22 no.1
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    • pp.76-83
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    • 2008
  • In the subway fire case, it is important that judge accuracy subway fire type and on the initial response minimize accident damage. But when the subway fire accident occurring, if it have know impossible that accuracy subway fire type to judge at once though witnessing driver or emergency response staff. This study suggests type of five senses that using information of five sense take to the subway fire accident information which analyses five senses as occurring subway fire accident. Also it is proposed that emergency response system though fire scenario by using Activity-Action Diagram(AAD).

Impact of Fire Demand on Fire Service Budget (소방수요가 소방예산에 미치는 영향)

  • Lee, Wonjoo;Lim, Jae Hoon;Moon, Kwang Min
    • Fire Science and Engineering
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    • v.34 no.4
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    • pp.125-134
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    • 2020
  • This paper aimed to statistically analyze the impact of fire needs not considered in previous reports based on preventive and preparedness strategies of fire administration and fire budget.. The panel data came from 16 metropolitan councils from 2008 to 2018 and was statistically analyzed based on the preventive measures of the fire administration (agreement for building permission, specific target for fire-fighting, public use facilities, and special fire inspection [SFI]), preparedness of the fire administration (fire safety education [FSE]), response of the fire administration (mobilization for fire suppression [MFS] and mobilization for ambulance service [MAS]), and fire budget. In the results, SFI, FSE, and MFS had a significant negative influence on the fire budget. Meanwhile, MAS had a significant positive effect on the fire budget (p < 0.01). These results reflect public policy in Korea; there has been a paradigm shift in fire administration: from disaster acceptance (focusing on recovery) to disaster response (focusing on field response) to disaster preparedness (focusing on preparedness).