• 제목/요약/키워드: emergency construction

검색결과 339건 처리시간 0.029초

Finite Element Analysis of Carbon Fiber Composite Sandwich Panels Subjected to Wind Debris Impacts

  • Zhang, Bi;Shanker, Ajay
    • 국제학술발표논문집
    • /
    • The 9th International Conference on Construction Engineering and Project Management
    • /
    • pp.436-442
    • /
    • 2022
  • Hurricanes and tornadoes are the most destructive natural disasters in some central and southern states. Thus, storm shelters, which can provide emergency protections for low-rise building residents, are becoming popular nowadays. Both FEMA and ICC have published a series of manuals on storm shelter design. However, the authors found that the materials for related products in the market are heavyweight and hard to deliver and install; renovations are necessary. The authors' previous studies found that lightweight and high-performance composite materials can withstand extreme wind pressure, but some building codes are designated in wind-borne debris areas. In these areas, wind debris can reach greater than 100 mph speed. In addition, the impact damage on the composite materials is an increasing safety issue in many engineering fields; some can cause catastrophic results. Therefore, studying composite structures subjected to wind debris impact is essential. The finite element models are set up using the software Abaqus 2.0 to conduct the simulations to observe the impact resistance behavior of the carbon fiber composite sandwich panels. The selected wood debris models meet the FEMA requirements. The outcome of this study is then employed in future lab tests and compared with other material models.

  • PDF

Numerical analysis for behavior of outer concrete tank in emergency LNG spillage

  • Lee, Jeong Su;Park, Chan Kyu;Lee, Yun;Kim, Ji-Hoon;Kwon, Seung Hee
    • Computers and Concrete
    • /
    • 제14권4호
    • /
    • pp.369-385
    • /
    • 2014
  • In the existing method for analyzing the liquid tightness of the outer concrete tank in an emergency LNG spillage, the temperature variation over time inside the tank, and the concrete properties dependent on temperature and internal moisture content, have not been taken into account. In this study, the analyses for a typical LNG concrete tank subjected to thermal load due to spillage were performed with three different cases: the existing method was adopted in the first case, the transient temperature variation was considered in the second, and the temperature-moisture content dependent concrete properties were taken into account as well as the transient states of temperature in the third. The analysis results for deformation, compressive zone size, cracking, and stress of reinforcements were compared, and a discussion on the difference between the results obtained from the different analysis cases was made.

우리나라의 생물테러 대비 및 대응방안 (The Strategic Plan for Preparedness and Response to Bioterrorism in Korea)

  • 황현순
    • Journal of Preventive Medicine and Public Health
    • /
    • 제41권4호
    • /
    • pp.209-213
    • /
    • 2008
  • Following the Anthrax bioterrorism attacks in the US in 2001, the Korean government established comprehensive countermeasures against bioterrorism. These measures included the government assuming management of all infectious agents that cause diseases, including smallpox, anthrax, plaque, botulism, and the causative agents of viral hemorrhagic fevers (ebola fever, marburg fever, and lassa fever) for national security. In addition, the Korean government is reinforcing the ability to prepare and respond to bioterrorism. Some of the measures being implemented include revising the laws and guidelines that apply to the use of infectious agents, the construction and operation of dual surveillance systems for bioterrorism, stockpiling and managing products necessary to respond to an emergency (smallpox vaccine, antibiotics, etc.) and vigorously training emergency room staff and heath workers to ensure they can respond appropriately. In addition, the government's measures include improved public relations, building and maintaining international cooperation, and developing new vaccines and drugs for treatments of infectious agents used to create bioweapons.

비상용 발전기 자원화 확대를 위한 현장실태조사에 관한 연구 (A Study on Site Survey of Emergency Generator for Resources)

  • 조성구;한운기;정진수;송영상;임현성
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2015년도 제46회 하계학술대회
    • /
    • pp.1565-1566
    • /
    • 2015
  • As a result of increasing power demand and concern about power supply shortage in the world, various energy sources without depletion of fossil fuel are installed to electrical network. Above all, nuclear energy can be considered as the most economical energy source to generate electricity. But recently, due to problem of safety which has emerged as a key social issue, additional construction of nuclear power plants is difficult. In order to replace nuclear power, researches on the emergency generator have been actively conducting. This study conducted a survey of public institutions about specification of backup generator system and current states to secure available capacity.

  • PDF

인천국제공항 제4활주로 건설 타당성 연구 (A Study on feasibility for runway development -IIAC 4th runway construction case study-)

  • 최동엽;신중하;장찬혁;박성도
    • 한국항공운항학회지
    • /
    • 제27권2호
    • /
    • pp.37-46
    • /
    • 2019
  • Although This study is to produce various considerations for the proper time and feasibility of new runway with Incheon international airport $4^{th}$ runway development case. In order to validate the feasibility of runway development, it is main considerations to be increased airport capacity for accommodating increase air traffic demand, secure stable airport operation without degrading service level, cope with emergency situation and maintain competitive among competitive airports which are developing new runway. Conclusionally, to develop new runwlay at the proper time for sustainable and stable airport operation without stop is the best way of maintaining competitiveness among foreign competitive airports.

국가지휘 무선통신망 구축 운영방안에 관한 연구 (A Study on the National Command Wireless Communication Network Construction and Operation)

  • 이창주
    • 한국재난정보학회 논문집
    • /
    • 제1권1호
    • /
    • pp.91-119
    • /
    • 2005
  • When the national disaster accident is occurred, it is difficult to maintain the mutual cooperation systems. In order to solve the problems, the construction of the national unified command wireless network is necessary. In this paper, the specified state of the characteristic frequency of the digital TRS wireless network constructed recently is investigated and analyzed. Through the analysis, the problems of the construction of the national unified command wireless network are grasped. To solve the problem, it is proposed that the digital TRS wireless network is connected with the satellite communication network, and connected with the existing wireless network, LMR. In the concretely it is proposed that the natural unified wireless network should be proceeded step by step. At first, for 2 years the existing networks of the Fire Fighting Agency, the Police, the Forest Service and so on must be utilized and prepared to link with TRS. The second, for 2 years it is carried forward a scheme to maintain the properties of the agencies concerned. Further, it must be prepared to connect with satellite network. At third, for 2 years all agencies concerned with the fire fighting and the disaster prevention must be unified, and the systems have to be promoted for the p1an of linkage of TRS network and the existing network. Next the agencies concerned have to be unified and the authority has to be intensified. When a disaster is occurred, the National Emergency Management Agency has to play a central role. In a local area it has to be given the Fire Fighting Agency an authority and a duty to get ready for each emergency situation.

  • PDF

운영중인 철도비탈면 보호를 위한 초속경 복합매트의 강도 및 내구성 실험 (Strength and Durability Test of Rapid Hardening Composite Mat for Protect Railway Slope in Operation)

  • 유현상;강태희;정혁상;백인철
    • 한국지반신소재학회논문집
    • /
    • 제21권4호
    • /
    • pp.79-91
    • /
    • 2022
  • 최근 폭우, 폭설 등과 같은 이상기후로 인해 도로, 철도 및 단지에 적용된 비탈면의 국부적 파괴 또는 손상 빈도가 점차 증가하고 있다. 초속경 복합매트(Rapid Hardening Composite Mat, RHCM)은 대규모 토공이 불필요하고 수해복구시간을 최소화할 수 있는 장점이 있어 대안으로 고려될 수 있다. RHCM은 대표적인 비탈면 보호공법인 숏크리트 공법 및 식생공 공법에 비해 중장비 설비가 불필요하고 유지관리가 용이하며, 기존 Geosynthetic Concrete Composite Mat(GCCM)에 비해 경화시간이 짧아 긴급복구가 가능하다는 장점이 있다. 따라서, 본 연구에서는 실내시험을 통해 RHCM의 강도 및 내구성을 측정하고 GCCM과 비교·분석하였다. 실내시험 결과 RHCM의 강도는 기존 GCCM에 비해 약 51% 높은 것으로 나타났으며, 내구성 또한 69% 높은 것으로 나타났다.

인천국제공항 공항전력정보시스템 설계 (Airport Power Information System Design in the Inchon Inta'l Airport)

  • 오영달;민성준;임정규;문정호;이태식;윤태혁;김문호;문영현
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 1998년도 하계학술대회 논문집 C
    • /
    • pp.1121-1124
    • /
    • 1998
  • Inchon International Airport(IIA) is constructed for Northeast Asia Gate as is important for IIA to become a 21 century's leader in the world, as is planned for open at december 2000 as a important economic link for unified korea. Airport Power Information System(APIS) is designed through investigation of advanced domestic and international example. In addition to power facility operation it is designed for using an information infrastructure of whole airport. APIS is newly designed for uninterupted power supply, effective power management, information infrastructure's construction. making a profit by positively introduction of new technology for collection and conservation of power related data, correlation with airport infra systems, data interrelative arrangement about related systems like outdoor lighting system and automatic measuring record, CCTV systems for remote power facility monitoring, and promotion of management ability in the emergency status.

  • PDF

신종 감염병 환자의 효율적 처치를 위한대형병원 응급실 관리요소의 중요도 도출 (Deriving the Effective Improvement Elements of the Emergency Room in Large General Hospitals)

  • 윤송이
    • 중환자간호학회지
    • /
    • 제8권2호
    • /
    • pp.66-79
    • /
    • 2015
  • Purpose: This study aimed to derive the elements for effectively improving the management of emerging infectious diseases in the emergency room in large general hospitals. Methods: This research involved an analytic hierarchy process analysis of 10 experienced nurses working in a large general hospital located in the Seoul metropolitan area. The weighted values of the criteria for evaluating the importance of the management elements of patients with emerging infectious diseases in the emergency room of large general hospitals were derived using an analytic hierarchy process survey. Results: The results of the analytic hierarchy process analysis showed that experts considers responsiveness (0.291) as most important with respect to the criteria for the policy for isolation and control of infectious patients. The order of importance of the criteria for the policy for isolation and control of infectious patients were as follows: responsiveness (0.291), economical efficiency (0.257), feasibility (0.242), and sustainability (0.209). Subsequently, the weighted values of the management of the policy elements were determined based on the derived importance of the criteria mentioned above. These were, in order of priority, the construction of communication channels with the government authorities when dealing with emerging infectious diseases (15.9%), the equipment and provision of personal protective equipment to protect nurses from infection and dissemination of material (14.6%), and the operation of the isolation room and patient separation systems (14.1%). Conclusion: This study suggests critical strategies for infection control during a pandemic of emerging infectious disease.

학령기 아동의 응급상황에 대한 대처 측정도구 개발 (Development of a Coping Scale for Emergency Situations with Elementary School Students)

  • 김신정;이정은;강경아;송미경;이숙경;김성희
    • Child Health Nursing Research
    • /
    • 제15권3호
    • /
    • pp.271-281
    • /
    • 2009
  • Purpose: This study was conducted to develop an instrument to measure coping in emergency situations. Methods: The process included construction of a conceptual framework, generation 60 primary items, verification of construct validity and extraction of final items. The.60 preliminary items were reviewed for content validity by seven experts and were tested to evaluate inter-item correlation coefficient by three groups of elementary school students. From November 1 to December 10, 2008, data were collected from 920 elementary school students according to residential characters (major city, small town, rural area). Item analysis, factor analysis with rotation Varimax and Cronbach's alpha were used to analyze the data. Results: 1) There were 45 items in the final instrument categorized into 8 factors. 2) The factors were labeled as "Call for help and check" (8 items), "Care for common symptoms" (6 items), "Appropriate response for the situation" (5 items), "Evacuation" (6 items), "Care for tissue damage" (8 items), "Care for injury by heat, cold or foreign body" (6 items), "Offer help" (4 items) and "Rescue & escape" (2 items). 3) Cumulative percent of variance was 53.10% and eigen values ranged from 1.04 to 13.38. 4) Cronbach's alpha for the total was .943 and ranged from .527 to .869. Conclusion: Validity and reliability of the scale are confirmed in this study showing its utility for measuring coping in emergency situations with elementary school students. Utilization of the scale will also contribute to designing appropriate coping education programs for elementary school students.

  • PDF