• Title/Summary/Keyword: High-rise building fire

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A Basic Study on Required Performance and Development Direction of Fire Resistance Wall on High-rise Building (초고층 건축물용 내화벽체 요구성능 및 개발방향 설정을 위한 기초연구)

  • Kim, Dae-Hoi;Park, Soo-Young
    • Fire Science and Engineering
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    • v.25 no.4
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    • pp.1-7
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    • 2011
  • Recently the interest in disaster prevention on super tall buildings is increasing. Especially in fire, against increasing of evacuation time due to high-rise, It is being tried to minimize the fire spread in building. Fire compartments using the fire-resistant wall and door, typical method to control the fire spread in buildings, delay the fire spread to other compartments and consequently evacuation time increases. But the existing provisions adjure only 2-hour fire resistance with maximum limit regardless of the super tall buildings, so this is a obstacle for research and development of the fire resistance wall in super tall buildings. In this study, we reviewed the fire resistance ratings of the wall, and presented the development directions for the fire resistance wall in super tall buildings considering fire resistance, construction and application of the wall.

NUMERICAL STUDY ON THE EFFECT OF EXTERNAL AIR VELOCITY AND DIRECTION ON FLAME SPREAD IN HIGH RISE BUILDING WITH THE ALUMINUM COMPOSITE EXTERNAL MATERIALS (알루미늄 복합 외장재를 사용한 고층 건축물의 외기 풍속, 풍향 변화가 화염전파에 미치는 영향에 대한 수치해석 연구)

  • Kim, H.J;Bae, S.Y.;Choi, Y.K.;Ryou, H.S.
    • 한국전산유체공학회:학술대회논문집
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    • 2011.05a
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    • pp.225-229
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    • 2011
  • The aluminum composite panel are widely used for the external materials of high rise building because of well insulation of heat and sound and improved Constructability. However, the polyethylene in main material of the aluminum composite panel shows weakness in thermal and fire resistances. For this reason, flame is spread more quickly when the fire break out. Therefore, the potentiality of fire spread to the exterior wall is high due to difficulty of early extinguishment and effect of external air. In this study, numerical investigation was performed by using FDS program for flame spread characteristics with various external air velocity and direction in ten-story building with the aluminum composite external materials. As a result, the flame spread velocity is 0.134m/s and it takes 224 seconds for flames to spread to the 10th floor without external air velocity. however, the flame spread velocity decreases 40% and it takes 348 seconds for flames to spread to the 10th floor when external air velocity is 2.5 m/s. and air direction is little effect compared to air velocity.

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A Study on the Fire Safety of Residential Facility Considering Grenpel Tower Fire (그렌펠 타워 화재를 고려한 주거시설 화재안전에 관한 연구)

  • Lee, Kyu-Min;Kwon, Young-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.11a
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    • pp.69-70
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    • 2017
  • Recently, The Building has became high rising and large scaling according to development of economy in domestic and other country, also the building has increased a variety of functions of insulation for warmth. and it has a symbol of economic growth, but it has risk factor for disasters such as fire. this hazards include not only general building but also residential building. Recently, Grenfell Fire that occurred in England has increased in combustion to the 24th floor of the 1st floor for 1 hour. it resulted in 80 deaths and 79 missing persons. In this study we suggest basic data of residential building for fire safety design related to domestic environment to analyze the problem of Grenfell Tower.

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An Evaluation of Fire Resistance and Mock-up Test of the Alumino-silicate Fire Resistant Board (알루미노 실리케이트계 내화보드의 내화성능 및 현장적용성 평가)

  • Kim, Doo-Ho;Park, Dong-Cheol;Kim, Woo-Jae;Lee, Sea-Hyun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2010.05b
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    • pp.43-47
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    • 2010
  • The use of high-strength concrete has increased for its excellent structural stability as buildings become higher and bigger than ever before in Korea and overseas recently. The functional requirement of building materials has also been bolstered so for the high -performance, high-quality construction materials to be used more extensively. However, the internal structure of the high-strength concrete is very dense so spalling can be caused during fire. The spalling in turn can cause critical structural damages followed by the fatal consequences, demolition of the building. Therefore, ensuring fire safety for high-rise buildings is assumed to be urgent. Alumino-silicate fire resistant board producing technology has been developed in situations that new materials with excellent fire resistance and easy installation has been sought. The alumino-silicate fire resistant board turned out to exhibit not only fire resistance and excellent physical and dynamical characteristics but also excellent onsite applicability and easy process and transportation after completing Mock-up test. Its excellence as a high-performance building materials was proven.

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Fire Performance of 100MPa High Strength Concrete with Fire Protection Cover (100MPa급 내화피복 고강도 콘크리트의 내화성능 인증)

  • Song, Young-Chan;Kim, Yong-Ro;Kim, Ook-Jong;Lee, Do-Bum
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2010.05b
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    • pp.21-22
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    • 2010
  • In this research, the purpose is to share fire resistance method to secure 3 hours fire resistance performance which is regulation noticed by Ministry of Land, Transport and Maritime Affairs for 100MPa high strength concrete which is predicted to apply to high rise building and to propose the guideline for confirmation of fire resistance performance of high strength concrete member to which fire resistance method is applied and field application in advance.

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Design Considerations for Concrete High-Rise Buildings

  • Chung, Kwangryang;Park, Chulho;Kim, Dohun
    • International Journal of High-Rise Buildings
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    • v.5 no.3
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    • pp.187-193
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    • 2016
  • Busan's Haeundae Resort project, which is currently being constructed by POSCO E&C, comprises the 101-story Landmark Tower and two 85-story residential towers. Presently, foundation and basement construction is complete, with a final completion date set for 2019. Considerations about the construction and design of the three reinforced concrete high-rise buildings will be discussed in this paper.

Decision of the priority of Fire Endurance and Spatting Prevention Efficiency in High Strength Concrete at High Rise Building Work (초고층 건축공사 고강도 콘크리트 골조의 내화 및 폭렬 방지성능 중요도 선정)

  • Baek, Dae-Hyun;Han, Min-Cheol;Han, Cheon-Goo
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.804-807
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    • 2008
  • Recently, with the increase of high rise and huge scale building construction, the use of high strength concrete has been increasing. High strength concrete has dense pore structure, which is susceptible to be damaged due to fire attack. For this, many researchers provide proper fire endurance method. In this paper, to provide the priority for selecting fire endurance method in high strength concrete execution, AHP technique is applied based on expert questionnaire. Fire endurance performance efficiency and ordinary performance efficiency was selected for level 1. Fire endurance performance efficiency had larger weight than ordinary one.

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A State-of-art of Experimental Research and Calculated Models of Dowel-type Timber Connections in Fire

  • Luo, Jing;He, Minjuan;Li, Zheng
    • International Journal of High-Rise Buildings
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    • v.10 no.4
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    • pp.285-297
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    • 2021
  • Fire safety is one of the most significant issues for the design of mid-rise and high-rise timber structures. A large number of experimental tests were conducted during the last three decades to investigate the fire performance of the dowel-type timber connections. Many influenced parameters (e.g. the thickness of the side timber, the load ratio, the fasteners type etc.) were considered in those experiments. Relevant calculated models were proposed by previous researchers to estimate the fire resistance of the connections. In this study, a series of experimental programs of dowel-type connections in fire are collected. Then, empirical formulas proposed by EN 1995-1-2, Fire safety in timber buildings, and previous researchers are presented and analyzed. The accuracy of those formulas is checked by comparisons between the experimental data and estimated results. The collected experimental research and empirical formulas can be used as the reference for the fire design of dowel-type timber connections in the future.

A study on the Comparison of High-rise building Egress Safety Rule in Countries for improvement of High-rise evacuation safety design criteria (초고층 피난안전설계 기준 개선을 위한 국내외 피난관계법령 비교에 관한 연구)

  • Hwang, EunKyung;Park, SuRoh
    • Journal of the Society of Disaster Information
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    • v.9 no.4
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    • pp.429-438
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    • 2013
  • In this study, compare and analyze for high-rise evacuation safety design criteria improvement about internal high-rise building egress safety rule. To the result, high-rise evacuation safety design criteria improvement data can be summarized as follows. First, should compute the evacuation capacity about the number of persons and when more than 2 exits are requested, over 50% of evacuation capacity must be satisfied even approaching to 1 exit is unable. Second, 2 ways of evacuation can be made smoothly by the stair or exit separation-distance standard regulation. Third, regulate the length limitation of dead-end corridor or passageway and it should give grades in limitation of whether the spring-cooler has been installed. Fourth, must secure the evacuation way and do the evacuee guidance when it's safety area and elevator or stair. Also needs to provide extra safety area to secure horizontal direction Escape Safety except fire escaping floor.