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http://dx.doi.org/10.7731/KIFSE.2012.26.4.048

A Study on the Evacuation Risk of Simultaneous Fires from Exterior  

Min, Se-Hong (Dept. of Fire & Disaster Protection Engineering, Gachon Univ.)
Publication Information
Fire Science and Engineering / v.26, no.4, 2012 , pp. 48-54 More about this Journal
Abstract
In order to study on the evacuation risk when connate fires caused by vertical fire spread of the exterior occurs, the egress simulations based on the relevant scenarios has carried out. As a result of it, ASET (permitted evacuation time) was reached in between 550 to 650 seconds in entire floors after vertical smoke spread from fire of combustible exteriors. In particular, ASET was 358 seconds in the first floor, 490 seconds in the six floor and 473 seconds in the tenth floor. In addition, five floors of all levels, the 1st floor, the 6th floor and the 28th floor ~30th floor, show RSET (minimum evacuation time) which is bigger than ASET as evacuation risk. This result presents occupants in high rise buildings with more than 15 floors might not be able to egress of them using staircases due to huge population attempting to evacuate simultaneously. Particularly, 699 people in the upper levels by smoke from the first floor are having difficulty escaping this building since ASET on the first floor adjacent to the ignition point was 358 seconds which is relatively reached fast. Considering a prevention method of the fire and smoke spread, architects have to use non-combustible exterior in the building's facade to be required as an active fire protection system.
Keywords
Simultaneous fire; Evacuation; Modeling; Pathfinder; Exterior fire; Vertical flame;
Citations & Related Records
Times Cited By KSCI : 9  (Citation Analysis)
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