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Comparison of Evacuation Efficiency for Stair Width and Code for Occupant Load Calculation in High-rise Buildings  

Lee, Yang-Ju (한방유비스(주))
Ko, Kyoung-Chan ((주)지티이테크)
Park, Woe-Chul (부경대학교 소방공학과)
Publication Information
Fire Science and Engineering / v.25, no.1, 2011 , pp. 1-6 More about this Journal
Abstract
An evacuation simulation was carried out to confirm evacuation efficiency for stair width and problems in calculation of occupant load for high-rise buildings. The evacuation time and number of evacuated persons from a 39 story condominium-mercantile building were calculated by using Simulex for stair widths of 1.2 m, 1.5 m, and 1.8 m. The total occupant load based on the Korean code was higher than the number of actual residents by 2.3 times, and that based on the NFPA 101 Life Safety Code by 2.6 times, respectively. For the occupant load based on the Korean code, smaller stair width resulted in lower evacuation efficiencies due to bottlenecks in egress. For the actual residents and NFPA code-based occupant load, a high evacuation efficiency and negligible effects of the stair width on evacuation efficiency were confirmed. It was shown that there was a bottleneck even at the stair width of 1.8 m for the Korean code-based occupants, while the stair width of 1.2 m provided safe egress to the actual residents or NFPA code-based occupants. This recommended further studies on possibility of lowering the level of the Korean code in calculation of the occupant load.
Keywords
High-rise building; Occupant load; Evacuation efficiency; Stair width; Simulex;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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