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Author:

Chow, Wan-Ki (Chow, Wan-Ki.) | Wood, Antony (Wood, Antony.) | Li, Junmei (Li, Junmei.)

Indexed by:

SSCI

Abstract:

Emergency evacuations during fires have historically been identified as a safely concern for super tall buildings. Stage evacuations and evacuations to a refuge floor were implemented as solutions, but after the World Trade Center tragedy, surveys showed occupants were unwilling to stay on refuge floors. This study proposes an alternative - horizontal evacuation using skybridges between towers taller than 200 m (656 ft). Skybridges can reduce the chances of normal vertical downward evacuation routes being blocked and increase a building's' evacuation efficiency without increasing the number of stairs. Linking up refuge floors in building clusters using skybridges would further reduce evacuation times. In this paper, we evaluate the skybridge design in terms of evacuation times in a typical 200 m (656 ft.)-tall building. Reductions in evacuation times are justified under three occupant loads. Empirical equations commonly used for performance-based design projects were used in the analysis, and the results were justified using evacuation software.

Keyword:

Author Community:

  • [ 1 ] [Chow, Wan-Ki]Hong Kong Polytech Univ, Dept Bldg Serv Engn, Kowloon, Hong Kong, Peoples R China
  • [ 2 ] [Wood, Antony]CTBUH, Chicago, IL USA
  • [ 3 ] [Li, Junmei]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China

Reprint Author's Address:

  • [Chow, Wan-Ki]Hong Kong Polytech Univ, Dept Bldg Serv Engn, Kowloon, Hong Kong, Peoples R China

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Source :

JOURNAL OF ARCHITECTURAL AND PLANNING RESEARCH

ISSN: 0738-0895

Year: 2013

Issue: 2

Volume: 30

Page: 146-166

ESI Discipline: SOCIAL SCIENCES, GENERAL;

JCR Journal Grade:4

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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