New Building Scheme to Resist Progressive Collapse
Publication: Journal of Architectural Engineering
Volume 18, Issue 4
Abstract
In this paper, a new scheme is proposed for retrofitting RC buildings to resist progressive collapse that may result from a first floor column failure. The proposed scheme is comprised of placing vertical cables connected at the ends of beams and hung on a hat steel braced frame seated on top of the building. In case of a column collapse, the cables transfer the residual loads above the failed column to the hat-braced frame, which, in turn, redistributes these loads to the adjacent columns. A finite-element modeling and a nonlinear dynamic analysis following the alternate path method (APM), as recommended by U.S. General Services Administration guidelines, are used to assess the viability of the proposed scheme. A 10-story RC building designed according to Australian Standard AS 3600 was adopted in the investigations. The investigation results demonstrate the possibility of preventing the progressive collapse of RC buildings by implementing the proposed scheme.
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Information & Authors
Information
Published In
Journal of Architectural Engineering
Volume 18 • Issue 4 • December 2012
Pages: 324 - 331
Copyright
© 2012 American Society of Civil Engineers.
History
Received: May 16, 2011
Accepted: Feb 13, 2012
Published online: Feb 15, 2012
Published in print: Dec 1, 2012
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