https://fire-safety.academy/w/index.php?action=history&feed=atom&title=File%3AFse-progressive-collapse-v1.svg 2026-11-04T14:00:04Z Revision history for this page on the wiki MediaWiki 1.43.11 https://fire-safety.academy/w/index.php?title=File:Fse-progressive-collapse-v1.svg&diff=2240&oldid=prev 2026-11-02T16:25:47Z

<p>Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity</p> <p><b>New page</b></p><div>== Summary ==<br /> The same frame after the loss of one column. Left: the loads find an alternate path and the damage stays local. Right: the failure spreads from element to element. Based on National Institute of Standards and Technology (2005), p. 206, and Australian Building Codes Board (2020b), p. 91.<br /> <br /> Original illustration for [[Progressive collapse]], level 4 Expert.<br /> <br /> * Source basis: National Institute of Standards and Technology (2005), p. 206 (alternate load paths; removal of one or two columns as design initiating event); Australian Building Codes Board (2020b), p. 91 (notional removal of a column; collapse not to extend beyond immediately adjacent storeys); National Institute of Standards and Technology (2008), p. xxxvi (vertical and horizontal progression)<br /> * Alt text: Two elevations of the same six-storey frame with one ground-floor column removed: left, the floors above bridge the gap; right, failure spreads up and sideways.<br /> <br /> == Licensing ==<br /> New drawing by Fire Safety Academy. © Fire Safety Academy.</div>

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