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Date: 2013-06-03 03:34:25Structural engineering Progressive collapse Safety engineering Urban search and rescue Structural failure Load-bearing wall Demolition Collapse of the World Trade Center Engineering Construction Civil engineering | Fire and Rescue Authorities Operational Guidance GRA 2.1 Rescues from confined spaces[removed]collapsed structuresAdd to Reading ListSource URL: www.insarag.orgDownload Document from Source WebsiteFile Size: 298,67 KBShare Document on Facebook |