Technical Rescue, Terrorism

ASSESSING STRUCTURAL COLLAPSE FROM ACTS OF TERROR

多多在线观看免费视频Issue 11 and Volume 159.

BY LARRY COLLINS Incident commanders on the scene of major terrorist attacks and other emergencies resulting in structural damage or collapse are often faced with a “go” or “no-go” decision: Can they commit first responders to immediately enter the structure to begin life-saving operations with a reasonable assurance that what remains of the structure (or the collapse pile itself) won’t come down on their heads? Do they have the ability to evaluate the structural integrity with a reasonable degree of accuracy? Is the structure reasonably safe to enter without major stabilization, or will it require hours-long shoring operations? A truly accurate assessment of the stability of damaged structures often requires the skill, experience, training, and knowledge of a certified structural engineer, who is prepared to perform a risk analysis and to make certain calculations about the weight of material, the status of key structural members, how the loads have been…

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