n IMIESA - What's vibration got to do with it? : roads and bridges
|Article Title||What's vibration got to do with it? : roads and bridges|
|© Publisher:||3S Media (Pty) Ltd|
|Publication Date||Aug 2009|
|Pages||23 - 25|
On 7 November 1940, the 840 m-long, 11.7 m-wide Tacoma Narrows Bridge, with stiffening girders to a depth of 2.4 m, bucked and swayed in 67 km/h winds before eventually collapsing into the Narrows below. As is so typical of people after a disaster, some humorous fellow renamed the bridge Galloping Gertie'.
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