Monday 29 September 2014

1879 Tay Bridge disaster

The Tay Bridge disaster occurred during a violent storm when the first Tay Rail Bridge collapsed while a train was passing over it from Wormit to Dundee, killing all aboard. The bridge – designed by Sir Thomas Bouch – used lattice girders supported by iron piers, with cast iron columns and wrought iron cross-bracing. Bouch had sought expert advice on "wind loading" when designing a proposed rail bridge over the Firth of Forth; as a result of that advice he had made no explicit allowance for wind loading in the design of the Tay Bridge. He died within the year, with his reputation as an engineer ruined. Bouch's design for the Forth Rail Bridge was not used.


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