Linda Hall Library of Science, Engineering, & Technology
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Bridges
Strength
British Bridges
Missouri Bridges

Bridges of the British Isles

The Menai Suspension Bridge
Britannia Bridge
Forth Bridge

Centuries of Civil Engineering

Westhofen, W.
The Forth bridge / Reprinted from "Engineering", February 28, 1890. 3rd ed, revised.
London. Offices of "Engineering" [1890?].
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The great Forth railway bridge was not the first cantilever bridge to be built, but it was certainly the longest. Designed by Benjamin Baker to bridge the Firth of Forth in Scotland, it utilized three towers, with cantilever arches extending from each. The result was two clear spans of 1700 feet each, almost four times as great as the span of the Britannia bridge. Baker used trusses made of tubular steel, which gave the bridge both its strength and its impressive appearance

The illustration, from the British journal Engineering, shows the bridge just before the completion of the central girders, which connected the great cantilever trusses.

 

 

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