The book Bridge Disasters in America was written by author George L George Leonard Vose Here you can read free online of Bridge Disasters in America book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Bridge Disasters in America a good or bad book?
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This mode of buying a bridge is very uncommon. The Ashtabula bridge, it is stated in the report of the committee ofthe Ohio Legislature appointed to investigate that disaster, hadfactors, --we can hardly call them factors of safety, --in some partsas low as 1-6/10 and 1-2/10, such factors referring to thebreaking-weight; and even these factors were obtained by assuming theload as at rest, and making no allowance for the jar and shock from arailroad train in motion. Well may the commissioners sa...y, as they doat the end of their report, "The bridge was liable to go down at anytime during the last ten years under the loads that might at any timebe brought upon it in the ordinary course of the company's business, and it is most remarkable that it did not sooner occur. " One point always brought forward when an iron bridge breaks down, isthe supposed deterioration of iron under repeated straining; and weare gravely told that after a while all iron loses its fibre, andbecomes crystalline. This is one of the "mysteries" which somepersons conjure up at tolerably regular intervals to cover theirignorance.
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