Bridge Disasters in America the Cause And the Remedy
Bridge Disasters in America the Cause And the Remedy
George L George Leonard Vose
The book Bridge Disasters in America the Cause And the Remedy was written by author George L George Leonard Vose Here you can read free online of Bridge Disasters in America the Cause And the Remedy 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 the Cause And the Remedy a good or bad book?
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Per square inch, or 3, 000 Ibs. More than the elastic limit. The fracture of the tested rods, which it is stated broke with a single blow of the ham- mer very much in the manner of cast-iron, show a very in- ferior quality of material. The rods broke in the bridge ex- actly where we should look for the failure, viz. In the screw, at the end. No ordinary inspection would have de- tected this weakness. No inspection did detect it; but a proper specification, faithfully carried out, would have pre...- vented the disaster. Look now at an extract from the specification for bridges upon the Cincinnati Southern Railway : " A1J parts of the bridges and trestle-works must be pro- portioned to sustain the passage of the following rolling load, at a speed of not less than 30 miles an hour, viz. : two locomotives, coupled, each weighing 36 tons on the drivers in a space of 12 feet, the total weight of each engine and tender loaded being 66 tons in a space of 50 feet, and fol- lowed by loaded cars weighing 20 tons each in a space of 22 feet.
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