General Theory of Bridge Construction: Containing Demonstrations of the ...
General Theory of Bridge Construction: Containing Demonstrations of the ...
Herman Haupt
The book General Theory of Bridge Construction: Containing Demonstrations of the ... was written by author Herman Haupt Here you can read free online of General Theory of Bridge Construction: Containing Demonstrations of the ... book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is General Theory of Bridge Construction: Containing Demonstrations of the ... a good or bad book?
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The arches are composed of rolled plates ; each arch con- sists of 8 plates, 2 X |, with a space in the middle of two in- ches, the upper and lower portions being separated by blocks of cast-iron. The lower chord is of rolled iron, and is designed not to resist the thrust of the arch, but to connect the system of counter-bracing. -* The lateral braces are of wood, supported by angle-blocks of cast-iron, and connected by rods J inch in diameter. The counter-brace rods are one inch diameter, pass...ing through angle-blocks on the upper chord, and connected with the lower chord by means of eyes passing around the lower lateral braco rods. Digitized by VjOOQIC COVE RUN VIADUCT. 19£ Bill of Materials for one Span. Cast-iron. Cubic inches. 40 blocks between arches, each 7J cubic inches . 300 36 post plates, each 30 cubic inches 1,080 40 coupling plates for arches, each 20 cubic inches 800 20 angle-blocks, for counter-brace rods, each 14 cubic inches 280 40 angle-blocks, for lateral brace rods, each 46 cubic inches 1,840 40 washers for lateral bolts, 3 cubic inches 120 6 angle-blocks, for diagonal brace rods, each 14 cubic inches 84 6 washers for diagonal brace rods, each 3 cubic inches 18 4 skew-backs, each 300 cubic inches 1,200 Total cubic inches of cast-iron 5,722 Weight in pounds, 1431.
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