Economics of bridgework, a sequel to Bridge engineering (1921)
Waddell, J. A. L. (John Alexander Low), 1854-1938 · New York, J. Wiley · leaf 64
nsequently the use of that alloy underthe market conditions stated would not be economic. 28 ECONOMICS OF BEIDGEWORK Chapter V Example No. 3 Standard nickel steel having an elastic limit of 60,000 lbs. per squareinch is worth erected 7.3^ per lb. while carbon steel costs 5.1^5. What arethe… … Fig. 5a. Economic Limiting-Values of rr for ISimplc-Span, Steam-Railway Bridges. Fig. 5a gives 1.01 as the limit; hence the use of the alloy would effectconsiderable saving. Example No. 4 In the investigation for a proposed three-span, cantilever, railway bridgehaving a main opening of 1,550 feet,…
Bridges
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