Economics of bridgework, a sequel to Bridge engineering (1921)
Waddell, J. A. L. (John Alexander Low), 1854-1938 · New York, J. Wiley · leaf 199
to 1 Nickel-SteelSuper-Structure Ijow-MarketUnit-Prices High-MarketUnit-Prices These results are recorded graphically in Fig- 18/i. ECONOMIC SPAN-LENGTHS FOR SIMPLE-TRUSS BRIDGES 161 From a study of the preceding table there can be drawn the followingdeductions: A. For all types of bridges the… … m^mmmmm 250 300 450 500 350 ^0 5pan In Yeel Fig. 18e. Costs per Lineal Foot of Structure for Low-Level, Combined Bridges onSand Foundations 150 Feet Deep. B. The lighter the superstructure and the live load it carries, thegreater generally is the economic span-length, and the greater the…
Bridges
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