Economics of bridgework, a sequel to Bridge engineering (1921)
Waddell, J. A. L. (John Alexander Low), 1854-1938 · New York, J. Wiley · leaf 280
ut 2,600 ft. Sixth. It is impracticable to take the substructure into account when 242 ECONOMICS OF BRIDGEWORK Chapter XXVI making general economic investigations for arch bridges, because no twoexamples thereof are alike. In case of a succession of long spans in whichthere is a choice of rise, a… … 0.15 0.20 0.25 0.30 O.i Ratios of Rise to Span Lengrth. 0.60 Fig. 26/. Economics of Solid-Rib Arches, with Columns and Bracing, for Steam-Railway Structures, in Relation to Ratios of Rise to Span-Length. be computed, the uneconomic effect of departing from the establishedeconomic ratio of rise to…
Bridges
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