Economics of bridgework, a sequel to Bridge engineering (1921)
Waddell, J. A. L. (John Alexander Low), 1854-1938 · New York, J. Wiley · leaf 457
oregoing the classification has been determined with an allowance for theeffect of the maximum speed over bridges. Where speed is reduced, the effects of the live k)ad are much less; and the allow-ance for impact and centrifugal force, if any, may be correspondingly reduced. Thiswill, of cour.se,… … 10 ZO 30 40 30 60 70 80 90 100 110 llO IdO 140 150 Spon in FeefFig. 41a. Diagram Showing Classification of U. S. Government, Standard Locomotives. %^.5iiMtw^^}sr-ifxks •S3C. u. /4&::: $■6 ;lt
Bridges
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