Manual for railroad engineers and engineering students : containing the rules and tables needed for the location, construction, and equipment of railroads as built in the United States (1883)
Vose, George L. (George Leonard), 1831-1910 · Boston : Lee and Shepard · leaf 231
rection from the back of the arch. Fig. 102shows the general plan of the great bridge now being built acrossthe Mississippi at St. Louis. The chords of the curved ribs areto be made of cast steel tubes ; the thrust of the arches beingthrown upon the masonry. This immense work is to consist of 206… … Fig. 102. the railway being partly supported by and partly suspended fromthe arch beneath. The arches in Figs. 101 and 102 may be made deep enough andso braced as to possess sufficient stiffness in themselves to enablethem to maintain their form under a passing load without the aidof spandrel…
Railroad engineering
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