. Iron truss bridges for railroads. Methods of calculating strains, with a comparison of the most prominent truss bridges, and new formulas for bridge computations; . .5 ATnmmt of pn^h-ivmi 102 IRON TRUSS BRIDGES FOR RAILROADS. Collecting together the new tensions, and calculating the weights as before, we get; Tensions (2d Case). NAME. LENGTH. STRAIN. FITE TIMESTHE STRAIN. LBS. OF•WEOUGHT-IEON. Bottom segment r p 25. 25. 25. 25. 121143 309479 139
. Iron truss bridges for railroads. Methods of calculating strains, with a comparison of the most prominent truss bridges, and new formulas for bridge computations; . .5 ATnmmt of pn^h-ivmi 102 IRON TRUSS BRIDGES FOR RAILROADS. Collecting together the new tensions, and calculating the weights as before, we get; Tensions (2d Case). NAME. LENGTH. STRAIN. FITE TIMESTHE STRAIN. LBS. OF•WEOUGHT-IEON. Bottom segment r p 25. 25. 25. 25. 121143 309479 nn nl , li rioiTnter-tie On . Mn KI Tie Ki « Ml On Or> Vertical tie S k LI Mm Nn « « Oo Pp Oa Total Multiply by 2 for the other half of thetruss Vertical tie I i 150 75 Asiount of wrought-iron H i> i tQ.
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishernewyo, bookyear1870
