. The Street railway journal . r~ ^ ■ii^^S^Hl^ FIG. 3.—HORSESHOE ARCH ON THE INDIANAPOLIS & NORTH-WESTERN RAILWAY FIG. 20-FT. SPAN ON THE INDIANAPOLIS & NORTHERN LINE Steel members, are to be met with in the erection of reinforcedconcrete bridges, and the concrete bridge ofifers a better solu-tion than wood for the engineer who has prepared his steelplans too late to secure the steel from mills that are oftenseveral months behind their orders. Nearly everything re-quired for the reinforced concrete bridge is procurable in theimmediate vicinity of the proposed structure; such a bridge with
. The Street railway journal . r~ ^ ■ii^^S^Hl^ FIG. 3.—HORSESHOE ARCH ON THE INDIANAPOLIS & NORTH-WESTERN RAILWAY FIG. 20-FT. SPAN ON THE INDIANAPOLIS & NORTHERN LINE Steel members, are to be met with in the erection of reinforcedconcrete bridges, and the concrete bridge ofifers a better solu-tion than wood for the engineer who has prepared his steelplans too late to secure the steel from mills that are oftenseveral months behind their orders. Nearly everything re-quired for the reinforced concrete bridge is procurable in theimmediate vicinity of the proposed structure; such a bridge with wind bracing omitted, and even with the counters in thewrong panels. In short, numerous details of a steel bridgemay be overlooked and can never be detected save by anexpert, until finally the critical load or high wind carriesthe structure down with no warning of danger to the uniniti-ated. The average engineer must rely almost entirely on thesteel bridge builder for security of erection. 266 STREET RAILWAY JOURN
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
