section modulus a 24-inchby 80—pound I-beam must he used. The Floor.—The floor designed by I. 0. Baker and shown in Fig. 18will be employed on this bridge. The stresses in the steel andconcrete will now be investigated. Considering a transverse sec- 4oef**ar/M>du//#&r/2tion one foot wide and… … Fig. 18.Baker Floor. 41 load, 75 pounds per lineal foot, under this support is 11/14S TJ1Z =500 pound—inches. The maximum positive dead and live load momentswere found to be 10,400 and 600 pound—inches respectively, makinga total moment of 11,000 pound-inches. The effective depth is 5inches. The…
Bridges · Concrete bridges · Iron and steel bridges · Theses
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