. Stresses in railway structures on curves . and for Coopers E-50 loadingthe maximum reaction is 326,300 lbs. Hence, the equivalent uniformload is 5265 lbs. per foot of truss. Now, the areas of the influence lines for the outer truss(Fig. 27 (b)) and for the inner truss (Fig. 27 (c)) are and Therefore, the maximum end reaction for the outertruss is Rx = x 3265 = 387,500 that for the inner truss is R2 = x 3265 = 305,000 reactions are shown in Table 5. TABLE End Reactions. Reactionsin lbs. Influence lire as EquivalentUniform
. Stresses in railway structures on curves . and for Coopers E-50 loadingthe maximum reaction is 326,300 lbs. Hence, the equivalent uniformload is 5265 lbs. per foot of truss. Now, the areas of the influence lines for the outer truss(Fig. 27 (b)) and for the inner truss (Fig. 27 (c)) are and Therefore, the maximum end reaction for the outertruss is Rx = x 3265 = 387,500 that for the inner truss is R2 = x 3265 = 305,000 reactions are shown in Table 5. TABLE End Reactions. Reactionsin lbs. Influence lire as EquivalentUniform Loadin Bridge on Tangent Each Truss Bridge on Curve Outer Truss Inner Truss 326 ,300 387,500305,000 3265 32653265 (2) Maximum influence lines for shears in the trusses for straighttrack and for curved track are shown in Figs. 28-30, and their in-fluence ordinates are the same as those for the end reactions, ex-cept that some of them are of opposite signs. The computations willnot be repeated here. 75.
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