. Railway maintenance engineering, with notes on construction . A. Insulated Angle Deflection, Inches. B. Tests 93.—Insulated Joints. the elastic limit in the ordinary bending test, where the loadrapidly drops off. It seems that at this point shpping takes * As the vertical shear is equal to the horizontal shear this would cor-respond to a wheel load of 48,000 lbs., or by taking a dynamic augment tothe static wheel load of 60 per cent an equivalent static wheel load of 30,000lbs., corresponding to a static axle load of 60,000 lbs. OTHER TRACK MATERIAL 159 place between
. Railway maintenance engineering, with notes on construction . A. Insulated Angle Deflection, Inches. B. Tests 93.—Insulated Joints. the elastic limit in the ordinary bending test, where the loadrapidly drops off. It seems that at this point shpping takes * As the vertical shear is equal to the horizontal shear this would cor-respond to a wheel load of 48,000 lbs., or by taking a dynamic augment tothe static wheel load of 60 per cent an equivalent static wheel load of 30,000lbs., corresponding to a static axle load of 60,000 lbs. OTHER TRACK MATERIAL 159 place between the joint and the rails and most of the load is thencarried by the bar riding on the bolts. Between the two rails the splice bars must carry the entiremoment, and unless the strength of the bar is made sufficientfor this there results an excessive deflection at this point. An insulated joint is shown in Fig. 93A. In the earlier typeswooden insulation was used, but fiber is now generally account of the low crushing strength of the insulating fiberas compared with that of steel, th
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
