Question

Problem 5: Railroad ties must be designed to resist large shear loadings. If the tie is subjected to the 34-kip rail loadings and an assumed uniformly distributed ground reaction, determine the intensity w for equilibrium, and calculate the maximum shear stress in the tie at section a-a, which is located just to the left of the rail. 34 kip 34 kip w -1.5 ft- -3 ft -1.5 ft 6 in. 1 8 in.

Answer 1

34 kip 34 kip มานานนาน а isft 347 1547 Ely 5o = wx6 = 34x3 w 34. Kip/4+. Maximum shear force at (ara) section. (To) she dear force at scetton (a-a) Vo = 34X (4.5) -34 Vo= 17 kip. 1 loin NA - I= moment of inertia abort N-A I - 8X63 144 in) 8 in ☆ 12 To: Vox 17 X103 (8*3*3) I b 144 X 8 To = 531.25 lblenz Answer

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