etermine the reactions RA and Rg of the beam loaded as shown in the figure. 600 lb 200 lb 5'- 4' A RA 15 Rg B.
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- The cantilever beam AB shown in the figure has an extension BCD attached to its free end. A force P acts at the end of the extension. Find the ratio aiL so that the vertical deflection of point B will be zero. Find the ratio aiL so that the angle of rotation at point B will be zero.An S6 × 12.5 steel cantilever beam AB is supported by a steel tic rod at B as shown. The tie rod is just taut when a roller support is added at Cat a distance s to the left of £, then the distributed load q is applied to beam segment AC, Assume E = 30 × 106 psi and neglect the self-weight of the beam and tie rod. Sec Table F-2(a) in Appendix F for the properties of the S-shape beam. (a) What value of uniform load q will, if exceeded, result in buckling of the tie rod if L1, =6 ft, s = 2 ft, H = 3 ft, and d = 0.25 in.? (b) What minimum beam moment of inertia ibis required to prevent buckling of the tie rod if q = 200 lb/ft, L1, = 6 ft, H = 3 ft, d = 0.25 in., and s = 2 ft? (c) For what distance s will the tic rod be just on the verge of buckling if q = 200 lb/ft, L1= 6 ft, M = 3 ft, and d = 0.25 in.?The deflection curve for a cantilever beam AB (see figure) is given by v=q0x2360L2EI(45L440L3x+15L2x2x4) Describe the load acting on the beam. Determine the reactions RAand M 4at the support.
- The figure shows a nonprismatic, propped cantilever beam AB with flexural rigidity 2EI from A to C and EI from C to B. Determine all reactions of the beam due to the uniform load of intensity q. Hint: Use the results of Problems 9.7-1 and 9.7-2.A two-span beam with spans of lengths L and L/3 is subjected to a temperature differential with temperature T1on its upper surface and T2on its lower surface (see figure). Determine all reactions for this beam. Use the method of superposition in the solution. Assume the spring support is unaffected by temperature. What are the reactions when k ?-10 The simple beam AB shown in the figure supports two equal concentrated loads P: one acting downward and the other upward. Determine the angle of rotation A at the left-hand end, the deflection 1under the downward load, and the deflection 2 at the midpoint of the beam.
- A framework A BCD is acted on by counterclockwise moment M at A (see figure). Assume that Elis constant. Find expressions for reactions at supports B and C Find expressions for angles of rotation at A, 5, C, and Z). Find expressions for horizontal deflections SÂand SD, If length LA3= L12, find length LCDin terms of L for the absolute value of the ratio |sysj=i.Derive the equation of the deflection curve for beam AB with sliding support at A and roller at B* carrying a triangularly distributed load of maximum intensity q0(see figure). Also, determine the maximum deflection ôniill of the beam. Lsc the fourth-order differential equation of the deflection curve (the load equation).A framework A BCD is acted on by force P at 2L/3 from 8(see figure). Assume that 7f/is constant. Find expressions for reactions at supports B and C. Find expressions for angles of rotation at A, B* C, and D. Find expressions for horizontal deflections èAand ôD. If length LAB= L i 2, find length LCDin terms of L for the absolute value of the ratio
- Determine the angle of rotation 0Band deflectionA triangularly distributed 1oad with a maximum intensity of q0= 10 lb/ft acts on propped cantilever beam AB. If the length L of the beam is 10 ft, find the reactions at A and B.A temporary wood flume serving as a channel for irrigation water is shown in the figure. The vertical boards forming the sides of the flume are sunk in the ground, which provides a fixed support. The top of the flume is held by tic rods that are tightened so that there is no deflection of the boards at that point. Thus, the vertical boards may be modeled as a beam AB, supported and loaded as shown in the last part of the figure. Assuming that the thickness t of the boards is 1,5 in., the depth d of the water is 40 in., and the height h to the tie rods is 50 in., what is the maximum bending stress in the boards? Hint: The numerically largest bending moment occurs at the fixed support.