Determine the reactions and forces (internal loadings) for points A, B, C, D and E as shown in the figure below. FN kip SN kip/ft B 6 ft 6 ft - 4 ft 4 ft
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Please read the instructions carefully and do what are asks. Illustrate and show the COMPLETE SOLUTIONS.
Consider FN=70, SN=50.
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- Two separate cables AC and BC support a sign structure of weight W = 1575 lb attached to a building. The sign is also supported by a pin support at O and a lateral restraint in the '-direction at D. (a) Find the tension in each cable. Neglect the mass of the cables. (b) Find the average stress in each cable if the area of each cable is Ae= 0.471 in2.Solve the preceding problem (W 250 × 44.8) if the resultant force P equals 110 kN and E = 200 GPa.A plane Frame with pin supports at A and E has a cable attached at C, which runs over a friction-less pulley at F(see figure). The cable Force is known to be 500 lb. (a) Find reactions at supports A and E. (b) Find internal stress resultants N, V, and M at point H.
- A long re Lai nine: wall is braced by wood shores set at an angle of 30° and supported by concrete thrust blocks, as shown in the first part of the figure. The shores are evenly spaced at 3 m apart. For analysis purposes, the wall and shores are idealized as shown in the second part of the figure. Note that the base of the wall and both ends of the shores are assumed to be pinned. The pressure of the soil against the wall is assumed to be triangularly distributed, and the resultant force acting on a 3-meter length of the walls is F = 190 kN. If each shore has a 150 mm X 150 mm square cross section, what is the compressive stressA plane frame with a pin support at A and roller supports at C and £ has a cable attached at E. which runs over Frictionless pulleys al D and B (see figure). The cable force is known to be 400 N. There is a pin connection just Lo the left of joint C. (a) Find reactions at supports^, C, and E. (b) Find internal stress, resultants N, V, and M just to the right of joint C. (c) Find resultant force in the pin near C.Find support reactions at 4 and Band then use the method of joints to find all member forces. Let b = 3 m and P = 80 kN.
- Solve the preceding problem if F =90 mm, F = 42 kN, and t = 40°MPa,3-23 A 200-lb trap door (AD) is supported by a strut (BC) which is pin connected to the door at B (see figure). (a) Find reactions at supports A and C. (b) Find internal stress resultants N, V, and M on the trap door at 20 in. from A.A mountain bike is moving along a flat path at constant velocity. At some instant, the rider (weight = 670 N) applies pedal and hand forces, as shown in the figure part a. (a) Find reaction forces at the front and rear hubs. (Assume that the bike is pin supported at the rear hub and roller supported at the front hub.) (b) Find internal stress resultants N, V, and M in the inclined seat post (see figure part b
- The Z-section of Example D-7 is subjected to M = 5 kN · m, as shown. Determine the orientation of the neutral axis and calculate the maximum tensile stress c1and maximum compressive stress ocin the beam. Use the following numerical data: height; = 200 mm, width ft = 90 mm, constant thickness a = 15 mm, and B = 19.2e. Use = 32.6 × 106 mm4 and I2= 2.4 × 10e mm4 from Example D-7Question 1Two bars ABC and CD are connected at joint C. Bar ABC is pinned-supported at A while bar DC is pinned-supported at joint D as shown in the Figure Q1. Determine:(a) The reaction forces at joints A and D(b) The resultant force at joint A and its direction(c) The internal loadings at the midpoint of member BCThe bar supported by a pin at B and a cable at A carries a load of 260 N at C. Neglecting the weight of the bar,a.) Determine the normal force 7 m from A.b.) Determine the shear force 7 m from A.c.) Determine the bending moment 7 m from Ad.) Determine the torsion 7 m from A SHOW COMPLETE SOLUTIONS DRAW FBD