Determine the reactions at supports A and B and the force exerted by the pin at C on member BCD of the frame shown in Fig. 1000 Ib 2 ft B C 45° 1500 lb 4 ft 500 lb/ft A F1 ft -4 ft- l ft -4 ft-
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- answer is B=14.528lb D= 14.58lb F= 3lb, but I need help to get to them 1. For the frame below a. Use a free body of the full structure to find the reactions at Pin A and Roller B. b. Determine the magnitude of the forces on pins B, D, and F. Show your ree oeY diagrams. 30 in-lb 10 lb 6" 7" 4" 3" 4" 3" 1. 1.25"Determine the 5940 lb reactions at point A and B of the parallel force system shown in the figure to the right. Neglect the weight of the supporting member. 1170 lb/ft Es.00+ 4.00- -5.00- 6.00- LENGTH IN FEET Question 4 Listen Use the sum of the vertical forces to calculate the magnitude of reaction at A. Your Answer:The truss shown is used to support a 11 kg block with a pin at A and a roller at E. Given a = 1.1 m, b = 0.7 m, c = 1.2 m and d = 1.2 m find the Internal forces in members AB, BD, BC and Co. b d A E The force in member AB Is The force In member BC Is The force In member BD Is The force In member CD Is B D C N In (Click to select) (Click to select) N In N In (Click to select) IN In (Click to select) (Click to select) tension compression V V
- Calculate the forces in members BC, BE, and EF. Solve for each force from an equilibrium equation which contains that force as the only unknown. The forces are positive if in tension, negative if in compression. 5.0 m Answers: BC- BE- A 5.0 m EF= i i i B 5.0 m 5.0 m C 20.5 KN 5.0 m 3.4 m 3 3 3 KN DThe blade of the bulldozer shown below is rigidly attached to a linkage consisting of the arm AB, which is controlled by the hydraulic cylinder BC. There is an identical linkage on the other side of the bulldozer. Applied loads shown are for both linkages and F = 751 kN. Determine the magnitude of the pin reaction at A in kN.Determine the magnitude of the pin reaction at B in kN.Determine the magnitude of the pin reaction at C in kN.Determine the pressure in hydraulic cylinder BC in Pa if the cylinder has a diameter of 80 mm.The truss shown is used to support a 11 kg block with a pin at A and a roller at E. Given a = 1.1 m, b=0.7 m, c=1.3 m and d = 1.3 m find the internal forces in members AB, BD, BC and Co. b A E a The force in member AB is The force in member BC is The force in member BD is The force in member CD is B D C N in (Click to select) N in (Click to select) N in (Click to select) N in (Cack to select)
- 40 kN Situation 9 - The 10-kN and 40-kN forces are applied to the pins at B and C, respectively. Neglect the weights of the members. 3 m 22. Calculate the magnitude of the pin B reaction at A. 10 kN Answer: 67.76 kN E 2 m 23. Calculate the magnitude of the pin reaction at F. Answer: 60.91 kN m 4 m Figure SP-3.20The given bridge truss supports point loads of 200kN at joints B, D, F, H, and J. The structure is supported by pin support at the joint A and roller support at the joint I. Determine the member forces AD, CE, CF, FH, GI, and IJ. Indicate whether the forces are compression or tension. Show your calculation steps in detail and write your answers in the box below. 200 kN 200 kN 200 kN 200 kN 200 kN D F В E 7 m 4 m 3 m -5 m -5 m 5 m -5 mFind the horizontal and vertical reactions at the pin at B. Note that the support at D is fixed. Sign convention for the positive x and y direction applies for the answers. Diagram not to scale Answers: (a) -4 kN, 2 kN (b) 4 kN, -2 kN (c) 1.5 kN, 3 kN (d) -1.5 kN, -3 kN 3 kN B A D TTT 2 m 4 kN 2 m C 1m 2 m 5 m
- Calculate the forces in members BC, BE, and EF. Solve for each force from an equilibrium equation which contains that force as the only unknown. The forces are positive if in tension, negative if in compression. 3.5 m BC= Answers: BE = A 3.5 m EF= G i i i B 3.5 m 3.5 m C 2.1 m E 3.5 m KN KN 27.0 KN kN D40 kN C Situation 9 - The 10-kN and 40-kN forces are applied to the pins at B and C, respectively. Neglect the weights of the members. 3 m 22. Calculate the magnitude of the pin 10 kN reaction at A. E Answer: 67.76 kN 23. Calculate the magnitude of the pin 2 m reaction at F. Answer: 60.91 kN AF 4 m Figure SP-3.20Calculate the forces in members BC, BE, and EF. Solve for each force from an equilibrium equation which contains that force as the only unknown. The forces are positive if in tension, negative if in compression. 5.0 m BC = A 5.0 m B 5.0 m Answers: BE = G i i EF= i 5.0 m C 3.4 m E 23.0 KN 5.0 m kN kN kN D