a) What is a truss? Explain shortly in your own words, and illustrate with one example. b) For the truss in the figure below, determine the zero-force members and give a short explanation to support your answer. B C D A H G F -1.5 m-1.5 m-1.5 m-1.5 m- 2 m 2 m E
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- A large precast concrete panel for a warehouse is raised using two sets of cables at two lift lines, as shown in the figure part a. Cable 1 has a length L1 = 22 Ft, cable 2 has a length L2= 10 ft, and the distance along the panel between lift points Band D is d = 14 ft (see figure part b). The total weight of the panel is W = 85 kips. Assuming the cable lift Forces F at each lift line are about equal, use the simplified model of one half of the panel in figure part b to perform your analysis for the lift position shown. Find the required cross-sectional area AC of the cable if its breaking stress is 91 ksi and a factor of safety of 4 with respect to failure is desired.a) What is a truss? Explain shortly in your own words, and illustrate with one example. b) For the truss in the figure below, determine the zero-force members and give a short explanation to support your answer. B C D A H -1.5 m- G F -1.5 m 1.5 m-1.5 m-- 2 m 2 m Eb) For the truss in the figure below, determine the zero-force members and give a short explanation to support your answer. B C D A H G F -1.5 m-1.5 m- 1.5 m-1.5 m- 2m 2 m
- 3) Calculate the internal forces in members DF, CE, and BD of the given truss shown in the figure below. Use the Method of Sections. G0ON GOON GOON GOON G0ON 1,5m 600 N B. 600 N A 6 at 1-20m = 7.20ma) What is a truss? Explain shortly in your own words, and illustrate with one example. b) For the truss in the figure below, determine the zero- force members and give a short explanation to support your answer. A -3 m- F 44 B C P -3 m -3 m E 000 D P 3 mUsing the method of sections, analyse the truss shown in Figure 8 below regarding forces in members ED, DF and FC. 1.5 m 10 kN- 1 m Ec 1 m D. 1 m 7777 Figure 8 /4 1/4
- The truss shown below has a hinge support at point A, a horizontal roller at point B, and is subjected to two point loads (P1 and P2). If P1- 30 kN and P2 - 55 kN, what is the force, in kN, in member AE? NOTE: Enter a positive value if the member is in Tension and a negative value if the member is in Compression. PI (KN) 60 A 4 m 4 m P2 (kN)PROBLEM: Determine the forces in each member using any methoddiscussed in your theory of structures/mechanics. Using Software is notallowed. Show complete solution and tabulate your answers indicatingwhether it is compression or tension. Use Pn = 205 kN, Po = Zero. a) From the Problem and the image , Design one tension member, use either a double angle of a wt section. Check its adequacy using 1 line of bolts (three bolts in a line spaced at 75mm on centers) Assume a bolt diameter from 16-22mm. Use A 36 for all steel. Neglect block shear.Home Work (Compound Truss) For the truss shown in figure, find the axial forces for the members (HG), (GI) and (EI). Hint: take the part (EDFC) as free body diagram. 3m 2m 2m] 3m 5kN F G 2m2m 2m 2m 2m 2m 3m
- Solve the problem shown below. Each answer is worth equal credit. Show all necessary steps of your work clearly to obtain credit. Final answer must be to 3 significant figures and contain units and be in the box. Using P1= 6.0 kips, then determine the reactions and member forces of the truss. a) List reactions at A and K? (Use positive, +, to indicate a reaction that is up, to the right, and counterclockwise.) [30 pts] RAX: RAY: Rkx: Rky: b) Determine the member forces using either the method of joints or method of sections. (Include Units and the correct sign in the answer, (Use: '+'= tension, & '-' = compression) J I H G 4 ft K A -3 ft- B P1 -3 ft- C P1 -3 ft D P1 E -3 ft 3 ft- P1 P1 F FBC: FCJ: FI: FEG: FDH: FIC:Consider the truss shown in the figure below. Calculate the force on the member BC. A 5 ft D B 10 Ibs 10 Ibs 10 ft 10 ft A 60 Ibs, Compressive B 60 Ibs, Tensile 20 Ibs, Compressive D 20 Ibs, TensileA new art exhibit featuring mobile works is going up in the Holland, MI, area. One piece is shown in the figure. The 155-N uniform beam is pinned to the ground by a pivot. The beam is supported by a cable (attached to the center of the beam) to allow for each of the shoes to hang freely. Each individual shoe has a weight of 9.5-N. If one shoe is attached two-fifths of the way up the beam and another shoe is attached and three-fifths of the way up the beam, with θc = 16.5° and θb = 33.6° as shown in the figure, what is the tension in the cable, in newtons? What is the x-component of the force, in newtons, that the pivot exerts on the bottom of the beam? Use the coordinate system specified in the figure. What is the y-component of the force, in newtons, that the hinge exerts on the bottom of the beam? Use the coordinate system specified in the figure.