2) The figure shows a truss which is pin connected at C and supported by a roller atD. It carries the vertical loads of 200 kN and 100 kN at joints A and E,respectively. Use the Method of Joints.a) Calculate the force in member DE.b) Calculate the force in member BE.c) Calculate the force in member BC.4 mB2 m200KNtookN

Answered: Image /qna-images/answer/594c1fac-6fef-49b3-adb4-f2348dddac94.jpg

Answered: 2) The figure shows a truss which is…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The structure shown below is a simplified tower crane. It carries a shipping crate suspended from B that has a weight of 116 kN . The main jib DCB (in green) has a weight of 17 kN concentrated in the center of the beam. This is pinned to the main body at D and is supported by a cable that is routed through pulleys at F and G and is attached to a concrete counterweight J. The main body AEFG (in yellow) is fixed to the ground at A. Various geometry: h1= 26.5 m h2= 3.9 m h3= 5.1 m l1= 12.8 m l2= 17 m l3= 4.3 mm θ= 57.6 degrees Assumptions : The main body AEFG can be considered massless. The cable CFGJ is massless. The pulleys at F and G can be considered massless, frictionless, and of negligible diameter. All bodies are considered rigid. Questions: Determine the weight of counterweight J in order for the main jib DCB to be horizontal. Determine the magnitude of the x and y components of force at pin D. Determine the reactions at fixed support A.
Problem 3 The boom AB supports a load of W = 720 lb. The boom is supported by a ball-and-socket joint at A and by two cables, BC and BD. Find the tension in each cable and the axial force in the boom, assuming that point C is 4 inches vertically above the position shown in the figure and the other dimensions are unchanged. Neglect the weight of the boom. -9 in.- 8 in. B 12 in. W = 720 lb %3D
The bar ABCD of negligible weight has a built in support at point A. It is subject to loads as shown in the figure. a) draw the FBD of the bar. b) write the external loads in their vector forms. c) write the 3D static equilibrium equations for the bar and solve for the reactions.
a) Draw the FBD of the entire truss and use this diagram to determine the reaction forces at the supports. Note the truss is supported by a roller at E Using the Method of Sections, determine the forces in member a) BC (5 b) HC c) HG Show the FBD of the truss after the cut is performed. State whether the members are in tension or compression. 5m Figure 2 B 4 m H 30 kN 5 m G 60 kN 5 m D F 30 kN 5 m E
4 kN 3 m 4 m Use the method of joints to find all reaction and member forces in the trusses.
m 4: The maximum force any member can support is 24 kN in tension and 35 kN in compression, determine the largest permissible mass "m" which may be supported by the truss. Hint: use the method of joints to calculate all of the member forces in terms of the weight (say "w"); then choose the largest positive and negative member forces to determine m = w/g. There is a "rocker" support at "E"; this is the same as a roller support. A E 4 m B D 4 m 30° m
The frame in (Figure 1) supports the 350lb load. The pulley at C has a radius of 0.5 ft. The pulley at D has a radius of 0.25 ft. a) Determine the reaction at pin A. b) Determine the reaction at pin B.
1) Find the reactions at supports A and E. Also, find the force in each member of the truss and report if the member is in compression or tension. The magnitudes of forces F1 and F2 are 5 and 15 kN, respectively. A,8,C,D,E,6,H,I,J are the joints of the truss B hinge 1.5. 1.5m E roller 4m 4m
Itranscript Required Information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. The truss shown consists of six members and is supported by a short link at A, two short links at B, and a ball-and-socket at D. Consider load of 420 lb applied at C. 10 ft Bol 24 t Determine the force in each of the members. The force in member AC (FAC) is The force in member BC (FBC) is The force in member CD (FCD) is The force in member AB (FAB) is The force in member BD (FBD) is The force in member AD (FAD) is Ib(Click to select) lb (Click to select) ✔ lb (Click to select) V lb (Click to select) b(Click to select) V lb (Click to select) V
4. Consider the truss shown in the Figure 6 below: 250 KN C 100 KN 450 450 5m Figure 6 a. Calculate the reactions at joints A and B b. Using the method of joints, calculate the forces in members AB, AC and BC. с. State if the forces are in tension or compression
For the pinned frame in the figure, calculate the pin forces acting at point B, on member BD (magnitude and direction).Hint: Look for two-force members
For the truss, which shows the reactions found at the supports at A and E, answer the following: a)Find the member forces at A and B using the method of joints. b)Find the member forces of CD, GD, and GF using the method of sections. (ps. this question is from an architectural structures class, I am struggling to begin)

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