PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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3. Use the Method of Sections for this problem. From drawing a FBD of the entire system
and summing the moments about point A, you find that the reaction force at roller
D=26kN ↑.Determine the force in members EF, BE, and BC of the truss and state if these
members are in tension or compression. Set P₁=18kN, P₂=24kN, and P3=12kN.
3m
3m
3 m
3m
E
P3
F
A
B
P₁
P₁
Determine the reactions of the frame’s supports and the horizontaland vertical components of the forces for joints A, B, and C as theyact on member AC. Refer to the figure below.
Determine the force in members CF and GC of the roof truss. State whether the members are in tension or compression. The reactions at the supports have been calculated.
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- 6 An external force is applied to the truss. Draw the free body diagram and by using method of joint determine the forces in member BD and CD 35 kN 4.5 m C E 4.5 m A 35 kN 4.5 m C E 4.5 m 6 m 6 marrow_forward1. Find the support reactions at A and C. Using method of joints, determine the force in each member of the three-bar truss shown to 3 m the right. Specify tension or compression for each member force. (Note: joint A is a pin and joint C is a roller.) Ans: Ar = 48 kN →, Ay = 84 kN 1, Cx = 48 kN+, FAB = 52 kN (T), FAC = 64 kN (T), FBC = 80 kN (C) 1.25 m %3D %3D %3D 4 m 84 kNarrow_forwardFind the support reactions. Determine the force in each member of the truss. Draw a summary diagram clearly showing your results. Be sure to identify any zero force members in the summary diagram.arrow_forward
- Determine the forces in members BG and BF of the loaded truss. State if the members are in tension (T) or compression (C). Use Method of Joints and check using Method of Section.arrow_forwardDetermine the force in members LK, KC, and CD of the Pratt truss. State if the members are in tension or compression. Take that P₁ = 21 kN, P₂ = 31 kN and P3 = 42 kN.(Figure 1) Figure 3 m T2m- K B C D E P₁ P₂ P3 H F 1 of 1 m2 m2 m2 m2 m--2 m-arrow_forwardDetermine the forces in each member of the truss, and state if the members are in tension or compression. The supports at A and E are rollers. You must include FBDs. E 3 m 2 m- 1 m 1 m 2 m 600 Narrow_forward
- Determine the force in members DC, HI, and JI of the truss. State if the members are in tension or compression. Take that P1 = 1070lb and P2 = 1710lb . Suggestion: Use the sections shown. (Give neat and clean answer I will give like else dislike)arrow_forwardThe truss system shown below is supported by a pin at A and a roller at G. Determine the value of the support reactions at A and G. Use method of joint to find forces in member GA and GF. State if these members are in tension or compression.arrow_forwardDetermine the forces in members CD, CJ, and DJ. The forces are positive if in tension, negative if in compression. Assume a = 9 ft, b = 8 ft, d = 6 ft. M CD Answers: CJ = D DJ= i i i L b B L -6 panels at d K C D L L L E H F L Larrow_forward
- 3. For the truss shown, draw the free body diagram for joints A, B, C, and D. Also, using equilibrium equations for ijust node B, find the force in member AB. 250 Ib A 30° 8 ft В 6 ft 6 ftarrow_forwardDetermine the force in each member of the truss. Indicate if the members are in tension or compression. Assume all members are pin connected. T 12 ft 2k 10 ft- H B 3k 3k D 10 ft- -10 ft-10 ft- Earrow_forwardUse the method of sections to determine the force in member CE of the -truss. State if the member is in tension or compression. 3 m 3 m -4 m- 4 m 4 m- 1.75 kN 2 kN 1.5 kN 2 kN F 1 kN D 0.75 kN 6 m A E 6 m 6 m 6 marrow_forward
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