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To learn to apply the method of joints to a truss in a systematic way and thereby find the loading in each member of the truss. In analyzing or designing trusses, it is necessary to determine the force in each member of the truss. One way to do this is the method of joints. The method of joints is based on the fact that if the entire truss is in equilibrium, each joint in the truss must also be in equilibrium (i.e., the free-body diagram of each joint must be balanced). Consider the truss shown in the diagram. The applied forces are P₁ = 630 lb and P₂ = 410 lb and the distance is d = 8.50 ft. (Figure 1) igure d B D 1 of 1 Having found FCD in the analysis of joint C, there are now only two unknown forces acting on joint D. Determine the two unknow Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. ΑΣΦ. 11 vec FDB = FDE = Submit Request Answer Part E - The Sense of the Forces Submit State if the members considered in part D are in tension or compression. Complete each sentence by dragging the appropriate word into the blank. The words can be used more than once. compression tension Completed Previous Answers Part F - The Forces in the Members at Joint B FBA=, FBE = ? Submit Request Answer AΣ vec Member DB is in tension lb, lb Having found FCD in the analysis of joint C and FDB in the analysis of joint D, there are now only two unknown forces acting or B. Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. Member DE is in compression ? Reset Help lb, lb

To learn to apply the method of joints to a truss in a systematic way and thereby find the loading in each member of the truss. In analyzing or designing trusses, it is necessary to determine the force in each member of the truss. One way to do this is the method of joints. The method of joints is based on the fact that if the entire truss is in equilibrium, each joint in the truss must also be in equilibrium (i.e., the free-body diagram of each joint must be balanced). Consider the truss shown in the diagram. The applied forces are P₁ = 630 lb and P₂ = 410 lb and the distance is d = 8.50 ft. (Figure 1) igure d B D 1 of 1 Having found FCD in the analysis of joint C, there are now only two unknown forces acting on joint D. Determine the two unknow Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. ΑΣΦ. 11 vec FDB = FDE = Submit Request Answer Part E - The Sense of the Forces Submit State if the members considered in part D are in tension or compression. Complete each sentence by dragging the appropriate word into the blank. The words can be used more than once. compression tension Completed Previous Answers Part F - The Forces in the Members at Joint B FBA=, FBE = ? Submit Request Answer AΣ vec Member DB is in tension lb, lb Having found FCD in the analysis of joint C and FDB in the analysis of joint D, there are now only two unknown forces acting or B. Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. Member DE is in compression ? Reset Help lb, lb

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Learning Goal: To learn to apply the method of joints to a truss in a systematic way and thereby find the loading in each member of the truss. In analyzing or designing trusses, it is necessary to determine the force in each member of the truss. One way to do this is the method of joints. The method of joints is based on the fact that if the entire truss is in equilibrium, each joint in the truss must also be in equilibrium (i.e., the free-body diagram of each joint must be balanced). Consider the truss shown in the diagram. The applied forces are P₁ = 630 lb and P₂ = 410 lb and the distance is d = 8.50 ft. (Figure 1) Figure A E 30° B D 30° d C 1 of 1 Part D - The Forces in the Members at Joint D Having found FCD in the analysis of joint C, there are now only two unknown forces acting on joint D. Determine the two unknown forces on joint D. Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. FDB =, Submit FDE = Submit Part E - The Sense of the Forces Request Answer compression Completed 17 ΑΣΦ State if the members considered in part D are in tension or compression. Complete each sentence by dragging the appropriate word into the blank. The words can be used more than once. tension Submit Previous Answers Part F - The Forces in the Members at Joint B FBA=, FBE = ↓↑ vec VE ΑΣΦ Request Answer ? Having found FCD in the analysis of joint C and FDB in the analysis of joint D, there are now only two unknown forces acting on joint B. Determine the two unknown forces on joint B. Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. vec Member DB is in tension lb, lb Member DE is in compression ? Reset Help lb, lb
Transcribed Image Text:Learning Goal: To learn to apply the method of joints to a truss in a systematic way and thereby find the loading in each member of the truss. In analyzing or designing trusses, it is necessary to determine the force in each member of the truss. One way to do this is the method of joints. The method of joints is based on the fact that if the entire truss is in equilibrium, each joint in the truss must also be in equilibrium (i.e., the free-body diagram of each joint must be balanced). Consider the truss shown in the diagram. The applied forces are P₁ = 630 lb and P₂ = 410 lb and the distance is d = 8.50 ft. (Figure 1) Figure A E 30° B D 30° d C 1 of 1 Part D - The Forces in the Members at Joint D Having found FCD in the analysis of joint C, there are now only two unknown forces acting on joint D. Determine the two unknown forces on joint D. Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. FDB =, Submit FDE = Submit Part E - The Sense of the Forces Request Answer compression Completed 17 ΑΣΦ State if the members considered in part D are in tension or compression. Complete each sentence by dragging the appropriate word into the blank. The words can be used more than once. tension Submit Previous Answers Part F - The Forces in the Members at Joint B FBA=, FBE = ↓↑ vec VE ΑΣΦ Request Answer ? Having found FCD in the analysis of joint C and FDB in the analysis of joint D, there are now only two unknown forces acting on joint B. Determine the two unknown forces on joint B. Express the magnitudes of the forces to three significant figures. Separate your answers with a comma. vec Member DB is in tension lb, lb Member DE is in compression ? Reset Help lb, lb
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