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Method of Sections

Sample Problem 4/4

4/29 Determine the forces in members CG and GH.

4/30 Determine the force in member AE of the loaded truss.

4/31 Determine the force in member BC of the loaded truss.

4/32 Determine the forces in members GH and CG for the truss loaded and supported as shown. Does the statical indeterminacy of the supports affect your calculation?

4/33 Determine the force in member DG of the loaded truss.

4/34 Determine the force in member BE of the loaded truss.

4/35 Determine the forces in members DE and DL.

4/36 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.

4/37 Calculate the forces in members BC, CD, and CG of the loaded truss composed of equilateral triangles, each of side length 8 m.

4/38 Determine the forces in members BC and FG of the loaded symmetrical truss. Show that this calculation can be accomplished by using one section and two equations, each of which contains only one of the two unknowns. Are the results affected by the statical indeterminacy of the supports at the base?

4/39 The truss shown is composed of 45° right triangles. The crossed members in the center two panels are slender tie rods incapable of supporting compression. Retain the two rods which are under tension and compute the magnitudes of their tensions. Also find the force in member MN.

4/40 Determine the force in member BF.

4/41 Determine the forces in members CD, CJ, and DJ.

4/43 Determine the forces in members DE, DL, LM, and EL of the loaded symmetrical truss.

4/45 Calculate the forces in members CB, CG, and FG for the loaded truss without first calculating the force in any other member.

4/46 The hinged frames ACE and DFB are connected by two hinged bars, AB and CD, which cross without being connected. Compute the force in AB.




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