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7-27. Determine (approximately) the force in each trus member of the portal frame. Also, find the reactions at th column supports A and B. Assume all members of the trus and the columns to be pin connected at their ends. 1.5 m, 1.5 m -3 m- F G H 10 kN - 2 m 12 kN – E 8 m B -3 m -3 m- Prob. 7-27

7-27. Determine (approximately) the force in each trus member of the portal frame. Also, find the reactions at th column supports A and B. Assume all members of the trus and the columns to be pin connected at their ends. 1.5 m, 1.5 m -3 m- F G H 10 kN - 2 m 12 kN – E 8 m B -3 m -3 m- Prob. 7-27

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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PROBLEMS 299 7-27. Determine (approximately) the force in each truss member of the portal frame. Also, find the reactions at the column supports A and B. Assume all members of the truss and the columns to be pin connected at their ends. 7-30. Draw (approximately) the moment diagram for column ACD of the portal. Assume all truss members and the columns to be pin connected at their ends. Also determine the force in members FG, FH, and EH. 7-31. Solve Prob. 7-30 if the supports at A and B are fixed instead of pinned. 1.5 m, 1.5 m -3 m- IG F 10 kN 2 m 6 ft 12 kN IC ID 6 It 4k 3 ft 8 im 12 ft B -8 ft--8 ft--8 ft--8 ft- -3 m- -3 m- Probs. 7-30/31 Prob. 7-27 *7-28. Determine (approximately) the force in members GF, GK, and JK of the portal frame. Also find the reactions at the fixed column supports A and B. Assume all members of the truss to be connected at their ends. *7-32. Draw (approximately) the moment diagram for column AJI of the portal. Assume all truss members and the columns to be pin connected at their ends. Also determine the force in members HG, HL, and KL. 7-29. Solve Prob. 7-28 if the supports at A and B are pin connected instead of fixed. 7-33. Solve Prob. 7-32 if the supports at A and B are fixed instead of pinned. 6 @ 1.5 m = 9 m - F G 2 kN T15m ! 1.5 m 6 ft 1 m 4 k H 3 ft 4 kN J K L M N O C K C 12 ft 4 m B. B -8 ft 8 ft--8 ft--8 ft- Probs. 7-28/29 Probs. 7-32/33
Transcribed Image Text:PROBLEMS 299 7-27. Determine (approximately) the force in each truss member of the portal frame. Also, find the reactions at the column supports A and B. Assume all members of the truss and the columns to be pin connected at their ends. 7-30. Draw (approximately) the moment diagram for column ACD of the portal. Assume all truss members and the columns to be pin connected at their ends. Also determine the force in members FG, FH, and EH. 7-31. Solve Prob. 7-30 if the supports at A and B are fixed instead of pinned. 1.5 m, 1.5 m -3 m- IG F 10 kN 2 m 6 ft 12 kN IC ID 6 It 4k 3 ft 8 im 12 ft B -8 ft--8 ft--8 ft--8 ft- -3 m- -3 m- Probs. 7-30/31 Prob. 7-27 *7-28. Determine (approximately) the force in members GF, GK, and JK of the portal frame. Also find the reactions at the fixed column supports A and B. Assume all members of the truss to be connected at their ends. *7-32. Draw (approximately) the moment diagram for column AJI of the portal. Assume all truss members and the columns to be pin connected at their ends. Also determine the force in members HG, HL, and KL. 7-29. Solve Prob. 7-28 if the supports at A and B are pin connected instead of fixed. 7-33. Solve Prob. 7-32 if the supports at A and B are fixed instead of pinned. 6 @ 1.5 m = 9 m - F G 2 kN T15m ! 1.5 m 6 ft 1 m 4 k H 3 ft 4 kN J K L M N O C K C 12 ft 4 m B. B -8 ft 8 ft--8 ft--8 ft- Probs. 7-28/29 Probs. 7-32/33
PROBLEMS 297 7-17. Determine (approximately) the internal moments at joint H from HG, and at joint.J from JI and JK. Sec. 7.4 7-19. Determine (approximately) the support reactions at A and B of the portal frame. Assume the supports are (a) pinned, and (b) fixed. 5 kN/m 12 kN D, K 5 kN/m 5 kN/m 6 m H G B D 3 m 4 m 4m Prob. 7-17 Prob. 7-19 *7-20. Determine (approximately) the internal moment and shear at the ends of each member of the portal frame. Assume the supports at A and D are partially fixed, such that an inflection point is located at h/3 from the bottom of 7-18. Determine (approximately) the internal moments at joint F from FG, and at joint E from ED of the frame. each column. 300 lb/ft P F H 800 Ib/ft E D B 20 ft 15 ft Prob. 7-18 Prob. 7-20
Transcribed Image Text:PROBLEMS 297 7-17. Determine (approximately) the internal moments at joint H from HG, and at joint.J from JI and JK. Sec. 7.4 7-19. Determine (approximately) the support reactions at A and B of the portal frame. Assume the supports are (a) pinned, and (b) fixed. 5 kN/m 12 kN D, K 5 kN/m 5 kN/m 6 m H G B D 3 m 4 m 4m Prob. 7-17 Prob. 7-19 *7-20. Determine (approximately) the internal moment and shear at the ends of each member of the portal frame. Assume the supports at A and D are partially fixed, such that an inflection point is located at h/3 from the bottom of 7-18. Determine (approximately) the internal moments at joint F from FG, and at joint E from ED of the frame. each column. 300 lb/ft P F H 800 Ib/ft E D B 20 ft 15 ft Prob. 7-18 Prob. 7-20
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