4-81. Two couples act on the frame. If d = 4 ft, determinethe resultant couple moment. Compute the result byresolving each force into x and y components and (a) findingthe moment of each couple (Eq. 4-13) and (b) summing themoments of all the force components about point B.1 ft80 lb80 lb554B13y-2 ft-30°3d3 ft-3 ft50 lb50 lbProbs. 4-79/80/8130°

4-81. Two couples act on the frame. If d = 4 ft, determin the resultant couple moment. Compute the result b resolving each force into x and y components and (a) findin the moment of each couple (Eq. 4-13) and (b) summing th moments of all the force components about point B.

4-81. Two couples act on the frame. If d = 4 ft, determin the resultant couple moment. Compute the result b resolving each force into x and y components and (a) findin the moment of each couple (Eq. 4-13) and (b) summing th moments of all the force components about point B.

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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Question

4-81. Two couples act on the frame. If d = 4 ft, determine
the resultant couple moment. Compute the result by
resolving each force into x and y components and (a) finding
the moment of each couple (Eq. 4-13) and (b) summing the
moments of all the force components about point B.
1 ft
80 lb
80 lb
5
5
4
B
13
y
-2 ft-
30°
3
d
3 ft
-3 ft
50 lb
50 lb
Probs. 4-79/80/81
30°

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