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Determine the moment at the fixed support A for the frame shown in Fie. 10-14a. The support at B is a rocker. El is constant. 100 lb/ft 4 ft 5 ft 8 ft A 3 ft- (a) Fig. 10-14

Determine the moment at the fixed support A for the frame shown in Fie. 10-14a. The support at B is a rocker. El is constant. 100 lb/ft 4 ft 5 ft 8 ft A 3 ft- (a) Fig. 10-14

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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Delermine the moment at the fixed support A for the frame shown i Fig. 10-14a. The support at B is a rocker. El is constant. 10.6 100 lb/ft 4 ft 5 ft 8 ft (a) Fig. 10-14 SOLUTION Principle of Superposition. The frame is indeterminate to the first degree. A direct solution for M can be obtained by choosing this as the redundant. Thus the capacity of the frame to support a moment at A is removed and therefore a pin is used at A for support. The principle of superposition applied to the frame is shown in Fig. 10-14b. Compatibility Equation. Reference to point A in Fig. 10-14b requires ((+) (1) As in the preceding example, 0A and aAA will be computed using the method of virtual work. The frame's x coordinates and internal moments are shown in Figs. 10-14c and 10-14d. 100 lb/ft 100 lb/ft %3D + MACAA MA actual frame redundant MA applied primary structure (b)
Transcribed Image Text:Delermine the moment at the fixed support A for the frame shown i Fig. 10-14a. The support at B is a rocker. El is constant. 10.6 100 lb/ft 4 ft 5 ft 8 ft (a) Fig. 10-14 SOLUTION Principle of Superposition. The frame is indeterminate to the first degree. A direct solution for M can be obtained by choosing this as the redundant. Thus the capacity of the frame to support a moment at A is removed and therefore a pin is used at A for support. The principle of superposition applied to the frame is shown in Fig. 10-14b. Compatibility Equation. Reference to point A in Fig. 10-14b requires ((+) (1) As in the preceding example, 0A and aAA will be computed using the method of virtual work. The frame's x coordinates and internal moments are shown in Figs. 10-14c and 10-14d. 100 lb/ft 100 lb/ft %3D + MACAA MA actual frame redundant MA applied primary structure (b)
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