(6 in.) 28 k (6 in 3 (6 in 15 ft (4 in) A, O.D. (6 in.) (6 in) (6 in.?) A,1 25 k 25 k 3 panels at 20 ft= 60 ft E= 29,000 ksi (a) Indeterminate Truss 24 28 k 18 53.33 167 25 28 52 B 42.67 42.67 25 k 25 k 18 32 (b) Primary Truss Subjected to Extemal Loads-F, Forces F DIk X D, (e) Primary Truss Subjected to Unit Value of Redundant D,- "n Forces 24 28 k 53.33 18 11.67 25 A A,- 17.78 6.22 3.11 D,-45.78 3.11 25 k 25 k A, = 18 D, 32 (d) Support Reactions and Member Forces for Indeterminate Truss FIG. 136 9.

(6 in.) 28 k (6 in 3 (6 in 15 ft (4 in) A, O.D. (6 in.) (6 in) (6 in.?) A,1 25 k 25 k 3 panels at 20 ft= 60 ft E= 29,000 ksi (a) Indeterminate Truss 24 28 k 18 53.33 167 25 28 52 B 42.67 42.67 25 k 25 k 18 32 (b) Primary Truss Subjected to Extemal Loads-F, Forces F DIk X D, (e) Primary Truss Subjected to Unit Value of Redundant D,- "n Forces 24 28 k 53.33 18 11.67 25 A A,- 17.78 6.22 3.11 D,-45.78 3.11 25 k 25 k A, = 18 D, 32 (d) Support Reactions and Member Forces for Indeterminate Truss FIG. 136 9.

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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Concept explainers

Matrix Algebra for Structural analysis

Structural analysis is a process in which the effects of different loads and internal forces, acting on structures and their elements are determined. This method of analysis is effective in detecting the failure loads of the structural elements and the design can be altered before commencing the construction process, which ensures proper strength and safety of the structures.

Question

Determine the reactions and the force in each member of the truss shown in Fig. 13.6(a) using the method of consistent deformations.

(6 in.)
28 k
(6 in 3
(6 in
15 ft
(4 in)
A,
O.D.
(6 in.)
(6 in)
(6 in.?)
A,1
25 k
25 k
3 panels at 20 ft= 60 ft
E= 29,000 ksi
(a) Indeterminate Truss
24
28 k
18
53.33
167
25
28
52
B
42.67
42.67
25 k
25 k
18
32
(b) Primary Truss Subjected to Extemal Loads-F, Forces
F
DIk
X D,
(e) Primary Truss Subjected to Unit Value of Redundant D,- "n Forces
24
28 k
53.33
18
11.67
25
A
A,- 17.78
6.22
3.11
D,-45.78
3.11
25 k
25 k
A, = 18
D, 32
(d) Support Reactions and Member Forces for Indeterminate Truss
FIG. 136
9.

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