(3 in.?) G 20 E 20 k 20 k Ik 25 1.25 (3 in 2) 12 ft 15 0.75 (3 in 2) 40 k D+ 40 k D (3 in 2) 75 1.25 12 ft 60 15 1.5 0.75 A (4 in.) B 60 60 16 ft 60 60 1.5 1.5 E= 29,000 ksi (a) (b) Real System -F Forces (c) Virtual System - F, Forces AG. 7.6 (4 in.2) (4 in.) (4 in.2)

(3 in.?) G 20 E 20 k 20 k Ik 25 1.25 (3 in 2) 12 ft 15 0.75 (3 in 2) 40 k D+ 40 k D (3 in 2) 75 1.25 12 ft 60 15 1.5 0.75 A (4 in.) B 60 60 16 ft 60 60 1.5 1.5 E= 29,000 ksi (a) (b) Real System -F Forces (c) Virtual System - F, Forces AG. 7.6 (4 in.2) (4 in.) (4 in.2)

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

Beams

In structural engineering, a beam is a component made of a variety of materials (including steel alloys, and wood) that can resist loads applied laterally to the beam axis. Members, elements, rafters, shafts, and purlins are all terms used to describe beams.

Question

Determine the horizontal deflection at joint G of the truss shown in Fig. 7.6(a) by the virtual work method

(3 in.?)
G
20
E
20 k
20 k
Ik
25
1.25
(3 in 2)
12 ft
15
0.75
(3 in 2)
40 k
D+
40 k
D
(3 in 2)
75
1.25
12 ft
60
15
1.5
0.75
A
(4 in.)
B
60
60
16 ft
60
60
1.5
1.5
E= 29,000 ksi
(a)
(b) Real System -F Forces
(c) Virtual System - F, Forces
AG. 7.6
(4 in.2)
(4 in.)
(4 in.2)

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