For Probs. 18.1 to 18.6, using the virtual-work method, determine the deflection of each of the joints marked on the trusses shown in the accom- panying illustrations. The circled figures are areas in sq. in and E - 29 x 10 psi unless otherwise indicated. Problem 18.1 U, vertical, U, horizontal 30k 30% U₂ 다. (2) 20k -20 ft- www -20 ft- 15 ft

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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For Probs. 18.1 to 18.6, using the virtual-work method, determine the
deflection of each of the joints marked on the trusses shown in the accom-
panying illustrations. The circled figures are areas in sq. in and E - 29 × 10
psi unless otherwise indicated.
Problem 18.1 U, vertical, U, horizontal
30k
30
+U₂
(24)
4
40
Problem 18.2 L, vertical, L, horizontal (Ans. L₂ - 1.53 in 1, L, -0.55 in →)
40k
2
-2 at 40 ft - 80 ft
15 ft
Transcribed Image Text:2 3 For Probs. 18.1 to 18.6, using the virtual-work method, determine the deflection of each of the joints marked on the trusses shown in the accom- panying illustrations. The circled figures are areas in sq. in and E - 29 × 10 psi unless otherwise indicated. Problem 18.1 U, vertical, U, horizontal 30k 30 +U₂ (24) 4 40 Problem 18.2 L, vertical, L, horizontal (Ans. L₂ - 1.53 in 1, L, -0.55 in →) 40k 2 -2 at 40 ft - 80 ft 15 ft
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