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6 m B 4 m E Ap D 6 m 6 m

6 m B 4 m E Ap D 6 m 6 m

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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Consider the steel truss shown to answer Parts A, B, and C below, where P1 = 36 kN and P2 = 46 kN . The cross-sectional area of each member is A = 400 mm2 , E = 300 GPa, and ΔDh = 3.08 mm

ΔEv =  ____ mm

 

P. 6 m B 4 m E Ap D 6 m 6 m
Transcribed Image Text:P. 6 m B 4 m E Ap D 6 m 6 m
Part B - Vertical displacement Use the method of virtual work to determine the vertical displacement of joint E due to the applied loads. Let a positive answer represent an upward displacement and a negative answer represent a downward displacement. Express your answer in the appropriate units to three significant figures. v View Available Hint(s) Hint 1. How to approach the problem Hint 2. Virtual forces caused by the unit load Hint 3. Real forces N. The truss is subjected to the same external loads as in Part A. Therefore, the real forces in each truss member will not change. However, the virtual load causes nonzero forces in all the members, so you need to calculate the forces in all the members. HA Value mm
Transcribed Image Text:Part B - Vertical displacement Use the method of virtual work to determine the vertical displacement of joint E due to the applied loads. Let a positive answer represent an upward displacement and a negative answer represent a downward displacement. Express your answer in the appropriate units to three significant figures. v View Available Hint(s) Hint 1. How to approach the problem Hint 2. Virtual forces caused by the unit load Hint 3. Real forces N. The truss is subjected to the same external loads as in Part A. Therefore, the real forces in each truss member will not change. However, the virtual load causes nonzero forces in all the members, so you need to calculate the forces in all the members. HA Value mm
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