1. Find the force in members AB, BC, BD and CD. 2. Find the absolute vertical displacement of joint C (in inches). Use principal of virtual work. Given: EA= 2000 k for members AB, BC and BD. EA= 4000 k for member CD alpha = 5.0 x 10^-5 degrees Fahrenheit (for all trusses). 6. Does the vertical displacement of C move up or down?
1. Find the force in members AB, BC, BD and CD. 2. Find the absolute vertical displacement of joint C (in inches). Use principal of virtual work. Given: EA= 2000 k for members AB, BC and BD. EA= 4000 k for member CD alpha = 5.0 x 10^-5 degrees Fahrenheit (for all trusses). 6. Does the vertical displacement of C move up or down?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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1. Find the force in members AB, BC, BD and CD.
2. Find the absolute vertical displacement of joint C (in inches). Use principal of virtual work.
Given: EA= 2000 k for members AB, BC and BD.
EA= 4000 k for member CD
alpha = 5.0 x 10^-5 degrees Fahrenheit (for all trusses).
6. Does the vertical displacement of C move up or down?
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