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P8.14. (a) Find the horizontal deflection at joint B produced by the 40-kip load in Figure P8.14. The area of all bars is shown on the sketch of the truss; E = 30,000 kips/in.². (b) To restore joint B to its initial position in the horizontal di- rection, how much must bar AB be shortened? (c) If the temperature of bars AB and BC increases 80°F, determine the vertical displacement of joint C. a₁ = 6.5 × 10−6 (in./ in.)/°F. The rocker at support A is equivalent to a roller. k 5 in.2 2 in.² 15' B 4 in.2 * D P8.14 5 in.² 2 in.² 15' P = 40 kips 20'

P8.14. (a) Find the horizontal deflection at joint B produced by the 40-kip load in Figure P8.14. The area of all bars is shown on the sketch of the truss; E = 30,000 kips/in.². (b) To restore joint B to its initial position in the horizontal di- rection, how much must bar AB be shortened? (c) If the temperature of bars AB and BC increases 80°F, determine the vertical displacement of joint C. a₁ = 6.5 × 10−6 (in./ in.)/°F. The rocker at support A is equivalent to a roller. k 5 in.2 2 in.² 15' B 4 in.2 * D P8.14 5 in.² 2 in.² 15' P = 40 kips 20'

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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P8.14. (a) Find the horizontal deflection at joint B produced by the 40-kip load in Figure P8.14. The area of all bars is shown on the sketch of the truss; E = 30,000 kips/in.². (b) To restore joint B to its initial position in the horizontal di- rection, how much must bar AB be shortened? (c) If the temperature of bars AB and BC increases 80°F, determine the vertical displacement of joint C. a₁ = 6.5 × 10−6 (in./ in.)/°F. The rocker at support A is equivalent to a roller. k 5 in.2 2 in.² 15' B 4 in.2 * D P8.14 5 in.² 2 in.² 15' P = 40 kips 20'
Transcribed Image Text:P8.14. (a) Find the horizontal deflection at joint B produced by the 40-kip load in Figure P8.14. The area of all bars is shown on the sketch of the truss; E = 30,000 kips/in.². (b) To restore joint B to its initial position in the horizontal di- rection, how much must bar AB be shortened? (c) If the temperature of bars AB and BC increases 80°F, determine the vertical displacement of joint C. a₁ = 6.5 × 10−6 (in./ in.)/°F. The rocker at support A is equivalent to a roller. k 5 in.2 2 in.² 15' B 4 in.2 * D P8.14 5 in.² 2 in.² 15' P = 40 kips 20'
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