Use VIRTUAL WORK METHOD to answer the questions below considering the truss shown in the figure. Assume A= 1200 mm2 , E = 200 GPa , and α = 12x10-6/°C. - Vertical displacement at Joint A in mm due to -100°C change in temperature in member AE and ED. Do not add deflection due to external loads or fabrication error. Choices: 14.40, 1.41, -16.90, -16.29, 2.74, 10.25, 8.24, -13.80 - Vertical displacement at Joint A in mm due to +2mm fabrication error on members AE and ED. Do not add deflection due to external loads or temperature change. Choices: -8.944, -0.694, -1.544, 15.841, -3.684, 2.546, 8.649, -17.645
Use VIRTUAL WORK METHOD to answer the questions below considering the truss shown in the figure. Assume A= 1200 mm2 , E = 200 GPa , and α = 12x10-6/°C. - Vertical displacement at Joint A in mm due to -100°C change in temperature in member AE and ED. Do not add deflection due to external loads or fabrication error. Choices: 14.40, 1.41, -16.90, -16.29, 2.74, 10.25, 8.24, -13.80 - Vertical displacement at Joint A in mm due to +2mm fabrication error on members AE and ED. Do not add deflection due to external loads or temperature change. Choices: -8.944, -0.694, -1.544, 15.841, -3.684, 2.546, 8.649, -17.645
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Use VIRTUAL WORK METHOD to answer the questions below considering the truss shown in the figure. Assume A= 1200 mm2 , E = 200 GPa , and α = 12x10-6/°C.
- Vertical displacement at Joint A in mm due to -100°C change in temperature in member AE and ED. Do not add deflection due to external loads or fabrication error.
Choices: 14.40, 1.41, -16.90, -16.29, 2.74, 10.25, 8.24, -13.80
- Vertical displacement at Joint A in mm due to +2mm fabrication error on members AE and ED. Do not add deflection due to external loads or temperature change.
Choices: -8.944, -0.694, -1.544, 15.841, -3.684, 2.546, 8.649, -17.645
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