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Two parallel walls, 8 m apart, are stayed together by a steel rod of 20 mm diameter passing through metal plates and nuts at each other. The nuts are screwed upto the plate while the bar is at a temperature of 400°C. If the total yielding at the two ends is 5 mm, the pull exerted by the bar after it has cooled to 300 °C, will be kN. (Take a = 12 x 10-6 °C-1, E = 2 × 105 N/mm²)

Two parallel walls, 8 m apart, are stayed together by a steel rod of 20 mm diameter passing through metal plates and nuts at each other. The nuts are screwed upto the plate while the bar is at a temperature of 400°C. If the total yielding at the two ends is 5 mm, the pull exerted by the bar after it has cooled to 300 °C, will be kN. (Take a = 12 x 10-6 °C-1, E = 2 × 105 N/mm²)

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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Two parallel walls, 8 m apart, are stayed together by a steel rod of 20 mm diameter passing through metal plates and nuts at each other. The nuts are screwed upto the plate while the bar is at a temperature of 400°C. If the total yielding at the two ends is 5 mm, the pull exerted by the bar after it has cooled to 300 °C, will be. kN. (Take a = 12 x 10-6 °c-1, E = 2 × 105 N/mm2)
Transcribed Image Text:Two parallel walls, 8 m apart, are stayed together by a steel rod of 20 mm diameter passing through metal plates and nuts at each other. The nuts are screwed upto the plate while the bar is at a temperature of 400°C. If the total yielding at the two ends is 5 mm, the pull exerted by the bar after it has cooled to 300 °C, will be. kN. (Take a = 12 x 10-6 °c-1, E = 2 × 105 N/mm2)
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