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laying for the railroad, a small gap d is left between the ends of the rails for thermal p is such that if the temperature increases from -20°F to 90°F the rails will just touch. If th rature is increased to 110°F, what will be the axial force in the rail with a length L-5o ft, m ity E=29x10° psi, coefficient of thermal expansion a=6.6x10*/°F, and a cross-sectional are

laying for the railroad, a small gap d is left between the ends of the rails for thermal p is such that if the temperature increases from -20°F to 90°F the rails will just touch. If th rature is increased to 110°F, what will be the axial force in the rail with a length L-5o ft, m ity E=29x10° psi, coefficient of thermal expansion a=6.6x10*/°F, and a cross-sectional are

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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When laying tracks for the railroad, a small gap & is left between the ends of the rails for thermal expansion. The gap is such that if the temperature increases from -20°F to 90°F the rails will just touch. If the temperature is increased to 110°F, what will be the axial force in the rail with a length L=50 ft, modulus of elasticity E=29x10ʻ psi, coefficient of thermal expansion a=6.6x106/°F, and a cross-sectional area of 5.2 in?. -8 -L ft
Transcribed Image Text:When laying tracks for the railroad, a small gap & is left between the ends of the rails for thermal expansion. The gap is such that if the temperature increases from -20°F to 90°F the rails will just touch. If the temperature is increased to 110°F, what will be the axial force in the rail with a length L=50 ft, modulus of elasticity E=29x10ʻ psi, coefficient of thermal expansion a=6.6x106/°F, and a cross-sectional area of 5.2 in?. -8 -L ft
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