Q4) When the temperature is 67°F, the lengths of the bars are as shown in the figure below. The coefficients of thermal expansion for bars (1) and (2) are a1 = 40x10-$/°F and a2 = 70x10-6/°F, respectively. IF the gap between the two bars is a = 0.115 in. and the supports at A and D are rigid, find the lowest temperature at which the gap is closed. 45 in. 27 in. (1) (2) A B

Q4) When the temperature is 67°F, the lengths of the bars are as shown in the figure below. The coefficients of thermal expansion for bars (1) and (2) are a1 = 40x10-$/°F and a2 = 70x10-6/°F, respectively. IF the gap between the two bars is a = 0.115 in. and the supports at A and D are rigid, find the lowest temperature at which the gap is closed. 45 in. 27 in. (1) (2) A B

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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Question

Q4) When the temperature is 67°F, the lengths of the bars are as shown in
the figure below. The coefficients of thermal expansion for bars (1) and (2)
are a1 = 40x10-$/°F and a2 = 70x10-6/°F, respectively. IF the gap between the
two bars is a = 0.115 in. and the supports at A and D are rigid, find the lowest
temperature at which the gap is closed.
%3D
45 in.
27 in.
(1)
(2)
A
B

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