Problem 3/Question 6: You are inspecting the construction of a steel bridge. It is the cold- est day in January (and of the year) and you do not have in your notes the coefficient of linear expansion for steel but you remember its roughly something like 10-5 °C-1. You are about to place two steel rods with a gap between them to account for thermal expansion. The length of the rods is 15 m and you know that for reasons of safety that gap can never be more than 5 cm. What is the best thing to do among these options: a) Use a gap of 5 cm between the rods b) Use a gap of 4 cm between the rods c) Use a gap of 1 cm between the rods d) Do not put any gap between the rods Think first conceptually then we do it as a problem, where you use that for steel the coef- ficient of linear expansion is a = 11 x 10-6 °C-1
Problem 3/Question 6: You are inspecting the construction of a steel bridge. It is the cold- est day in January (and of the year) and you do not have in your notes the coefficient of linear expansion for steel but you remember its roughly something like 10-5 °C-1. You are about to place two steel rods with a gap between them to account for thermal expansion. The length of the rods is 15 m and you know that for reasons of safety that gap can never be more than 5 cm. What is the best thing to do among these options: a) Use a gap of 5 cm between the rods b) Use a gap of 4 cm between the rods c) Use a gap of 1 cm between the rods d) Do not put any gap between the rods Think first conceptually then we do it as a problem, where you use that for steel the coef- ficient of linear expansion is a = 11 x 10-6 °C-1
Chapter2: Loads On Structures
Section: Chapter Questions
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What is the best thing to do among these options? USE IMAGE AS REFERNCE
Transcribed Image Text:Problem 3/Question 6: You are inspecting the construction of a steel bridge. It is the cold-
est day in January (and of the year) and you do not have in your notes the coefficient of linear
expansion for steel but you remember its roughly something like 10-5 °C-1. You are about to
place two steel rods with a gap between them to account for thermal expansion. The length of
the rods is 15 m and you know that for reasons of safety that gap can never be more than 5 cm.
What is the best thing to do among these options:
a) Use a gap of 5 cm between the rods
b) Use a gap of 4 cm between the rods
c) Use a gap of 1 cm between the rods
d) Do not put any gap between the rods
Think first conceptually then we do it as a problem, where you use that for steel the coef-
ficient of linear expansion is a = 11 x 10-6 °C-1
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