Exercise 17.11 The Humber Bridge in England has the world’s longest single span,

Question

Exercise 17.11

The Humber Bridge in England has the world’s longest single span, 1410 m .

Part A

Calculate the change in length of the steel deck of the span when the temperature increases from -4.0 C to 16.0 C.

Express your answer using two significant figures.

Exercise 17.11

The Humber Bridge in England has the world’s longest single span, 1410 m .

Part A

Calculate the change in length of the steel deck of the span when the temperature increases from -4.0 C to 16.0 C.

Express your answer using two significant figures.

Explanation / Answer

L = 1410 m
t = (16.0 - (-4.0) ) = 20 oC
Linear coefficient of thermal expansion of steel, = 12x10^-6/C
Chage in Length is given by,
L = * L * t
L = 12 *10^-6 * 1410 * 20 m
L = 0.338 m
Change in length of the steel deck, L = 0.338 m

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