Question

Suppose that the 1.3 km span of the Golden Gate Bridge had no expansion joints. Calculate how much longer the bride would be if the temperature of the bridge increases by 25°C.

Answer 1

Given:

Δt = change in temperature = 25°c

L = Lenght = 1.3 km= 1300 m

Suppose the bride is made out of steel.

coefficient of Linear expansion of steel = 11 x 10^-6 /°C

Apply:

ΔL = L x coeficcient x Δt = 1300 ( 11x10^-6) 25 = 0.3575 m