Linear expansion and Brighton i360

 

This is supposed to be the most slender tower in the world in terms of height to width ratio. I take that means without additional support because Caldbeck mast is more slender but has ties to hold it. I saw a suggestion that the Sun on the south side makes that side expand more and so the tower leans slightly north. Coefficient of liner expansion for steel is about 12 x 10^-6 m per degree Celsius for a 1 metre length. The tower is 162 metres high. This means the south will expand by 2mm more than the north for a temperature difference of 1 degree Celsius. Metal conducts so there can be a massive difference so perhaps the difference will be 1 or 2 cm on a hot day.