Two concrete spans of a 160 m long bridge are placed end to end so that no room is allowed for expansion. T 160 m- T+20°C Y If the temperature increases by 20°C, what is the height to which the spans rise when they buckle? Assume the thermal coefficient of expansion is 1.2 x 10-5 (°C)-¹. Answer in units of m.

Two concrete spans of a 160 m long bridge are placed end to end so that no room is allowed for expansion. T 160 m- T+20°C Y If the temperature increases by 20°C, what is the height to which the spans rise when they buckle? Assume the thermal coefficient of expansion is 1.2 x 10-5 (°C)-¹. Answer in units of m.