Question: A steel beam used in a bridge is constructed in the summer at a temperature of 35 C. The temperature decreases to -15C in

A steel beam used in a bridge is constructed in the summer at a temperature of 35 C. The temperature decreases to -15C in the winter. As a Civil Engineer, you have been asked to design the expansion joint to accommodate the strains generated by thermal variation in the steel beam. (i) Determine the change in the length of the steel beam (in mm) to design the expansion joint. (ii) If the beam is not allowed to contract, what is the value and type of the stress (compressive or tensile) generated in the beam due to the temperature variation?

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To determine the change in length of the steel beam and the type of stress generated due to the temperature variation we can use the coefficient of th... View full answer

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