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4. A circular steel column with a fixed-pinned connection has a length of 4000 mm and a diameter of 200 mm. Calculate the critical

4. A circular steel column with a fixed-pinned connection has a length of 4000 mm and a diameter of 200 mm. Calculate the critical load in two cases, with a) theoretical, and b) design K values, if the proportional limit is 350 MPa, and E is 200 103 MPa. Compare the answers and discuss the result in 1 line. (Hint: you should be able to calculate the "r" value). I (7 marks)

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