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Complex Loading - Bending and Compression

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A steel chimney is 28m high, 1.4m external diameter, and 20mm thick. It is rigidly fixed at the base and is acted upon by a horizontal wind pressure of intensity 1.1KN/m2 on the projected area. The steel weighs 74KN/m length. Calculate the maximum stress in the chimney at the base.

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I am sending the solution in the attachment. The resulting stress is small when compared to the limits of steel, ...

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Solution attaches a visual answer in a .jpg as well as some explanation as to how to find the maximum stress a given chimney can handle at its base.