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V.8.2.2.4 (Calculation of I_act)

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TheEverest

TheEverest

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In Section V.8.2.2.4, how do we calculate the actual moment of inertia of the intermediate stiffener region I_act? Is there any formula?
 
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The cross section can vary, so there is not one specific formula. This is the moment of inertia as figured in Strength of Materials textbooks, using the parallel axis theorem as needed.
 
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