1. Use the alignment chart to determine the effective length

Question
1. Use the alignment chart to determine the effective length factors for Columns AB and BC of the unbraced frame. Assume that the beams are 12-in. x 18-in. and the columns are 12-in. x 12-in. Use the ACI code for calculating the moment of inertia (Columns will have 70% and beams will have 35% of the moment of inertia for gross cross sections). Use = 10 for the hinged base. Use the alignment chart provided. B 30' 30' 30' 12' 12'
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