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Consider the frame shown in the next figure under the given external lateral loads. The sign convention for a positive moment in the columns is

Consider the frame shown in the next figure under the given external lateral loads. The sign convention for a positive moment in the columns is illustrated.

a. Calculate the axial forces for the columns (only) using the cantilever method, assuming that interior columns are 50% bigger (bigger cross-sectional area) than
exterior columns.

b. What is the moment diagram for beam member FG?


 

 

100 kips A E 15 feet B F G H TI 12 feet 8 feet i D 10 feet

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