2 An unbraced frame is shown in Figure P4.7-12. Use LRFD and the alignment chart to check the adequacy of the following columns for $F_{y} = 50 ksi$ . Use the stiffness reduction factor if applicable. Use $K_{y} = 1.0$ . a. Column $A B, P_{u} = 750$ kips. b. Column $MN, P_{u} = 1000$ kips. c. Column $BC, P_{u} = 600$ kips. d. Column $L M, P_{u} = 1200$ kips. e. Column $FG, P_{u} = 240$ kips. f. Column $H I, P_{u} = 480$ kips. FIGURE P4.7-12

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2 An unbraced frame is shown in Figure P4.7-12. Use LRFD and the alignment chart to check the adequacy of the following columns for

F_{y} = 50 ksi

. Use the stiffness reduction factor if applicable. Use

K_{y} = 1.0

. a. Column

A B, P_{u} = 750

kips. b. Column

MN, P_{u} = 1000

kips. c. Column

BC, P_{u} = 600

kips. d. Column

L M, P_{u} = 1200

kips. e. Column

FG, P_{u} = 240

kips. f. Column

H I, P_{u} = 480

kips. FIGURE P4.7-12

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