of A573 Grade 60 (F, = 415 MPa) steel is used as a compression member. It is 7 m long, fixed at the top and bottom, and has additional support in the weak direction 3 m from the top. Properties of the section are: A = 14,500 mm? , Lx = 258.6 x 10° mm', I, = 84.375 x 10° mm* Calculate the critical slenderness ratio of the member. A. 26.208 B. 45.882 C. 36.706 D. 27 529

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A W12x79 of A573 Grade 60 (F, = 415 MPa) steel is used as a compression member. It is 7 m long, fixed at the top and bottom, and has additional support in the weak direction 3 m from the top. Properties of the section are: A = 14,500 mm? , Lx = 258.6 x 10° mm', I, = 84.375 x 10° mm* Calculate the critical slenderness ratio of the member. A. 26.208 B. 45.882 C. 36.706 D. 27 529 2 3. Calculate the nominal axial load capacity of the column A. 3 104 kN B. 4 851 kN C. 4 213 kN D.5 344 kN Calculate the service axial dead load if the service axial live load is twice as that of the dead load. Use LRFD A. 1 354 kN B. 992 kN C. 1 093 kN D. 634 kN
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