Question

Question 1: Two columns are braced about the strong and weak axis as shown in the figures. Both columns are A992 steel. Column 1 (20 points) a. (7 points) Use Section E3 of the specification (i.e., equations) to determine the factored compressive strength (P)considering the limit state of flexural buckling. i. (2 points) Does the strong axis or the 20 ft weak axis control? Justify your answer. ii. (2 points) Does elastic or inelastic buckling control? Justify your answer (5 points) Use Table 4-1 to determine the factored compressive strength (φΡΑ 40 ft b. 20 ft i. (2 points) Does the strong axis or the weak axis control? Justify your answer. (2 points) Are the values of φΡη determined using the specification and Table 4-1 essentially the same? Should they be the same? C. H T Column 1: W10 x 33

Answer 1

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