Question

2. The following details are of a two-story building. 2.5" 13 5 Column A 4 No. 8 bars: bars on all end faces of the tied column (Graphs 6 - 9) - Bending axis Column A: Section A-A 2.5'+ 13* - |- 2.5 Column B 6 No. 7 bars: bars on two end faces of the tied column (Graphs 2 - 5) - Bending areas Column B: Section B-8 (a) Determine the maximum axial force, P., that can be carried by both Columns A and B. if they are loaded concentrically. (b) Determine the responding eccentricity, e, of Column A, if it is loaded to a balanced condition. (c) Determine the maximum bending, M., Column B can carry, if it is already carrying an axial force, P. = 150k. (d) Determine the maximum axial force, P., and bending, M., Column A can carry, if an eccentricity, e = 6-in, is present. (e) What is the recommended the clear height (in feet) of these columns be, if slenderness effect is to be ignored? The two-story building is considered to be unbraced. Take the effective length factor, , of the columns to be 1.35.

Answer 1

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