A 300 mm x 300 mm concrete column which is pin connected at both ends has an unsupported length of 4.6 meters. The column is carry a total factored axial load Pu = 300 kN and a lateral concentrated load of 90 kN acting at the mid-height of the column. Assume fc’ = 21 MPa and Bdns = 0.15. Compute the total moment including the secondary moment due to lateral deflection. a. 75.852 kN.m.   c. 124.614 kN.m. b. 635.785 kN.m. d. 90.872 kN.m

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Members with compression and bending

Compression members are structural elements that carry compressive axial force. They are the vertical members of a building that support beams and their design, which is governed by buckling and strength. Columns are known as struct or compression members, which are subjected to compressive forces. These members provide stiffness to the building and avoid any imperfection regarding the transfer of axial load. For instance, webs in a truss, braces in a framed structure, tiers, and so on.