Columns With Combined Bending and Axial Load

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Presentation transcript:

Columns With Combined Bending and Axial Load

Choosing Column Cross-section Can neglect slenderness of columns in braced frames when: with where: Ψ = 0.30 for rectangular cross section columns, 0.25 for circular cross sections M1 = the smaller of the two end moments, to be taken as POSITIVE for columns bend in single curvature and NEGATIVE for columns bent in double curvature. M2 = the larger of the two end moments, always taken as POSITIVE.

Interaction Diagrams h - 2[cover + tie diameter] + bar radius