14. Column Interaction Diagram - spColumn Software

spColumn is a StructurePoint software program that performs the analysis and design of reinforced concrete sections subjected to axial force combined with uniaxial or biaxial bending. Using the provisions of the Strength Design Method and Unified Design Provisions, slenderness considerations are used for moment magnification due to second order effect (P-Delta) for sway and non-sway frames.

For this wall section, investigation mode was used with factored loads and no slenderness considerations using ACI 318-19.

14.1. Design Strength Interaction Diagram

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Figure 10 - spColumn Interface

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Figure 11 - spColumn Model Editor

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Figure 12 - Defining Reduction Factors (spColumn)

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Figure 13 - Defining Loads / Modes (spColumn)

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Figure 14 - Wall Design Strength Interaction Diagram about the Y-Axis (spColumn)

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14.2. Nominal Strength Interaction Diagram with 1.25fy and ϕ = 1.0 for Mpr Calculations

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Figure 15 - Defining Reduction Factors (spColumn)

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Figure 16 - Wall Nominal Strength Interaction Diagram about the Y-Axis (fy' = 1.25 × fy and ϕ = 1.0) (spColumn)