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The two sections below describe how interaction diagrams may be plotted for reinforced-concrete columns using SAP2000.

Plotting interaction diagram from design results

  • Design a frame object with a reinforced-concrete cross section and longitudinal reinforcement.
  • Display design information using the Design > Concrete Frame Design > Display Design Info command.
  • Right-click on the desired member to open the Design Information menu.
  • Select Interaction to display the interaction surface and interaction diagram, as shown in Figure 1:


Figure 1 - Plotting interaction diagram from design results

Plotting interaction diagram in the Section Designer

  • Open the section in the Section Designer and select Display > Show Interaction Surface to display the interaction surface, as shown in Figure 2:


Figure 2 - Plotting interaction diagram in the Section Designer

See Also