An overview of the procedure for pushover analysis is given as follows:

Create the computational model

• Create the computational model, without pushover data, using conventional modeling techniques.

• Define properties for pushover hinges using Define > Section Properties > Hinge Properties. Hinges may be defined manually or by using one of several default specifications which are available.

• Assign the pushover hinges to selected frame objects using Assign > Frame > Hinges.

• Select Define > Load Patterns to define load patterns which will contain the loads applied during pushover analysis.

Define a nonlinear static load case

• Select Define > Load Cases > Add New Load Case to define a nonlinear static load case which will apply the previously-defined load pattern. This load case may be force-controlled (pushed to a specified force level) or displacement-controlled (pushed to a specified displacement).

• Select Other Parameters > Results Saved to Multiple States such that various parameters may be plotted for each increment of applied loading.

Run the analysis

• Select Analyze > Run Analysis to run the static-pushover analysis.

Review results

• To plot base shear vs. monitored displacement, select Display > Show Static Pushover Curve. Additional variables are also available for plotting.

• To plot hinge deformation vs. applied loading, select Display > Show Hinge Results. Moment as a function of plastic rotation is one such option.

• To review displacement and the step-by-step sequence of hinge formation, select Display > Show Deformed Shape.

• To review member forces on a step-by-step basis, select Display > Show Forces/Stresses > Frames/Cables.

• Select Display > Show Plot Functions to plot response at each step of the pushover analysis, including joint displacement, frame member forces, etc.

See Also

• Unknown macro: {new-tab-link}

  CSI

  Analysis Reference Manual (Nonlinear Static Analysis > Static Pushover Analysis, page 394)

• Habibullah, A., Pyle, S. (1998). Practical Three Dimensional Nonlinear Static Pushover Analysis , Computers and Structures, Inc., Berkeley, CA

• CSI
  Unknown macro: {new-tab-link}

  Watch & Learn

  video series, SAP2000 Tutorial 21, Static Pushover Analysis