/
Pushover analysis first steps

Pushover analysis first steps

This tutorial was initially written for SAP2000, though the general procedure also applies to CSiBridge.

On this page:

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

Metadata

  • Name: Pushover analysis first steps

  • Description:

  • Program:

  • Program Version:

  • Model ID:

Related content

Time-history analysis first steps
Time-history analysis first steps
Read with this
Hinge first steps (CSiBridge)
Hinge first steps (CSiBridge)
More like this
Hinge first steps (SAP2000)
Hinge first steps (SAP2000)
More like this
Pushover
More like this
Bridge seismic design per AASHTO LRFD 2007
Bridge seismic design per AASHTO LRFD 2007
More like this