Determining Pushover Curves in RFEM

Current News

01/29/2019

Pushover Analysis is a nonlinear static method related to the seismic analysis of structures. A pre-determined lateral load pattern is applied to the structure and steadily increased to identify yielding and plastic hinge formations along with the load at which failure of the various structural components will occur.

The Capacity Curve or Pushover Curve represents the nonlinear behavior of the structure and is a load-deformation curve of the base shear force versus the horizontal roof displacement of a building. Pushover analysis transforms a dynamic problem into a static problem.

In RFEM, define nonlinear plastic hinges according to FEMA 356 along steel members. Together with the load path definition, nonlinear calculation with incrementally increasing loading, and the calculation diagrams, you can easily generate a pushover curve.

Take a look at the latest pushover tutorial which includes a multi-story steel frame constructed with AISC W-sections and steel A992 material. This tutorial will guide RFEM users with a step-by-step process to determine the structure’s Pushover Curve.

RF-/DYNAM Pro Tutorial (Pushover Analysis)

Keywords

pushover, pushover analysis, FEMA, FEMA 356, dynamics, dynamic analysis, seismic, plastic hinges, pushover curve, capacity curve, load pattern, N2-method, capacity spectrum method, acceptance criteria