|
|
|
|
This is the first example of a nonlinear model. The nonlinear beam-column element that replaces the elastic element of Example 2a requires the definition of the element cross section, or its behavior. In this example, the Uniaxial Section used to define the nonlinear moment-curvature behavior of the element section is "aggregated" to an elastic response for the axial behavior to define the required characteristics of the column element in the 2D model. In a 3D model, torsional behavior would also have to be aggregated to this section. |
|
a. Static Pushover
|
c. Dynamic EQ Ground Motion
|
|
|
In this example, both the axial behavior (typically elastic) and the flexural behavior (moment curvature) are defined indepenently and are then "aggregated" into a section. This is a characteristic of the uniaxial section: there is no coupling of behaviors.
The response curves for this example (obtained from the recorders' files DFree.out RBase.out) are as follows:
Ex2b.Canti2D.InelasticSection.Push.tcl:
Ex2b.Canti2D.InelasticSection.EQ.tcl:
|
|
|
