OpenSees Example 2c. Nonlinear Cantilever Column: Inelastic Uniaxial Materials in Fiber Section

Introduction

In this example, the Uniaxial Section of Example 2b is replaced by a fiber section. Inelastic uniaxial materials are introduced in this example, which are assigned to each fiber, or patch of fibers, in the section.

Input

Static Pushover Files Ex2c.Canti2D.InelasticFiberSection.Push.tcl Note: Recent versions of OpenSees will give an error. The lateral load pattern should be defined with three instead of six values.

Dynamic EQ Ground Motion Files Ex2c.Canti2D.InelasticFiberSection.EQ.tcl BM68elc.acc (ground-motion file)

Run

• To run Static Pushover analysis:

source Ex2c.Canti2D.InelasticFiberSection.Push.tcl

• To run EQ ground-motion analysis (BM68elc.acc needs to be downloaded into the same directory):

source Ex2c.Canti2D.InelasticFiberSection.EQ.tcl

Notes

• In this example the axial and flexural behavior are coupled, a characteristic of the fiber section.
• The nonlinear/inelastic behavior of a fiber section is defined by the stress-strain response of the uniaxial materials used to define it.

---

Return to OpenSees Examples Manual -- Structural Models & Analyses

Return to OpenSees User