Simple Nonlinear-Analysis Example

Objectives and Characteristics

Model Types

Analysis Types

Example 2a. Elastic Cantilever Column with variables

• introduce variable: define & use

• elastic element

• static pushover analysis
• dynamic earthquake-input analysis

Example 2b. Nonlinear Cantilever Column: Uniaxial Inelastic Section

• first example of nonlinear model, set nonlinearity at section level

• nonlinearBeamColumn element
• uniaxial section

• static pushover analysis
• dynamic earthquake-input analysis

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

• set nonlinearity at material level
• material stress-strain response is assembled into fiber section
• reinforced-concrete fiber section

• nonlinearBeamColumn element
• uniaxial material
• fiber section (Reinforced-concrete fiber section)

• static pushover analysis
• dynamic earthquake-input analysis

In This Chapter

Example 2a. Elastic Cantilever Column with variables

Example 2b. Nonlinear Cantilever Column: Uniaxial Inelastic Section

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