OpenSees User

The OpenSees User pages are intended for users of the OpenSees applications:

1. OpenSees.exe
2. OpenSeesSP.exe
3. OpenSeesMP.exe

These applications are all interpreters which interpret input written in an extended form of the Tcl programming language. The extensions to the Tcl language are for finite element analysis using the classes provided for in the OpenSees Framework.

User Documentation

• Getting Started Manual

The OpenSees Getting Started manual provides a step by step instruction on how to obtain, install, and use OpenSees. For users who have never used OpenSees or a command line interpreter, it is a useful document to read before you go any further.

• Command Manual

The OpenSees Command Manual is now in wiki form. Users and code developers are encouraged to add and correct the manual as the see fit.

The Command Manual details those new commands that have been added to Tcl by the OpenSees interpreters.

In the command manual we only detail those commands added to Tcl for finite element programming.

• Examples Manual

The OpenSees Examples Manual contains examples on how to create models and perform simulations on those models.

It has examples ranging from simple single element linear models to complex 3D nonlinear fiber models.

These examples are intended only to show the usage of the commands available in OpenSees. They are not necessarily examples showing the best of practice.

• Sensitivity Analysis

The OpenSees Sensitivity Analysis contains commands and application examples on how to perform response sensitivity analysis.

These examples are intended only to show the usage of the commands available in OpenSees. They are not necessarily examples showing the best of practice.

Practical Examples

• Getting Started Examples

• Time History Analysis of a 2D Elastic Cantilever Column
• Eigen analysis of a two-story shear frame
• Eigen analysis of a two-storey one-bay frame

• Other Examples

Geotechnical Examples

• Simulating a Centrifuge Test
• Laterally-Loaded Pile Foundation (Static Analysis)
• One-dimensional Consolidation
• Total Stress Site Response Analysis of a Layered Soil Column
• Effective Stress Site Response Analysis of a Layered Soil Column
• Dynamic Effective Stress Analysis of a Slope
• GiD ProblemTypes for 2D Slope Analysis Input File Generation
• Excavation Supported by Cantilevered Sheet Pile Wall

Structural Examples

• Infill Wall Model and Element Removal
• Simply supported beam modeled with two dimensional solid elements
• Pushover Analysis of 2-Story Moment Frame (without panel zones)
• Dynamic Analysis of 2-Story Moment Frame (without panel zones)
• Pushover and Dynamic Analyses of 2-Story Moment Frame with Panel Zones and RBS
• Dynamic Analyses of 1-Story Moment Frame with Viscous Dampers
• Rigid Diaphragm Consequences
• Parameter Study using Parallel Processing

Material Calibration Examples

• Calibration of Maxwell Material

Tools and Applications

1. : a Real-Time Interface, graphical and scriptical, for Numerical Simulation in OpenSees
2. | OpenSees Navigator