OpenSees is a software framework for developing applications to simulate the performance of structural and geotechnical systems subjected to earthquakes. A number of OpenSees applications are released on this website.

OpenSees has advanced capabilities for modeling and analyzing the nonlinear response of systems using a wide range of material models, elements, and solution algorithms. The software is designed for parallel computing to allow scalable simulations on high-end computers or for parameter studies.

An OpenSees executable for Apple Machines with Intel processor(s) running OS10.4 or greater is available for download. You can download it using the following:

2023年3月20日 · OpenSees, the Open System for Earthquake Engineering Simulation, is an object-oriented, open source software framework. It allows users to create both serial and parallel finite element computer applications for simulating the response of structural and geotechnical systems subjected to earthquakes and other hazards.

2019年11月8日 · Discovering OpenSees is a resource for OpenSees users, containing recordings (videos), PPT presentations and accompanying examples from web-based learning series. The topics covered in these learning series are targeted for users of all levels, from the first time users up to advanced users.

2010年1月14日 · NEES infrastructure is supporting OpenSees to provide simulation capability and integration with NEESit services for NEES research. What is OpenSees? A software framework for simulation applications in earthquake engineering using finite element methods.

2022年3月6日 · The OpenSees Advanced 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.

2011年1月11日 · The objective of Example 1a and Example 1b is to give an overview of input-file format in OpenSees using simple scripts. These scripts do not take advantage of the Tcl scripting capabilities shown in the later examples.

2024年4月29日 · To download and install OpenSees the user is required to download both the OpenSees and Tcl/Tk packages. The OpenSees and Tcl/Tk packages can both be downloaded from the OpenSees binaries webpage opensees.berkeley.edu/binaries.html. The binaries download page will be similar to that shown below.

2011年3月2日 · In this document we focus primarily on those commands which have been added to Tcl by the OpenSees interpreters. All existing commands that exist in the Tcl language are available to these interpreters.