Resilience Toolbox

OpenSees  

The Open System for Earthquake Engineering Simulation

A centerpiece of PEER’s program is new research on simulation models and computational methods to assess the performance of structural and geotechnical systems. Breaking the barriers of traditional methods and software development protocols, PEER has embarked on a completely new approach in the earthquake engineering community by developing an open-source, object-oriented software framework. OpenSees is a collection of modules to facilitate the implementation of models and simulation procedures for structural and geotechnical earthquake engineering. By shared development using well-designed software interfaces, the open-source approach has affected collaboration among a substantial community of developers and users within and outside of PEER. Unique among software for earthquake engineering, OpenSees allows integration of models of structures and soils to investigate challenging problems in soil-structure-foundation interaction. In addition to improved models for reinforced concrete structures, shallow and deep foundations, and liquefiable soils, OpenSees is designed to take advantage of the latest developments in databases, reliability methods, scientific visualization, and high-end computing.

Developed by
Pacific Earthquake Engineering Research Center