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OpenSees
About: OpenSees is a research topic. Over the lifetime, 1078 publications have been published within this topic receiving 9394 citations.
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TL;DR: The OpenSees software framework seeks to aid in this challenging task by letting earthquake engineers develop finite-element and finite- element-reliability applications for use in sequential, high-performance, and distributed processing environments.
Abstract: Structural engineers face many challenges in attempting to analyze and design structures that can withstand the devastating effects of earthquakes. The OpenSees software framework seeks to aid in this challenging task by letting earthquake engineers develop finite-element and finite-element-reliability applications for use in sequential, high-performance, and distributed processing environments.
653 citations
TL;DR: In this article, a new shear wall element model and associated material constitutive models based on the open source finite element (FE) code OpenSees are developed to perform nonlinear seismic analyses of high-rise RC frame-core tube structures.
215 citations
TL;DR: In this article, a bridge-foundation ground model is developed based on the structural configuration and local soil conditions of the Humboldt Bay Middle Channel Bridge, and the simulation results show that permanent ground deformation may induce settlement and longitudinal/transversal displacements of the abutments and deep foundations.
Abstract: Soil-structure interaction may play a major role in the seismic response of a bridge structure. Specifically, soil layers of low stiffness and strength may result in permanent displacement of the abutments and foundations, thus imposing important kinematic conditions to the bridge structure. A study to illustrate such phenomena is undertaken based on three-dimensional nonlinear dynamic finite-element (FE) modeling and analysis (for a specific bridge configuration under a given seismic excitation). A bridge-foundation-ground model is developed based on the structural configuration and local soil conditions of the Humboldt Bay Middle Channel Bridge. The FE model and nonlinear solution strategy are built in the open-source software platform OpenSees of the Pacific Earthquake Engineering Research Center. Based on the simulation results, the overall system seismic response behavior is examined, as well as local deformations/stresses at selected critical locations. It is shown that permanent ground deformation may induce settlement and longitudinal/transversal displacements of the abutments and deep foundations. The relatively massive approach ramps may also contribute to this simulated damage condition, which imposes large stresses on the bridge foundations, supporting piers, and superstructure.
173 citations
TL;DR: An overview of three software for structural reliability analysis developed at the University of California, Berkeley are provided, which include CalREL, FERUM, and OpenSees.
147 citations
TL;DR: The OpenSees interpreter interface was refactored to provide multi-interpreter capabilities and is accomplished through an abstract interface for interpreter calls with concrete implementations for different scripting languages.
132 citations