Earthquake Simulations of Large Scale Structures Using OpenSees Software on Grid and High Performance Computing in India

Abstract eng:
The Open System for Earthquake Engineering Simulation (OpenSees) is one of the many projects under development, as part of the Pacific Earthquake Engineering Research Center (PEER). 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. Tthe rapid advances in information technology can be used in developing the next generation of earthquake engineering simulation applications and also in educating the next generation of earthquake engineers. These advances include high-end computers for solving large-scale problems; databases for searching for new information from experimental data, simulation data, or observed data such as ground motion and field data; and visualization technology for providing engineers, design professionals, understanding about the performance of their systems. The capabilities of OpenSees include Modeling, Analysis and Structural Reliability. In this investigation, OpenSees software has been implemented on different HPC system in India and its performance has been evaluated using simulation studies. The OpenSees model has a Bridge and the effects of permanent displacements on the performance of these structures with impact of long period ground motions in an earthquake. The Simulation study is carried out using our Supercomputing facility - Param Padma system. The earthquake engineering analysis and simulations demand high computational requirements. A study on the time performance has been carried out and the effectiveness of parallel Opensees, to handle large size simulations is demonstrated taking advantage of the latest developments in databases, reliability methods, scientific visualization, and high-end computing

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