Non-stationary respOnse of spaTially Extended Stru.. (NOTES)
Non-stationary respOnse of spaTially Extended Structures
Start date: Mar 1, 2009,
End date: Feb 28, 2013
"Failures of long span highway structures in Northridge earthquake (1994) and spatially extended transmission towers systems in Kobe earthquakes (1995) have clearly shown the significance of non-stationary effects of ground motions and its importance in earthquake geotechnical engineering. Similar detrimental vibration effects have been witnessed in vehicle induced ground transmission of vibrations from high speed railway tracks, both underground and at surface. There has been a rapid growth of infrastructure and transportation systems (like tunnels, pipelines etc.) in Europe over the last few decades, which are spatially extended structures. The non-stationary effects of vibrations are threatening to the safety of these systems making them vulnerable to vibrations transmitted through soil medium. The recent European design codes require these systems to be analysed for safety against spatially varying vibration effects, which will be mandatory in near future. The Structural Dynamics & Vibrations Group (SDVG) in Trinity College Dublin, Ireland has excellent research background on non-stationary vibration analysis with international reputation, and PLAXIS BV an SME in The Netherlands is a world leader in the field of finite element modelling in geotechnical engineering with emphasis on soil-structure interaction. The PLAXIS BV is a European technical IT company which has a range of user friendly technical software products for the infrastructure industry worldwide. This project provides a framework to bring the two partners (from academia and industry) together with complementary expertise, to transfer the knowledge for mutual benefit and development. It will contribute to the knowledge base development of a European SME with global market, innovating new products. It will also foster the FP7 targets of Sustainable Transport with safety and security under to man-made and naturally induced vibrations; applying the tools developed using Information Science & Technology."
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