An overview of hybrid simulation implementations in NEES projects

作者：Shao Xiaoyun^*; Griffith Chelsea

来源：Engineering Structures, 2013, 56: 1439-1451.

DOI：10.1016/j.engstruct.2013.07.008

• Hybrid simulation
• NEES projects
• Seismic experimentation
• Integration algorithm
• Real-time compensation

Hybrid simulation is an advanced structural seismic experimental method that combines experimental physical models with analytical numerical models; its versatility and capability of simulating seismic response of large-scale specimens make it particularly applicable to the general civil structural systems. Hybrid simulation has been applied to over twenty George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) projects. This paper provides an overview of hybrid simulation implementations used in these projects based on the shared project data available at the NEEShub project warehouse. A brief introduction of hybrid simulation methods is firstly presented. Then hybrid simulation implementations in NEES projects are discussed in detail, including experimental substructural materials and scaling, substructural partition, hybrid simulation framework, integration algorithms, real-time hydraulic compensations, and verifications and applications of hybrid simulation results. The paper concludes that hybrid simulation is an effective, reliable and economic experimental method in earthquake engineering but requires further development to provide more realistic structural responses and validated general hybrid simulation procedure for broader application. Published by Elsevier Ltd.

• 出版日期2013-11