Comparison Between Real Time Nonlinear Seismic Hybrid and Shake Table Testing Techniques

Abstract eng:
A direct comparison is made between shake table and real time hybrid simulation testing techniques for a two-storey steel building structure model. Only the first-storey structural components were included in the hybrid test program and a Rosenbrock-W explicit integration scheme was adopted for the numerical solution. The tests were performed under seismic ground motions exhibiting various amplitude levels and frequency contents to develop first and second mode dominated responses as well as elastic and inelastic responses. Excellent correlation was obtained between the two testing techniques, indicating that real time hybrid testing method can be used to successfully reproduce both the linear and nonlinear seismic responses of ductile structural steel seismic force resisting systems.

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