Title: Implementation of real-time hybrid shake table testing using the UCSD large high-performance outdoor shake table
Authors: Manuel A. Vega; Andreas H. Schellenberg; Humberto Caudana; Gilberto Mosqueda
Addresses: Department of Structural Engineering, University of California, Structural and Materials Engineering Building, Matthews Lane, San Diego, CA 92161, USA ' Maffei Structural Engineering, 98 Battery St, San Francisco, CA 94111, USA ' Arup, 900 Wilshire Boulevard 19th Floor, Los Angeles, CA 90017, USA ' Department of Structural Engineering, University of California, Structural and Materials Engineering Building, Matthews Lane, San Diego, CA 92161, USA
Abstract: Large shake tables can provide extended capabilities to conduct large- and full-scale tests examining the seismic behaviour of structural systems that cannot be readily obtained from reduced scale or quasi-static testing conditions. Assessing the behaviour of large or complex structural systems introduces challenges such as high cost of full-scale specimens or capacity limitations of currently available shake tables. Some of these limitations may be overcome by employing the real-time hybrid shake table test method that requires only key subassemblies to be evaluated experimentally on the shake table while the remainder of the structure is modelled numerically. As a demonstration of the applicability of this testing method using a large shake table, a series of hybrid shake table tests were conducted on the University of California, UC San Diego large high-performance outdoor shake table (LHPOST) with capabilities to test full scale structural models. A physical specimen was coupled with a numerical model using hybrid simulation techniques and shown to reproduce reliable results with adequate mitigation of experimental errors.
Keywords: hybrid shake table; midlevel isolation; substructuring technique; friction pendulum.
International Journal of Lifecycle Performance Engineering, 2020 Vol.4 No.1/2/3, pp.80 - 102
Received: 22 Mar 2019
Accepted: 13 Oct 2019
Published online: 10 Aug 2020 *