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Real‐time hybrid simulations vs shaking table tests: Case study of a fibre‐reinforced bearings isolated building under seismic loading
Author(s) -
Calabrese Andrea,
Strano Salvatore,
Terzo Mario
Publication year - 2015
Publication title -
structural control and health monitoring
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.587
H-Index - 62
eISSN - 1545-2263
pISSN - 1545-2255
DOI - 10.1002/stc.1687
Subject(s) - earthquake shaking table , base isolation , structural engineering , column (typography) , earthquake engineering , engineering , dynamic testing , table (database) , work (physics) , base (topology) , seismic loading , computer science , mechanical engineering , data mining , mathematical analysis , mathematics , connection (principal bundle) , frame (networking)
Summary In this paper, real‐time hybrid simulations (RTHSs) and shaking table tests (STTs) are described to assess the feasibility of using recycled rubber fibre‐reinforced bearings (FRBs) as base isolators of low‐cost buildings in developing countries. The RTHSs were run to predict the behaviour of a prototype‐scaled building under dynamic loading prior to carrying out STTs on the same structural model. Real‐time tests addressed a lack of knowledge regarding the seismic behaviour of FRBs as isolators for low‐rise buildings. They also underlined the feasibility of the shaking table experimental tests and addressed all the safety concerns. In this work, the outcomes of the two different testing procedures were compared. As result, the need to adopt STTs to validate base isolation technologies is questioned and, from the comparison, the advantages and limits of the two testing procedures are presented. Moreover, the acquired knowledge on the dynamic behaviour of recycled rubber bearings validates their use as isolators for seismic risk mitigation in earthquake‐prone regions of the world. Briefly, the objectives of this work can be listed as follows: (i) to provide validation of a newly constructed RTHS testing apparatus at the Department of Industrial Engineering of the University of Naples Federico II, Italy, (ii) to evaluate the effectiveness of recycled rubber FRBs as a low‐cost base isolation system for low‐rise structures against severe seismic events through dynamic testing and (iii) to compare, through tests on the same physical component, the RTHS and shaking table testing techniques. Copyright © 2014 John Wiley & Sons, Ltd.