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http://dx.doi.org/10.7782/JKSR.2012.15.4.413

Single Degree of Freedom Hybrid Dynamic Test with Steel Frame Structure  

Kim, Se-Hoon (Korea Railroad Research Institute)
Na, Ok-Pin (Korea Railroad Research Institute)
Kim, Sung-Il (Korea Railroad Research Institute)
Lee, Jae-Jin (MTS Korea. Inc.)
Kang, Dae-Hung (Korean Intellectual Property Office, Government Complex Daejeon)
Publication Information
Journal of the Korean Society for Railway / v.15, no.4, 2012 , pp. 413-421 More about this Journal
Abstract
The purpose of this study is to evaluate the structural dynamic behavior under hybrid control system. The hybrid test is to consider the interaction between the numerical and physical models. In this paper, single degree of freedom hybrid test was performed with one-bay, two-story steel frame structure. One column at the first floor was selected as a physical substructure and one actuator was used for applying the displacement load in horizontal direction. El Centro as earthquake waves was inputted and OpenSees was employed as the numerical analysis program for the hybrid real-time simulation. As a result, the total time of the hybrid test was about 9.6% of actual measured seismic period. The experimental results agreed well with the numerical one in terms of the maximum displacement. In nonlinear analysis, however, material nonlinearity made a difference of residual strain. Therefore, this hybrid dynamic test can be used to predict the structural dynamic performance more effectively than shaking table test, because of the spatial and economic limitations.
Keywords
Hybrid test; Steel frame structure; SDOF; Dynamic test; Sub-structure;
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Times Cited By KSCI : 2  (Citation Analysis)
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