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http://dx.doi.org/10.5000/EESK.2016.20.5.285

Dynamic Centrifuge Tests for Evaluating the Earthquake Load of the Structure on Various Foundation Types  

Ha, Jeong Gon (Department of civil and environmental engineering, KAIST)
Jo, Seong Bae (Infrastructure Research Center, K-water Institute)
Park, Heon Joon (Department of civil and environmental engineering, KAIST)
Kim, Dong Kwan (R&D team, SEN Structural Engineers Co., Ltd.)
Kim, Dong Soo (Department of civil and environmental engineering, KAIST)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.20, no.5, 2016 , pp. 285-293 More about this Journal
Abstract
Soil-foundation-structure interaction (SFSI) is one of the important issues in the seismic design for evaluating the exact behavior of the system. A seismic design of a structure can be more precise and economical, provided that the effect of SFSI is properly taken into account. In this study, a series of the dynamic centrifuge tests were performed to compare the seismic response of the single degree of freedom(SDOF) structure on the various types of the foundation. The shallow and pile foundations were made up of diverse mass and different conjunctive condition, respectively. The test specimen consisted of dry sand deposit, foundation, and SDOF structure in a centrifuge box. Several types of earthquake motions were sequentially applied to the test specimen from weak to strong intensity of them, which is known as a stage test. Results from the centrifuge tests showed that the seismic responses of the SDOF structure on the shallow foundation and disconnected pile foundation decreased by the foundation rocking. On the other hand, those on the connected pile foundation gradually increased with intensity of input motion. The allowable displacement of the foundation under the strong earthquake, the shallow and the disconnected pile foundation, have an advantage in dissipating the earthquake energy for the seismic design.
Keywords
Soil-Foundation-Structure Interaction; Dynamic centrifuge test; Shallow foundation; Pile foundation; Seismic design;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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