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http://dx.doi.org/10.5000/EESK.2019.23.1.001

Seismic Performance Test of a Steel Frame with Multi-action Hybrid Dampers  

Roh, Ji Eun (Seismic Retrofit and Remodeling Research Center Dankook University)
Heo, Seok Jae (Seismic Retrofit and Remodeling Research Center Dankook University)
Lee, Sang Hyun (Department of Architectural Engineering, Dankook University)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.23, no.1, 2019 , pp. 1-8 More about this Journal
Abstract
In this study, the effectiveness of a multi-action hybrid damper (MHD) composed of lead rubber bearing (LRB) and friction pad was verified in terms of seismic performance improvement of a frame structure. The LRB and the friction elements are connected in series, so the LRB governs the intial small deformation and the friction determines large deformation behavior. Cyclic loading tests were conducted by using a half scale steel frame structure with the MHD, and the results indicated that the structure became to have the stable trilinear hysteresis with large initial stiffness and first yielding due to the LRB, and the second yielding due to the friction. The MHD could significantly increase the energy dissipation capacity of the structure and the hysteresis curves obtained by tests were almost identical to the analytically estimated ones.
Keywords
Multi action hybrid damper; Seismic performance; Static loading test; Cyclic loading test;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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