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http://dx.doi.org/10.5000/EESK.2016.20.5.311

Inelastic Response Evaluation of Lead-Rubber Bearing Considering Heating Effect of Lead Core  

Yang, Kwang-Kyu (Department of Civil Engineering, Kangwon National University)
Song, Jong-Keol (Department of Civil Engineering, Kangwon National University)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.20, no.5, 2016 , pp. 311-318 More about this Journal
Abstract
The lead-rubber bearing (LRB) dissipates seismic energy through plastic deformation of lead core. Under large-displacement cyclic motion, the temperature increases in the lead core. The shear strength of a lead-rubber bearing is reduced due to the heating effect of the lead core. In this study, the seismic responses such as displacement increasing, shear strength and vertical stiffness degradations of LRB due to the heating effect are evaluated for design basis earthquake (DBE) and beyond design basis earthquake (150% DBE, 167% DBE, 200% DBE).
Keywords
Lead-rubber bearing (LRB); Heating effect; Shear strength degradation; Design basis earthquake; Beyond design basis earthquake;
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