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http://dx.doi.org/10.5000/EESK.2003.7.2.039

Statistical Study of Ductility Factors for Elastic Perfectly Plastic SDOF Systems  

Kang, Cheol-Kyu (경기대 대학원)
Choi, Byong-Jeong (경기대 건축학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.7, no.2, 2003 , pp. 39-48 More about this Journal
Abstract
This paper present a summary of the results of statistical study of the ductility factor which is key component of response modification factor(R). To compute the ductility factor, a group of 1,860 ground motions recorded from various earthquake was considered. Based on the local site conditions at the recording station, ground motions were classified into four groups according to average shear wave velocity. Inleastic spectrum were computed for elastic perfectly plastic SDOF systems undergoing different level of inelastic deformation and period. Ductility factors were calculated by deviding elastic response spectrum by inelastic response spectrum. The influence f displacement ductility ratio, site condition, magnitude and epicentral distance on ductility factors were studied. The coefficient of variation was computed to evaluated the dispersion of ductility factors as the defined ratio of the standard deviation to the mean.
Keywords
response modification factor; ductility factor; displacement ductility ratio; site condition;
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Times Cited By KSCI : 1  (Citation Analysis)
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