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http://dx.doi.org/10.5000/EESK.2010.14.3.049

A Study on the Relationship between the Eccentricity and the Level of Damage in the Seismic Response of Buildings with Plan Irregularities  

Jeong, Seoung-Hoon (인하대학교 건축학부)
Lee, Kwang-Ho (인하대학교 건축학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.14, no.3, 2010 , pp. 49-57 More about this Journal
Abstract
Most previous research on the seismic response of structures with plan irregularities have focused on the relationship between the eccentricity and the amount of torsion. This approach cannot provide the direct relationship between the irregularity and the damage. Therefore, an investigation on the relationship between the eccentricities of buildings with plan irregularities and the damage index was performed. Inelastic dynamic time-history analyses were performed on one-story buildings with various eccentricities. For the damage assessment, a 3D damage index was adopted to reflect the effect of the bi-directional response and torsion. Based on the analysis results, buildings with eccentricities of 10%, 20% and 30% will suffer 3~5%, 13~18%, and 33~47% more damage than their regular counterparts, respectively.
Keywords
Plan irregularity; Earthquake response; Eccentricity; Damage index;
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