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http://dx.doi.org/10.14481/jkges.2019.20.12.5

Influence of Predominant Periods of Seismic Waves on a High-rise Building in SSI Dynamic Analyses with the Complete System Model  

You, Kwangho (Department of Civil and Environmental Engineering, University of Suwon)
Kim, Juhyong (Multi-Disaster Mitigation Research Group, Korea Institute of Civil Engineering and Building Technology)
Kim, Seungjin (Department of Civil and Environmental Engineering, University of Suwon)
Publication Information
Journal of the Korean GEO-environmental Society / v.20, no.12, 2019 , pp. 5-14 More about this Journal
Abstract
Recently in Korea, researches on seismic analyses for high-rise buildings in a large city have been increasing because earthquakes have occurred. However, the ground conditions are not included in most of seismic researches and analyses on a high-rise building. Also the influence of the predominant period of a seismic wave is not considered in reality. Therefore, in this study, the influence of the predominant period of a seismic wave on the dynamic behavior of high-rise buildings was analyzed based on the complete system model which can consider the grounds. For this purpose, 2D dynamic analyses based on a linear time history analysis were performed using MIDAS GTS NX, a finite-element based program. Dynamic behavior was analyzed in terms of horizontal displacements, drift ratios, bending stresses, and building weak zones. As a result, in overall, the dynamic response of a high-rise building become bigger as the predominant period of a seismic wave become longer. It was also found that the predominant period had a greater influence than other parameters, ground conditions and peak ground acceleration.
Keywords
High-rise building; Predominant period; Dynamic behavior; SSI;
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Times Cited By KSCI : 2  (Citation Analysis)
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