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http://dx.doi.org/10.14481/jkges.2019.20.10.5

A Comparative Study on the Behavior of High-rise Buildings by 2D and 3D Dynamic Analysis with Considering the Ground  

You, Kwangho (Department of Civil and Environmental Engineering, University of Suwon)
Baek, Yong (Multi Disaster Countermeasures Organization, 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.10, 2019 , pp. 5-14 More about this Journal
Abstract
Recently, earthquakes have occurred in our country and seismic stability of high-rise buildings in large cities is being a growing interest and thus the related studies have been increased. Also the grounds are considered indirectly in most of seismic designs and analyses and seismic researches based on 3D dynamic analysis are insufficient. In this study, therefore, 2D and 3D dynamic analyses were performed based on the SSI complete model including grounds and the behavior was compared and analyzed. For dynamic modeling, linear time history analyses were performed by using MIDAS GTS NX. For this purpose, a high-rise building was assumed to be constructed on top of the bedrock and surrounded by a surface layer. A sensitivity analysis was performed with the selected parameters. The dynamic behavior was compared and analyzed in terms of horizontal displacements, drift ratios, bending stresses, and weak parts. In most cases, 2D dynamic behavior was calculated to be larger than 3D's and thus it shows more conservative results with increasing number and size of weak parts.
Keywords
High-rise building; 2D and 3D; Dynamic behavior; SSI;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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