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http://dx.doi.org/10.9711/KTAJ.2019.21.2.211

A comparative study on the numerical analysis program by SSI analysis of a high-rise building and an adjacent underground structure  

You, Kwang-Ho (Dept. of Civil and Environmental Engineering, University of Suwon)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.21, no.2, 2019 , pp. 211-225 More about this Journal
Abstract
Recently, earthquakes have occurred throughout the entire region of Korea and seismic analysis studies have been actively conducted in various fields. SSI analyses studies considering ground have been carried out consistently. However, few comparative analyses have been performed on the dynamic behavior of buildings according to numerical analysis method in the case of the previous dynamic analyses considering grounds. Therefore, in this study, the dynamic analyses were performed on a high-rise building by using both a finite element program MIDAS GTS NX and a finite difference program FLAC 2D. The results were compared and analyzed each other. As a result, both the maximum compressive and tensile bending stresses of above ground and below ground part were estimated to be a little larger by MIDAS GTS NX than by FLAC 2D. However, the maximum horizontal displacement value, the horizontal displacement distribution, and the position of weak part were turned out to be similar in both analysis programs. Therefore, it can be concluded that there is no difference in using either a finite element program or a finite difference program for the convenience of a user for a dynamic analysis.
Keywords
Finite element method; Finite difference method; SSI; High-rise building;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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