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(사)한국터널지하공간학회

A comparative study on the behavior of dynamic analysis and pseudo-static analysis considering SSI of a tall building and an adjacent underground structure

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2018, v.20 no.4, pp.671-686
https://doi.org/10.9711/KTAJ.2018.20.4.671


Abstract

Recently, earthquakes have occurred near Gyeongju and Pohang and the social demands are thus being increased for seismic analysis of tall buildings and their adjacent underground structure in big cities. Since most of the previous seismic analysis studies considered a tall building and an adjacent underground structure separately, however, they lack the analysis on dynamic mutual behavior between two structures. Therefore, in this study, a dynamic analysis with a full soil-structure interaction was performed for a complex underground facility with a tall building and an adjacent underground structure constructed on the bedrock with a surface layer. To improve the reliability, in particular, a pseudo-static analysis was performed and compared with the dynamic analysis results. It is comprehensively concluded that the analysis of adjacent underground structures being considered is more conservative than that of not considered.

keywords
Dynamic analysis, Pseudo-static analysis, Soil-structure interaction, Dynamic factor of safety, Adjacent underground structure, 동적해석, 유사정적해석, 지반-구조물 상호작용, 동적안전율, 인접 지하구조물

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(사)한국터널지하공간학회