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http://dx.doi.org/10.12652/Ksce.2011.31.4C.109

A Study on the Dynamic Behavior of Vertical Shaft in Multi-Layered Soil  

Kim, Yong Min (연세대학교 토목환경공학과)
Jeong, Sang Seom (연세대학교 토목환경공학과)
Kim, Kyoung Yul (한국전력공사 전력연구원)
Lee, Yong Hee (한국수력원자력(주) 중앙연구원)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.4C, 2011 , pp. 109-116 More about this Journal
Abstract
In this study, dynamic response of a vertical shaft subjected to seismic loads was evaluated by three-dimensional Finite Element (FE) approach. The emphasis was on quantifying the ground conditions, input motions and direction of motions. A series of parametric analyses were carried out. From the results of FE analysis, more than 1.7 times increase in shear force and bending moment is obtained when the stiff layer was thinker than the soft layer. And all of the maximum values were occurred near the interface between the soil layers. The dynamic behavior of vertical shaft was significantly influenced by the different frequencies of the input motion, and normalized acceleration of surrounding soil was 3 times larger than vertical shaft.
Keywords
vertical shaft; dynamic analysis; multi-layered soil; earthquake; shear force; bending moment;
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