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http://dx.doi.org/10.5000/EESK.2008.12.2.023

Analysis on Phase Relation between Inertia Force and Dynamic Earth Pressure of Caisson by Numerical Analysis  

Kim, Sung-Ryul (동아대학교 토목공학부)
Jang, Hak-Sung ((주)유신 코퍼레이션 지반본부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.12, no.2, 2008 , pp. 23-31 More about this Journal
Abstract
Dynamic earth pressure acting on geotechnical structures can be driving force or resisting force for the displacement of the structure according to the phase relation between the dynamic earth pressure and inertia force of structures. In this research, the evaluation procedure of the phase relation between the dynamic earth pressure and the inertia force was proposed. According to the procedure, numerical analyses on caisson foundation of bridges were performed and the phase relation was analyzed. The analysis results showed that the dynamic earth pressure becomes the driving force, which increases the displacement of the structure, if the displacement amplitude of ground is larger than that of structure due to the low stiffness of the ground, and the dynamic earth pressure becomes the resisting force against the displacement of the structure if the displacement amplitude of ground is smaller than that of structure due to the high stiffness of the ground.
Keywords
dynamic earth pressure; inertia force; aseismic design; phase relation; caisson foundation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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