Title An Analysis of Seismic Response of High - Rise Building with Mid-Story Isolation System According to Change of Characteristics of the Seismic Isolation Device
Authors Kang, Joo-Won
DOI https://doi.org/10.5659/JAIK_SC.2019.35.8.149
Page pp.149-156
ISSN 1226-9107
Keywords Mid-story isolation; Characteristics of seismic isolation system; Seismic response
Abstract In this study, dynamic responses of high - rise buildings were analyzed through the change of horizontal stiffness and yield strength among characteristics of seismic isolation system by applying middle - layer seismic isolation system to high - rise buildings of 120m height. As a result in order to prevent the displacement of the isolation layer and to control the maximum torsion angle, it is possible to appropriately control by increasing or decreasing the horizontal stiffness and the yield strength. However, depending on the maximum torsional angle and the hysteretic behavior of the seismic isolation system, excessive yield strength and horizontal stiffness increase may induce the elastic behavior of the structure and amplify the response. Therefore, it is considered that it is necessary to select the property value of the appropriate isolation device.