Horizontal-Vertical-Rocking Coupled Response Analysis of Vertical Seismic Isolated Structure under Near-Fault Earthquakes
Joint Authors
Liu, Dewen
Zhang, Yafei
Fang, Sitong
Liu, Yang
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-23
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
For vertical isolated structures with excessive vertical eccentricity for mass and vertical stiffness, horizontal-vertical-rocking response needs to be better understood for vertical isolated structures located in near-fault areas, where long-period velocity pulse can be produced.
In this study, a seismic isolation system including quasizero stiffness (QZS) and vertical damper (VD) is used to control near-fault (NF) vertical earthquakes.
The responses of horizontal-vertical-rocking coupling base-isolated structure including quasizero stiffness (QZS) and vertical damper (VD) subjected to NF horizontal and vertical ground motions are investigated.
Nonlinear dynamic analyses are conducted to study the effects of essential parameters such as isolation system eccentricity, static equilibrium position, vertical isolation period, and vertical damping ratio on seismic responses of vertical isolated structure.
It is found that increasing vertical period and damping ratio causes the vertical isolated structures to behave well in reducing rocking responses of structure.
The effect of horizontal-vertical-rocking coupling on vertical seismic isolation efficiency is insignificant.
The vertical seismic isolation remains effective as compared to the system supported on rubber bearings.
The vertical damping can significantly control the vertical displacement and rocking moment.
American Psychological Association (APA)
Liu, Dewen& Zhang, Yafei& Fang, Sitong& Liu, Yang. 2020. Horizontal-Vertical-Rocking Coupled Response Analysis of Vertical Seismic Isolated Structure under Near-Fault Earthquakes. Shock and Vibration،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1210150
Modern Language Association (MLA)
Liu, Dewen…[et al.]. Horizontal-Vertical-Rocking Coupled Response Analysis of Vertical Seismic Isolated Structure under Near-Fault Earthquakes. Shock and Vibration No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1210150
American Medical Association (AMA)
Liu, Dewen& Zhang, Yafei& Fang, Sitong& Liu, Yang. Horizontal-Vertical-Rocking Coupled Response Analysis of Vertical Seismic Isolated Structure under Near-Fault Earthquakes. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1210150
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210150