The Numerical Study of Base-Isolated Buildings Under Near-Field and Far-Field Earthquakes

The behavior of base-isolated building frame is investigated with the help of a numerical study for far-field and near-field earthquakes with directivity and fling-step effects. Both design-level and extreme-level earthquakes are considered. Selected response parameters are peak floor displacement,...

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Bibliographic Details
Published in:Journal of earthquake engineering : JEE 2018-07, Vol.22 (6), p.989-1007
Main Authors: Bhandari, M., Bharti, S. D., Shrimali, M. K., Datta, T. K.
Format: Article
Language:English
Subjects:
Base Isolation
Base-Isolated Structure
Building frames
Buildings
Design
Displacement
Earthquakes
Far- and Near-Field Earthquakes
Inelastic Deformation
Nonlinear analysis
Numerical Study
Seismic activity
Seismic design
Seismic isolation
Seismic response
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Summary:The behavior of base-isolated building frame is investigated with the help of a numerical study for far-field and near-field earthquakes with directivity and fling-step effects. Both design-level and extreme-level earthquakes are considered. Selected response parameters are peak floor displacement, acceleration, base shear, and isolator displacement. Inelastic behavior of base-isolated structure during the earthquake is investigated performing nonlinear time history analysis of a ten-story building frame. This study shows that base isolation is not effective for near-field earthquakes. Even for design-level earthquake, the frame gets significantly into inelastic range for earthquakes with fling-step effect.
ISSN:1363-2469
1559-808X
DOI:10.1080/13632469.2016.1269698