Investigating the effects of seismic isolators on steel asymmetric structures considering soil-structure interaction

Building isolation is a practical and ubiquitous method for reducing inter-story drift and story acceleration. Previously it has been shown that since an isolator can increase the time period and damping, it can decrease the total energy transmitted from the ground to the structure. The main purpose of this study was to investigate the behavior of asymmetric sliding buildings with steel moment frame systems subject to earthquake loading (both horizontal and vertical), while taking into account the effects of soil-structure interaction. A total of 24 three-dimensional structural models, including a single-story structure (40% irregularity), a five-story structure (regularity, 20%, 40% and 60% irregularity) and a ten-story structure (40% irregular) were dynamically analyzed using nonlinear finite element analysis. The results of this study indicated that, in terms of inter-story drift and story accelerations, seismic isolation had a significant impact on the dynamic responses of structures. This effect was more pronounced in single-story structures than in others. Additionally, the results showed that structural irregularities did not affect the dynamic response of the structure, including the displacement and acceleration of the stories. Furthermore, this study showed that when soil is converted from type II to types III and IV, the displacement and slipping speed decreased for all studied structures. Lastly, the results suggested that substructure soil typology had a significant effect on the design parameters of isolators.

© This manuscript version is made available under the CC-BY-NC-ND 4.0 license



Work Title Investigating the effects of seismic isolators on steel asymmetric structures considering soil-structure interaction
Open Access
  1. Sahar Radkia
  2. Rohola Rahnavard
  3. Hesham Tuwair
  4. Farhad Abbas Gandomkar
  5. Rebecca Napolitano
License CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives)
Work Type Article
  1. Elsevier BV
Publication Date October 2020
Publisher Identifier (DOI)
  1. 10.1016/j.istruc.2020.07.019
  1. Structures
Deposited September 09, 2021




This resource is currently not in any collection.

Work History

Version 1

  • Created
  • Added Investigating+the+effects+of+seismic+isolators+on+steel+asymmetric+structures+considering+soil-structure+interaction-1.docx
  • Added Creator Sahar Radkia
  • Added Creator Rohola Rahnavard
  • Added Creator Hesham Tuwair
  • Added Creator Farhad Abbas Gandomkar
  • Added Creator Rebecca Napolitano
  • Published
  • Updated
  • Updated