Passive base isolation system for an asymmetric building

Karim S. Numayr, Rami H. Haddad, Qusai D. Ailabouni, Madhar A. Haddad

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the efficiency of base isolation of an asymmetric single-storey building subjected to the EL-CENTRO earthquake is investigated. Three different isolators (lead rubber bearing, high damping rubber bearing, and coil spring) have been employed and their efficiency in reducing the response to the earthquake tested. A magneto-rheological damper is introduced to improve the efficiency of different isolators. The effect of including the soft soil interaction on the performance of the different isolators was also investigated. The building, on grade slab and backfill are treated as lumped mass parameters in the dynamic modelling. The results indicate that passive base isolation enables the reduction of the response of an asymmetric building under dynamic loads and allows the superstructure to act as rigid body. The high damping rubber bearing performed best among the isolators examined, while semi active control allowed a reduction of ninety percent in the dynamic response. Including soil-structure interaction in the dynamic analysis increased the displacement of the suggested one storey building.

Original languageEnglish
Title of host publicationCOMPDYN 2019 - 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Proceedings
EditorsManolis Papadrakakis, Michalis Fragiadakis
PublisherNational Technical University of Athens
Pages460-472
Number of pages13
ISBN (Electronic)9786188284463
DOIs
Publication statusPublished - 2019
Event7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2019 - Crete, Greece
Duration: Jun 24 2019Jun 26 2019

Publication series

NameCOMPDYN Proceedings
Volume1
ISSN (Print)2623-3347

Conference

Conference7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2019
Country/TerritoryGreece
CityCrete
Period6/24/196/26/19

Keywords

  • Asymmetric Building
  • Base Isolators
  • Earthquake
  • Soil-Structure Interaction

ASJC Scopus subject areas

  • Computers in Earth Sciences
  • Geotechnical Engineering and Engineering Geology
  • Computational Mathematics
  • Civil and Structural Engineering

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