Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Seismic Fragility Analysis of Buildings With Combined Shear Wall-Damper System

벽체-감쇠 복합시스템을 갖는 건물의 지진취약도 분석

  • Rajibul Islam (Graduate Student, Department of Civil and Environmental Engineering, Kongju National University) ;
  • Sudipta Chakraborty (Graduate Student, Department of Civil and Environmental Engineering, Kongju National University) ;
  • Kong, ByeongJin (Graduate Student, Department of Civil and Environmental Engineering, Kongju National University) ;
  • Kim, Dookie (Department of Smart Infrastructure Engineering, Kongju National University)
  • Received : 2022.10.18
  • Accepted : 2023.01.17
  • Published : 2023.03.01
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Abstract

Structural vibration induced by earthquake hazards is one of the most significant concerns in structure performance-based design. Structural hazards evoked from seismic events must be properly identified to make buildings resilient enough to withstand extreme earthquake loadings. To investigate the effects of combined earthquake-resistant systems, shear walls and five types of dampers are incorporated in nineteen structural models by altering their arrangements. All the building models were developed as per ACI 318-14 and ASCE 7-16. Seismic fragility curves were developed from the incremental dynamic analyses (IDA) performed by using seven sets of ground motions, and eventually, by following FEMA P695 provisions, the collapse margin ratio (CMR) was computed from the collapse curves. It is evident from the results that the seismic performance of the proposed combined shear wall-damper system is significantly better than the models equipped with shear walls only. The scrutinized dual seismic resisting system is expected to be applied practically to ensure a multi-level shield for tall structures in high seismic risk zones.

Keywords

Acknowledgement

This research was supported by UNDERGROUND CITY OF THE FUTURE program funded by the Ministry of Science and ICT.

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