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  1. Seismic performance assessment and fragility analysis of concrete structures equipped with self-centered hybrid wall systems

Seismic performance assessment and fragility analysis of concrete structures equipped with self-centered hybrid wall systems

Foyouzati, A ; Sharif University of Technology | 2024

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  1. Type of Document: Article
  2. DOI: 10.1080/23789689.2024.2403866
  3. Publisher: 2024
  4. Abstract:
  5. In this study, comprehensive analytical and parametric studies were conducted on seismic performance, collapse and fragility curves of concrete structures equipped with self-centered unbonded post-tensioned hybrid wall system in comparison with conventional structural wall system. For this purpose, analytical models of prototype buildings were developed and to further study the behaviour of hybrid wall, parametric analysis was performed considering four parameters: wall aspect ratio, initial stress of post-tensioned tendons, the total area of PT tendons, the total area of mild bars. The performance of buildings was evaluated under non-linear quasi cyclic and time history method considering two seismic hazard levels, the design-based earthquake level and the risk-targeted maximum credible earthquake level. Hysteresis response, energy dissipation ability and damping ratio, relative self-centering efficiency, residual drift, peak roof drift, column curvature ductility, incremental dynamic analysis data, seismic collapse assessment and fragility curves for collapse and repairable limit states were studied. © 2024 Informa UK Limited, trading as Taylor & Francis Group
  6. Keywords:
  7. Concrete structures ; Incremental dynamic analysis ; Seismic fragility ; Seismic performance ; Self-centering system ; Concrete buildings ; Concretes ; Earthquake effects ; Model buildings ; Seismic design ; Seismic response ; Walls (structural partitions) ; Fragility analysis ; Fragility curves ; Hybrid wall systems ; Post tensioned ; Seismic collapse assessment ; Seismic performance assessment ; Aspect ratio
  8. Source: Sustainable and Resilient Infrastructure ; 2024 ; 23789689 (ISSN)
  9. URL: https://www.tandfonline.com/doi/abs/10.1080/23789689.2024.2403866