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Review ListAnalytical study on seismic strengthening of reinforced concrete frame equipped with steel damping system with shear mechanism fuse
Foyouzati, A ; Sharif University of Technology | 2024
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- Type of Document: Article
- DOI: 10.1007/s42107-023-00820-0
- Publisher: 2024
- Abstract:
- Passive energy damper systems have been considered as efficient and practical method to improve seismic behaviour of structures under lateral loads including seismic. In this study, a new passive steel damping system with shear mechanism fuse has been proposed. Design procedures, recommended equations, parametric and analytical studies on this novel system were provided for strengthening and retrofitting purposes of reinforced concrete moment frames. Finite element modelling of flexural behaviour, shear and axial failures of concrete and steel members were conducted by fiber model techniques. Non-linear analysis was conducted to evaluate seismic performance, hysteresis response and stability, controlled damage and guided yielding, stiffness and ultimate strength, ductility, and energy dissipation of this system in comparison with the moment frame. Analytical results explained the proposed damping system improved seismic performance of reinforced concrete moment frame, whilst increased stiffness, strength, energy dissipation by increasing damping in non-linear phase and ductility of structure at the same time. This proposed damping system can be easily replaced after severe earthquakes when it is damaged. This study seeks to promote using this damping system because of its ease of construction, availability, affordability, and economical aspect as well as its seismic performance. © 2023, The Author(s), under exclusive licence to Springer Nature Switzerland AG
- Keywords:
- Damping system ; Ductility ; Energy dissipation ; Moment frame ; Seismic strengthening ; Stiffness
- Source: Asian Journal of Civil Engineering ; Volume 25, Issue 1 , 2024 , Pages 1115-1127 ; 15630854 (ISSN)
- URL: https://link.springer.com/article/10.1007/s42107-023-00820-0