Seismic performance evaluation of hybrid coupled shear wall system with shear and flexural fuse-type steel coupling beams

Replaceable flexural and shear fuse-type coupling beams are used in hybrid coupled shear wall (HCSW) systems, enabling concrete buildings to be promptly recovered after severe earthquakes. This study aimed to analytically evaluate the seismic behavior of flexural and shear fuse beams situated in sho...

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Bibliographic Details
Published in:Earthquake Engineering and Engineering Vibration 2024-07, Vol.23 (3), p.691-712
Main Authors: Ramezandoust, Zahra, Tajaddini, Abbas, Zarfam, Panam
Format: Article
Language:English
Subjects:
Beams (structural)
Civil Engineering
Concrete
Control
Coupled walls
Coupling
Design factors
Drift
Dynamical Systems
Earth and Environmental Science
Earth Sciences
Earthquakes
Energy dissipation
Energy exchange
Geological hazards
Geotechnical Engineering & Applied Earth Sciences
Ground motion
High rise buildings
Hybrid systems
Performance evaluation
Reinforcing steels
Residual energy
Seismic activity
Seismic hazard
Seismic response
Shear
Shear walls
Steel beams
Two dimensional analysis
Vibration
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Summary:Replaceable flexural and shear fuse-type coupling beams are used in hybrid coupled shear wall (HCSW) systems, enabling concrete buildings to be promptly recovered after severe earthquakes. This study aimed to analytically evaluate the seismic behavior of flexural and shear fuse beams situated in short-, medium- and high-rise RC buildings that have HCSWs. Three building groups hypothetically located in a high seismic hazard zone were studied. A series of 2D nonlinear time history analyses was accomplished in OpenSees, using the ground motion records scaled at the design basis earthquake level. It was found that the effectiveness of fuses in HCSWs depends on various factors such as size and scale of the building, allowable rotation value, inter-story drift ratio, residual drift quantity, energy dissipation value of the fuses, etc. The results show that shear fuses better meet the requirements of rotations and drifts. In contrast, flexural fuses dissipate more energy, but their sectional stiffness should increase to meet other requirements. It was concluded that adoption of proper fuses depends on the overall scale of the building and on how associated factors are considered.
ISSN:1671-3664
1993-503X
DOI:10.1007/s11803-024-2266-4