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A platform for research: civil engineering, architecture and urbanism
Evaluation of seismic performance of connected adjacent buildings using fragility curves
https://orcid.org/0000-0002-4055-1099
https://orcid.org/0000-0001-6347-2724
Abstract One of the effective methods to reduce the seismic response of the adjacent buildings is to connect these buildings by passive dampers. In this research, the seismic performance of this type of control system is evaluated using fragility curves. Furthermore, the parameters and arrangement of the connecting viscous dampers are investigated. For this purpose, two 8- and 12-story RC special moment-resisting frame buildings are connected by viscous dampers. After obtaining the appropriate parameters and arrangement of dampers, incremental dynamic analysis was performed under 22 far-field ground motions using OpenSees software. Assuming a log-normal distribution, the probability of exceedance of the performance level is calculated at each maximum ground acceleration value as a fragility curve. The fragility curves show that the connection of adjacent buildings by viscous dampers will improve the seismic performance of both connected buildings compared to the corresponding results of single uncontrolled buildings.
Highlights The optimal seismic performance of connected buildings is achieved when the dampers are on the same floor level. Viscous dampers reduce inter-story drift and floor levels drifts in both connected buildings by reducing maximum drift. The study found that connecting buildings significantly improved their seismic performance, particularly in shorter buildings.
Evaluation of seismic performance of connected adjacent buildings using fragility curves
https://orcid.org/0000-0002-4055-1099
https://orcid.org/0000-0001-6347-2724
Abstract One of the effective methods to reduce the seismic response of the adjacent buildings is to connect these buildings by passive dampers. In this research, the seismic performance of this type of control system is evaluated using fragility curves. Furthermore, the parameters and arrangement of the connecting viscous dampers are investigated. For this purpose, two 8- and 12-story RC special moment-resisting frame buildings are connected by viscous dampers. After obtaining the appropriate parameters and arrangement of dampers, incremental dynamic analysis was performed under 22 far-field ground motions using OpenSees software. Assuming a log-normal distribution, the probability of exceedance of the performance level is calculated at each maximum ground acceleration value as a fragility curve. The fragility curves show that the connection of adjacent buildings by viscous dampers will improve the seismic performance of both connected buildings compared to the corresponding results of single uncontrolled buildings.
Highlights The optimal seismic performance of connected buildings is achieved when the dampers are on the same floor level. Viscous dampers reduce inter-story drift and floor levels drifts in both connected buildings by reducing maximum drift. The study found that connecting buildings significantly improved their seismic performance, particularly in shorter buildings.
Evaluation of seismic performance of connected adjacent buildings using fragility curves
https://orcid.org/0000-0002-4055-1099
https://orcid.org/0000-0001-6347-2724
Abstract One of the effective methods to reduce the seismic response of the adjacent buildings is to connect these buildings by passive dampers. In this research, the seismic performance of this type of control system is evaluated using fragility curves. Furthermore, the parameters and arrangement of the connecting viscous dampers are investigated. For this purpose, two 8- and 12-story RC special moment-resisting frame buildings are connected by viscous dampers. After obtaining the appropriate parameters and arrangement of dampers, incremental dynamic analysis was performed under 22 far-field ground motions using OpenSees software. Assuming a log-normal distribution, the probability of exceedance of the performance level is calculated at each maximum ground acceleration value as a fragility curve. The fragility curves show that the connection of adjacent buildings by viscous dampers will improve the seismic performance of both connected buildings compared to the corresponding results of single uncontrolled buildings.
Highlights The optimal seismic performance of connected buildings is achieved when the dampers are on the same floor level. Viscous dampers reduce inter-story drift and floor levels drifts in both connected buildings by reducing maximum drift. The study found that connecting buildings significantly improved their seismic performance, particularly in shorter buildings.
Evaluation of seismic performance of connected adjacent buildings using fragility curves
Yarali, MohammadHossein (author) / Fathi, Farshid (author)
2023-10-25
Article (Journal)
Electronic Resource
English
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