Optimal Design and Seismic Performance of Base-Isolated Structures with Varying Heights Equipped with Tuned Inerter Dampers Subjected to Far-Fault and Near-Fault Ground Motions
This paper investigates the optimal design of base-isolated structures equipped with tuned inerter dampers (TIDs) subjected to various ground motions. The Clough–Penzien model is employed to simulate the power spectrum of three types of ground motions: far-fault, near-fault without pulse subset, and...
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2025-04-01
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| author | Yingjie Kang Zewen Zhang Zeyu Zhang Xinyu Zhang Qingkuan Liu |
| author_facet | Yingjie Kang Zewen Zhang Zeyu Zhang Xinyu Zhang Qingkuan Liu |
| author_sort | Yingjie Kang |
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| description | This paper investigates the optimal design of base-isolated structures equipped with tuned inerter dampers (TIDs) subjected to various ground motions. The Clough–Penzien model is employed to simulate the power spectrum of three types of ground motions: far-fault, near-fault without pulse subset, and near-fault with pulse subset, with the relevant parameters identified based on actual ground motions. The optimal parameters of the TID for base-isolated structures are determined using the H<sup>2</sup> optimization criterion to reduce the structural displacement response. The impact of relevant design properties about the optimal parameters is analyzed. The seismic control effectiveness of the TID for 5-storey, 10-storey, and 15-storey base-isolated structures with varying heights is then evaluated through time history analysis, considering far-fault, near-fault without pulse subset, and near-fault with pulse subset ground motions. The main conclusions of this study are as follows: the ground motion type, the natural vibration period of the isolated structure, the damping ratio of the isolated structure and the mass ratio of the TID all affect the optimal parameters and should be analyzed based on specific circumstances. The control effectiveness of the TID on displacement and acceleration response is more pronounced under far-fault ground motion than under near-fault ground motion. The TID equipped in the isolation storey exhibits considerable effectiveness in controlling the seismic response of 5-storey and 10-storey base isolated structures, while it exhibits weaker control over the seismic response of the 15-storey structure. Additionally, while the TID primarily targets displacement response control, it also exhibits substantial control over the absolute acceleration response of the structure. |
| format | Article |
| id | doaj-art-036656eb68ab46fd851f34fedeacf97e |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-04-01 |
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| series | Applied Sciences |
| spelling | doaj-art-036656eb68ab46fd851f34fedeacf97e2025-08-20T02:59:14ZengMDPI AGApplied Sciences2076-34172025-04-01159473910.3390/app15094739Optimal Design and Seismic Performance of Base-Isolated Structures with Varying Heights Equipped with Tuned Inerter Dampers Subjected to Far-Fault and Near-Fault Ground MotionsYingjie Kang0Zewen Zhang1Zeyu Zhang2Xinyu Zhang3Qingkuan Liu4Key Laboratory of Roads and Railway Engineering Safety Control, Shijiazhuang Tiedao University, Ministry of Education, Shijiazhuang 050043, ChinaSchool of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, ChinaSchool of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, ChinaSchool of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, ChinaInnovation Center for Wind Engineering and Wind Energy Technology of Hebei Province, Shijiazhuang 050043, ChinaThis paper investigates the optimal design of base-isolated structures equipped with tuned inerter dampers (TIDs) subjected to various ground motions. The Clough–Penzien model is employed to simulate the power spectrum of three types of ground motions: far-fault, near-fault without pulse subset, and near-fault with pulse subset, with the relevant parameters identified based on actual ground motions. The optimal parameters of the TID for base-isolated structures are determined using the H<sup>2</sup> optimization criterion to reduce the structural displacement response. The impact of relevant design properties about the optimal parameters is analyzed. The seismic control effectiveness of the TID for 5-storey, 10-storey, and 15-storey base-isolated structures with varying heights is then evaluated through time history analysis, considering far-fault, near-fault without pulse subset, and near-fault with pulse subset ground motions. The main conclusions of this study are as follows: the ground motion type, the natural vibration period of the isolated structure, the damping ratio of the isolated structure and the mass ratio of the TID all affect the optimal parameters and should be analyzed based on specific circumstances. The control effectiveness of the TID on displacement and acceleration response is more pronounced under far-fault ground motion than under near-fault ground motion. The TID equipped in the isolation storey exhibits considerable effectiveness in controlling the seismic response of 5-storey and 10-storey base isolated structures, while it exhibits weaker control over the seismic response of the 15-storey structure. Additionally, while the TID primarily targets displacement response control, it also exhibits substantial control over the absolute acceleration response of the structure.https://www.mdpi.com/2076-3417/15/9/4739tuned inerter damperbase-isolated structuresoptimal designseismic performancefar-fault ground motionsnear-fault ground motions |
| spellingShingle | Yingjie Kang Zewen Zhang Zeyu Zhang Xinyu Zhang Qingkuan Liu Optimal Design and Seismic Performance of Base-Isolated Structures with Varying Heights Equipped with Tuned Inerter Dampers Subjected to Far-Fault and Near-Fault Ground Motions Applied Sciences tuned inerter damper base-isolated structures optimal design seismic performance far-fault ground motions near-fault ground motions |
| title | Optimal Design and Seismic Performance of Base-Isolated Structures with Varying Heights Equipped with Tuned Inerter Dampers Subjected to Far-Fault and Near-Fault Ground Motions |
| title_full | Optimal Design and Seismic Performance of Base-Isolated Structures with Varying Heights Equipped with Tuned Inerter Dampers Subjected to Far-Fault and Near-Fault Ground Motions |
| title_fullStr | Optimal Design and Seismic Performance of Base-Isolated Structures with Varying Heights Equipped with Tuned Inerter Dampers Subjected to Far-Fault and Near-Fault Ground Motions |
| title_full_unstemmed | Optimal Design and Seismic Performance of Base-Isolated Structures with Varying Heights Equipped with Tuned Inerter Dampers Subjected to Far-Fault and Near-Fault Ground Motions |
| title_short | Optimal Design and Seismic Performance of Base-Isolated Structures with Varying Heights Equipped with Tuned Inerter Dampers Subjected to Far-Fault and Near-Fault Ground Motions |
| title_sort | optimal design and seismic performance of base isolated structures with varying heights equipped with tuned inerter dampers subjected to far fault and near fault ground motions |
| topic | tuned inerter damper base-isolated structures optimal design seismic performance far-fault ground motions near-fault ground motions |
| url | https://www.mdpi.com/2076-3417/15/9/4739 |
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