Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure
A double-layer tuned mass damper (DTMD) has advantages of wide damping frequency band and strong robustness. At present, there is a lack of seismic design methods for high-rise structures based on DTMDs. In this study, a DTMD parameter optimisation method was proposed, with the objective of minimisi...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/7523127 |
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| _version_ | 1832545994050371584 |
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| author | Botan Shen Jin Wang Weibing Xu Yanjiang Chen Weiming Yan Jianhui Huang Zhenyun Tang |
| author_facet | Botan Shen Jin Wang Weibing Xu Yanjiang Chen Weiming Yan Jianhui Huang Zhenyun Tang |
| author_sort | Botan Shen |
| collection | DOAJ |
| description | A double-layer tuned mass damper (DTMD) has advantages of wide damping frequency band and strong robustness. At present, there is a lack of seismic design methods for high-rise structures based on DTMDs. In this study, a DTMD parameter optimisation method was proposed, with the objective of minimising the peak displacement response of a first N-order vibration modal with a vibration mass participation factor of 85%. Then, a scale model of a high-rise structure was fabricated, along with a corresponding DTMD. Different types of excitations were chosen to clarify the dynamic responses of the model with and without the DTMD, including Site-II ground motions, long-period (LP) ground motions without pulses, and near-fault pulse-type (NFPT) ground motions. The results indicate that the dynamic responses of high-rise structures under LP and NFPT ground motions are much greater than those under Site-II ground motions. The DTMD can effectively reduce the absolute displacement response, acceleration response, and strain response at the top floor of the test model. However, the DTMD has a time delay in providing the damping effect. A smaller damping ratio between the upper TMD and the controlled structure will lead to a more significant damping effect for the DTMD. |
| format | Article |
| id | doaj-art-6ef9050ac1f54423b46905751d963ca4 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-6ef9050ac1f54423b46905751d963ca42025-02-03T07:24:11ZengWileyShock and Vibration1875-92032021-01-01202110.1155/2021/7523127Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise StructureBotan Shen0Jin Wang1Weibing Xu2Yanjiang Chen3Weiming Yan4Jianhui Huang5Zhenyun Tang6Beijing Key Laboratory of Earthquake Engineering and Structure RetrofitBeijing Key Laboratory of Earthquake Engineering and Structure RetrofitBeijing Key Laboratory of Earthquake Engineering and Structure RetrofitBeijing Key Laboratory of Earthquake Engineering and Structure RetrofitBeijing Key Laboratory of Earthquake Engineering and Structure RetrofitBeijing Key Laboratory of Earthquake Engineering and Structure RetrofitThe Key Laboratory of Urban Security and Disaster Engineering of Ministry of EducationA double-layer tuned mass damper (DTMD) has advantages of wide damping frequency band and strong robustness. At present, there is a lack of seismic design methods for high-rise structures based on DTMDs. In this study, a DTMD parameter optimisation method was proposed, with the objective of minimising the peak displacement response of a first N-order vibration modal with a vibration mass participation factor of 85%. Then, a scale model of a high-rise structure was fabricated, along with a corresponding DTMD. Different types of excitations were chosen to clarify the dynamic responses of the model with and without the DTMD, including Site-II ground motions, long-period (LP) ground motions without pulses, and near-fault pulse-type (NFPT) ground motions. The results indicate that the dynamic responses of high-rise structures under LP and NFPT ground motions are much greater than those under Site-II ground motions. The DTMD can effectively reduce the absolute displacement response, acceleration response, and strain response at the top floor of the test model. However, the DTMD has a time delay in providing the damping effect. A smaller damping ratio between the upper TMD and the controlled structure will lead to a more significant damping effect for the DTMD.http://dx.doi.org/10.1155/2021/7523127 |
| spellingShingle | Botan Shen Jin Wang Weibing Xu Yanjiang Chen Weiming Yan Jianhui Huang Zhenyun Tang Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure Shock and Vibration |
| title | Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure |
| title_full | Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure |
| title_fullStr | Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure |
| title_full_unstemmed | Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure |
| title_short | Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure |
| title_sort | experimental research on damping effect of double layer tuned mass damper for high rise structure |
| url | http://dx.doi.org/10.1155/2021/7523127 |
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