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Study on tuned damping mechanism and performance of frame-distributed bi-rocking tubes-core tube system
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Hao-xiang HE1, Yi-fei CHEN1, 2, Shi-tao CHENG1, Bing-ji LAN1
Journal of Vibration Engineering | 2024, 37(9) : 1593 - 1605
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Journal of Vibration Engineering | 2024, 37(9): 1593-1605
Study on tuned damping mechanism and performance of frame-distributed bi-rocking tubes-core tube system
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Hao-xiang HE1, Yi-fei CHEN1, 2, Shi-tao CHENG1, Bing-ji LAN1
Affiliations
  • 1Beijing Key Lab of Earthquake Engineering and Structural Retrofit,Beijing University of Technology, Beijing 100124, China
  • 2School of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
Published: 2024-09-28 doi: 10.16385/j.cnki.issn.1004-4523.2024.09.016
Outline
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In order to reduce the tube area proportion of the traditional frame-core tube (FCT) structure system and improve the structural economy,a high-rise structural system of the frame-distributed tubes-core tube (FDCT) is designed. The distributed tubes and rocking system are combined to form the frame-distributed rocking tubes-core tube (FDRCT) structural system,which can control the deformation mode of the structure. To reduce the adverse effects of higher modes on high-rise structures,the frame-distributed bi-rocking tubes-core tube (FDBRCT) structural system with tuned damping performance is further proposed. The dynamic models and equations of the structure are established,and the stationary random vibration analysis is carried out,which preliminarily proves that the FDBRCT structure can reduce the dynamic response of the structure more effectively. By comparing and analyzing the structural time-history analysis results of the FCT,FDCT,FDRCT and FDBRCT,the seismic capacity of the FDCT structure decreases is due to the stiffness weakening. The FDRCT structure improves the uniform degree of structural deformation,and the upper floors acceleration decreases,but the roof displacement increases. Compared with the FDRCT structure,the maximum of inter-story drift ratio of the FDBRCT structure increases significantly and the structural deformation is more uniform. Besides,the roof displacement response and internal force demand decrease appropriately. The distributed bi-rocking tubes with tuned damping brings on better seismic capacity and damping performance of the FDBRCT structure,which can improve the economy at the same time.

frame-core tube structure  /  distributed rocking tube  /  distributed bi-rocking tube  /  higher order mode shape  /  tuned seismic mitigation
Hao-xiang HE, Yi-fei CHEN, Shi-tao CHENG, Bing-ji LAN. Study on tuned damping mechanism and performance of frame-distributed bi-rocking tubes-core tube system[J]. Journal of Vibration Engineering, 2024 , 37 (9) : 1593 -1605 . DOI: 10.16385/j.cnki.issn.1004-4523.2024.09.016
Year 2024 volume 37 Issue 9
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.2024.09.016
  • Receive Date:2022-09-20
  • Online Date:2026-02-12
  • Published:2024-09-28
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  • Received:2022-09-20
  • Revised:2023-02-05
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Affiliations
    1Beijing Key Lab of Earthquake Engineering and Structural Retrofit,Beijing University of Technology, Beijing 100124, China
    2School of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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