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Author:

Shen, Botan (Shen, Botan.) | Xu, Weibing (Xu, Weibing.) | Wang, Jin (Wang, Jin.) | Chen, Yanjiang (Chen, Yanjiang.) (Scholars:陈彦江) | Yan, Weiming (Yan, Weiming.) (Scholars:闫维明) | Huang, Jianhui (Huang, Jianhui.) | Tang, Zhenyun (Tang, Zhenyun.)

Indexed by:

EI Scopus SCIE

Abstract:

Energy dissipation is an important method for improving the seismic performance of super high-rise (SHR) structures. However, few quantitative studies have focused on new energy dissipation methods and their application in SHR structures, especially for those under long-period ground motion, including near-fault pulse-type (NFPT) ground motion. Thus, in this study, a 1/20-scale model of a typical SHR structure was designed and manufactured, and various earthquake waves were selected based on the site condition of the structure, such as non-long-period (NLP) ground motion, non-pulse-like long-period (NPLP) ground motion, and NFPT ground motion. Then, a double-layer tuned particle damper (DTPD) was fabricated, its parameters were optimized, and a design method was proposed. Finally, a series of shaking table tests were performed on the scaled model with and without DTPD. The results indicated that the dynamic responses were much greater under NPLP and NFPT than under NLP ground motion. The dynamic responses of the SHR structure were more evident when the value of velocity pulse period was close to that of the natural vibration period of the SHR structure. Moreover, the top floor of the SHR structure clearly exhibited whipcord phenomenon under NPLP and NFPT ground motions. DTPD can effectively decrease the dynamic response of SHRs. The damping performance of the DTPD under NPLP and NFPT was better than that under NLP ground motion. In addition, a smaller damping ratio at the connection between the DTPD and the structure induced a better damping performance from the DTPD.

Keyword:

seismic control near-fault pulse-type ground motion super high-rise structure long-period ground motion without pulse double-layer tuned particle damper

Author Community:

  • [ 1 ] [Shen, Botan]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 2 ] [Xu, Weibing]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Jin]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 4 ] [Chen, Yanjiang]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 5 ] [Yan, Weiming]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 6 ] [Huang, Jianhui]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 7 ] [Xu, Weibing]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 8 ] [Tang, Zhenyun]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China

Reprint Author's Address:

  • [Wang, Jin]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China

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Source :

EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS

ISSN: 0098-8847

Year: 2020

Issue: 3

Volume: 50

Page: 791-810

4 . 5 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:115

Cited Count:

WoS CC Cited Count: 19

SCOPUS Cited Count: 18

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 9

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