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作者:

Wang, Fei (Wang, Fei.) | Zhang, Jianwei (Zhang, Jianwei.) (学者:张建伟) | Liu, Weiheng (Liu, Weiheng.) | Zhao, Di (Zhao, Di.) | Cao, Wanlin (Cao, Wanlin.)

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EI Scopus SCIE

摘要:

To investigate the post -earthquake repairability of the resilient structure utilizing ultra -high strength bar, an earthquake -damaged piloti-type masonry structure specimen reinforced with ultra -high strength bar was rehabilitated through a composite rehabilitation strategy. The rehabilitation approach incorporated a prefabricated steel sleeve and carbon fiber reinforced polymer was adopted for the frame -shear wall structure at the piloti-storey, along with a combination of steel plate application and steel mesh mortar for repairing the masonry wall. The seismic behavior of the rehabilitated structure was investigated through quasi -static test and OpenSees numerical simulation platform. The results showed that: The piloti-type masonry structure with ultra -high strength rebar showed excellent repairability. The rehabilitation strategy in this study significantly enhanced the stiffness of the damaged recycled aggregate masonry wall, improved the shear resistance of the shear wall, and enhanced the deformation performance of the rehabilitated piloti-type structure. In comparison with the control specimen, the stiffness degradation rate of the rehabilitated specimen decreased obviously, the peak carrying capacity and ultimate drift increased by 21.6 % and 35.4 %, respectively. Moreover, the piloti-storey drift of the rehabilitated specimen can reach 2 %. These research findings serve as a solid foundation for further exploration of post -earthquake repairability in resilient structures and the seismic performance of rehabilitated structures.

关键词:

Resilience Seismic behavior Ultra -high strength bar Recycled aggregate piloti-type structure Rehabilitation

作者机构:

  • [ 1 ] [Wang, Fei]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China
  • [ 2 ] [Zhang, Jianwei]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China
  • [ 3 ] [Liu, Weiheng]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China
  • [ 4 ] [Zhao, Di]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China
  • [ 5 ] [Cao, Wanlin]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China

通讯作者信息:

  • 张建伟

    [Zhang, Jianwei]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China

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来源 :

JOURNAL OF BUILDING ENGINEERING

年份: 2024

卷: 84

6 . 4 0 0

JCR@2022

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SCOPUS被引频次: 1

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