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Author:

Liu, Yibin (Liu, Yibin.) | Cao, Wanlin (Cao, Wanlin.) | Yang, Zhaoyuan (Yang, Zhaoyuan.) | Bian, Jinliang (Bian, Jinliang.) | Bao, Xin (Bao, Xin.)

Indexed by:

EI Scopus SCIE

Abstract:

Relatively few studies have been conducted on the seismic performance of recycled aggregate concrete (RAC) shear walls with concealed bracing. To promote the development of high-performance green building structures and the application of RAC in structural components, the seismic performance of RAC shear walls under different influencing factors was tested, and low-cycle reversed loading tests were performed on ten RAC shear walls with different shear-to-span ratios. The test parameters included the recycled coarse aggregate (RCA) replacement ratio, the recycled fine aggregate (RFA) replacement ratio, the axial compression ratio, the shear span ratio and whether to set up the concealed bracing. The influence of the above variables on the seismic performance was then assessed. The results revealed that the bearing capacity, ductility, stiffness and energy dissipation capacity of the RAC shear walls decreased in line with an increase in the replacement ratio of the RFA. However, the bearing capacity, energy consumption and stiffness of the RAC shear walls decreased within 10% and the ductility decreased within 15%. The RAC shear walls were able to meet the seismic requirements of the building structure after reasonable design and use. As the axial compression ratio increased, the bearing capacity of the RAC shear walls improved, but their elastic-plastic deformation capacity was reduced. Setting the concealed bracing significantly improved the seismic performance of the RAC shear walls, such that they achieved a seismic performance close to that of the natural aggregate concrete (NAC) shear wall. After setting up the concealed bracing, the load carrying capacity of the RAC shear walls increased by up to 15%, the ductility increased by up to 20% and the energy consumption capacity increased by up to 50%. A mechanical calculation model of the RAC shear wall was then established by considering the effect of recycled aggregate, the calculated results of which were a good match with the test results.

Keyword:

concealed bracing recycled aggregate concrete low-cycle reversed loading test seismic performance shear wall

Author Community:

  • [ 1 ] [Liu, Yibin]Beijing Bldg Rasearch Inst Corp Ltd, CSCEC, Beijing 100076, Peoples R China
  • [ 2 ] [Cao, Wanlin]Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Yang, Zhaoyuan]Tsinghua Univ, Dept Civil Engn, Beijing 100084, Peoples R China
  • [ 4 ] [Bian, Jinliang]Tianjin Chengjian Univ, Tianjin Key Lab Civil Struct Protect & Reinforceme, Tianjin 300384, Peoples R China
  • [ 5 ] [Bao, Xin]Dalian Univ Technol, Fac Infrastructure Engn, Dalian 116024, Peoples R China

Reprint Author's Address:

  • [Cao, Wanlin]Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing 100124, Peoples R China;;[Bian, Jinliang]Tianjin Chengjian Univ, Tianjin Key Lab Civil Struct Protect & Reinforceme, Tianjin 300384, Peoples R China;;

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Source :

BUILDINGS

Year: 2024

Issue: 9

Volume: 14

3 . 8 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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