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作者:

Li, Xiangyu (Li, Xiangyu.) | Zhang, Jianwei (Zhang, Jianwei.) (学者:张建伟) | Cao, Wanlin (Cao, Wanlin.) | Zhu, Yuxuan (Zhu, Yuxuan.)

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摘要:

Four steel fiber reinforced high strength concrete shear walls with different embedded steel configurations were conducted under quasi-static tests, to investigate the influences of the diagonal steel bar bracings in the wall web, the embedded steel tubes in the boundary zone, and the concealed steel truss on the seismic behavior of the proposed shear walls. Furthermore, the finite element modelling and the parametric analysis were conducted and verified against the test results. Research shows that both the reinforcement bracings and the channel steel bracings restrained the development of cracks and decreased the crack widths, especially the channel steel bracings, which showed a more remarkable effect on alleviating the damage of the wall. The two types of the concealed bracings could slow down the stiffness degradation rate, and enhance the plastic deformation capacity of the shear walls. The finite element analysis indicated that a reasonable axial load ratio was conductive to exert the cyclic behavior of the concealed bracings. For the steel truss reinforced concrete walls, the increase of the cross sectional ratio of steel tubes within a reasonable range could improve the co-working performance for the wall panel and the boundary columns.

关键词:

Shear walls with concealed bracings Hysteretic behavior Steel fiber reinforced concrete High strength concrete Finite element analysis

作者机构:

  • [ 1 ] [Li, Xiangyu]Beijing Forestry Univ, Sch Soil & Water Conservat, Dept Civil Engn, Beijing 100083, Peoples R China
  • [ 2 ] [Zhang, Jianwei]Beijing Univ Technol, Key Lab Urban Secur Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 3 ] [Cao, Wanlin]Beijing Univ Technol, Key Lab Urban Secur Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 4 ] [Zhu, Yuxuan]China Construct Second Engn Bur Co Ltd, Beijing, Peoples R China

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来源 :

JOURNAL OF BUILDING ENGINEERING

年份: 2022

卷: 53

6 . 4

JCR@2022

6 . 4 0 0

JCR@2022

JCR分区:1

中科院分区:2

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