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作者:

Jin, Liu (Jin, Liu.) | Lu, Kai (Lu, Kai.) | Lei, Yushuang (Lei, Yushuang.) | Du, Xiuli (Du, Xiuli.) | Yu, Wenxuan (Yu, Wenxuan.)

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EI Scopus SCIE

摘要:

The purpose of the research is to investigate the influence of strain rate and shear-span ratio on the shear strength and size effect of Basalt Fiber Reinforced Plastics (BFRP) reinforced concrete beams without stirrups, and then to establish the theoretical formula quantitatively describing the size effect. A three-dimensional meso-scale nu-merical model of BFRP reinforced concrete beams was established to simulate the shear failure of geometrically similar specimens. Finally, a new size effect law was established to predict the shear capacity of BFRP reinforced concrete beams with different structural sizes under dynamic loadings. The results indicate that: 1) the shear capacity of BFRP reinforced concrete beams increases with the increase of strain rate, while the size effect in shear failure of BFRP reinforced concrete beams is weakened simultaneously; 2) the increase of shear-span ratio weakens the strain-rate effect, but has an ignorable influence on the size effect; 3) the new size effect law can be used to quantitatively describe the effect of strain rate on size effect and is in good agreement with the existing experiments.

关键词:

Meso-scale simulation Shear-span ratio Size effect BFRP reinforced concrete beams Strain rate

作者机构:

  • [ 1 ] [Jin, Liu]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 2 ] [Lu, Kai]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 3 ] [Lei, Yushuang]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 4 ] [Du, Xiuli]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 5 ] [Yu, Wenxuan]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China

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来源 :

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING

ISSN: 0734-743X

年份: 2022

卷: 161

5 . 1

JCR@2022

5 . 1 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:49

JCR分区:1

中科院分区:1

被引次数:

WoS核心集被引频次: 11

SCOPUS被引频次: 19

ESI高被引论文在榜: 0 展开所有

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中文被引频次:

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