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作者:

Li, Dong (Li, Dong.) | Yang, Bo (Yang, Bo.) | Zhang, Jiangxing (Zhang, Jiangxing.) | Jin, Liu (Jin, Liu.) | Du, Xiuli (Du, Xiuli.)

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摘要:

A three-dimensional mesoscale numerical analytical model for studying CFRP reinforced RC beams was developed using the ABAQUS finite element numerical calculation platform. The heterogeneity of concrete material and the interaction between rebar/CFRP and concrete was considered. Different strain rates were studied to explore the size effect behaviors and shear failure. The conclusions show that: 1) with the increase of the strain rate, the shear bearing capacity increases, and with the increase of the beam height, the nominal shear strength decreases; 2) increased strain rate can result in RC beams reinforced with CFRP having greater nominal shear strength, while it can also result in diminished size effect behaviors; 3) the nominal shear strength was predicted, a formula that considers both the size effect and the strain rate effect was proposed. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd 2024.

关键词:

Shear flow ABAQUS Strain rate Size determination Concrete beams and girders Reinforcement

作者机构:

  • [ 1 ] [Li, Dong]Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Yang, Bo]Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Zhang, Jiangxing]Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Jin, Liu]Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Du, Xiuli]Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing; 100124, China

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ISSN: 2366-2557

年份: 2024

卷: 328 LNCE

页码: 196-203

语种: 英文

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