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作者:

Deng, Zong-Cai (Deng, Zong-Cai.) (学者:邓宗才) | Li, Jian-Hui (Li, Jian-Hui.) | Zhang, Yong-Fang (Zhang, Yong-Fang.)

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摘要:

A simple bilinear stress-strain model of fiber-reinforced polymer (FRP) confined concrete was used to analyze the approximate cross-sectional ductility of undamaged circular columns strengthened with hybrid FRP under seismic loads. The effect of reinforcement corrosion on the sectional ductility was considered by the loss of rebar cross-sectional area, the reduction of rebar's mechanical properties and the degradation of interface bonding between rebar and concrete. Then, a simple analytical model was established to estimate the ductility of potential plastic hinge regions. Finally, a non-iterative displacement-based seismic design program for reinforced concrete corroded columns strengthened with hybrid FRP was presented on the basis of the simple analytical model.

关键词:

Analytical models Beams and girders Corrosion Ductility Electrochemical corrosion Fiber reinforced plastics Polymers Reinforced concrete Seismic design Seismology Stress-strain curves

作者机构:

  • [ 1 ] [Deng, Zong-Cai]Key Laboratory of Urban Security and Disaster Engineering (Ministry of Education), Beijing University of Technology, Beijing 100124, China
  • [ 2 ] [Li, Jian-Hui]Key Laboratory of Urban Security and Disaster Engineering (Ministry of Education), Beijing University of Technology, Beijing 100124, China
  • [ 3 ] [Zhang, Yong-Fang]Key Laboratory of Urban Security and Disaster Engineering (Ministry of Education), Beijing University of Technology, Beijing 100124, China

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来源 :

Journal of University of Science and Technology Beijing

ISSN: 1001-053X

年份: 2011

期: 11

卷: 33

页码: 1430-1436

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