收录:
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:
通讯作者信息:
电子邮件地址: