摘要
基于已有往复荷载下未锈蚀钢筋混凝土构件的粘结滑移模型,考虑了钢筋锈蚀的影响,从细观的角度对粘结滑移外包线、粘结强度衰减系数、摩擦粘结强度衰减系数、反向粘结强度以及残余粘结强度和其所对应的滑移值进行了理论上的推导和修正,提出了低周往复荷载下考虑循环劣化的锈蚀钢筋混凝土构件的粘结滑移模型,将理论所得的数据和已有实验数据进行对比,结果吻合较好.研究结果对考虑钢筋锈蚀条件下混凝土构件的抗震性能有参考价值.
Based on published bond-slip model of reinforced concrete member under low frequency reversed loading,a new one with corroded reinforcement was established.The new model corrected some relative parameters theoretically in the mesoscale,such as cyclic bond-slip envelope,adhesive stress factor,frictional stress factor,reversed stress,residual stress and corresponding slip value.Comparing with the existing test results,it shows that the new model is viable in practice.The obtained results are very significant for evaluation of aseismatic behavior of corroded reinforcement elements.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2012年第10期1581-1586,1593,共7页
Journal of Shanghai Jiaotong University
基金
国家重点基础研究发展计划(973)项目(2002CB412709)
关键词
锈蚀钢筋混凝土
往复荷载
粘结滑移
劣化模型
抗震性能
corroded reinforcement concrete
reversed cyclic loading
bond-slip
deteriorated model
aseismatic behavior
