摘要
混凝土压弯构件是混凝土结构中重要的受力构件,研究锈蚀钢筋对混凝土构件恢复力性能的影响,是研究服役混凝土结构抗震性能的重要内容.以退化三线形(D-TRI)模型为基础,通过对锈蚀混凝土压弯构件在低周反复加载下试验数据的统计分析,提出了确定锈蚀钢筋混凝土压弯构件恢复力模型中关键点的方法,分析了锈蚀构件的主筋锈蚀率与屈服剪力和屈服位移、极限剪力和极限位移、破坏剪力和破坏位移同完好构件各相应值之间的对应关系,初步建立了锈蚀钢筋混凝土压弯构件的恢复力模型的计算公式,给出了模型参数与钢筋锈蚀量的计算关系。
As R.C. members with flexure and compression is very important in R.C. structures, the research on the effects which reinforcement corrosion has on restoring characteristic in R.C. with flexure and compression is also very important in the researches on seismic performance of existing R.C. structures. Based on the statistic analyses with the test data of R.C. corroded members, the flexural and compressive axial loads are put to experiments under repeated horizontal loading. The parameter of the three-line restoring model was given, and the relationship between the parameter of the three-line restoring model and the bars' corroded quantum was presented. As a result of this, the basic theory of repairs of seismic damage of existing R.C. structures, and the evaluating of existing members under earthquake was acquired.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2005年第2期155-159,共5页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
国家自然科学基金资助项目 (5 0 0 780 44 )
关键词
钢筋锈蚀
服役混凝土压弯构件
恢复力模型
抗震能力
reinforcement corrosion
existing R.C. members
force-restoring model
seismic performance
