【摘要】 国内外学者对碳纤维约束混凝土柱的抗震性能进行了较多研究,但对碳纤维约束高强混凝土圆柱的抗震性能研究相对较少,尤其对损伤后的碳纤维约束高强混凝土圆柱的抗震性能研究更少。对3根碳纤维约束高强混凝土圆柱先进行伪静力试验模拟损伤,加载到纵筋受拉屈服后卸载,再次进行伪静力试验,与3根未损伤碳纤维约束高强混凝土圆柱的抗震性能进行对比,通过对损伤与未损伤模型柱的滞回曲线、骨架曲线、水平承载力、极限位移角等参数的分析比较,考察碳纤维约束高强混凝土柱的剩余抗震性能。更多还原

【Abstract】 Many researches on seismic behavior of reinforced concrete column with carbon fiber polymer have been done at home and abroad.However,little study on seismic performance of high strength concrete columns confined with CFRP has been carried on,especially,that of damaged high strength concrete columns confined with CFRP.Six specimens of high strength concrete columns confined with CFRP were studied through pseudo-static test.Three of them were subjected to controlled deterioration under cyclic loading first until yielding of the reinforcement.After damaged,the three ones were tested with the other three undamaged specimens.At last,Residual seismic performance of high strength concrete columns confined with CFRP were studied by comparing the damaged specimens with undamaged ones from the hysteretic curve,skeleton curve,horizontal bearing capacity and ultimate displacement angle.更多还原