CAJ | 학술논문

采用C30混凝土按碳纤维体积掺量2‰进行配合比设计，制作了3个试验试件柱，对其进行水平低周往复加载，分析其在轴压比0.4、0.5、0.6下试件的滞回曲线、骨架曲线及位移延性系数；同时采用ABAQUS软件对碳纤维混凝土柱的滞回性能进行有限元分析，得到碳纤维柱的滞回曲线和应力云图。结果表明，轴压比的变化对试件滞回曲线的饱满程度影响不大，不同轴压比下试件的滞回曲线均比较饱满，没有出现捏拢现象，到达极限承载力后，曲线下降平缓；随着轴压比的增大，试件的极限承载力降低，所对应的极限位移和延性系数均减小。采用ABAQUS软件模拟得到的曲线与试验所得曲线吻合较好。
채용C30혼응토안탄섬유체적참량2‰진행배합비설계，제작료3개시험시건주，대기진행수평저주왕복가재，분석기재축압비0.4、0.5、0.6하시건적체회곡선、골가곡선급위이연성계수；동시채용ABAQUS연건대탄섬유혼응토주적체회성능진행유한원분석，득도탄섬유주적체회곡선화응력운도。결과표명，축압비적변화대시건체회곡선적포만정도영향불대，불동축압비하시건적체회곡선균비교포만，몰유출현날롱현상，도체겁한승재력후，곡선하강평완；수착축압비적증대，시건적겁한승재력강저，소대응적겁한위이화연성계수균감소。채용ABAQUS연건모의득도적곡선여시험소득곡선문합교호。
Three specimens of carbon fiber reinforced concrete columns with C30 concrete strength grade and 2‰carbon fiber are tested to study their hysteresis curve, skeleton curve and displacement ductility coefficient when the axial compressive ratios are 0.4, 0.5 and 0.6. And carbon fiber concrete columns are analyzed by using the finite element soft-ware ABAQUS, the hysteretic curve and stress nephogram of the columns are achieved. The results show that the change of axial compression ratio has little influence on the full extent of the hysteretic curves. The hysteretic curves under dif-ferent axial compression ratios are full without significant pinch phenomenon. When the limit bearing capacity of the columns is reached, the skeleton curve decreases slowly. With the increase of axial load ratio, the ultimate bearing capac-ity and limit displacement decrease. The simulation curve and experimental curve are in good agreement which proved the rationality of simulation.