摘要
为研究配置HRB600E钢筋混凝土柱抗震性能,对不同轴压比和配箍率的5个试件进行低周反复加载试验,并通过ABAQUS软件进一步分析混凝土强度及配筋率对试件抗震性能的影响。研究结果表明:配置HRB600E钢筋的混凝土柱承载力高、变形及耗能性能良好;随轴压比增加,试件承载力、初始刚度增大,延性相对降低;随配箍率增大,试件延性和耗能能力增大。建立的ABAQUS有限元模型能较为合理准确的模拟出HRB600E钢筋混凝土柱的受力性能。随混凝土强度提高,各试件承载力相差不大,延性和耗能能力有所增强;随纵筋配筋率增加,试件承载力、延性和耗能能力增强。
To study the seismic performance of concrete columns reinforced with HRB600E steel bars,five specimens with different axial compression ratios and stirrup ratio were tested under the low cyclic load. And the effect of concrete strength and reinforcement ratio were analyzed by ABAQUS software.The results show that the concrete column with HRB600E steel bar has high bearing capacity,good deformation and energy dissipation performance. With the increase of axial compression ratio,the bearing capacity and the initial stiffness of the specimen increase,while the ductility decreases. As the ratio of the stirrup increases,the ductility and energy consumption increase. ABAQUS software can simulate the HRB600E reinforced concrete column reasonably and accurately. As concrete strength increases,the bearing capacity of the specimens has little difference,and the ductility and energy consumption capacity are enhanced. In addition, with the increase of the longitudinal reinforcement ratio, the bearing capacity,ductility and energy consumption of the specimens are enhanced.
引文
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