基于ABAQUS的粘钢加固钢筋混凝土柱的研究

Study of the Steel-Bonded Reinforced Concrete Column Based on ABAQUS

通过有限元软件ABAQUS对7根钢筋混凝土柱(其中6根用粘钢加固)在水平反复荷载作用下的模拟研究,比较分析了粘钢加固前后钢筋混凝土柱的滞回曲线、骨架曲线和刚度退化曲线等。结果表明:粘钢加固可以有效地提高柱的承载力、延性和变形能力,减缓刚度退化,改善钢筋混凝土柱的抗震性能;粘钢加固损伤钢筋混凝土柱的抗震性能与损伤程度、轴压比和加固钢板厚度等因素有关。

Based on the finite element software ABAQUS,a simulation study is conducted on seven reinforced concrete columns（among which six of them is steel-bonded reinforcement）under horizontal cyclic loading by comparing hysteretic curve,skeleton curve and stiffness degradation curve etc.of reinforced concrete column before and after steel-bonded reinforcement.The result indicates that steel-bonded reinforcement can effectively enhance the bearing capacity,ductility and deformability of columns,slow down the stiffness degradation,improve the anti-seismic property of reinforced concrete columns.Besides,the damage caused by steel-bonded reinforcement on anti-seismic property of reinforced concrete columns relates to damage injury,axial compression ratio,the thickness of reinforced steel plate and other factors.