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采用ABAQUS软件,建立4个带钢板耗能键的钢管混凝土排柱组合剪力墙模型,在验证建模方法可靠的基础上,对不同试件进行低周反复荷载下滞回特性、耗能能力、骨架曲线、延性、强度退化及刚度退化的对比研究,得出试件骨架曲线、滞回曲线,计算出承载力和位移延性系数,并分析剪跨比、钢管套箍率、材料强度等级三个不同参数对组合剪力墙的影响。结果表明,该组合剪力墙的承载力高、耗能能力强、后期刚度稳定、抗震性能良好;组合结构的承载力、耗能能力均随钢板数量增加而提高,但延性下降,外包混凝土能够大大提高结构的承载力和耗能能力;随剪跨比的增大,组合剪力墙承载力下降,但变形能力增强;随钢管套箍率增大,组合剪力墙的承载力和延性系数比增大,钢管套箍率宜取1.01;钢管内部的混凝土对整体结构强度影响的效果不明显。
Using ABAQUS software, four steel-reinforced concrete column-shear wall model with energy dissipation key were established. Based on the reliable method of modeling, the hysteresis characteristics and energy dissipation capacity , The skeleton curve, the ductility, the strength degradation and the rigidity degeneration, the skeleton curve and hysteretic curve of the specimen were obtained, and the bearing capacity and displacement ductility coefficient were calculated. And the shear span ratio, the steel pipe ferrule ratio, the material strength grade three Influence of Different Parameters on Combined Shear Wall. The results show that the combined shear wall has high bearing capacity, strong energy dissipation capacity, stable stiffness in the late stage and good seismic performance. The bearing capacity and energy dissipation capacity of the composite structure increase with the increase of the number of steel plates, but the ductility decreases and the outsourced concrete can With the increase of shear span ratio, the bearing capacity of combined shear wall decreases, but the deformation capacity increases. With the increase of steel casing hoop ratio, the bearing capacity and ductility coefficient of composite shear wall Than the increase of steel ferrule rate should take 1.01; concrete internal structure of steel strength of the overall effect is not obvious.