不同构造内置钢板-混凝土组合剪力墙轴压性能试验研究

发布时间：2018-03-26 20:18

本文选题：组合剪力墙　切入点：内置钢板　出处：《建筑结构学报》2016年05期

【摘要】：为研究在高轴压比下内置钢板-混凝土组合剪力墙中钢板与混凝土墙体的协同工作性能,以北京中国尊大厦核心筒剪力墙为原型,进行了4个1/4缩尺的内置钢板-混凝土组合剪力墙轴压性能试验。4个试件的几何尺寸相同,区别在于钢板与混凝土连接构造不同。采用单向重复加载方法,分析了各试件的承载力、刚度退化、应力分布、变形能力等,进行了轴压承载力计算。结果表明:各试件达到极限承载能力时,钢板轴力分担比率在25%~32%之间,内置钢板的抗压能力得到发挥;与无拉结钢筋、无栓钉的试件相比,钢板中部设置长栓钉的试件承载力提高23.6%,轴向变形提高22.6%,刚度退化减缓17.42%,钢板与混凝土协同工作性能好;采用强度叠加理论进行内置钢板-混凝土组合剪力墙轴压承载力计算,试验结果与计算值吻合良好。
[Abstract]:In order to study the synergistic performance of steel plate and concrete wall in the composite shear wall with high axial compression ratio, the core tube shear wall of Beijing China Zun Building was used as the prototype. The axial compression behavior tests of four steel plate concrete composite shear walls with four 1 / 4 scale were carried out. The four specimens have the same geometric size, except that the steel plate and concrete connection structure are different, and the unidirectional repeated loading method is used. The bearing capacity, stiffness degradation, stress distribution and deformation capacity of each specimen are analyzed, and the axial compression capacity is calculated. The results show that when each specimen reaches the ultimate bearing capacity, the axial force sharing ratio of the steel plate is between 25% and 32%. The bearing capacity of the specimen with long pin in the middle of the steel plate is increased by 23.6m, the axial deformation is increased by 22.6%, the stiffness degradation is reduced by 17.42%, and the cooperative performance of steel plate and concrete is improved. The strength superposition theory is used to calculate the axial compression capacity of the composite shear wall with steel plate and concrete, and the experimental results are in good agreement with the calculated values.
【作者单位】：北京工业大学建筑工程学院;唐山学院土木工程学院;
【基金】：国家自然科学基金项目(51478020)
【分类号】：TU398.9

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