高阻尼混凝土带钢板暗支撑双肢剪力墙抗震性能试验研究

发布时间：2018-07-02 18:17

本文选题：高阻尼混凝土 + 剪力墙　；参考：《工程力学》2017年01期

【摘要】：该文完成了2个四层1∶4缩尺高阻尼混凝土带钢板暗支撑双肢剪力墙低周反复加载试验,详细分析了该剪力墙结构的承载力、延性、耗能、破坏机制和破坏特征等,并与高阻尼混凝土带混合暗支撑双肢剪力墙进行了对比分析。利用有限元分析软件ABAQUS对试验模型进行了模拟,并分析了双肢剪力墙相对含钢率对高阻尼混凝土带钢板暗支撑双肢剪力墙承载力的影响。结果表明:与高阻尼混凝土带混合暗支撑相比,带钢板暗支撑的高阻尼混凝土双肢剪力极限承载力和耗能能力均有一定程度的提高,剪力墙连梁剪跨比越小,高阻尼混凝土剪力墙的抗震性能越好,当墙肢及连梁含钢率分别在2.5%和3%以下时,墙肢及连梁含钢率对双肢剪力墙的极限承载力有较大影响。
[Abstract]:In this paper, the low cycle repeated loading tests of two four-story 1:4 scale high damping concrete steel plate concealed braced shear walls are completed, and the bearing capacity, ductility, energy consumption, failure mechanism and failure characteristics of the shear wall structure are analyzed in detail. The results are compared with those of high damping concrete double-leg shear wall with mixed underbraced concrete. The finite element analysis software Abaqus is used to simulate the test model, and the influence of the relative steel content of the two-leg shear wall on the bearing capacity of the double-braced shear wall with steel plate with high damping concrete is analyzed. The results show that the ultimate shear capacity and energy dissipation capacity of high damping concrete with steel plate are improved to some extent, and the shear span ratio of shear wall to beam is smaller than that of high damping concrete with mixed dark bracing. The better the seismic performance of high damping concrete shear wall is, when the steel ratio of the wall limb and the connecting beam is below 2.5% and 3%, respectively, the steel ratio of the wall limb and the connected beam has a great influence on the ultimate bearing capacity of the two-leg shear wall.
【作者单位】：湖南大学土木工程学院;
【基金】：国家自然科学基金项目(50978091,51278181) 教育部博士点基金项目(20120161110022)
【分类号】：TU973.16;TU973.31

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