构造柱对蒸压粉煤灰多孔砖砌体抗震性能影响的试验研究

发布时间：2018-06-16 14:03

本文选题：蒸压粉煤灰多孔砖 + 构造柱　；参考：《地震工程与工程振动》2016年05期

【摘要】：为了深入了解构造柱对蒸压粉煤灰多孔砖墙体受力性能的影响,通过对6片蒸压粉煤灰多孔砖墙与1片烧结多孔砖对比墙的低周反复荷载试验,系统研究了蒸压粉煤灰多孔砖墙体的破坏特征、承载能力、耗能能力、滞回特征及刚度退化等抗震性能。试验结果表明:构造柱对墙体的抗震性能产生显著影响,构造柱墙体耗能能力远大于无构造柱墙体,三构造柱墙体耗能能力大于两构造柱墙体;竖向压力对墙体的水平承载力影响较大,随着竖向压应力加大,墙体的抗剪强度提高,但破坏脆性加大。基于试验结果,提出了地震作用下带构造柱的蒸压粉煤灰多孔砖墙体的骨架曲线和抗剪承载能力计算方法,计算值与试验结果吻合较好。
[Abstract]:In order to understand the effect of the structural column on the mechanical properties of the porous brick wall of the autoclaved fly ash, the failure characteristics, bearing capacity, energy dissipation capacity, hysteretic characteristics and stiffness degradation of the porous brick wall of 6 slices of steamed fly ash brick wall and 1 sintered porous brick wall are systematically studied. The experimental results show that the structural column has a significant influence on the seismic performance of the wall, and the energy dissipation capacity of the structure column wall is far greater than that of the non structural column wall. The energy dissipation capacity of the three structural column wall is greater than the two structural column wall; the vertical pressure has great influence on the horizontal bearing capacity of the wall. With the increase of the vertical pressure stress, the shear strength of the wall is raised. It is high, but the brittleness increases. Based on the test results, the skeleton curve and the shear capacity calculation method of the steamed fly ash porous brick wall with a structural column are proposed. The calculated values are in good agreement with the experimental results.
【作者单位】：中南林业科技大学土木工程与力学学院;湖南省建筑工程集团设计研究院;湖南城市学院土木工程学院;
【基金】：国家自然科学基金项目(51308556)~~
【分类号】：TU364;TU352.11

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