阻尼填充墙SBS层性能试验研究

发布时间：2018-06-11 13:51

本文选题：阻尼填充墙 + SBS层　；参考：《地震工程与工程振动》2014年06期

【摘要】：对阻尼填充墙的SBS层进行水平往复加载试验,研究了竖向压应力、加载频率和卷材层数对SBS层力学性能的影响及其耐疲劳性能。试验结果表明:(1)SBS层工作性能稳定,滞回曲线饱满对称,SBS层产生黏滞滑移耗能,耗能性能良好。(2)竖向压应力、加载频率和卷材层数的变化对SBS层力学性能具有一定的影响;随着竖向压应力的增大,SBS层的早期抗剪切刚度显著增大,耗能性能小幅提升;SBS层具有速度相关性,加载频率增大时,SBS层的耗能性能明显提高;增大卷材层数会致使SBS层的剪切刚度和耗能效果降低。(3)疲劳试验中,SBS层的剪切刚度和耗能量有一定的衰减,但等效黏滞阻尼系数有所上升,滞回环形状基本不变,SBS层仍可有效耗能,耐疲劳性能良好。
[Abstract]:The horizontal reciprocating loading test is carried out on the SBS layer of the damped wall. The influence of the vertical compressive stress, the loading frequency and the number of rolls on the mechanical properties of the SBS layer and the fatigue resistance are studied. The test results show that (1) the working performance of the SBS layer is stable, the hysteresis curve is full symmetry, the SBS layer produces viscous dissipation and energy dissipation, and the energy dissipation performance is good. (2) vertical compression stress The force, the loading frequency and the number of coil layers have a certain influence on the mechanical properties of the SBS layer. With the increase of the vertical compressive stress, the early shear stiffness of the SBS layer is significantly increased, the energy dissipation performance is slightly enhanced, the SBS layer has a velocity correlation, and the energy dissipation performance of the SBS layer increases obviously when the loading frequency increases; and the increase of the number of rolls will lead to the SBS layer. The shear stiffness and energy dissipation effect are reduced. (3) in the fatigue test, the shear stiffness and energy consumption of the SBS layer have a certain attenuation, but the equivalent viscous damping coefficient rises, the hysteresis loop shape is basically unchanged, the SBS layer still can effectively energy consumption, and the fatigue resistance performance is good.
【作者单位】：广州大学土木工程学院;
【基金】：国家自然科学基金项目(51178128) 广东省自然科学基金团队项目(8351009101000001) 广州市属高校“羊城学者”首席科学家项目(10A0265) 广州市教育系统创新学术团队项目(穗科教[2009]11号)
【分类号】：TU317

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