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首页> 外文期刊>Bulletin of earthquake engineering >Experimental and numerical study of the spring-asphalt 3D isolation structures under multi-component ground motions
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Experimental and numerical study of the spring-asphalt 3D isolation structures under multi-component ground motions

机译：多组分地面运动下春天沥青3D隔离结构的实验性和数值研究

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摘要

A low-cost spring-asphalt bearing for the 3D seismic base isolation of low-rise residences is presented in this paper. Its dynamic response under horizontal, vertical and rocking ground motions is studied by shaking table test. Different types of excitations such as horizontal excitation only, horizontal and vertical excitation, horizontal, vertical and rocking excitations with different peak ground accelerations are input. A numerical model is developed to further study the dynamic characteristics of buildings with spring-asphalt 3D isolation bearing under multi component ground motions. Frequency domain and time domain analysis are conducted to research dynamic responses of the model. The function of asphalt is also researched by contrast experiments. Research results show that the 3D isolation bearing could efficiently reduce horizontal and vertical acceleration response of upper structures. Furthermore, asphalt makes the structure possess good energy dissipation capability. In addition, the asphalt could provide considerable damping and reduce the displacement while does not add so much stiffness.
机译：本文介绍了一种低成本的春季沥青轴承用于低层居住的3D地震基地隔离。通过振动台式测试，研究了水平，垂直和摇摆地板运动下的动态响应。输入不同类型的激励，例如水平激发，水平和垂直激励，水平，垂直和具有不同峰接地加速度的摇摆激励。开发了一种数值模型，进一步研究了多组分地面运动下春天沥青3D隔离轴承建筑物的动态特性。频域和时域分析进行了研究模型的动态响应。沥青的功能也通过对比实验进行了研究。研究结果表明，3D隔离轴承可以有效地降低上部结构的水平和垂直加速度响应。此外，沥青使得结构具有良好的能量耗散能力。此外，沥青可以提供相当大的阻尼，减少位移，同时不会增加如此多的刚度。

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