Study of Seismic Isolation Design Using Rhombus Link Structure
Study of Seismic Isolation Design Using Rhombus Link Structure
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菱形连杆结构隔震设计研究
DOI：
10.1299/kikaic.79.1673
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Akinori Tomoda
中科院分区：
文献类型：
--
作者：
Kazuki Sato;Tetsuya Watanabe;Akinori Tomoda
本文研究了一种具有非线性特性的竖向地震振动隔震体系。隔震系统由菱形杆件、水平螺旋弹簧和竖向螺旋弹簧组成。系统的恢复力可以通过几何计算得到。本文提出了由隔震体系的恢复力特性计算隔震体系自振周期的设计原则。实际制作了具有非线性特性的隔震器试验模型，通过静载试验测量了其恢复力特性。利用振动台测试了隔震装置的频率响应函数。从这些实验结果，它表明，地震隔离装置的特性可以准确地估计从所提出的设计原则。
This paper deals with a seismic isolation system having nonlinear characteristics mechanism for a vertical seismic oscillation. The seismic isolation system consists of a rhombus shape link, horizontal coil springs and vertical coil springs. Restoring force of the system can be calculated by the geometric calculation. This paper proposes a design principle of the system, using that the natural period of the seismic isolation system can be calculated from its restoring force characteristics. An experimental model of the seismic isolator having nonlinear characteristics was actually made, and its restoring force characteristics were measured by static loading test. Frequency response function of the seismic isolation device was measured using shaking equipment. From these experimental results, it was revealed that the characteristics of the seismic isolation device can be accurately estimated from the proposed design principle.