足尺度钢构架加装复摆隔震器之地震模拟振动台试验
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摘要
隔震系统的研发与运用在近年来已渐渐成为地震工程中的热门领域。在本研究中,提出了名为复摆隔震器的新型隔震系统,此隔震系统在构造上具有两个滑动曲面,因此隔震周期与位移容量更优于ZAYAS博士所发明的传统摩擦单摆隔震器者。除此之外,本研究亦提出了具有耐磨性及耐压性的新型铁氟龙披镀材料,由组件测试可知,新型铁氟龙披镀材料除了具有高度非线性力学行为外,其耐磨性及耐压性皆可获得相当程度之保证。为了验证本隔震器之防震效益,本研究亦于台湾地震工程研究中心进行三层楼钢构架加装复摆隔震器之振动台试验,试验结果显示除了远断层地震波之外,本隔震器在近断层地震波以及软弱地盘地震作用下皆可以发挥良好的防震效果。
In this study,a new base isolator called as Multiple Friction Pendulum System(MFPS) has been proposed.The lubricant material,articulated slider and doubled concave sliding interfaces of MFPS are quite different from that proposed by V.Zayas in 1987.The results from component tests of Teflon composite show that the proposed material possesses not only highly nonlinear behavior but also excellent durability.In order to verify the efficiency of the proposed isolator,the 3- dimensional shaking table tests of a full scale steel structure were performed at National Center for Research on Earthquake Engineering in Taiwan.It is revealed from the experimental results that the MFPS isolators can mitigate the seismic response of the superstructure under near field ground motions and earthquakes with long predominant periods.
引文
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