Adaptive Behavior of Double Concave Friction Pendulum Bearing and its Advantages over Friction Pendulum Systems
Adaptive Behavior of Double Concave Friction Pendulum Bearing and its Advantages over Friction Pendulum Systems
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发表时间：
2010-04
期刊：
影响因子：
1.4
通讯作者：
M. Malekzadeh;T. Taghikhani
中科院分区：
文献类型：
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作者：
M. Malekzadeh;T. Taghikhani
双凹摩擦摆（DCFP）轴承是新一代的摩擦隔离器，它包含两个独立的凹滑动面，具有不同的性能。与摩擦摆系统（FPS）相比，提高性能是DCFP最重要的优点之一。本文比较了采用DCFP隔震支座的结构与采用FPS隔震支座的结构的抗震性能。据此，在三种不同危险水平（SLE、DBE和MCE）的地震动集合下进行了一系列非线性动力学分析。研究了DCFP的自适应行为及其在二次系统保护中的优势。比较了两种隔震体系顶板加速度峰值、层间位移峰值和隔震位移峰值的超越曲线概率。结果支持了DCFP隔离系统的优势。
Double Concave Friction Pendulum (DCFP) bearing is a new generation of friction isolator that contains two separate concave sliding surfaces with di erent properties. Accommodating enhanced performance, compared to the Friction Pendulum System (FPS), is one of the most important bene ts of DCFP. Herein, the seismic behavior of structures isolated by DCFP bearings is compared with the response of the same buildings using the FPS bearing. Accordingly, a series of nonlinear dynamic analyses are carried out under ensembles of ground motions at three di erent hazard levels (SLE, DBE and MCE). Moreover, the adaptive behavior of DCFP and its advantages in protecting secondary systems is investigated. The probability of exceedance curves of peak roof acceleration, peak inter-story drift and peak isolator displacement is compared for two types of isolation system. The result supports the advantages of DCFP isolation systems.