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Seismic response of steel braced frames equipped with shape memory alloy-based hybrid devices

机译:装有基于形状记忆合金的混合装置的钢支撑框架的地震响应

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摘要

This paper highlights the role of innovative vibration control system based on two promising properties in a parallel configuration. Hybrid device consists of two main components; recentering wires of shape memory alloy (SMA) and steel pipe section as an energy dissipater element. This approach concentrates damage in the steel pipe and prevents the main structural members from yielding. By regulation of the main adjustable design parameter, an optimum performance of the device is obtained. The effectiveness of the device in passive control of structures is evaluated through nonlinear time history analyses of a five-story steel frame with and without the hybrid device. Comparing the results proves that the hybrid device has a considerable potential to mitigate the residual drift ratio, peak absolute acceleration and peak interstory drift of the structure.
机译:本文重点介绍了创新的振动控制系统的作用,该系统基于并行配置中的两个有希望的特性。混合设备包含两个主要组件;形状记忆合金(SMA)和钢管截面的热缩线作为消能元件。这种方法将损坏集中在钢管上,并防止主要结构构件屈服。通过调节主要的可调节设计参数,可以获得设备的最佳性能。通过对带有和不带有混合动力装置的五层钢框架的非线性时程分析,评估了该装置在被动控制结构中的有效性。比较结果证明,该混合动力装置具有很大的潜力,可以减轻结构的残余漂移率,峰值绝对加速度和峰值层间漂移。

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