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首页> 外文期刊>Bulletin of Earthquake Engineering >Development, design and experimental validation of a steel self-centering device (SSCD) for seismic protection of buildings
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Development, design and experimental validation of a steel self-centering device (SSCD) for seismic protection of buildings

机译：用于建筑物抗震保护的钢自定心装置（SSCD）的开发，设计和实验验证

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The paper describes the development of an original steel self-centering device (SSCD) for improving the level of seismic protection of new and pre-existing structures. In particular, the proposed hysteretic device exhibits two technical features essential to protecting structures against the effects of an earthquake: re-centering and recovery of the structure’s original dissipative resources (Dissipative Elements) after a seismic event. The overall mechanical behavior of the hysteretic device was first defined in terms of its main internal components. A refined parametric analysis was then conducted by varying the mechanical properties of the steel elements responsible for seismic energy dissipation; this allowed optimizing the retrofitting/protection capacities of the system. To this end, various grades of steel, used not only in traditional structural engineering applications, but also in automotive engineering and packaging, were selected, and specimens of each subjected to experimental monotonic and cyclic tests to determine the most suitable for our purposes. A full-scale prototype SSCD was finally fabricated and checked through cyclic tests to evaluate its mechanical and dissipative performance.
机译：本文描述了一种原始钢自定心装置（SSCD）的开发，该装置可提高新的和已有结构的抗震能力。尤其是，所提出的磁滞装置具有两项保护结构免受地震影响的必要技术特征：地震事件发生后重新定心和恢复结构的原始耗散资源（耗散元素）。磁滞器件的总体机械性能首先是根据其主要内部组件定义的。然后，通过改变负责地震能量消散的钢构件的机械性能，进行精确的参数分析。这可以优化系统的改造/保护能力。为此，选择了不仅用于传统结构工程应用，而且还用于汽车工程和包装的各种等级的钢，并对每种钢的样本进行了实验单调和循环测试，以确定最适合我们的目的。最终制造出了完整的原型SSCD，并通过循环测试对其进行了评估，以评估其机械性能和耗散性能。

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