环形低碳钢滞后阻尼器的研究

Study on Ringlike Steel Hysteretic Dampers

针对框架—核心筒体结构体系的特点和低碳钢的优良性能，在吸取国内外学者有关研究成果的基础上，开发研制了一种新型的耗能减震器—环形低碳钢滞后阻尼器。这种减震器的优点是耗能区域明确，可安装在外框架和筒体结构之间的施工缝中。试验结果表明，该环形减震器性能稳定，耗能效果较好，且变形主要集中在预设的工作区域内，基本达到了原设计要求。最后，提出了环形减震器的恢复力计算模型。

A new type of ringlike hysteretic energy absorber is developed. They can be installed in the construction joints between the core tube and each floor slab of the frame. Using the specially designed part, the energy absorbers have a large energy dissipating capacities even after some cycles. The hysteresis loops of energy absorbers are found stable and with bigger loop area. The hysteresis modeI can express to the characteristics of energy absorbers.