摘要
以一种轴向拉压型金属阻尼器为研究对象,介绍了轴向拉压型金属阻尼器的结构构造及其理论计算方法;进行了抗震性能测试,得到了轴向拉压型金属阻尼器的屈服位移、屈服荷载及屈服刚度,并分析了其耗能能力;研究了轴向拉压型金属阻尼器在体外预应力自复位结构中的应用。研究结果表明:轴向拉压型金属阻尼器利用腹板轴向拉压耗能,避免了连接构件的局部损坏;安装方式与黏滞阻尼器相同,安装方便、易于更换;轴向拉压型金属阻尼器具有提供结构附加刚度,控制结构位移,耗能显著的优点。
The constructional detail and theoretical calculation of a kind of axial compression-tension metallic damper were introduced. The yield displacement, yield load and yield stiffness of the axial compression-tension metallic damper were obtained through the quasi-static test, and its energy dissipation capacity was analysed. The application of the damper used in External Prestressing Self-centering Frame （EPSCF） was researched. The results indicate that （1） the axial tension-compression metallic damper dissipates energy through the deformation of its web plates, and the damages occurred on the adjacent components can be avoided; （2） the installation type of this metallic damper is the same as the viscous damper, it can be conveniently installed and easily replaced;（3） the axial compression-tension metallic damper has the advantages of promoting additional stiffness, controlling drifts and dissipating seismic energy.
出处
《振动与冲击》
EI
CSCD
北大核心
2017年第16期141-147,共7页
Journal of Vibration and Shock
基金
国家自然科学基金项目(51678453
51261120377)
关键词
轴向拉压型金属阻尼器
抗震性能
拟静力试验
耗能能力
axial compression-tension metallic damper
seismic performance
quasi-static test
energy dissipation capacity
