摘要
以提高SMA利用率为目的,设计了几种不同形式的SMA橡胶支座并进行了耗能试验。研究了水平位移幅值、水平加载频率以及竖向荷载等因素对SMA橡胶支座水平刚度、耗能量以及阻尼等基本力学性能的影响,结果表明,新型的SMA橡胶支座均可有效提高橡胶支座的耗能性能和回复能力,并为SMA橡胶支座优化设计提供了依据。
As the aim of improving the utilization ratio of SMAs in SMA-rubber seismic isolation bearings, several different SMA-rubber seismic isolation bearings were designed, and energy dissipation experiments were done. The factors which affect the level stiffness, energy dissipation and equivalent damping ratio of SMArubber seismic isolation bearings including level displacement amplitude, level loading frequency and vertical load were studied. Result showed that the new SMA-rubber seismic isolation bearings have better hysteresis and energy dissipation capabilities. It provided the base to optimize the SMA-rubber seismic isolation bearings.
出处
《中国工程科学》
2005年第12期61-68,共8页
Strategic Study of CAE
基金
国家自然科学基金资助项目(50378006)
关键词
形状记忆合金
隔震支座
初始刚度
滞回耗能
等效阻尼比
shape memory alloy
seismic isolation bearings
initial stiffness
hysteresis energy dissipation
equivalent damping ratio
