【摘要】 对3榀中心支撑框架进行了滞回性能研究,其中2榀框架的支撑部分填充了泡沫铝材料,主要考察支撑填充泡沫铝后对框架整体滞回性能的影响。通过对试验所得的P-Δ滞回曲线和骨架曲线进行分析,表明:支撑部分填充泡沫铝后,框架整体承载能力提高,支撑的屈曲破坏滞后甚至不出现屈曲,滞回曲线饱满,没有发生明显的捏缩现象。本文研究的框架具有良好的滞回性能和耗能能力。更多还原

【Abstract】 Three centrically braced frames filled with foamed aluminum subjected to reversed cyclic load are tested in the paper with the purpose of researching their hysteresis behavior.By analyzing the P-Δ curves and the framework curves gaining from the tests,we can conclude that the hysteresis curves are plump in shapes,and have no apparent pinch phenomenon.Also,the integral bearing capacity of the frames is rising.The results show that the centrically braced frames filled with foamed aluminum have better hysteresis behavior and more extraordinary dissipative capability.更多还原