SRC框架短柱在低周反复荷载作用下的延性

本文通过对13根内埋工字钢的SRC框架短柱试件的试验研究，讨论了 SRC框架短柱的变形能力。重点讨论了轴压比、配箍率讨其延性的影 响。得出:与钢筋混凝土框架短柱相比，SRC框架短柱的变形能力较 强，特别是在高轴压、低配箍率的情况。最后给出了其极限转角的计算 公式。 

Ductility of Short SRC Columns under Cyclic Lateral Loading

Based on the experimental results of 13 specimens, the ductility of short SRC columns with I steel encased is studied. Special emphasis is put upon the effects of the axial load level ratio and the web reinforcement ratio on ductility. It is concluded that the ductility of the short SRC columns is much higher than that of the short reinforced concrete columns, especially under high axial load and with low web reinforcement ratio. Finally, a formula for predicting the ultimate displacement/ height ratios of the specimens is proposed.