部分外包组合PEC柱强、弱轴滞回性能破坏模式研究分析

摘要

通过研究部分外包组合PEC柱在低轴循环荷载试验下，按强、弱轴加栽的2种布置方式的不同破坏模式及其特点。结果表明：强轴PEC柱的破坏是以钢板的屈曲破坏来控制，弱轴PEC柱的破坏是以混凝土的压溃破坏来控制。研究进一步丰富了PEC柱研究成果。为PEC柱应用于实际工程提供了一定的依据。%Based on the research achievements of partially encased composite （PEC） column under cyclic loading, the primary aim of this paper is to acquire the differences of failure mode and characteristic according to layout of strong or weak axis. It is showed that the PEC column layout of strong axis is destroyed under the control of local buckling of steel plates, while the PEC column layout of weak axis is destroyed under the control of crushing and spalling of concrete. The study provides experimental basis for engineering of the PEC columns.