中文摘要：

为了研究型钢髙强混凝土短柱配置矩形螺旋箍筋后的轴压性能退化规律,设计6个试件进行试验,分析混凝土强度、箍筋间距和配箍形式对试件变形性能、耗能能力、刚度和损伤的影响.研究表明：与配普通箍筋试件相比,配螺旋箍筋试件的初始刚度大,损伤退化曲线出现拐点的时刻提前,但过后损伤发展缓慢,延性和耗能能力相差不大;随着混凝土强度的提髙,配螺旋箍筋试件的延性和耗能能力逐渐降低,损伤累积加快;随着体积配箍率的增加,配螺旋箍筋试件的延性和耗能能力逐渐提髙,初始刚度增大,损伤累积变慢.

英文摘要：

In order to research the performance degradation of steel reinforced high-strength concrete （ SRHC） short columns confined by square spiral stirrups, six specimens were designed for axial compression loading test considering the parameters of concrete strength,stirrup ratio and stirrup form,and influences of the parameters on the deformation,energy dissipation ,stiffness and damage of the specimens were analyzed. Test results indicate that the elastic stiffness of the SRHC specimen with square spiral stirrups is larger than that of the SRHC specimen with normal stirrups. The damage of SRHC specimens with square spiral stirrups accumulated more s low ly ,and the stirrup form has little influence on the energy dissipation and ductility. With the increase of concrete strength,the energy dissipation and the ductility of SRHC specimens become wo rse,moreover,the damage accumulated faster. With the increase of stirrup ratio, the energy dis s ip ation,ductility and elastic stiffness of SRHC specimens are improved,and the damage accumulated more slowly.