摘   要：对3根截面尺寸与纵向受力钢筋配置相同但两端箍筋配置不同的钢筋混凝土柱进行地震模拟试验，研究了钢筋混凝土柱在地震作用下，柱端端部或柱端腹部箍筋进行加密对柱水平承载力、柱端纵向受力钢筋变形及裂缝产生的影响。试验结果表明：对柱端端部箍筋加密，可以提高钢筋混凝土柱的水平承载力；在转角?覫=1/33 范围内反复荷载作用下，对柱端端部箍筋加密，可以提高钢筋混凝土柱的整体强度；在转角=1/50范围内，钢筋混凝土柱在持续反复荷载作用下，对钢筋混凝土柱端某一部位的箍筋加密，可以减小反复荷载作用对该部位的纵向受力钢筋变形；对钢筋混凝土柱端箍筋加密，对混凝土柱受压区的裂缝产生没有太大影响，但可以减小受拉区箍筋加密区域的裂缝生长。

Abstract: To study the effect on the longitudinal reinforcement deformation of column end, and the crack distribution and column horizontal bearing capacity by the stirrup confining method in the region of column end or its middle part, 3 reinforced concrete column specimens, which have the same section size and longitudinal reinforcement ratio but with the different stirrups configuration, were tested for earthquake simulation. The research results show that stirrup confining method at the column end can improve the column horizontal bearing capacity, and also can improve the overall bearing capacity of column under the circling loading at the range around angle =1/33, and can decrease the longitudinal reinforcement deformation when stirrup confining focus on a particular column end at the range around angle ?覫=1/50; it has no obvious effect on the crack generation in the concrete column compression zone, but can restrict the crack growth in the stirrup confining tension regions.