STRUCTURAL PERFORMANCE OF SHORT COLUMNS FOR NEWLY DESIGNED REINFORCED CONCRETE BUILDINGS

对新建钢筋混凝土房屋短柱的结构性能进行了研究。主要研究结果如下：（1）随着主筋配筋率的增大，受剪破坏柱的倒塌位移有增大的趋势。这一发现可能表明，柱的剪切破坏模式可以用于结构设计;（2）柱的轴向载荷降低到初始水平以下时，比柱的轴向载荷保持不变，表现出更大的崩溃漂移，随着轴向载荷的下降率越大，崩溃漂移越大。

Structural performance of short columns for newly designed reinforced concrete buildings was studied. The major findings from the study are as follows: (1) collapse drift of shear-failing RC column tends to be large as the main reinforcement ratio increases. This finding may indicate that column with shear failure mode could be used for structural design; and (2) columns for which axial load was decreased below the initial level showed larger collapse drift than columns for which axial load was kept constant, and as the greater the rate of axial load decrease, the larger the collapse drift.