中文摘要：

通过对6个高温后带栓钉连接件型钢混凝土短柱反复加载试验和6个高温后试件的单调加载对比试验,研究高温后反复荷载下带栓钉连接件型钢混凝土短柱的破坏形态、荷载-滑移特性、界面剪切承载力等。研究结果表明：带栓钉连接件型钢混凝土试件在反复荷载下的破坏形态与单调荷载下大致相同,破坏以栓钉外侧混凝土劈裂为主。试件的滑移刚度和界面剪切承载力随着升温时曾经经历最高温度的增加及最高温度持续时间的增长而下降。翼缘布置栓钉试件的滑移刚度和界面剪切承载力高于相同条件下腹板布置栓钉试件的滑移刚度和剪切承载力。与单调加载相比,反复荷载下试件界面剪切承载力下降。

英文摘要：

Six steel reinforced concrete （SRC） short columns with stud connectors after high temperatures under cyclic reversed loading and six comparative specimens under monotony loading were tested to study their failure pattern, load-slip characteristics and shear force transmission capacity. Test results showed that the typical failure mode of SRC specimens with stud connectors under cyclic reversed loading was concrete split failure, which was basically the same to those under monotony loading. Bond stiffness and shear transmission capacity of specimens decreased with the increase of the maximum temperature or the duration of the maximum temperature. Specimens with stud connectors on the flanges had better bond stiffness and shear transmission capacity than those with stud connectors on the webs. Compared with specimens under monotony loading, the specimens under cyclic reversed loading had lower shear force transmission capacity.