组合深梁作为一种新型的耗能构件,可以实现宽范围的刚度渐变调幅。通过两片跨高比分别为2.0和1.0的组合深梁低周反复荷载试验,研究了其破坏过程和破坏机理,得到了深梁的滞回曲线、承载力及承载力退化系数、延性系数和能量耗散系数。研究结果表明:组合深梁随着跨高比从2.0减小到1.0,承载力增加了190%;采用混凝土板限制钢板的平面外屈曲,可以充分利用钢材的性能;钢-混凝土组合深梁是一种理想的水平抗侧力构件。 The combination of deep beams as a new type of energy-consuming components, can achieve a wide range of stiffness gradual amplitude modulation. The failure process and failure mechanism of deep deep-rock composite beams with two span ratios of 2.0 and 1.0, respectively, were studied. The hysteretic curves, bearing capacity and bearing capacity degradation coefficient, ductility coefficient and Energy Dissipation Factor. The results show that the bearing capacity increases by 190% as the span ratio decreases from 2.0 to 1.0 and the out-of-plane buckling of the steel plate can make full use of the properties of the steel. The deep steel-concrete composite beams An ideal horizontal anti-lateral force member.