按照GB 50011—2010《建筑抗震设计规范》设计了一个1/3缩尺的两层3×2跨异形柱框架结构模型,并对其角柱进行了突然失效试验,以模拟异形柱在偶然荷载作用下突然失效这一动态过程,研究结构的动力反应、荷载传递路径及受力机制。研究结果表明:角柱失效后,与失效柱相连的跨度较小的框架梁其远端截面为最危险截面;由梁板形成的悬挑受力机制共同抵抗由失效柱在失效前所承担的荷载,结构整体仍处于弹性变形阶段。 According to GB 50011-2010 Code for Design of Seismic Design of Building, a 1/3-scale two-story 3 × 2 cross-shaped column frame structure model was designed and its corner column was suddenly failed to simulate the effect of accidental loading Under the sudden failure of this dynamic process to study the dynamic response of the structure, load transfer path and force mechanism. The results show that: after failure of the corner column, the distal section of the frame beam connected to the failed column is the most dangerous cross section; the suspension cantilever stress mechanism formed by the beam plates jointly resist the load borne by the failure column before failure, The whole is still in the stage of elastic deformation.