摘　要：斜交网格筒新型结构体系具有较大的抗侧刚度，为建造高层、超高层结构提供了有利条件，目前已在国内外有多例成功实践，但相关抗震性能研究还很少。采用Perform-3D程序对典型钢管混凝土斜交网格筒-钢筋混凝土内筒结构进行了静力弹塑性分析。总结了体系塑性发展过程及构件屈服顺序，给出了斜交网格筒屈服路径，并从斜交网格筒作用力的变化阐述了内外筒间内力重分配的原因，明确了内外筒内力分配特点。基于内外筒抗侧刚度的发展过程，探讨了结构抗侧刚度退化的主要原因。

Abstract: Diagrid tube structures have advantages on constructing high-rise buildings for their great rigidity and are built in and aboard, however their seismic behavior researches are limited. Models of concrete filled steel tube diagrid tube-concrete core tube structure were analyzed by Modal Pushover method using Perform-3D program. The structure plastic development process and the component yield order were summarized. The diagrid tube components yield path was researched and the reasons of force redistributions between inner and outer tubes were explained by analyzing the development of diagrid tube forces. The reason for structure lateral stiffness degradation was discussed based on the development process of diagrid and core tube lateral stiffness.