(华东建筑设计研究院有限公司  上海 200002)
［提要］  “斜交网格” 体系由双向交叉连续环绕建筑外表面的斜杆构成，替代了传统上的垂直柱与斜向支撑的组合，同时承受结构的垂直和水平荷载。斜交网格的刚度较大，能承受很大的水平荷载，因而内框架可能设计成无支撑抗弯刚架，为建筑内部的布置提供很大的自由度。通过静力、弹性反应谱和静力弹塑性等分析方法，对构成这一结构的基本元素——平面斜交网格、斜交网格筒体结构和斜交网格外筒与各种内核结构的组合体系的基本静动力特性进行了分析，并与传统的结构体系进行了结果对比，归纳出这一结构的基本受力性能，可为此类结构的深入研究和设计实践提供参考。
［关键词］  高层斜交网格结构  管结构  静力弹塑性分析
Performance Research on Highrise Diagonal Frame Structure/Zhou Jian, Wang Dasui(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)
Abstract:A new structural system for highrise building named diagonal frame is studied. The most significant characteristic of this system is the performance of its diagonal components arranged around the building, which act both as columns and bracings. The lateral stiffness provided by the these diagonal components leaves more freedoms for the design of the core structure. Static analysis, spectrum analysis and static elasticplastic analysis are used to explore the fundamental characteristics of this system from its basic element—2D diagonal frame to individual spacial diagonal frame tube, and finally the composite system of spacial diagonal frame tube with different types of core structures. Comparison and contrast are made with conventional structural systems in order to identify its special performances.
Keywords:highrise building diagonal frame; tube structure; static elasticplastic analysis