三心圆柱面巨型网格结构静力性能研究

Study on the static behavior of three-centered cylindrical giant grid structure

将传统三心圆柱面网壳与联方型巨型网格结构结合,提出一种三心圆柱面巨型网格结构,对其体型参数进行分析,给出了结构各参数计算公式。根据所得公式计算三心圆柱面巨型网格结构各体型参数,针对结构体型特点,改变参数(落地倾角、结构矢跨比、弦段比例以及支承形式)建立不同模型,并研究结构在静力荷载作用下,内力分布随参数的变化情况,得出了较为经济合理的结构体型,为之后的结构设计提供参考。

Combines the traditional three-centered cylindrical shell with the joint square type giant grid structure, a kind of three-centered cylindrical giant grid structure was proposed, its body parameters was analyzed, and the calculation formula of each parameter of the structure was gave. According to the formula, three-centered cylindrical giant grid structure size parameters were calculated. Based on the characteristics of structure size, parameters(landing angle, rise-span ratio of structure, string section proportion and supporting form) were changed to establish different models, and the internal force distribution of the structure under the action of static load changes with the parameters was researched, and a more economical and reasonable structure shape was obtained, which provides a reference for the subsequent structural design.