基于新旧共同规范的主要支撑构件曲形面板结构强度对比分析

Structural Strength Comparative Analysis on Curved Face Plate of Primary Supporting Members between the Old and New Common Structure Rules

为明确共同规范对主要支撑构件曲形面板有效面积计算公式更新后主要支撑构件曲形面板有效系数的变化,通过实例分析规范修改对主要支撑构件曲形面板有效性的影响,认为规范修改对于非对称曲形面板的影响远大于对称曲形面板,可通过设置径向肘板、将非对称曲形面板改为对称曲形面板、改变面板尺度比,使得有效系数最大,可采用细网格进一步分析,进行结构补强与结构重量控制。

The effective area calculation formula of primary supporting member curved face plate in the Common Structure Rules has been updated.The variation of the effective coefficient of the primary supporting members curved face plate between the old and the new rule edition was analyzed.An example was given to compare the effect of specification modification on the effectiveness of the curved face plate.It was found that the rule change influence on the asymmetric curved face plates is much greater than that on the symmetric curved face plates;methods of setting radial brackets,changing asymmetric face plates to symmetric ones,adjusting the slenderness of the curved face plates to get the maximum flange effective coefficient and using fine mesh analysis can be used for structural reinforcement and weight control.