曲线型树状柱计算长度和稳定性分析研究

Research on Effective Length and Stability of Curve Dendritic Column

首先介绍了树状柱结构的分类和在国内外的应用,然后结合具体工程案例研究了树状柱曲线分支计算长度系数的确定方法,给出了该工程中曲线分支计算长度系数取值建议,同时讨论了曲线分支矢高比、长度比、线刚度比与计算长度系数的关系,最后对树状柱结构进行非线性分析,考察结构的失稳模式和安全系数,旨在为曲线型树状柱在工程中应用积累经验,为工程设计提供参考。

Classification and application of dendritic structure at domestic and abroad was introduced,and then the method of calculating the effective length coefficient was discussed in engineering cases. The suggestions on curved branch effective length coefficient values were given,and then the relationships between curved branch height ratio,length ratio,stiffness ratio and effective length coefficient were discussed. Finally,the buckling modes and safety factor of dendritic structure were investigated by nonlinear analysis. It aims to provide experience for engineering application and design of curved dendritic structure.