某观光塔基础刚度的数值优化分析

本文采用有限元法对某观光塔结构在不同基础刚度下的力学特性进行了数值分析。计算模型采用多自由度悬臂梁体系,在一定范围内设定不同大小的基础水平刚度和转动刚度。数值模拟分析了基础刚度对该塔上部结构力学特性的影响,从而选择比较优化的基础刚度。并将实际采用的基础形式与塔体建立了整体模型,并进行比较分析,其研究结果可为该类型塔基础的优化设计提供参考依据。

Numerical Optimization Analysis of Foundation Stiffness of a Sightseeing Tower

A finite-element analysis is made to investigate the structural mechanical properties of a sightseeing tower in this paper.In the numerical structural analysis model,a multi-degree of freedom cantilever system is adopted,in which the horizontal stiffness and rotational stiffness of the foundation can be varied to a certain extent.The influences of foundation stiffness on structural responses of the tower are analyzed numerically,and the optimizing stiffness of the foundation is chosen.A whole model including the tower and the foundation is built,which is also analysed.The results are compared and the research conclusions may provide a helpful reference for the optimization design of the tower foundation.