高位水塔优化设计研究

Study on Optimization Design of the High Level Water Tower

以某工程为背景，以通用有限元结构分析与设计软件Midas—gen为计算工具，建立高位水塔仿真模型并进行分析和研究。研究结果表明：1）屈曲分析得到的临界荷载同理论计算值有一定差别，主要原因在于初始缺陷的存在；2）加劲肋可有效提高筒壁式水塔整体屈曲的临界荷载；3）三立柱支架式水塔的受力性能满足使用及抗震要求，且造型美观，用钢量更为经济；4）水塔中的水有减震作用；5）通过设置改善地震中水塔中心分布装置可以减轻重力的P-△效应。

Based on the background of a project, by using general finite element structural analysis and design software Midas-gen as a calculation tool, simulation model of the high level water tower is analyzed and studied. The research results show that： 1） The critical load of buckling analysis with the theoretical values have certain difference, and the main reason is that the initial defects; 2） Stiffeners can effectively improve the overall buckling critical load of cylinder wall tower; 3） Three column scaffolding tower stress performance satisfy the requirements for and seismic, and beautiful appearance; 4） The water in the tower vibration; 5.By setting the improved device for water tower center distribution of the earthquake can reduce the effect of gravity P-delta.