大直径圆形水池三维有限元应力—变形分析

Three-dimensional Finite Element Stress-deformation Analysis of Large Diameter Circular Water Tank

以珠江三角洲水资源配置工程鲤鱼洲高位水池结构为研究对象,建立高位水池-地基系统整体模型,考虑温度荷载和常规荷载的组合工况,基于ABAQUS有限元软件,分析了高位水池在运行水位工况下的结构应力和变形情况。结果表明:温度荷载对水池池壁的应力和位移影响较大,无论温升还是温降,都显著增加水池池壁的应力;由于系统温度效应,温降时,径向向池内变形,竖向向下变形;在温升时,径向向池外变形,竖向向上变形。

Taking the Liyuzhou high water tank structure of the the Pearl River Delta Water Resources Allocation Project as the project object,the overall model of the high-level water tank-foundation system is established.Considering the combination of temperature load and conventional load,based on ABAQUS finite element software,the structural stress and deformation of the high-level water tank under the operating water level condition are analyzed.The results show that temperature load has a significant impact on the stress and displacement of the water tank structure,and both temperature rise and temperature drop significantly increase the stress of the water tank structure.Due to the thermal expansion effect,when the temperature drops,it shrinks radially into the pool and vertically downwards.During temperature rise,it expands radially towards the outside of the pool and vertically upwards.