不同计算模型下圆形水池底板内力分析  

Stress Analysis of Base Slabs of Circular Water Retaining Tanks Using Different Calculation Models

作　　者：朱亚冲 周昌杰 韩天华 Zhu Yachong;Zhou Changjie;Han Tianhua(Tianjin Municipal Engineering Design&Research Institute,300392,China)

机构地区：[1]天津市政工程设计研究总院有限公司,300392

出　　处：《特种结构》2023年第3期37-41,共5页Special Structures

摘　　要：弹性地基上的底板设计,是水池结构设计的重点和难点。不同的计算模型与实际情况均有出入,计算所得的结果也会不相同,甚至出入较大。本文对两个实际工程中的圆形水池结构,采用有限元分析软件MIDAS GTS NX,分别建立反力直线分布假定模型、Winkler地基模型和弹性半空间地基模型,进行数值模拟计算。通过对底板变形和内力的对比分析,探讨壁板、底板与地基间的相互作用,为圆形水池结构设计提供理论指导。The base slab design on the elastic foundation is the key and difficult point of the water retaining tank structure design.Calculation models are different from the actual situation,so the results of calculation will be different,or even a big difference.In this paper,the linear distribution assumption model of reaction force,Winkler foundation model and elastic half-space foundation model were established respectively by the finite element analysis software MIDAS GTS NX for the circular water retaining tank structures in two practical projects,and the numerical simulations were carried out.Through the comparative analysis of the deformation and stress of base slab,the interaction between wall panel,base slab and foundation were discussed,which provided theoretical guidance for the structural design of circular water retaining tank.

关 键 词：圆形水池 底板内力 弹性地基 计算模型 

分 类 号：TU991.343[建筑科学—市政工程] TU992.24