基于MIDAS>S&NX的泵站结构位移及应力分析
Pump station structural displacement and stress analysis based on MIDAS GTS NX
戚庆军 1吴昊 2林旭 2江飞龙 2刘家树2
作者信息
- 1. 安徽省驷马山引江工程管理处,安徽 马鞍山 238251
- 2. 淮安市水利勘测设计研究院有限公司,江苏 淮安 223005
- 折叠
摘要
为研究不同工况下泵站主应力与位移受土荷载与水荷载作用的影响,以驷马山灌区长山水库补水工程张渡取水站为例,通过MIDAS GTS NX软件建立泵站三维有限元模型,并采用修正摩尔-库伦本构模型将不同工况下泵站主应力与位移分布结果与规范要求限值进行比较,揭示张渡取水站在不同工况下主应力与位移变化关系.泵站最大位移与结构应力均满足规范要求,其中不同工况下最大位移变化较小,主要是数模计算下站身完建后沉降已趋于稳定,受水位变化影响较小;不同工况下泵站闸墩最大主拉应力变化较小,但泵站底板最大主拉应力受工况的变化影响较大,设计时应当着重考虑底板部位强度设计,防止底板受拉破坏.
Abstract
To study the influence of soil and water loads on the main stresses and displacements of the pump station under dif-ferent operating conditions,the Zhangdu water intake station of the Changshan reservoir replenishment project in the Simashan irrigation district was taken as an example.A 3D finite element model of the pump station was established using MIDAS GTS NX software.The modified Mohr-Coulomb constitutive model was used to compare the distribution results of the main stresses and displacements of the pump station under different conditions with the specified limit values in the standards.This analysis revealed the relationship between the main stresses and displacements of the Zhangdu water intake station under varying oper-ating conditions.The maximum displacement and structural stress at the station both met the standard requirements.The maxi-mum displacement under different operating conditions changed minimally,primarily because the settlement of the station body had stabilized after completion,and the impact of water level changes was small.The maximum principal tensile stress of the pump station sluice pier varied little under different operating conditions.However,the maximum principal tensile stress at the pump station's bottom slab was significantly influenced by changes in operating conditions.Therefore,the strength design of the bottom slab should be given special attention during the design phase to prevent tensile failure of the bottom slab.
关键词
三维有限元/泵站/位移/应力变形Key words
3D finite element/pumping station/displacement/stress and deformation引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据