基于有限元法的水电站预应力闸墩应力变形分析  

Analysis of the Stress and Deformation of the Prestressed Pier in a Hydropower Station Using Finite Element Method

作　　者：陈中阳 赵二峰[1] 娄一青 盛云锋 Chen Zhongyang;Zhao Erfeng;Lou Yiqing;Sheng Yunfeng(CollegeofWaterConservancyand HydropowerEngineering,HohaiUniversity,Nanjing 210098,Jiangsu;Wenzhou Water Conservancy and Electric Power Survey and Design Assembly Company Ltd.,Wenzhou 325002,Zhejiang;Power China Zhongnan Engineering Corporation Limited,Changsha 410014,Hunan)

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]温州市水利电力勘测设计院有限公司,浙江温州325000 [3]中国电建集团中南勘测设计研究院有限公司,湖南长沙410014

出　　处：《陕西水利》2024年第4期1-4,8,共5页Shaanxi Water Resources

基　　金：国家自然科学基金项目(52079046)。

摘　　要：某大型水电站中墩溢流表孔的弧形工作闸门在正常蓄水位时承受巨大水推力,根据规范和工程经验采用预应力钢筋混凝土结构型式,通过建立三维有限元模型进行计算分析,比较闸墩预应力情况下三种典型工况的受力性能。结果表明:闸墩结构具有相当的刚度;应力分布符合一般规律,预应力体系布置合理。The radial service gate of the surface overflow hole in a large hydropower station is under huge hydraulic thrust during normal water level.According to specifications and engineering experience,a prestressed reinforced concrete structure is adopted.A three-dimensional finite element model is established.The stress performance of the gate pier under three typical working conditions under prestressed is deeply explored.The results show that the gate pier structure owns considerable stiffness,the stress distribution conforms to general laws,and the layout of the prestressed system is reasonable.

关 键 词：预应力闸墩 有限元 锚块 预留平孔 颈部 

分 类 号：TV662.2[水利工程—水利水电工程]