尾水调压室底部钢筋混凝土岔管三维有限元结构分析  

Three Dimensional Finite Element Analysis of Reinforced Concrete Bifurcated Pipe at the Bottom of Tailrace Surge Chamber

作　　者：任天卫 章亮 王维娜 徐三敏 REN Tianwei;ZHANG Liang;WANG Weina;XU Sanmin(Beijing Engineering Corporation Limited,Beijing 100024,China;Technology Center of State Grid Xinyuan Co.Ltd.,Beijing 100161,China)

机构地区：[1]中国电建集团北京勘测设计研究院有限公司,北京市100024 [2]国网新源控股有限公司技术中心,北京市100161

出　　处：《水电与抽水蓄能》2020年第4期71-77,共7页Hydropower and Pumped Storage

基　　金：国家电网公司科技项目“可变速抽水蓄能机组过渡过程数值仿真及控制策略研究”(525730190004)。

摘　　要：采用有限元计算软件ANSYS建立岔管及周围岩体的三维模型,通过对尾水调压室底部混凝土岔管结构的设计,分析结构应力结果。根据应力特点,选择不同工况、不同部位的应力结果进行配筋计算及相应的裂缝宽度验算,作为该类结构的施工及后续工作的依据,同时为该类型的混凝土岔管结构的受力特点分析提供参考。In this paper,through the desigh of the reinforced concrete bifurcation which is at the bottom of the tailrace chamber,three-dimensional model of reinforced concrete bifurcation and surrounding rock mass is been established by using ANSYS.The finite element simulation is performed and the stress distribution is given.According to the stress characteristics,the stress results of different working conditions and different parts are selected for reinforcement calculation and corresponding crack width checking calculation,which can Provide suggestions and basis for the construction and follow-up work of such structures.At the same time,the relevant experience is accumulated for the analysis of the mechanical characteristics of this type of concrete bifurcated pipe structure.

关 键 词：混凝土岔管 有限元 

分 类 号：TV732.53[水利工程—水利水电工程]