水电站垫层蜗壳结构应力及配筋分析  

Stress Analysis of Spiral Case with Cushion for Hydropower Station and Its Reinforcement

作　　者：于磊[1] 夏辉 

机构地区：[1]中国水电顾问集团中南勘测设计研究院,长沙410014 [2]江苏省水利勘测设计院有限公司,江苏扬州225009

出　　处：《三峡大学学报（自然科学版）》2013年第4期32-36,共5页Journal of China Three Gorges University：Natural Sciences

摘　　要：以某大型水电站为实例,采用接触非线性间隙元法模拟了蜗壳、混凝土及垫层之间的接触摩擦效应,并以分段线性模型的方式近似模拟了垫层的非线性本构关系,对不同垫层厚度下的水电站垫层蜗壳结构进行了计算分析,给出了垫层厚度与蜗壳应力、混凝土应力、承载比例及截面配筋量的关系,供工程设计参考.Combined with the project of a large hydropower station, this article simulated the frictional con- tact effects among spiral case, cushion and peripheral reinforced concrete by the method of gap-element and simulated the nonlinear constitutive relation of cushion by the method of segment linear relation. Througth analyzing the spiral case with different cushion thicknesses, the relation among cushion thickness, spiral case stress, concrete stress, distribution ratio of load and amount of reinforcement, are given, so as to offer for reference in project design.

关 键 词：水工结构 蜗壳 垫层厚度 应力 承载比 配筋量 

分 类 号：TV314[水利工程—水工结构工程]