Simulation algorithm for spiral case structure in hydropower station

被引：1
|
作者：
Xin-yong XU [1 ,2 ]
Zhen-yue MA [1 ]
Hong-zhan ZHANG [1 ]
机构：
[1] Faculty of Infrastructure Engineering, Dalian University of Technology
[2] School of Hydraulic Engineering, North China University of Water Resources and Electric Power
来源：
Water Science and Engineering | 2013年 / 6卷 / 02期
基金：
中国国家自然科学基金; 河南省教育厅基金;
关键词：
hydraulic structure simulation; concrete damage-plasticity model; shell-spring model; spiral case;
D O I：
暂无
中图分类号：
TV33 [混凝土结构和加筋混凝土结构];
学科分类号：
081503 ;
摘要：
In this study, the damage-plasticity model for concrete that was verified by the model experiment was used to calculate the damage to a spiral case structure based on the damage mechanics theory. The concrete structure surrounding the spiral case was simulated with a three-dimensional finite element model. Then, the distribution and evolution of the structural damage were studied. Based on investigation of the change of gap openings between the steel liner and concrete structure, the impact of the non-uniform variation of gaps on the load-bearing ratio between the steel liner and concrete structure was analyzed. The comparison of calculated results of the simplified and simulation algorithms shows that the simulation algorithm is a feasible option for the calculation of spiral case structures. In addition, the shell-spring model was introduced for optimization analysis, and the results were reasonable.
引用
收藏
页码：230 / 240
页数：11
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