水力发电2017，Vol.43Issue(5)：52-55,4.
混凝土受拉软化特性对钢衬钢筋混凝土管道承载性能的影响研究
Study on the Effects of Tension Softening Characteristics on Bearing Performance of Steel Lined Reinforced Concrete Penstock
摘要
Abstract
The concrete softening curves obtained from the test results of research group and the codes for concrete structure design respectively are used to carry out the nonlinear finite element calculation of steel lined reinforced concrete penstock of Three Gorges Hydropower.Then the distribution of peripheral concrete cracks,the width of crack,the stress states of steel liner and reinforced bars,and the limit bearing performance of penstock are compared with the results of model tests.The results show that the initial crack load,damage region,crack number and steel stress of penstock concrete obtained by finite element calculation based on test softening curve are more consistent with the results of model tests.关键词
钢衬钢筋混凝土压力管道/承载性能/混凝土软化/非线性有限元Key words
steel lined reinforced concrete penstock/bearing performance/tension softening of concrete/nonlinear finite element method分类
建筑与水利引用本文复制引用
吴海林,朱良才,冉红洲,李群,覃事河..混凝土受拉软化特性对钢衬钢筋混凝土管道承载性能的影响研究[J].水力发电,2017,43(5):52-55,4.基金项目
国家自然科学基金面上项目(51379107) （51379107）
