摘要
有限元法计算功能很强,但由于应力集中,难以直接用于混凝土拱坝体形设计,本文首先说明采用笔者提出的有限元等效应力可以解决这一矛盾,然后给出它的计算方法和计算结果,最后说明有限元等效应力的控制标准。笔者提出的上述方法和控制准则已为我国《混凝土拱坝设计规范》(DL/T 5346—2006)所采用。
The finite element is a powerful method,but due to stress concentration,the tensile stress at the dam heel given by it is very large,so it is difficult to apply it directly in the design of arch dams.Integrating the stresses computed by FEM will give the internal forces of the dam from which the equivalent stresses will be obtained by the formula in material mechanics.The computing methods,examples of application and control criterion of the equivalent stress are described in this paper.
出处
《水利水电技术》
CSCD
北大核心
2012年第4期30-32,共3页
Water Resources and Hydropower Engineering
关键词
混凝土拱坝
有限元
等效应力
计算方法
控制标准
concrete arch dam
finite element
equivalent stress
computing method
control criterion
