摘要
以佛湾水库为例,针对拱坝应力状态比较复杂的问题,采用三维有限元法计算了单曲砌石拱坝在多种荷载组合作用下的坝体应力及变形。结果表明,坝体的应力及变形均符合一般规律,且坝体变形较小、坝体上游面拱端处拉应力较大、坝体与坝基接触处存在应力集中现象,经有限元等效应力计算后,其结果在规范允许的范围之内,从而验证了设计方案的可行性。
Aiming at complex stress status of areh dam in Fowan reservoir, three-dimensional finite element method is adopted to simulate the stress and deformation of single curvature stone masonry arch dam under the multi-load combination action. The results show that the stress and deformation of the dam body accord with the general rule of finite element method calculation; the dam deformation is small; the tensile stress of dam abutment upstream surface is larger and the stress concentration phenomenon exists in the contact point between the dam and the foundation; but through the calculation of finite element method equivalent stress, the stress result is within the permitted scope of criterion. Thus it verifies the feasibility of the arch dam design scheme.
出处
《水电能源科学》
北大核心
2011年第7期61-63,15,共4页
Water Resources and Power
关键词
砌石拱坝
有限元法
变形
应力
等效应力
masonry arch dam
finite element method
displacement
stress
equivalent stress
