摘要
采用子结构单元法分析了溪洛渡双曲拱坝在坝身无孔、表孔＋深孔和表孔（二孔）＋中孔＋深孔三种工况下的坝身应力。研究表明，采用子结构单元模拟孔口，可以显著加密孔口局部区域网格，精确计入坝身刚度削弱及孔口应力集中，并且具有开口位置、尺寸及数量任意的特点。
In this paper,the three stress distribution cases of Xiluodu double curvature arch dam without outlets,with 8 upper outlets +7 bottom outlets and with 2 upper outlets +6 middle outlets +7 bottom outlets are analyzed with substructure element method.The study showed that the substructure element simulation can remarkablely density the local network of the outlet,precisely take account of the weakening dam stiffness and evaluate the stress concentration.The method is convenient to simulate various outlet position,size,shape and number.
出处
《水电站设计》
1999年第2期26-32,共7页
Design of Hydroelectric Power Station
关键词
双曲拱坝
孔口
子结构单元法
有限元法
水电站
double curvature arch dam
outlets
substructure element
stress analysis
finite element method
