摘要
复杂工程地质条件的拱坝常设置重力墩结构,针对拱坝及其重力墩的体型对整体工程安全性和经济性的影响,以坝体-重力墩混凝土方量为目标函数,将《混凝土拱坝设计规范》要求的限制倒悬度、主应力、中心角等作为约束条件,基于ANSYS有限元分析软件的计算模块和优化设计模块进行二次开发,并采用复合形法作为拱坝优化设计的基本算法对拱坝进行优化。结果表明,拱坝体型优化后混凝土体积比初拟体型体积减小12.00%,具有一定的工程实际意义。
Arch dam built on the complex base often includes the gravity abutment structure.The shape of arch dam and gravity abutment is critical to the dam safety and economy.Considering the constraints of overhang degree,principal stress and central angle,the mathematic model of arc dam optimization design was established by taking the amount of dam-gravity abutment concrete as the objective function.And it used complex method as the basic algorithm for optimization design of arch dam.Based on the calculation module and optimization design module in finite element analysis software ANSYS,the secondary development was carried out.Comparison of the initial body shape,the results show that the optimized concrete volume is decreased 12.00%.Therefore,it has certain practical engineering significance.
出处
《水电能源科学》
北大核心
2016年第4期51-53,62,共4页
Water Resources and Power
基金
江苏省2014年度普通高校研究生实践创新计划项目(校助)(2014B25614)
关键词
拱坝
重力墩
体型优化
复合形法
arc dam
gravity abutment
shape optimization design
complex method
