长江科学院院报2017，Vol.34Issue(12)：122-125,4.DOI:10.11988/ckyyb.20160802
水电站厂房结构自振特性与止水优化分析
Structural Free Vibration and Water Sealing Optimization of Powerhouse in Hydropower Plants
摘要
Abstract
Wall and column structures above the generator layer are primary concerns for studying structural vibration issues of ground powerhouses in hydropower plants.In this article,the influences on free vibration characteristics of a powerhouse when the wall and column structures are connected by steel frames with large stiffness are studied.Furthermore,the influences of sealing structures on stress distribution of powerhouse structures are also studied with design schemes in ANSYS models.The calculation results show that connecting the wall and column structures with steel frames is favorable for the overall vibration characteristics of powerhouse.But the improvement is not remarkable.On the other hand,the position of sealing structures significantly affects the stress distribution,especially stress distribution of volute concrete,of powerhouse structures under designed working loads.These findings provide useful references for the structural design and sealing structure optimization of powerhouses in hydropower plants.关键词
厂房结构/数值仿真/自振特性/止水结构/受力优化Key words
powerhouse structure/numerical simulation/free vibration characteristic/sealing structure/stress optimization分类
数理科学引用本文复制引用
李玉婕,赵世英,罗荣..水电站厂房结构自振特性与止水优化分析[J].长江科学院院报,2017,34(12):122-125,4.基金项目
国家自然科学基金青年基金项目(51409013) （51409013）
长江科学院中央级公益性科研院所基本科研业务费项目(CKSF2017014/YT,CKSF2016045/YT,CKSF2016038/YT) （CKSF2017014/YT,CKSF2016045/YT,CKSF2016038/YT）
