水资源与水工程学报2024，Vol.35Issue(4)：153-161,9.DOI:10.11705/j.issn.1672-643X.2024.04.18
纵向框架连接系对露顶式弧形钢闸门静动力特性影响分析
Influence of connection system in longitudinal frame on static and dynamic characteristics of emersed radial steel gates
摘要
Abstract
In water conservancy projects,radial steel gates play an important role in the discharge process.According to the accident cases,it was found that the radial steel gates were often damaged due to the insta-bility of the support arm.The arrangement of support arm connection systems can enhance the stability of the gate to a certain extent,but currently the connection systems are varied without clear standardized arrange-ment method.Taking the emersed three-arm radial gate as the research object,we studied the influence of different forms of connection systems on the static and dynamic characteristics of the gate by means of joint simulation of CAD-CAE.The results indicate that the arrangement of the connection system can signifi-cantly increase the stiffness of the gate,thereby changing the stress distribution of the gate structure and re-ducing the maximum stress.It is found that internal web and diagonal members of the support arm have a significant improvement effect on the static and dynamic effects of the gate,and priority should be given to their arrangement.In the numerical simulation,the components of the support arm connection system have a significant impact on the simulation results.Therefore,it is necessary to avoid overly simplifying the support arm connection system as much as possible in the verification of the support arm of the radial gate using the spatial finite element method.The research results can provide a reference for the arrangement and finite el-ement calculation of the support arm connection system of radial steel gates.关键词
露顶式弧形钢闸门/支臂连接系/闸门稳定性/空间有限元法/静力分析/模态分析Key words
emersed radial steel gate/support arm connection system/gate stability/spatial finite ele-ment method/static analysis/modal analysis分类
建筑与水利引用本文复制引用
鲍伟,王晨,刘亚坤,傅学敏..纵向框架连接系对露顶式弧形钢闸门静动力特性影响分析[J].水资源与水工程学报,2024,35(4):153-161,9.基金项目
国家自然科学基金项目(52179060) （52179060）
