有限元内力法在超大型弧形工作闸门结构计算应用  

Application of Finite Element Internal Force Method in Structural Calculation of Super Large Arc Working Gate

作　　者：曹慧颖 曹亚超 CAO Hui-ying;CAO Ya-chao(Power China Kunming Engineering Corporation Limited,Kunming 650051,China;National Center of Quality Inspection&Testing for Hydraulic Metal Structure Ministry of Water Resource,Zhengzhou 450044,China)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051 [2]水利部水工金属结构质量检验测试中心,河南郑州450044

出　　处：《云南水力发电》2021年第11期94-100,共7页Yunnan Water Power

摘　　要：以小湾泄洪洞弧形工作门为例,采用有限元内力法计算出闸门各构件的受力和内力分布情况,然后根据有限元内力法得出的构件内力,采用材料力学法计算构件应力,并与平面体系法及常规三维有限元计算得出的应力进行对比。有限元内力法建立在三维有限元法基础之上,不但具有常规三维有限元法的优点,能够反映出超大型弧形闸门的空间结构效应,而且还可以避免常规有限元法局部不合理的应力集中。Taking the curved working gate of Xiaowan flood discharge tunnel as an example,this paper uses finite element internal force method to calculate the force and internal force distribution of each component of the gate.According to the internal force of the component obtained by finite element internal force method,the stress of the component is calculated by material mechanics method,and compared with the stress calculated by plane system method and conventional three-dimensional finite element method.Finite element internal force method is based on three-dimensional finite element method,which can not only reflect the spatial structure effect of super large radial gate,but also avoid local unreasonable stress concentration in conventional finite element method.

关 键 词：有限元内力法 闸门结构计算 常规三维有限元法 结构效应 

分 类 号：TV34[水利工程—水工结构工程]