薄壁式渡槽运营期三维有限元分析  

Three Dimensional Finite Element Analysis of Thin-wall Aqueduct in Operation Period

作　　者：何伟[1] 朱亚飞[1] 陈桥阳 李亚伟[2] 

机构地区：[1]华北水利水电大学,河南郑州450011 [2]水利部综合事业局,北京100053

出　　处：《水力发电》2016年第1期49-52,共4页Water Power

基　　金：郑州市科技局科技发展计划项目(20130844);河南省教育厅研究计划项目(13B130110)

摘　　要：以葛沟薄壁简支梁式渡槽为研究对象,基于大型通用有限元软件ANSYS平台,在考虑预应力作用的情况下,建立了葛沟渡槽的精细化三维有限元模型。计算得到了空槽水位、半槽水位、设计水位和满槽水位4种不同工况下渡槽挠度和应力。计算结果表明,渡槽的设计方案合理,运营期应力和挠度较小,满足规范要求。所得结果对薄壁简支梁式渡槽的设计具有较大的参考价值。Taking Gegou thin-wall simple beam aqueduct as research object, a three-dimensional finite element model is built by using finite element software ANSYS and after considering the pre-reinforcement condition. The deflections and stresses of the aqueduct under four operating conditions of space level, semi tank level, design level and full water level are calculated respectively. The results show that the design of aqueduct is reasonable, the deflection and stress is smaller in operation period which meets the requirements of specification. The conclusions can provide references to the design of similar thin-wall simple beam aqueducts.

关 键 词：薄壁简支梁式 有限元模型 应力 挠度 葛沟渡槽 

分 类 号：TV311[水利工程—水工结构工程] TV672.3