水利水电技术2018，Vol.49Issue(3)：73-77,5.DOI:10.13928/j.cnki.wrahe.2018.03.011
基于有限元法的廖坊灌区渡槽结构内力分析
Finite element method-based analysis on structural internal force of Liaofang Aqueduct
摘要
Abstract
During solving finite element modeling for actual engineering project,the cross-section for the internal force to be solved is often not directly constituted with the grid element planes,thus the internal force value of an arbitrary cross-section cannot be directly solved with the finite element internal force method.In accordance with the method proposed herein,the finite element calculation is made on the integral structural member to get the information of the displacement value of the node on grid element,its corresponding stress value,etc.at first,and then the grid element of the structural member that the cross-section is located on is separated out from the 3-D finite element model;from which the stress value of the node of the separated grid element is directly used to write the balance equation for the cross-section.Subsequently,the internal force of arbitrary cross-section on the separated element can be conveniently solved in accordance with the method of structural mechanics.The correctness and feasibility of the method proposed herein are verified through an actual engineering application case of an aqueduct project at last.The finite element internal force method can conveniently solve the internal force value of a designated element in structure,and then provide a referential basis for the reinforcement design of concrete structure for the engineering designer concerned.关键词
有限元法/灌区/渡槽/结构力学法/配筋设计Key words
finite element internal force method/irrigation area/aqueduct/method of structural mechanics/reinforcement design分类
水利科学引用本文复制引用
万小明,林峰,刘祥睿,宋思露,齐慧君..基于有限元法的廖坊灌区渡槽结构内力分析[J].水利水电技术,2018,49(3):73-77,5.基金项目
水利部公益性行业科研专项经费项目(201501036) （201501036）
南水北调大型泵站群运行安全管理系统研发(SBE2015740749) （SBE2015740749）
