水荷载作用下渡槽结构性态数值模拟分析  

Numerical Simulation Analysis of Aqueduct Structure Behavior under Water Load

作　　者：温斯钧 郭亚伟[2] 朱莎莎[1] 曹克磊 WEN Sijun;GUO Yawei;ZHU Shasha;CAO Kelei(North China University of Water Resources and Electric Power,Zhengzhou 450045,China;Jiangsu Provincial Irrigation Channel Management Office,Huaian 223200,China)

机构地区：[1]华北水利水电大学,河南郑州450045 [2]江苏省灌溉总渠管理处,江苏淮安223200

出　　处：《河南水利与南水北调》2021年第5期74-76,共3页Henan Water Resources & South-to-North Water Diversion

摘　　要：以景泰工程渡槽结构为研究对象,利用ANSYS有限元软件,建立渡槽结构三维有限元模型,研究无水、设计水位和满槽水位3种不同工况下渡槽结构的位移和应力变化规律。研究结果表明:满槽水位工况下渡槽结构竖直向的位移最大,最大值为5.05 mm;满槽工况下渡槽结构的拉应力最大值主要体现在拉杆区域,最大拉应力值达到了2.13 MPa,不利于工程的运行安全,应采取相应的加固措施;渡槽结构的压应力值随水位升高而增加,其中满槽水位工况下槽体结构的压应力值为6.27 MPa。Taking the aqueduct structure of Jingtai Engineering as the research object,a three-dimensional finite element model of aqueduct structure is established by using ANSYS software,which is used to study the displacement and stress variation rules of aqueduct structure under three different working conditions of no water level,design water level and full water level. The results show that the vertical displacement of the aqueduct structure is the largest under full water level conditions,with a maximum value of 5.05 mm. The maximum tensile stress of the aqueduct structure under the full condition is mainly reflected in the tie rod area,and the maximum tensile stress reaches 2.13 MPa,which is not conducive to the safety of project operation. Corresponding reinforcement measures should be taken. The compressive stress value of the aqueduct structure increases as the water level rises. The compressive stress value of the tank structure under the condition of full water level is 6.27 MPa.

关 键 词：渡槽 数值模拟 应力 位移 

分 类 号：TV3[水利工程—水工结构工程] TV93