太阳辐射对人字闸门影响的有限元分析  

Finite element analysis of solar radiation effect on miter gate

作　　者：姚家晖 杨光明[1] YAO Jia-hui;YANG Guang-ming(College of Energy and Electric Engineering,Hohai University,Nanjing 211100,China)

机构地区：[1]河海大学能源与电气学院,江苏南京211100

出　　处：《水运工程》2022年第9期116-121,共6页Port & Waterway Engineering

摘　　要：人字闸门自身重力大且抗扭能力弱,在自然悬挂时会产生扭转变形。人字闸门作为钢构件处于露天环境中,夏季在太阳辐射的直接作用下其温度远高于环境温度,这将加剧人字闸门的结构变形。为了量化太阳辐射对人字闸门结构的影响,基于ASHRAE晴空模型,通过ANSYS有限元软件仿真分析人字闸门的温度场、变形及应力分布情况。结果表明:1)在太阳辐射作用下,形成空间分布比较均匀的闸门温度场,在15时左右达到最高温度67℃。2)在最高温度荷载下闸门主要构件变形与应力仍符合标准要求,但闸门变形随温度升高逐渐加剧,其中斜接柱位移与背拉杆变形增加1~3倍,在实际工程设计中应引起重视。Due to its high gravity and weak torsional resistance,the miter gate will produce torsional deformation when hanging naturally.As a steel member,the miter gate is in an open-air environment,and its temperature is much higher than the ambient temperature under the direct action of solar radiation in summer,which will aggravate the structural deformation of the miter gate.To quantify the influence of solar radiation on the structure of the miter gate,based on ASHRAE clear sky model,the temperature field,deformation and stress distribution of the miter gate are simulated by ANSYS finite element software.The results show that:1)Under the action of solar radiation,the temperature field with uniform spatial distribution is formed,and the maximum temperature reaches 67℃at about 3 pm.2)The deformation and stress of the main components of the gate still meet the standard requirements under the maximum temperature load.The deformation of the gate gradually increases with the temperature rise,and the displacement of the miter column and the deformation of the back tie rod increase by 1~3 times,which should be paid attention to in practical engineering design.

关 键 词：人字闸门 太阳辐射 ASHRAE晴空模型 变形与应力 

分 类 号：TV663[水利工程—水利水电工程] U641[交通运输工程—船舶及航道工程]