某拦河蓄水钢闸门主梁优化及有限元分析  

Girder Optimization and Finite Element Analysis of A Top Emersed Steel Sluice

作　　者：郑圣义[1] 姚辉 陈笙 牛继业 ZHENG Sheng-yi;YAO Hui;CHEN Sheng;NIU Ji-ye(College of Energy and Electrical Engineering, Hohai University, Nanjing 210098,China;Hunan Provincial Investigation and Design Institute of Navigational Matters,Changsha 410005, China)

机构地区：[1]河海大学能源与电气学院,江苏南京210098 [2]湖南省航务勘察设计研究院,湖南长沙410005

出　　处：《水电能源科学》2018年第4期187-190,212,共5页Water Resources and Power

摘　　要：为改善水工钢闸门主梁腹板的应力分布,减小主梁挠度,提出了一种新型的主梁结构即实腹式双拱形主梁。以某露顶式拦河蓄水闸为例,利用有限元软件ANSYS分别建立了梯形变截面梁腹板模型和双拱形变截面梁腹板模型、梯形变截面主梁闸门和双拱形主梁闸门模型,对两种主梁和闸门分别进行静特性结构分析,比较两种主梁腹板和闸门各构件的应力及变形。结果表明,双拱形变截面梁闸门各个构件的最大折算应力比梯形变截面梁闸门基本小8%以上,位移挠度比梯形变截面梁闸门小14%左右。说明在强度安全和刚度校核时,双拱形变截面梁闸门优于梯形,在水工钢闸门主梁优化及设计时,可考虑采用双拱形变截面主梁。In order to improve the stress distribution of web of hydraulic steel gate＇s main girder and reduce the deflection of main girder,this paper put forward a new main beam structure,which is the solid web double-arch main girder.Taking a top emersed steel gate as an example,the web of hydraulic steel gate＇s main girder models and gate models were established,which use trapezoidal variable cross-section beam and double-arch variable cross-section beam,by the finite element software ANSYS.The stress and deformation of the two webs of hydraulic steel gate＇s main girder and the main components of the two gate＇s were compared.The results show that the stress of each gate components in double-arch beam is almost smaller 8%than that of the trapezoidal plane beam gate,and the strain is smaller 14%than that of the trapezoidal plane beam gate.So,in the strength safety and stiffness check,double-arch beam gate is better than trapezoidal beam gate.What＇s more,the double-arch main girder can be considered in the girder optimization and design of hydraulic steel gate.

关 键 词：露顶式钢闸门 双拱形主梁 ANSYS 主梁优化 结构分析 

分 类 号：TV663.1[水利工程—水利水电工程]