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杨 勇, 李守义, 刘计良, 肖 阳, 李 浪, 杨 光.基于构件协同工作的平面钢闸门主梁最优梁高研究水资源与水工程学报[J].,2019,30(5):194-198
基于构件协同工作的平面钢闸门主梁最优梁高研究
Research on optimal beam height of main girder of plane steel gate based on component cooperative work
  
DOI:10.11705/j.issn.1672-643X.2019.05.29
中文关键词:  平面钢闸门  主梁  最优梁高  最小梁高  经济梁高  构件协同工作  有限元分析
英文关键词:plane steel gate  main beam  optimal beam height  minimum beam height  economic beam height  component cooperative work  finite element analysis
基金项目:国家自然科学基金项目(51579208),陕西省自然科学基金项目(2018JQ5102)
作者单位
杨 勇, 李守义, 刘计良, 肖 阳, 李 浪, 杨 光 (西安理工大学 西北旱区生态水利国家重点实验室, 陕西 西安 710048) 
摘要点击次数: 21
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中文摘要:
      关于水工平面钢闸门主梁梁高的选取问题,规范未给出通用的取值范围,在工程中多以未考虑主梁与其他构件协同工作的理论求解公式为参考。在满足稳定性要求、考虑面板及隔板等构件与主梁协同工作的条件下,采用有限元分析理论,建立平面钢闸门空间有限元模型,计算分析主梁的强度和刚度的变化规律,给出合理的平面钢闸门主梁的最优梁高。结果表明:在考虑各构件协同工作时的主梁受力更贴合实际情况;在最小梁高与经济梁高之间存在最优梁高,与最小梁高的比值约为1.038,与理论公式计算的最优梁高相比,可使主梁翼缘、腹板等构件的应力减小,在此梁高下可使主梁工作性能发挥到最优。计算结果可为平面钢闸门梁高的设计提供参考。
英文摘要:
      The general value ranges are not given in the standard for the selection of the beam height of the main girder of the hydraulic plane steel gate, and the theoretical solution formula that does not consider the main beam and other components work together is taken as a reference in the actual projects. Under the condition that the stability requirements are met and the components such as the panel and the partition plate work together with the main beam, the finite element analysis theory was used to establish the finite element model of the plane steel gate space, the variation law of the strength and stiffness of the main beam was calculated and analyzed, and the optimum beam height of the main beam of the plane steel gate was obtained. The results showed that the stress of the main beam is more suitable when considering the cooperative work of each component. The optimal beam height exists between the minimum beam height and the economic beam height, and the ratio of the optimal and minimum beam height is about 1.038. Compared with the excellent beam height from the theoretical formula, the stress of the main beam flange and the web can be reduced, and the working performance of the main beam can be optimized at this beam height. The results in this paper can provide reference for the design of plane steel gate height.
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