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肖 阳, 李守义, 刘计良, 杨 勇, 张紫璇, 李 浪.弧形钢闸门支承钢梁横向加劲肋布置研究水资源与水工程学报[J].,2019,30(5):189-193
弧形钢闸门支承钢梁横向加劲肋布置研究
Study on the arrangement of the bearing steel beams transverse stiffeners of the radial steel gate
  
DOI:10.11705/j.issn.1672-643X.2019.05.28
中文关键词:  弧形钢闸门  支承钢梁  横向加劲肋  加劲肋布置  有限元
英文关键词:radial steel gate  bearing steel beam  transverse stiffener  stittener arrangement  finite element
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
肖 阳1, 李守义1,2, 刘计良1,2, 杨 勇1, 张紫璇1, 李 浪1 (1. 西安理工大学 水利水电学院 陕西 西安 710048 2.西北旱区生态水利国家重点实验室 陕西 西安 710048) 
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中文摘要:
      弧形钢闸门支承钢梁具有形式简洁、可快速装配并能有效减少闸室空间的优点,其安全性直接关系到闸门的安全运行,因此设计具有合理结构形式的弧门支承钢梁至关重要,其中加劲肋是保证钢梁局部稳定性及改善强度和刚度的重要构件。在满足局部稳定性的条件下,通过建立多种不同支承钢梁横向加劲肋间距的三维有限元模型,计算分析其对支承钢梁强度和刚度的影响规律,给出支承钢梁横向加劲肋间距合理布置区间。计算结果表明:横向加劲肋间距对支承钢梁翼缘及加劲肋本身的应力影响较大,但对腹板应力几乎无影响;支承钢梁横向加劲肋间距为 [1/3,1/2)倍的腹板高度时,钢梁材料的性能得到充分发挥,支承钢梁强度及刚度满足规范要求,兼具经济性和合理性,研究成果可为弧门支承钢梁的设计提供参考。
英文摘要:
      The bearing steel beam of the radial steel gate has the advantages of simple form, rapid assembly and effective reduction of lock chamber space, whose safety is directly related to the safe operation of the gate. Therefore, it is very important to design a bearing steel beam of the radial steel gate with a reasonable structure, and the stiffening rib is the important component for ensuring the local stability of the steel beam and improving the strength and rigidity. Under the condition of satisfying local stability, the reasonable interval of the transverse stiffener distance of the bearing steel beam was given by establishing the three-dimensional finite element model of different distance of the transverse stiffener of the bearing steel beam and calculating as well as analyzing the influence law on the strength and stiffness of the bearing steel beam. The result showed that the transverse stiffener distance has a great influence on the stress of the bearing steel beam flange and the stiffener itself, but has negligible effect on the web stress. When the transverse stiffener distance of the bearing steel beam was [1/3,1/2) times the web height, the performance of the steel beam material was fully exerted, and the strength and rigidity of the bearing steel beam met the requirements of the specification, which is both economical and rational. The research results can provide reference for the design of the bearing steel beams of the radial steel gate.
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