圆角多边孔蜂窝梁孔间腹板屈曲承载力研究

王培军, 王旭东, 马宁

王培军, 王旭东, 马宁. 圆角多边孔蜂窝梁孔间腹板屈曲承载力研究[J]. 工程力学, 2015, 32(4): 145-152. DOI: 10.6052/j.issn.1000-4750.2013.10.0978
引用本文: 王培军, 王旭东, 马宁. 圆角多边孔蜂窝梁孔间腹板屈曲承载力研究[J]. 工程力学, 2015, 32(4): 145-152. DOI: 10.6052/j.issn.1000-4750.2013.10.0978
WANG Pei-jun, WANG Xu-dong, MA Ning. WEB-POST BUCKLING OF CASTELLATED STEEL BEAM WITH FILLET CORNER WEB OPENINGS[J]. Engineering Mechanics, 2015, 32(4): 145-152. DOI: 10.6052/j.issn.1000-4750.2013.10.0978
Citation: WANG Pei-jun, WANG Xu-dong, MA Ning. WEB-POST BUCKLING OF CASTELLATED STEEL BEAM WITH FILLET CORNER WEB OPENINGS[J]. Engineering Mechanics, 2015, 32(4): 145-152. DOI: 10.6052/j.issn.1000-4750.2013.10.0978

圆角多边孔蜂窝梁孔间腹板屈曲承载力研究

详细信息
    作者简介:

    王旭东(1988―),男,青岛人,硕士生,从事钢结构稳定性研究(E-mail: wangxudong@sdu.edu.cn); 马 宁(1989―),女,济南人,硕士生,从事钢结构抗火性能研究(E-mail: maning890923sd@163.com).

    通讯作者:

    王培军(1976―),男,济南人,副教授,博士,从事钢结构抗火性能和设计理论研究

WEB-POST BUCKLING OF CASTELLATED STEEL BEAM WITH FILLET CORNER WEB OPENINGS

  • 摘要: 提出一种圆角多边形孔蜂窝梁孔间腹板受剪屈曲承载力的分析方法。该孔型蜂窝梁具有与圆孔蜂窝梁相同的良好受力性能,但制作工艺简易且不损失扩展比。采用有限元方法研究了跨中集中力作用下蜂窝梁孔间腹板的屈曲模式和屈曲承载力。有限元分析考虑的参数包括孔间距与孔高之比和孔高与腹板厚之比等。并提出了改进的斜压柱理论模型以用于圆角多边形孔蜂窝梁孔间腹板的屈曲承载力计算。
    Abstract: An analytical method is presented for predicting the buckling strength of the web-post in a castellated steel beam with the newly proposed fillet corner openings. Castellated steel beams with the proposed opening shape have the same good structural performance as those having circular openings. However, they are simple and economical to manufacture and there is no loss in the expansion ratio. The buckling modes and buckling strength of the web-post were studied using the finite element method. The parameters studied included the ratio of the opening distance to the opening height, and the ratio of the opening height to the web thickness. A strut model is proposed to predicate the buckling strength of the web-post in a castellated steel beam with the new fillet corner openings.
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出版历程
  • 收稿日期:  2013-10-20
  • 修回日期:  2014-05-15
  • 刊出日期:  2015-04-24

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