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工程力学  2015 

圆角多边孔蜂窝梁孔间腹板屈曲承载力研究

DOI: 10.6052/j.issn.1000-4750.2013.10.0978, PP. 145-152

Keywords: 结构工程,蜂窝梁,圆角多边形孔,孔间腹板,局部屈曲,屈曲承载力,斜压柱理论

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Abstract:

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。

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