文档介绍：大跨度波纹拱有限元分析
大跨度波纹拱有限元分析
摘要:金属拱型波纹屋盖结构是一种新型的金属拱型薄壳结构。于二十世纪八十年代末引进我国,由于其具有诸多优点,目前已得到广泛地应用,并且具有极强的生命力和发展前景。本文所研究的波纹拱结构为大跨度结构,。但是目前国内外对这种结构的研究并不成熟和完善,,因此我们用大型有限元软件ABAQUS对其进行有限元分析。在进行波纹拱结构建模计算中,考虑了风、雪、结构自重等荷载及其组合,得到了波纹拱结构计算单元在各种荷载组合下的变形模态、MISES应力和位移并得到了一些有益的结论。结论如下:,可以通过细化有限元模型网格的方法来来实现,但计算时间会大大增加;,因此进行结构内力计算时要注意这种荷载组合;;,是安全可靠的,可以应用于实际工程,并对同类型复杂结构的分析具有参考价值。
关键词:波纹拱; 组合;有限元分析; 应力; 位移
Abstract: Arched Corrugated Metal Roof (ACMR) is a new type of metal arched thin-shell structure. It was introduced into China at the end of 1980s. Because it has a lot of virtues, this kind of structure has been found wide application and possesses strong vitality and a bright future. This paper studies are made of long-span corrugated arch structure for m long span . But by now, the study of this structure is still not mature and perfect. As for the m span of long-span structure still no corresponding technical regulations, so we use large finite element software to its ABAQUS finite element analysis.
This paper considers the wind, snow and gravity loads and bination structure in the corrugated arch structure calculation. puting unit of ACE deformation modes, MISES stress and displacement in a variety of binations ,and some useful conclusion. Conclusions are as fo