轻型钢结构厂房蒙皮效应的静力分析

发布时间：2018-01-07 17:01

本文关键词：轻型钢结构厂房蒙皮效应的静力分析　出处：《华北水利水电大学》2016年硕士论文　论文类型：学位论文

【摘要】：轻型钢结构厂房中的屋面板和墙面板可使用具有强度高、重量轻、施工方便等诸多优点的单层彩钢板或夹芯彩钢板。它们能够利用自身的抗剪力参与厂房的总体受力,同时也有剪力传递的效果,从而可以提高结构的工作性能,这种围护体系的整体效应称为蒙皮效应。蒙皮效应的产生可以为其连接的元件提供有效的侧向约束,加强结构的整体性,提高抗侧移刚度,减小位移,进而可以撤去部分支撑结构,甚至还能减小其断面面积,这样不仅简化了结构,增加建筑物的美观性,并且能节约钢材,带来良好的经济效益。所以,进行对轻型钢结构厂房蒙皮效应的详细研究,具有非常重要的现实意义。近年来,单层彩钢板作为蒙皮材料的研究和试验已经取得了一些成果,而对于在保温、隔热、耐久等方面具有明显优势的彩钢夹芯蒙皮板的研究较少。本文针对夹芯彩钢板对轻型钢结构厂房产生的影响进行了系统性的研究,首先阐述了研究背景及意义,总结了国内外的研究现状,介绍了蒙皮结构的构成、工作机理以及蒙皮板的布置方式。然后结合开封市某有限公司1#仓库这一工程实例,通过ANSYS有限元分析软件,首先建立一榀刚架模型,根据相关规范要求来验证建模的正确与否,然后建立整体厂房模型。以对比分析的方式对无蒙皮结构和有蒙皮结构进行了静力分析,研究了两种结构在应力、位移和内力这三方面的区别。最后,详细讨论了柱高和屋面坡度的不同对结构的应力、位移和内力的影响规律,以期得到可供实际工程参考的考虑蒙皮效应设计的一般规律和建议。
[Abstract]:The roof panels and wall panels in the light steel structure factory building can be used with high strength and light weight. Single layer colored steel plate or sandwich colored steel plate with many advantages such as convenient construction. They can take advantage of their own shear resistance to participate in the overall force of the workshop, but also have the effect of shear transfer, so as to improve the performance of the structure. The whole effect of the envelope system is called the skin effect. The skin effect can provide effective lateral constraint for the connecting elements, strengthen the integrity of the structure, improve the anti-lateral stiffness, and reduce the displacement. Then some of the supporting structure can be removed, and even its cross section area can be reduced, which not only simplifies the structure, increases the beauty of the building, but also saves steel and brings good economic benefits. It is of great practical significance to study the skin effect of light steel structure factory building in detail. In recent years, some achievements have been made in the research and test of single layer colored steel plate as skin material, but for thermal insulation. Heat insulation, durability and other aspects of the obvious advantages of color steel sandwich leather plate less research. This paper systematically studied the impact of sandwich steel plate on light steel structure workshop. Firstly, the background and significance of the research are described, the current research situation at home and abroad is summarized, and the structure of the skin structure is introduced. The working mechanism and the arrangement of the sheathed plate. Then, combining with the engineering example of 1# warehouse of a limited company in Kaifeng, a rigid frame model was established by ANSYS finite element analysis software. According to the requirements of relevant specifications to verify whether the modeling is correct or not, and then establish the whole factory building model. The static analysis of the skinless structure and the skinned structure is carried out by contrast analysis, and the stress of the two structures is studied. Finally, the influence of column height and roof slope on the stress, displacement and internal force of the structure is discussed in detail. It is expected that the general rules and suggestions for the design of skinning effect can be obtained for practical engineering reference.
【学位授予单位】：华北水利水电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU392.5

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