2014世园会玻璃幕墙钢结构的应用研究

发布时间：2018-05-12 01:42

本文选题：钢结构节点 + ANSYS有限元模拟　；参考：《中国石油大学(华东)》2014年硕士论文

【摘要】：2014年青岛世界园艺博览会主体采用空间钢结构体系,表面为玻璃幕墙框架体系。钢结构在建筑结构中得到广泛应用,主要是由于钢结构体系具有安装容易、施工周期短、自重轻、能减小地震作用效应、抗震性能好、环境污染少等综合优势。根据世园会的设计施工方法和过程,结合常出现的问题,分析导致出现这些问题的原因,并采取措施进行补强,然后利用有限元分析检验以上措施的有效性。根据ANSYS软件对各种因素和结构形式的分析研究,提出最为合理的结构以及整体的结构形式,以供工程应用参考。通过ANSYS对玻璃幕墙钢结构节点进行理论分析,考虑对其力学性能的影响因素,从而设计出更合理的节点形式,希望对广大设计施工人员有所帮助。通过对钢结构、玻璃幕墙的力学性能的研究,理论公式的推导,结构的有限元分析,从而得出最合理的节点形式,以便工程应用参考,产生更好的经济效应和社会效应。为了更好的了解钢结构节点的受力特点,我们建立一个钢结构节点,对其在剪力单独作用下、弯矩单独作用下、剪力与弯矩共同作用下进行模拟,系统地分析了钢梁上翼缘与上环板、钢梁下翼缘与下环板、钢梁腹板、钢管柱的受力特性。通过分析得出:(1)钢结构节点的应力最大点首先在钢管柱跟环板接触的部位以及梁翼缘与环板接触的奇异点出现,并且首先在这些部位出现屈服。钢结构节点在弯矩的作用下,当钢结构节点屈服时,钢管柱跟梁腹板的应力都很小,整个钢结构节点的承载力主要由梁翼缘决定,所以当弯矩的作用效果明显大于剪力时,应当加强梁翼缘的强度。(2)钢结构节点在弯矩作用下的位移很小,在剪力的作用下位移较大。钢管柱灌注混凝土后,在一定程度上提高了钢结构节点的承载力。钢结构节点在弯矩跟剪力的共同作用下,钢管柱的应力很小。
[Abstract]:The main body of 2014 Qingdao World Horticultural Exposition adopts the space steel structure system, the surface is the glass curtain wall frame system. Steel structure is widely used in building structure, mainly because of its advantages such as easy installation, short construction period, light weight, low seismic effect, good seismic performance and less environmental pollution. According to the design and construction method and process of the expo, combined with the common problems, the causes of these problems are analyzed, and some measures are taken to strengthen them, and then the effectiveness of the above measures is verified by using finite element analysis. According to the analysis and study of various factors and structural forms by ANSYS software, the most reasonable structure and the whole structure form are put forward for the reference of engineering application. Through the theoretical analysis of the steel structure joints of glass curtain wall by ANSYS, considering the influence factors on its mechanical properties, a more reasonable joint form is designed, and it is hoped that it will be helpful to the design and construction staff. Through the study of the mechanical properties of steel structure, glass curtain wall, the derivation of theoretical formula and the finite element analysis of the structure, the most reasonable joint form can be obtained so as to bring about better economic and social effects for engineering application. In order to better understand the stress characteristics of steel structure joint, we establish a steel structure joint, and simulate it under the action of shear force alone, moment alone, shear force and bending moment acting together. The mechanical characteristics of the upper flange and the upper ring plate of the steel beam, the lower flange of the steel beam and the lower ring plate, the web plate of the steel beam and the steel tube column are systematically analyzed. It is concluded by analysis that the maximum stress points of steel structure joints first appear at the position where the steel tube column is in contact with the annular plate and at the singular point where the beam flange is in contact with the annular plate, and yield at the first place. Under the action of bending moment, the stress of steel tubular column and beam web plate is very small when the steel structure joint yield, the bearing capacity of the whole steel structure joint is mainly determined by the beam flange, so the effect of bending moment is obviously greater than that of shear force. The strength of beam flange should be strengthened. (2) the displacement of steel structure joints under bending moment is very small and the displacement is larger under shear force. The bearing capacity of steel structure joints is improved to some extent after pouring concrete into steel tubular columns. The stress of steel tubular column is very small under the joint of bending moment and shear force.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU391

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